From akrherz at iastate.edu Mon Mar 1 11:01:03 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Mon, 1 Mar 2010 11:01:03 -0600 Subject: IEM Daily Bulletin Message-ID: <201003011701.o21H13Mq024995@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 01 March 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 28 Feb 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 0 0 | 0 0 0 0 0 | 0 Fl Flood 0 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 No Warnings Issued -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Tue Mar 2 11:01:03 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Tue, 2 Mar 2010 11:01:03 -0600 Subject: IEM Daily Bulletin Message-ID: <201003021701.o22H13f2030363@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 02 March 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-03-01 | Title : Sun is doing all the work | Date : 01 Mar 06:08 AM | Votes : Good: 28 Bad: 15 +---------------------------------------------- The featured graph displays the combination of wind direction, solar radiation, and air temperature for the past three days. While we have seen plenty of sunshine, a persistent northwesterly breeze has not helped to warm our temperatures any. The uptrend of temperature is nicely shown with the sun making a degree or two of progress each day. This pattern looks to continue this week until a winter storm arrives for the weekend. Perhaps this pattern will break next week with southerly winds helping out the sun's effort to melt the snow! > NWS Watch/Warning Summary for 01 Mar 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 3 0 | 0 0 0 0 0 | 0 Fl Flood 0 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: 3 Verified: 0 [0.0 %] Reduction of Size Versus County Based [62.4 %] Average Perimeter Ratio [22.9 %] Percentage of Warned Area Verified (15km) [0.0 %] Average Storm Based Warning Size [2045 sq km] Probability of Detection(higher is better)[0.00] False Alarm Ratio (lower is better) [1.00] Critical Success Index (higher is better) [0.00] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Wed Mar 3 11:01:03 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Wed, 3 Mar 2010 11:01:03 -0600 Subject: IEM Daily Bulletin Message-ID: <201003031701.o23H13o9002489@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 03 March 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-03-02 | Title : Spring is coming? | Date : 02 Mar 04:58 AM | Votes : Good: 38 Bad: 11 +---------------------------------------------- The featured plot shows a model forecast time series for this coming weekend. The long range models have been insisting on a dramatic warm up along with the chance of considerable heavy rainfall as shown by an inch of precipitation accumulated from Sunday into Tuesday with temperatures well above freezing. If this forecast verifies, it would probably spell trouble for Iowa's ice covered rivers. Regardless, this would be the warmest air we have seen in just over 3 months. > NWS Watch/Warning Summary for 02 Mar 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 0 0 | 0 0 0 0 0 | 0 Fl Flood 0 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 No Warnings Issued -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Thu Mar 4 11:01:03 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Thu, 4 Mar 2010 11:01:03 -0600 Subject: IEM Daily Bulletin Message-ID: <201003041701.o24H13gZ004393@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 04 March 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-03-03 | Title : Late this year | Date : 03 Mar 06:11 AM | Votes : Good: 30 Bad: 8 +---------------------------------------------- The featured chart presents the earliest and latest occurrence of a temperature threshold after the first of the year. Many parts of the state have yet to reach 40 degrees, which is approaching a record as shown on the chart for Ames. It is interesting to note how the "latest" line flattens out around 32 F, which basically shows the influence of a deep snowpack in February and early March (much like what is happening this year). This chart also shows that some years, by this date, we have experienced temperatures above 70 degrees. Imagine what that must feel like! > NWS Watch/Warning Summary for 03 Mar 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 0 0 | 0 0 0 0 0 | 0 Fl Flood 0 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 No Warnings Issued -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Fri Mar 5 11:02:03 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Fri, 5 Mar 2010 11:02:03 -0600 Subject: IEM Daily Bulletin Message-ID: <201003051702.o25H23oi015422@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 05 March 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-03-04 | Title : Temperature Analytics | Date : 04 Mar 06:15 AM | Votes : Good: 48 Bad: 10 +---------------------------------------------- Our last two weather sessions have seen temperatures test the 32 degree resistance line only to fall back below late in the day. Our trend continues in a nice rising bearish wedge with both higher highs and higher lows set each session. We will need a close above the 32 degree resistance (daily low above freezing) to confirm an upward breakout, otherwise we are probably going back to retest the lows back in late February... Of course, temperatures charts do not behave like financial charts, but it is sometimes fun to apply financial charting analytics to meteorology. Ironically, the forecast has an upward breakout, but looks to get cold once again in two weeks. > NWS Watch/Warning Summary for 04 Mar 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 0 0 | 0 0 0 0 0 | 0 Fl Flood 0 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 No Warnings Issued -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Sat Mar 6 11:01:05 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Sat, 6 Mar 2010 11:01:05 -0600 Subject: IEM Daily Bulletin Message-ID: <201003061701.o26H15Qc020666@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 06 March 2010 > News +---------------------------------------------- | Title : Feb AWOS data uploaded | Date : 05 Mar 12:35 PM | Author: Daryl Herzmann | URL : http://mesonet.agron.iastate.edu/request/awos/1min.php +---------------------------------------------- The one minute interval Iowa AWOS data for February has been uploaded to the IEM. This information is kindly provided to us monthly by the Iowa Department of Transportation. The archive dates back to 1995! +---------------------------------------------- | Title : Feb ASOS data uploaded | Date : 05 Mar 12:22 PM | Author: Daryl Herzmann | URL : http://mesonet.agron.iastate.edu/request/asos/1min.phtml +---------------------------------------------- The one minute interval Iowa ASOS data for February 2010 has been uploaded to the IEM. Data for Omaha, Sioux Falls, and Moline is available as well. If anybody reading this wished I processed other ASOS sites in the country, feel free to drop us a line. > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-03-05 | Title : Engulfed in snow | Date : 05 Mar 06:14 AM | Votes : Good: 49 Bad: 7 +---------------------------------------------- Besides feeling the warm sunshine, a benefit of having clear skies during the daytime are the cool images satellites can take of our snow covered landscape. An Aqua MODIS satellite image from Thursday is featured showing the entire state covered in snow. The NASA website has images at a higher resolution where you can easily see cities and roads. Warmer weather and rain this weekend will eat away at this snow field with some flooding impacts expected early next week. > NWS Watch/Warning Summary for 05 Mar 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 0 0 | 0 0 0 0 0 | 0 Fl Flood 0 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 No Warnings Issued -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Sun Mar 7 11:01:05 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Sun, 7 Mar 2010 11:01:05 -0600 Subject: IEM Daily Bulletin Message-ID: <201003071701.o27H15Va028398@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 07 March 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 06 Mar 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 0 0 | 0 0 0 0 0 | 0 Fl Flood 0 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 No Warnings Issued -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Mon Mar 8 11:02:00 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Mon, 8 Mar 2010 11:02:00 -0600 Subject: IEM Daily Bulletin Message-ID: <201003081702.o28H20Es007833@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 08 March 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 07 Mar 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 6 0 | 0 0 0 0 0 | 0 Fl Flood 1 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: 5 Verified: 2 [40.0 %] Reduction of Size Versus County Based [87.6 %] Average Perimeter Ratio [0.0 %] Percentage of Warned Area Verified (15km) [12.5 %] Average Storm Based Warning Size [1909 sq km] Probability of Detection(higher is better)[0.88] False Alarm Ratio (lower is better) [0.60] Critical Success Index (higher is better) [0.38] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Tue Mar 9 11:01:06 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Tue, 9 Mar 2010 11:01:06 -0600 Subject: IEM Daily Bulletin Message-ID: <201003091701.o29H16nD015418@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 09 March 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-03-08 | Title : Flatlined with fog | Date : 08 Mar 06:11 AM | Votes : Good: 27 Bad: 6 +---------------------------------------------- For those of us stuck in the fog for the past day and a half, temperatures have not moved much. The featured trace for Ames shows all of a range of 6 degrees for temperatures since Saturday morning. Temperatures are expected to warm nicely into the 40s as a series of storm systems approaches the state this week. Heavy rainfall amounts are a possibility with flooding problems expected to begin as early as Tuesday. > NWS Watch/Warning Summary for 08 Mar 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 13 0 | 0 0 0 0 0 | 0 Fl Flood 1 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: 15 Verified: 5 [33.3 %] Reduction of Size Versus County Based [65.2 %] Average Perimeter Ratio [42.6 %] Percentage of Warned Area Verified (15km) [8.4 %] Average Storm Based Warning Size [1964 sq km] Probability of Detection(higher is better)[0.50] False Alarm Ratio (lower is better) [0.67] Critical Success Index (higher is better) [0.25] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Wed Mar 10 11:01:04 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Wed, 10 Mar 2010 11:01:04 -0600 Subject: IEM Daily Bulletin Message-ID: <201003101701.o2AH14hF027472@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 10 March 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-03-09 | Title : Visibility Frequencies | Date : 09 Mar 06:13 AM | Votes : Good: 24 Bad: 6 +---------------------------------------------- With a good portion of the state stuck in dense fog for the past few days, the featured chart looks at the hourly frequencies by month having observed visibilities below one mile for Des Moines. The largest values are shown during the morning hours in winter time and another maximum late summer just after sunrise. Overall frequencies are higher during the winter time due to the occurrence of visibility limiting snow fall. > NWS Watch/Warning Summary for 09 Mar 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 10 0 | 0 0 0 0 0 | 0 Fl Flood 0 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: 10 Verified: 3 [30.0 %] Reduction of Size Versus County Based [90.0 %] Average Perimeter Ratio [11.7 %] Percentage of Warned Area Verified (15km) [15.3 %] Average Storm Based Warning Size [1362 sq km] Probability of Detection(higher is better)[0.89] False Alarm Ratio (lower is better) [0.70] Critical Success Index (higher is better) [0.29] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Thu Mar 11 11:01:02 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Thu, 11 Mar 2010 11:01:02 -0600 Subject: IEM Daily Bulletin Message-ID: <201003111701.o2BH125c005664@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 11 March 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-03-10 | Title : Last Warning | Date : 10 Mar 05:12 AM | Votes : Good: 33 Bad: 5 +---------------------------------------------- For most of the state, it has been a while since either a Tornado or Severe Thunderstorm Warning has been issued as is shown by the featured map. Please note that the map displays the warnings by county or forecast zone for simplicity. Generally, it has been over 6 months since Iowa has seen severe weather. March is the beginning of Iowa's severe weather season and strong storms are expected to stay just south of the state today. > NWS Watch/Warning Summary for 10 Mar 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 28 0 | 0 0 0 0 0 | 5 Svr Tstorm 151 0 | 0 0 0 0 0 | 4 Fl Flood 7 1 | 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 No Warnings Issued -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Fri Mar 12 11:01:05 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Fri, 12 Mar 2010 11:01:05 -0600 Subject: IEM Daily Bulletin Message-ID: <201003121701.o2CH15aF031335@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 12 March 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-03-11 | Title : Squaw Creek Ice Jam | Date : 11 Mar 05:10 AM | Votes : Good: 36 Bad: 8 +---------------------------------------------- Our snowy and cold winter has turned into a foggy and rainy spring. This is resulting in scenes like the featured photo courtesy of Scott Lincoln. Minor flooding occurred yesterday as an ice jam caused water to quickly rise. Ice jams were also reported in other parts of the state. More of these events are expected as heavy rainfall arrives today and into this weekend. > NWS Watch/Warning Summary for 11 Mar 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 22 0 | 0 0 0 0 0 | 2 Svr Tstorm 31 0 | 0 0 0 0 0 | 1 Fl Flood 8 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: 52 Verified: 12 [23.1 %] Reduction of Size Versus County Based [62.1 %] Average Perimeter Ratio [26.3 %] Percentage of Warned Area Verified (15km) [6.7 %] Average Storm Based Warning Size [2183 sq km] Probability of Detection(higher is better)[0.77] False Alarm Ratio (lower is better) [0.77] Critical Success Index (higher is better) [0.22] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Sat Mar 13 11:01:07 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Sat, 13 Mar 2010 11:01:07 -0600 Subject: IEM Daily Bulletin Message-ID: <201003131701.o2DH172M018617@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 13 March 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-03-12 | Title : All wrapped up | Date : 12 Mar 06:11 AM | Votes : Good: 30 Bad: 8 +---------------------------------------------- A very large storm system has its center of rotation parked over the state on Thursday. The featured visible satellite image and 10m AGL wind barbs were valid at noon on Thursday and show the very pretty counter clockwise flow. The surface low pressure center is still over the state this morning, but is quickly dying to make way for the next storm system set to arrive. > NWS Watch/Warning Summary for 12 Mar 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 4 0 | 0 0 0 0 0 | 1 Svr Tstorm 75 0 | 0 0 0 0 0 | 2 Fl Flood 7 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: 79 Verified: 41 [51.9 %] Reduction of Size Versus County Based [62.2 %] Average Perimeter Ratio [38.5 %] Percentage of Warned Area Verified (15km) [22.6 %] Average Storm Based Warning Size [1567 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 Sun Mar 14 11:01:04 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Sun, 14 Mar 2010 11:01:04 -0500 Subject: IEM Daily Bulletin Message-ID: <201003141601.o2EG14ph003011@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 14 March 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 13 Mar 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 0 0 | 0 0 0 0 0 | 0 Fl Flood 6 1 | 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 No Warnings Issued -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Mon Mar 15 11:01:04 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Mon, 15 Mar 2010 11:01:04 -0500 Subject: IEM Daily Bulletin Message-ID: <201003151601.o2FG14S1011188@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 15 March 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 14 Mar 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 0 0 | 0 0 0 0 0 | 0 Fl Flood 1 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 No Warnings Issued -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Tue Mar 16 11:01:03 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Tue, 16 Mar 2010 11:01:03 -0500 Subject: IEM Daily Bulletin Message-ID: <201003161601.o2GG13uP018292@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 16 March 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-03-15 | Title : Northwest Iowa still waiting | Date : 15 Mar 05:10 AM | Votes : Good: 24 Bad: 8 +---------------------------------------------- The featured map displays the warmest temperature reported since the 2nd of December this winter and the northwest corner of the state is still waiting for the warm springlike temperatures to arrive. The snow pack was the deepest in this area and some of it still remains today. While Eastern Iowa was lucky enough to see the sun and 60 degrees on Sunday, the rest of the state experienced clouds with much cooler temperatures. The forecast for this week looks to continue the recent streak of warm and wet weather, much better than the alternative of a big snow storm and cold! > NWS Watch/Warning Summary for 15 Mar 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 0 0 | 0 0 0 0 0 | 0 Fl Flood 0 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 No Warnings Issued -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Wed Mar 17 11:01:13 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Wed, 17 Mar 2010 11:01:13 -0500 Subject: IEM Daily Bulletin Message-ID: <201003171601.o2HG1DBD012154@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 17 March 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 16 Mar 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 0 0 | 0 0 0 0 0 | 0 Fl Flood 3 2 | 0 0 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 No Warnings Issued -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Thu Mar 18 11:01:03 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Thu, 18 Mar 2010 11:01:03 -0500 Subject: IEM Daily Bulletin Message-ID: <201003181601.o2IG1339010824@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 18 March 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 17 Mar 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 0 0 | 0 0 0 0 0 | 0 Fl Flood 0 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 No Warnings Issued -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Fri Mar 19 11:01:04 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Fri, 19 Mar 2010 11:01:04 -0500 Subject: IEM Daily Bulletin Message-ID: <201003191601.o2JG14ko004642@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 19 March 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 18 Mar 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 0 0 | 0 0 0 0 0 | 0 Fl Flood 0 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 No Warnings Issued -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Sat Mar 20 11:01:04 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Sat, 20 Mar 2010 11:01:04 -0500 Subject: IEