From akrherz at iastate.edu Thu Jul 1 11:00:07 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Thu, 1 Jul 2010 11:00:07 -0500 Subject: IEM Daily Bulletin Message-ID: <201007011600.o61G07ae023640@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 01 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-06-30 | Title : June max temp and rainfall | Date : 30 Jun 05:09 AM | Votes : Good: 23 Bad: 3 +---------------------------------------------- The featured chart plots the relationship between the total rainfall during June with maximum temperature observed based on data from Ames. The red lines indicate the average value and the percentages show the frequency of the observations in each quadrant. Having both above average rainfall and maximum temperature is the least common combination, which makes physical sense as typically the warmest temperatures are associated with dry soils, which implies less precipitation. The 2010 value is shown with the red dot. > NWS Watch/Warning Summary for 30 Jun 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 29 0 | 0 0 0 0 0 | 2 Svr Tstorm 41 0 | 0 0 0 0 0 | 3 Fl Flood 22 0 | 0 0 0 0 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 68 Verified: 27 [39.7 %] Reduction of Size Versus County Based [78.3 %] Average Perimeter Ratio [23.5 %] Percentage of Warned Area Verified (15km) [15.5 %] Average Storm Based Warning Size [2119 sq km] Probability of Detection(higher is better)[0.78] False Alarm Ratio (lower is better) [0.60] Critical Success Index (higher is better) [0.36] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Fri Jul 2 11:00:05 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Fri, 2 Jul 2010 11:00:05 -0500 Subject: IEM Daily Bulletin Message-ID: <201007021600.o62G05mh014483@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 02 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-01 | Title : Plenty of rainy days | Date : 01 Jul 06:11 AM | Votes : Good: 20 Bad: 2 +---------------------------------------------- June is finally in the books! Des Moines had 22 days with measurable precipitation which ties a record set back in 1902. Even with all those rainy days, we ended June on a very dry note with day four of no-rain in progress today. Friday should be dry as well with rain holding off until the holiday weekend. Hurricane Alex looks to impact our weather on Sunday and possibly bring more heavy rainfall. > NWS Watch/Warning Summary for 01 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 8 0 | 0 0 0 0 0 | 1 Svr Tstorm 51 0 | 0 0 0 0 0 | 2 Fl Flood 19 0 | 0 0 0 0 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 55 Verified: 25 [45.5 %] Reduction of Size Versus County Based [79.3 %] Average Perimeter Ratio [21.2 %] Percentage of Warned Area Verified (15km) [14.6 %] Average Storm Based Warning Size [2534 sq km] Probability of Detection(higher is better)[0.78] False Alarm Ratio (lower is better) [0.55] Critical Success Index (higher is better) [0.40] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Sat Jul 3 11:00:10 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Sat, 3 Jul 2010 11:00:10 -0500 Subject: IEM Daily Bulletin Message-ID: <201007031600.o63G0Ah9030596@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 03 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-02 | Title : 5 straight sunrises | Date : 02 Jul 06:24 AM | Votes : Good: 30 Bad: 10 +---------------------------------------------- This week has been a remarkable for having mostly clear skies and high temperatures around 80, nearly perfect for summer! The featured image shows that the sunrise has been visible each day this work week and our streak may continue Saturday morning. All good things come to an end though with humidity returning this weekend along with thunderstorms on Sunday. > NWS Watch/Warning Summary for 02 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 2 0 | 0 0 0 0 0 | 0 Svr Tstorm 37 0 | 0 0 0 0 0 | 1 Fl Flood 13 0 | 0 0 0 0 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 36 Verified: 18 [50.0 %] Reduction of Size Versus County Based [77.0 %] Average Perimeter Ratio [33.3 %] Percentage of Warned Area Verified (15km) [14.7 %] Average Storm Based Warning Size [2685 sq km] Probability of Detection(higher is better)[0.60] False Alarm Ratio (lower is better) [0.50] Critical Success Index (higher is better) [0.37] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Sun Jul 4 11:00:07 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Sun, 4 Jul 2010 11:00:07 -0500 Subject: IEM Daily Bulletin Message-ID: <201007041600.o64G07Rv027909@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 04 July 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 03 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 3 0 | 0 0 0 0 0 | 0 Svr Tstorm 64 0 | 0 0 0 0 2 | 3 Fl Flood 15 0 | 0 0 0 0 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 67 Verified: 29 [43.3 %] Reduction of Size Versus County Based [78.7 %] Average Perimeter Ratio [29.1 %] Percentage of Warned Area Verified (15km) [13.3 %] Average Storm Based Warning Size [2343 sq km] Probability of Detection(higher is better)[0.84] False Alarm Ratio (lower is better) [0.57] Critical Success Index (higher is better) [0.40] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Mon Jul 5 11:00:16 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Mon, 5 Jul 2010 11:00:16 -0500 Subject: IEM Daily Bulletin Message-ID: <201007051600.o65G0Gvo014925@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 05 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-04 | Title : Lets hope this does not verify | Date : 04 Jul 07:02 AM | Votes : Good: 35 Bad: 5 +---------------------------------------------- The feature map is forecasted precipitation from NOAA's HPC. They have forecasted a swath exceeding 9 inches in southeast Iowa for the next 5 days! Some of this precipitation is thanks to the remnants of Hurricane Alex, which has brought a tropical airmass to Iowa. Let us hope this forecast does not verify, for if it does, we will have even worse flooding conditions on our hands after the extremely wet June. > NWS Watch/Warning Summary for 04 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 28 0 | 0 0 0 0 0 | 1 Svr Tstorm 56 0 | 0 0 0 0 0 | 1 Fl Flood 25 0 | 0 0 1 0 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 81 Verified: 28 [34.6 %] Reduction of Size Versus County Based [84.0 %] Average Perimeter Ratio [18.5 %] Percentage of Warned Area Verified (15km) [15.9 %] Average Storm Based Warning Size [1409 sq km] Probability of Detection(higher is better)[0.72] False Alarm Ratio (lower is better) [0.65] Critical Success Index (higher is better) [0.31] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Tue Jul 6 11:00:05 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Tue, 6 Jul 2010 11:00:05 -0500 Subject: IEM Daily Bulletin Message-ID: <201007061600.o66G05WL000818@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 06 July 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 05 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 0 0 | 0 0 0 0 0 | 0 Svr Tstorm 13 0 | 0 0 0 0 0 | 0 Fl Flood 13 2 | 2 1 1 0 3 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 13 Verified: 3 [23.1 %] Reduction of Size Versus County Based [71.4 %] Average Perimeter Ratio [33.2 %] Percentage of Warned Area Verified (15km) [7.6 %] Average Storm Based Warning Size [1793 sq km] Probability of Detection(higher is better)[0.67] False Alarm Ratio (lower is better) [0.77] Critical Success Index (higher is better) [0.21] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Wed Jul 7 11:00:07 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Wed, 7 Jul 2010 11:00:07 -0500 Subject: IEM Daily Bulletin Message-ID: <201007071600.o67G076D001949@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 07 July 2010 > News +---------------------------------------------- | Title : June AWOS Data Uploaded | Date : 06 Jul 12:14 PM | Author: Daryl Herzmann | URL : http://mesonet.agron.iastate.edu/request/awos/1min.php +----------------------------------------------

The one minute interval Iowa AWOS data for June 2010 has been uploaded to the IEM. This dataset is kindly provided to the IEM by the Iowa DOT Aviation Division on a monthly basis. The one minute interval data exists back to 1995 for many of the sites! > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-06 | Title : High humidities and rain return | Date : 06 Jul 05:08 AM | Votes : Good: 22 Bad: 3 +---------------------------------------------- Our break last week from the high humidities and rain ended this past weekend with dew points back in the 70s and some locations picking up heavy rainfall. The atmosphere above Iowa is currently loaded with moisture and efficient rainfall producing storms are able to dump rainfall at rates up to 2.5 inches per hour. Another break from the wet weather is expected on Thursday. > NWS Watch/Warning Summary for 06 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 14 0 | 0 0 0 0 8 | 1 Svr Tstorm 50 0 | 0 0 0 0 7 | 1 Fl Flood 30 0 | 0 0 0 0 1 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 63 Verified: 25 [39.7 %] Reduction of Size Versus County Based [81.3 %] Average Perimeter Ratio [20.6 %] Percentage of Warned Area Verified (15km) [21.5 %] Average Storm Based Warning Size [1299 sq km] Probability of Detection(higher is better)[0.70] False Alarm Ratio (lower is better) [0.60] Critical Success Index (higher is better) [0.34] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Thu Jul 8 11:00:09 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Thu, 8 Jul 2010 11:00:09 -0500 Subject: IEM Daily Bulletin Message-ID: <201007081600.o68G096v016512@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 08 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-07 | Title : Lots of water | Date : 07 Jul 06:07 AM | Votes : Good: 20 Bad: 8 +---------------------------------------------- The featured chart is from the excellent precipitable water climatology page on the Rapid City, SD NWS website. The chart displays the observed monthly ranges of the amount of water in the atmosphere. On Monday evening, the Davenport sounding had well over 2 inches of water observed, which is near the maximum end of the range. All of this water in the atmosphere makes for efficient rainers as slow moving storms are able to quickly process all of that water in the column. > NWS Watch/Warning Summary for 07 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 8 0 | 1 0 0 0 0 | 0 Svr Tstorm 10 0 | 0 0 0 0 3 | 0 Fl Flood 33 11 | 2 2 8 0 2 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 18 Verified: 3 [16.7 %] Reduction of Size Versus County Based [86.2 %] Average Perimeter Ratio [28.3 %] Percentage of Warned Area Verified (15km) [9.1 %] Average Storm Based Warning Size [784 sq km] Probability of Detection(higher is better)[0.63] False Alarm Ratio (lower is better) [0.83] Critical Success Index (higher is better) [0.15] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Fri Jul 9 11:00:04 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Fri, 9 Jul 2010 11:00:04 -0500 Subject: IEM Daily Bulletin Message-ID: <201007091600.o69G0495030553@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 09 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-08 | Title : Waterloo Event | Date : 08 Jul 05:13 AM | Votes : Good: 41 Bad: 8 +---------------------------------------------- The featured map is of rainfall estimates yesterday by the National Mosaic and QPE (NMQ) project for the Waterloo area. Slow moving and efficient rainfall producing storms were able to quickly dump up to 8 inches of rain over portions of southeast Waterloo. The Waterloo Airport (on the other end of town and only about 8 miles away) only reported just over an inch. This sort of extreme small spatial scale variability is common with slow moving storms. > NWS Watch/Warning Summary for 08 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 3 0 | 0 0 0 0 0 | 0 Svr Tstorm 25 0 | 0 0 0 0 0 | 0 Fl Flood 48 0 | 0 0 0 0 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 25 Verified: 10 [40.0 %] Reduction of Size Versus County Based [72.4 %] Average Perimeter Ratio [23.4 %] Percentage of Warned Area Verified (15km) [21.0 %] Average Storm Based Warning Size [895 sq km] Probability of Detection(higher is better)[0.48] False Alarm Ratio (lower is better) [0.60] Critical Success Index (higher is better) [0.28] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Sat Jul 10 11:00:06 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Sat, 10 Jul 2010 11:00:06 -0500 Subject: IEM Daily Bulletin Message-ID: <201007101600.o6AG06OP021541@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 10 July 2010 > News +---------------------------------------------- | Title : June ASOS data uploaded | Date : 09 Jul 02:52 PM | Author: Daryl Herzmann | URL : http://mesonet.agron.iastate.edu/plotting/asos/1station_1min.phtml +----------------------------------------------

The one minute interval Iowa ASOS data for June has been uploaded to the IEM. The data for Sioux Falls, Omaha, and Moline is included as well. Enjoy checking out all the high resolution precipitation data for the month. > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-09 | Title : 2+ inch rainfalls | Date : 09 Jul 06:11 AM | Votes : Good: 27 Bad: 7 +---------------------------------------------- The featured chart looks at the percentage of long term climate sites that observe a greater than two inch rainfall per year. There are 104 sites in Iowa, that the IEM has precipitation data back to 1951, used for this chart. Based on IEM estimates for 2010, roughly half of these locations have seen a 2+ inch rainfall, which is behind the pace set in the past 3 years. The dots represent the final total for the year with 2007/2008 sticking out as almost every location in the state experiencing a heavy rainfall event. Another take home message of this plot is that more heavy rainfall events will occur as summer is only a few weeks old. > NWS Watch/Warning Summary for 09 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 0 0 | 0 0 0 0 0 | 0 Svr Tstorm 77 0 | 0 0 0 0 0 | 0 Fl Flood 25 0 | 0 0 0 0 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 77 Verified: 47 [61.0 %] Reduction of Size Versus County Based [75.9 %] Average Perimeter Ratio [37.8 %] Percentage of Warned Area Verified (15km) [32.6 %] Average Storm Based Warning Size [1141 sq km] Probability of Detection(higher is better)[0.78] False Alarm Ratio (lower is better) [0.39] Critical Success Index (higher is better) [0.52] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Sun Jul 11 11:00:07 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Sun, 11 Jul 2010 11:00:07 -0500 Subject: IEM Daily Bulletin Message-ID: <201007111600.o6BG075r020540@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 11 July 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 10 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 13 0 | 0 0 0 0 0 | 1 Svr Tstorm 147 0 | 2 1 0 0 16 | 3 Fl Flood 13 0 | 0 0 0 0 2 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 158 Verified: 67 [42.4 %] Reduction of Size Versus County Based [74.3 %] Average Perimeter Ratio [35.8 %] Percentage of Warned Area Verified (15km) [18.5 %] Average Storm Based Warning Size [1366 sq km] Probability of Detection(higher is better)[0.78] False Alarm Ratio (lower is better) [0.58] Critical Success Index (higher is better) [0.38] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Mon Jul 12 11:00:09 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Mon, 12 Jul 2010 11:00:09 -0500 Subject: IEM Daily Bulletin Message-ID: <201007121600.o6CG09TK025223@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 12 July 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 11 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 22 0 | 0 0 0 0 0 | 1 Svr Tstorm 154 1 | 1 0 0 1 1 | 7 Fl Flood 26 0 | 0 0 0 0 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 174 Verified: 70 [40.2 %] Reduction of Size Versus County Based [74.6 %] Average Perimeter Ratio [27.3 %] Percentage of Warned Area Verified (15km) [18.5 %] Average Storm Based Warning Size [1337 sq km] Probability of Detection(higher is better)[0.78] False Alarm Ratio (lower is better) [0.60] Critical Success Index (higher is better) [0.36] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Tue Jul 13 11:00:08 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Tue, 13 Jul 2010 11:00:08 -0500 Subject: IEM Daily Bulletin Message-ID: <201007131600.o6DG08CA022214@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 13 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-12 | Title : Wet and Dry Months | Date : 12 Jul 05:10 AM | Votes : Good: 15 Bad: 9 +---------------------------------------------- Based on preliminary data, nearly each of the IEM tracked Iowa climate sites exceeded their average precipitation for June. The featured chart looks at the percentage of these sites that exceed their monthly average since Jan 2007. The chart shows a lot of month to month variability. The April - July period in 2008 sticks out as a period with four months in a row over 80%. > NWS Watch/Warning Summary for 12 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 20 0 | 0 1 0 0 0 | 0 Svr Tstorm 146 2 | 0 0 2 1 0 | 6 Fl Flood 49 1 | 0 1 0 0 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 162 Verified: 68 [42.0 %] Reduction of Size Versus County Based [76.3 %] Average Perimeter Ratio [28.2 %] Percentage of Warned Area Verified (15km) [19.4 %] Average Storm Based Warning Size [1474 sq km] Probability of Detection(higher is better)[0.79] False Alarm Ratio (lower is better) [0.58] Critical Success Index (higher is better) [0.38] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Wed Jul 14 11:00:05 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Wed, 14 Jul 2010 11:00:05 -0500 Subject: IEM Daily Bulletin Message-ID: <201007141600.o6EG05r1017207@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 14 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-13 | Title : Wet periods in Iowa History | Date : 13 Jul 07:06 AM | Votes : Good: 30 Bad: 2 +---------------------------------------------- The featured chart displays the wettest statewide 31 day periods since the year 1900. According to IEM estimates, there have only been 4 years that have seen at least one 31 day period with over 10 inches of precipitation. The epic year of 1993 had a solid two months of heavy rainfall with the heaviest 31 days shown at 12.26 inches. Two of the past three years have seen a heavy rainfall period with 2008 coming in just slightly ahead. > NWS Watch/Warning Summary for 13 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 21 0 | 0 0 0 0 0 | 1 Svr Tstorm 78 0 | 0 0 0 0 0 | 5 Fl Flood 45 0 | 0 1 0 0 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 94 Verified: 39 [41.5 %] Reduction of Size Versus County Based [78.3 %] Average Perimeter Ratio [30.3 %] Percentage of Warned Area Verified (15km) [24.5 %] Average Storm Based Warning Size [1306 sq km] Probability of Detection(higher is better)[0.80] False Alarm Ratio (lower is better) [0.59] Critical Success Index (higher is better) [0.38] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Thu Jul 15 11:00:11 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Thu, 15 Jul 2010 11:00:11 -0500 Subject: IEM Daily Bulletin Message-ID: <201007151600.o6FG0B6Q014524@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 15 July 2010 > News +---------------------------------------------- | Title : 80+ Dewpoints on 14 July | Date : 14 Jul 06:32 PM | Author: Daryl Herzmann | URL : http://mesonet.agron.iastate.edu/ +----------------------------------------------

Wednesday was certainly a very muggy day in Iowa. Dew point temperatures (a measure of the amount of moisture in the atmosphere) soared around 80 degrees at a number of observing sites. This news item summarizes some IEM computed tidbits on the extreme dewpoints of 14 July 2010.

In Iowa, the primary weather observation sites are located at the airports. There are two classes of sensors used at these sites. One class is known as ASOS and are operated by the federal government. Another is known as AWOS and are maintained by the state. In general, the AWOS sites are located literally in the middle of crop fields and use a temperature/humidity sensor that struggles at extreme values. Unless noted, data presented below are for ASOS sites and are generally considered accurate and representative.

The following presents a summary of the maximum dewpoint observed at ASOS sites and the previous date of a 80+ degree dewpoint. 

ID  NAME          MAX   LAST 80+     ALLTIME MAX      DATA SINCE
AMW Ames          81   23 Jun 2009   84-29 Jul 1999   1997
BRL Burlington    81   23 Jun 2009   82-29 Jul 1999   1973
DBQ Dubuque       80   20 Jul 2002   82-13 Jul 1995   1973
CID Cedar Rapids  80   23 Jul 2005   87-13 Jul 1995   1973
DVN Davenport     77   13 Jul 2004   83-29 Jul 1999   1997
DSM Des Moines    80    3 Aug 2004   84- 6 Sep 1998   1970
EST Esterville    78    3 Aug 2008   83-29 Jul 1999   1997
IOW Iowa City     80   18 Jun 2009   84-20 Aug 1998   1997
LWD Lamoni        80    3 Aug 2004   80               1998
MIW Marshalltown  81    3 Aug 2008   83-29 Jul 1999   1997 
MCW Mason City    81   25 Jul 2005   83-29 Jul 1999   1961
OTM Ottumwa       81    3 Aug 2004   82-18 Jul 1996   1973
SPW Spencer       79    6 Aug 2001   82-29 Jul 1999   1973
ALO Waterloo      82    8 Aug 2009   83-29 Jul 1999   1970
SUX Sioux City    80   23 Jun 2009   83-22 Jul 2005   1961

So 12 ASOS sites hit 80+ today, this is rather unprecidented. One has to go back to 23 July 2005 to find widespread observations of 80+ dew points. 29 July 1999 is the most recent comparable day to today.

For AWOS sites, Newton reported a dew point of 88, Fairfield 86, Knoxville 85, Vinton 85, and Orange City 85. > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-14 | Title : The heat is on | Date : 14 Jul 06:22 AM | Votes : Good: 42 Bad: 6 +---------------------------------------------- Hot temperatures and tropical air are expected to conspire today to push heat indices well above 100 degrees. The featured chart displays the maximum heat index for the past 40 years at the Des Moines Airport sensor. Since 1989, exceeding 100 degrees has not been all that common and the highest recorded value was 110, which happened last year. All of this heat and humidity will help to fire strong thunderstorms this evening with the Storm Prediction Center issuing a moderate risk of severe weather today. > NWS Watch/Warning Summary for 14 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 36 0 | 3 0 0 0 0 | 5 Svr Tstorm 195 7 | 20 0 4 17 1 | 4 Fl Flood 28 0 | 2 0 0 3 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 222 Verified: 113 [50.9 %] Reduction of Size Versus County Based [58.3 %] Average Perimeter Ratio [37.4 %] Percentage of Warned Area Verified (15km) [16.3 %] Average Storm Based Warning Size [3144 sq km] Probability of Detection(higher is better)[0.80] False Alarm Ratio (lower is better) [0.49] Critical Success Index (higher is better) [0.45] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Fri Jul 16 11:00:06 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Fri, 16 Jul 2010 11:00:06 -0500 Subject: IEM Daily Bulletin Message-ID: <201007161600.o6GG06Uj001060@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 16 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-15 | Title : 10,000+ CAPE | Date : 15 Jul 07:09 AM | Votes : Good: 35 Bad: 10 +---------------------------------------------- The featured map displays the RUC computer weather model forecast of surface based CAPE for yesterday afternoon. CAPE is a measure of the vertical accelerations possible if air is forced upward initially. Typically, values of around 3,000 indicate severe storms are possible. Due to the extreme surface temperatures and dew points yesterday, values were over 10,000 J/Kg. Values this large are extremely rare. > NWS Watch/Warning Summary for 15 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 5 0 | 0 0 0 0 0 | 0 Svr Tstorm 114 0 | 0 0 0 0 0 | 3 Fl Flood 36 0 | 0 0 0 0 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 118 Verified: 47 [39.8 %] Reduction of Size Versus County Based [82.3 %] Average Perimeter Ratio [30.6 %] Percentage of Warned Area Verified (15km) [18.6 %] Average Storm Based Warning Size [1296 sq km] Probability of Detection(higher is better)[0.67] False Alarm Ratio (lower is better) [0.60] Critical Success Index (higher is better) [0.33] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Sat Jul 17 11:00:07 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Sat, 17 Jul 2010 11:00:07 -0500 Subject: IEM Daily Bulletin Message-ID: <201007171600.o6HG07Cn015687@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 17 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-16 | Title : Extreme Dewpoints | Date : 16 Jul 05:13 AM | Votes : Good: 44 Bad: 4 +---------------------------------------------- The featured map displays maximum observed dewpoints on this past Wednesday. Observation sites in both the ASOS and AWOS networks reported dewpoints in the lower 80s, which is a rare event. Dewpoint values just in the lower 70s are considered dangerous! A front was able to sweep the state clean of this obscene air for now, but there is plenty of time in summer left for it to return. > NWS Watch/Warning Summary for 16 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 4 4 | 0 0 4 0 0 | 0 Svr Tstorm 141 11 | 2 0 10 2 1 | 1 Fl Flood 56 0 | 0 0 0 0 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 144 Verified: 75 [52.1 %] Reduction of Size Versus County Based [79.4 %] Average Perimeter Ratio [26.2 %] Percentage of Warned Area Verified (15km) [27.3 %] Average Storm Based Warning Size [1005 sq km] Probability of Detection(higher is better)[0.72] False Alarm Ratio (lower is better) [0.48] Critical Success Index (higher is better) [0.43] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Sun Jul 18 11:00:11 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Sun, 18 Jul 2010 11:00:11 -0500 Subject: IEM Daily Bulletin Message-ID: <201007181600.o6IG0BBK022935@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 18 July 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 17 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 24 1 | 0 0 1 0 1 | 2 Svr Tstorm 265 2 | 3 0 3 0 12 | 2 Fl Flood 34 1 | 0 0 0 0 3 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 286 Verified: 138 [48.3 %] Reduction of Size Versus County Based [71.6 %] Average Perimeter Ratio [31.6 %] Percentage of Warned Area Verified (15km) [22.0 %] Average Storm Based Warning Size [1814 sq km] Probability of Detection(higher is better)[0.81] False Alarm Ratio (lower is better) [0.52] Critical Success Index (higher is better) [0.43] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Mon Jul 19 11:00:12 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Mon, 19 Jul 2010 11:00:12 -0500 Subject: IEM Daily Bulletin Message-ID: <201007191600.o6JG0CwJ015756@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 19 July 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 18 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 17 5 | 0 0 5 0 0 | 0 Svr Tstorm 170 17 | 1 4 16 6 1 | 7 Fl Flood 20 3 | 0 0 3 0 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 186 Verified: 87 [46.8 %] Reduction of Size Versus County Based [63.9 %] Average Perimeter Ratio [34.0 %] Percentage of Warned Area Verified (15km) [15.3 %] Average Storm Based Warning Size [2374 sq km] Probability of Detection(higher is better)[0.80] False Alarm Ratio (lower is better) [0.53] Critical Success Index (higher is better) [0.42] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Tue Jul 20 11:00:11 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Tue, 20 Jul 2010 11:00:11 -0500 Subject: IEM Daily Bulletin Message-ID: <201007201600.o6KG0Bdh026329@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 20 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-19 | Title : Rough Saturday Night | Date : 19 Jul 06:56 AM | Votes : Good: 23 Bad: 10 +---------------------------------------------- Many times the IEM feature has lamented storms avoiding Ames on their path over the state. On Saturday Night, a very powerful storm complex brought winds upwards of 80 mph from Fort Dodge south through Ames and Des Moines. More powerful storms are expected today with a chance of strong tornados. > NWS Watch/Warning Summary for 19 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 16 0 | 0 0 2 0 0 | 0 Svr Tstorm 191 3 | 0 3 2 2 2 | 6 Fl Flood 29 0 | 0 2 0 0 1 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 203 Verified: 128 [63.1 %] Reduction of Size Versus County Based [72.6 %] Average Perimeter Ratio [32.1 %] Percentage of Warned Area Verified (15km) [25.1 %] Average Storm Based Warning Size [1983 sq km] Probability of Detection(higher is better)[0.84] False Alarm Ratio (lower is better) [0.37] Critical Success Index (higher is better) [0.56] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Wed Jul 21 11:00:09 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Wed, 21 Jul 2010 11:00:09 -0500 Subject: IEM Daily Bulletin Message-ID: <201007211600.o6LG09R2019468@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 21 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-20 | Title : And yet another heavy rainfall | Date : 20 Jul 10:12 AM | Votes : Good: 14 Bad: 5 +---------------------------------------------- A stalled out front helped to focus thunderstorm development last night over southern Iowa and the storms did not leave the area until this morning. The featured map displays NWS COOP rainfall reports at 7 AM this morning with parts of Wayne and Appanoose counties well over four inches. Unfortunately, more storms are in the forecast as the seemingly non-stop storms since the beginning of June continues. > NWS Watch/Warning Summary for 20 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 24 0 | 0 0 0 0 0 | 0 Svr Tstorm 199 3 | 2 0 2 5 0 | 7 Fl Flood 46 1 | 0 1 2 0 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 219 Verified: 94 [42.9 %] Reduction of Size Versus County Based [74.1 %] Average Perimeter Ratio [33.0 %] Percentage of Warned Area Verified (15km) [21.7 %] Average Storm Based Warning Size [1424 sq km] Probability of Detection(higher is better)[0.84] False Alarm Ratio (lower is better) [0.57] Critical Success Index (higher is better) [0.40] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Thu Jul 22 11:00:12 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Thu, 22 Jul 2010 11:00:12 -0500 Subject: IEM Daily Bulletin Message-ID: <201007221600.o6MG0C64006166@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 22 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-21 | Title : Scary Models | Date : 21 Jul 06:54 AM | Votes : Good: 28 Bad: 5 +---------------------------------------------- The featured map is forecasted precipitation from the NAM weather forecast model from a run yesterday afternoon showing Iowa getting a tremendous amount of rainfall through Thursday afternoon (over 10 inches is the highest amount). These forecast models are run multiple times per day and the latest runs have moved this precipitation bullseye around a lot. Regardless, extremely heavy rainfall is set to fall somewhere in the midwest. > NWS Watch/Warning Summary for 21 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 22 0 | 0 0 0 0 0 | 0 Svr Tstorm 217 0 | 0 0 0 0 5 | 7 Fl Flood 47 0 | 0 0 0 1 5 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 237 Verified: 130 [54.9 %] Reduction of Size Versus County Based [76.2 %] Average Perimeter Ratio [25.4 %] Percentage of Warned Area Verified (15km) [25.5 %] Average Storm Based Warning Size [1745 sq km] Probability of Detection(higher is better)[0.78] False Alarm Ratio (lower is better) [0.45] Critical Success Index (higher is better) [0.47] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Fri Jul 23 11:00:18 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Fri, 23 Jul 2010 11:00:18 -0500 Subject: IEM Daily Bulletin Message-ID: <201007231600.o6NG0IbR024288@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 23 July 2010 > News +---------------------------------------------- | Title : MOS Download App | Date : 23 Jul 10:31 AM | Author: Daryl Herzmann | URL : http://mesonet.agron.iastate.edu/mos/fe.phtml +----------------------------------------------

The IEM has been archiving National Weather Service Model Output Statistics (MOS) since early 2007. This dataset provides processed weather model forecasts based on local site statistics.

I finally got around to adding a simple app for you to download from this archive. At this time, you do need to know your local site identifier, but if you are interested in MOS data, you probably already know it :) Yeah, the weather nerd factor on this dataset is rather high.

All MOS sites are archived, not just Iowa nor United States. +---------------------------------------------- | Title : NWS Products by Office by Date | Date : 23 Jul 09:43 AM | Author: Daryl Herzmann | URL : http://mesonet.agron.iastate.edu/wx/afos/list.phtml +----------------------------------------------

The IEM has an ever growing archive of National Weather Service issued text products. While NCDC has the motherlode of an archive of this dataset, it is sometimes slow to quickly get products you want.

I threw together a quick application that displays NWS Forecast Office issued text products on a per day basis. You can view the products chronologically for a day or in a grid view by product. Hopefully folks find it useful, my initial feedback was positive :) > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-22 | Title : Loading up with water | Date : 22 Jul 06:14 AM | Votes : Good: 28 Bad: 6 +---------------------------------------------- The featured chart displays a forecast model's initial analysis along with the latest forecast of precipitable water approximately for Ames. This value can be considered the depth of water in the atmosphere if all of it was squeezed out. When values exceed two inches, slow moving thunderstorms are able to quickly dump lots of rain. The heaviest rains this morning are just north of Ames with a report of 5 inches already around Fort Dodge. > NWS Watch/Warning Summary for 22 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 43 0 | 0 1 0 0 0 | 6 Svr Tstorm 70 4 | 0 1 2 0 2 | 1 Fl Flood 26 4 | 2 4 1 0 2 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 109 Verified: 37 [33.9 %] Reduction of Size Versus County Based [77.1 %] Average Perimeter Ratio [25.9 %] Percentage of Warned Area Verified (15km) [17.4 %] Average Storm Based Warning Size [1346 sq km] Probability of Detection(higher is better)[0.63] False Alarm Ratio (lower is better) [0.66] Critical Success Index (higher is better) [0.28] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Sat Jul 24 11:00:08 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Sat, 24 Jul 2010 11:00:08 -0500 Subject: IEM Daily Bulletin Message-ID: <201007241600.o6OG08op017225@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 24 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-23 | Title : More heavy rainfall events to go | Date : 23 Jul 05:09 AM | Votes : Good: 52 Bad: 7 +---------------------------------------------- The featured chart presents the number of distinct days per year that at least one NWS COOP site reported over two inches of rain in a 24 hour period. The mean value in this chart is close to 40, which means that we have roughly only seen half of the number of heavy rainfall events for the year so far! The flood year of 1993 shows up as the largest value of 61 days. More heavy rainers are in the state this morning with another round expected tonight into Saturday morning. > NWS Watch/Warning Summary for 23 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 15 2 | 0 0 2 0 4 | 3 Svr Tstorm 130 4 | 0 4 4 2 18 | 5 Fl Flood 29 8 | 3 2 5 0 1 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 140 Verified: 71 [50.7 %] Reduction of Size Versus County Based [70.5 %] Average Perimeter Ratio [35.7 %] Percentage of Warned Area Verified (15km) [26.6 %] Average Storm Based Warning Size [1728 sq km] Probability of Detection(higher is better)[0.85] False Alarm Ratio (lower is better) [0.49] Critical Success Index (higher is better) [0.47] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Sun Jul 25 11:00:06 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Sun, 25 Jul 2010 11:00:06 -0500 Subject: IEM Daily Bulletin Message-ID: <201007251600.o6PG06Su031715@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 25 July 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 24 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 12 0 | 0 0 0 0 0 | 1 Svr Tstorm 85 1 | 0 2 1 0 0 | 4 Fl Flood 40 5 | 3 4 1 0 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 96 Verified: 50 [52.1 %] Reduction of Size Versus County Based [72.4 %] Average Perimeter Ratio [39.4 %] Percentage of Warned Area Verified (15km) [26.3 %] Average Storm Based Warning Size [1602 sq km] Probability of Detection(higher is better)[0.64] False Alarm Ratio (lower is better) [0.48] Critical Success Index (higher is better) [0.40] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Mon Jul 26 11:00:07 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Mon, 26 Jul 2010 11:00:07 -0500 Subject: IEM Daily Bulletin Message-ID: <201007261600.o6QG07BL031582@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 26 July 2010 > News +---------------------------------------------- | Title : 31 million hits | Date : 26 Jul 07:20 AM | Author: Daryl Herzmann | URL : http://mesonet.agron.iastate.edu/usage/ +----------------------------------------------

The IEM webfarm did 31 million hits this past Friday, which sets another milestone for the site. Previous milestones include: 

17 Jun 2001:    1rst hit
25 Jun 2001:      1,000+
19 Sep 2001:     10,000+
19 Mar 2004:    100,000+
25 May 2005:    200,000+
30 May 2006:    500,000+
29 Nov 2006:  1,000,000+
24 Feb 2007:  2,000,000+
17 Oct 2007:  3,000,000+
 5 Feb 2008:  4,000,000+
27 May 2008:  5,000,000+
 5 Jun 2008:  8,000,000+
15 Jul 2009: 10,000,000+
 7 Jan 2010: 15,000,000+
29 Jan 2010: 16,000,000+
 9 Feb 2010: 18,000,000+
23 Apr 2010: 19,000,000+
24 Apr 2010: 22,000,000+
14 May 2010: 23,000,000+
23 Jun 2010: 28,000,000+
23 Jul 2010: 31,000,000+
> Daily Feature No feature posted > NWS Watch/Warning Summary for 25 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 9 0 | 0 0 0 0 0 | 0 Svr Tstorm 113 0 | 0 0 0 0 0 | 2 Fl Flood 27 0 | 0 0 0 0 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 120 Verified: 62 [51.7 %] Reduction of Size Versus County Based [69.2 %] Average Perimeter Ratio [30.7 %] Percentage of Warned Area Verified (15km) [27.1 %] Average Storm Based Warning Size [1931 sq km] Probability of Detection(higher is better)[0.86] False Alarm Ratio (lower is better) [0.48] Critical Success Index (higher is better) [0.48] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Tue Jul 27 11:00:08 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Tue, 27 Jul 2010 11:00:08 -0500 Subject: IEM Daily Bulletin Message-ID: <201007271600.o6RG08L5024027@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 27 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-26 | Title : A break to end July | Date : 26 Jul 06:03 AM | Votes : Good: 34 Bad: 2 +---------------------------------------------- The forecast for this week looks much drier than previous weeks, which is certainly a welcome break. Interestingly, this break coincides with a climatological relative lull in daily precipitation probabilities. The featured chart presents the daily frequency of precipitation reported for Ames with a seven day smooth applied to remove some of the noise. Notice how the end of July has a smaller frequency before the beginning of August. > NWS Watch/Warning Summary for 26 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 22 0 | 0 0 0 0 0 | 1 Svr Tstorm 226 0 | 0 0 0 0 0 | 3 Fl Flood 63 0 | 0 0 0 0 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 243 Verified: 105 [43.2 %] Reduction of Size Versus County Based [84.2 %] Average Perimeter Ratio [24.7 %] Percentage of Warned Area Verified (15km) [23.7 %] Average Storm Based Warning Size [1091 sq km] Probability of Detection(higher is better)[0.75] False Alarm Ratio (lower is better) [0.57] Critical Success Index (higher is better) [0.38] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Wed Jul 28 11:00:09 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Wed, 28 Jul 2010 11:00:09 -0500 Subject: IEM Daily Bulletin Message-ID: <201007281600.o6SG09sG010246@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 28 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-27 | Title : Foot of rainfall events | Date : 27 Jul 06:11 AM | Votes : Good: 22 Bad: 3 +---------------------------------------------- Heavy rainfall events have once again been common this July with some locations in northeast and southern Iowa unlucky enough to experience multiple heavy rainfall events. The featured chart presents the number of times per year a NWS COOP site has reported more than 12 inches of rainfall. 1993 shows up very prominently with a total double that of any other year. The 2010 total is only year to date, so perhaps this years total will surpass 2008. Let us hope not! > NWS Watch/Warning Summary for 27 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 21 0 | 0 0 0 0 1 | 2 Svr Tstorm 144 0 | 2 0 0 0 3 | 3 Fl Flood 37 0 | 0 0 0 0 1 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 164 Verified: 59 [36.0 %] Reduction of Size Versus County Based [75.5 %] Average Perimeter Ratio [29.5 %] Percentage of Warned Area Verified (15km) [14.1 %] Average Storm Based Warning Size [2241 sq km] Probability of Detection(higher is better)[0.77] False Alarm Ratio (lower is better) [0.64] Critical Success Index (higher is better) [0.32] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Thu Jul 29 11:00:06 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Thu, 29 Jul 2010 11:00:06 -0500 Subject: IEM Daily Bulletin Message-ID: <201007291600.o6TG06hh007887@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 29 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-28 | Title : Not all have seen the heavy rain | Date : 28 Jul 06:10 AM | Votes : Good: 38 Bad: 6 +---------------------------------------------- July has been another very wet month for many locations in Iowa. The featured map displays estimated rainfall totals with some areas over twelve inches of rain for July. There are some areas in the state shown in the light green, which would be near average for the month. Showers are visiting the state this morning, but the heaviest rainfall should occur for locations outside of the state. Heavier rainfall is expected next week. > NWS Watch/Warning Summary for 28 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 3 0 | 0 0 0 0 0 | 0 Svr Tstorm 113 0 | 0 0 0 0 0 | 3 Fl Flood 23 0 | 0 0 0 0 0 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 116 Verified: 63 [54.3 %] Reduction of Size Versus County Based [79.3 %] Average Perimeter Ratio [24.6 %] Percentage of Warned Area Verified (15km) [22.5 %] Average Storm Based Warning Size [1386 sq km] Probability of Detection(higher is better)[0.84] False Alarm Ratio (lower is better) [0.46] Critical Success Index (higher is better) [0.49] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Fri Jul 30 11:00:08 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Fri, 30 Jul 2010 11:00:08 -0500 Subject: IEM Daily Bulletin Message-ID: <201007301600.o6UG08L6000418@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 30 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-29 | Title : Muggy Hours | Date : 29 Jul 06:47 AM | Votes : Good: 30 Bad: 7 +---------------------------------------------- The featured chart presents the IEM computed number of hours per year that the Des Moines Airport ASOS reports a dew point at or above 70 degrees F. The year to date total for this year is the second largest since 1970 and already larger than the full year totals for the past four years. Thankfully our dew points today will be well below 70 making for a nice summer day. Humidities will be on the rise for next week along with thunderstorm chances. > NWS Watch/Warning Summary for 29 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 7 0 | 0 0 0 0 0 | 1 Svr Tstorm 101 0 | 0 0 0 0 0 | 2 Fl Flood 34 0 | 0 0 0 0 3 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 104 Verified: 51 [49.0 %] Reduction of Size Versus County Based [80.7 %] Average Perimeter Ratio [18.1 %] Percentage of Warned Area Verified (15km) [18.8 %] Average Storm Based Warning Size [1821 sq km] Probability of Detection(higher is better)[0.76] False Alarm Ratio (lower is better) [0.51] Critical Success Index (higher is better) [0.43] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Sat Jul 31 11:00:05 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Sat, 31 Jul 2010 11:00:05 -0500 Subject: IEM Daily Bulletin Message-ID: <201007311600.o6VG05n3032645@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 31 July 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-07-30 | Title : 2010 Severe Weather Events | Date : 30 Jul 06:09 AM | Votes : Good: 32 Bad: 10 +---------------------------------------------- The featured map displays an IEM computed statistic of how many severe weather events by NWS Forecast Office there have been so far this year. An event is a day where an office issued at least 5 severe or tornado warnings. Places like North Dakota have seen an active year compared with most of Texas and Florida. Some severe weather is possible today along with heavy rainfall. > NWS Watch/Warning Summary for 30 Jul 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 0 0 | 0 0 0 0 0 | 0 Svr Tstorm 42 0 | 0 0 0 0 0 | 1 Fl Flood 44 0 | 0 1 0 0 5 | N/A ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD > IEM Cow Report SVR+TOR Warnings Issued: 42 Verified: 5 [11.9 %] Reduction of Size Versus County Based [85.9 %] Average Perimeter Ratio [20.9 %] Percentage of Warned Area Verified (15km) [4.3 %] Average Storm Based Warning Size [1232 sq km] Probability of Detection(higher is better)[0.38] False Alarm Ratio (lower is better) [0.88] Critical Success Index (higher is better) [0.10] -------------- next part -------------- An HTML attachment was scrubbed... URL: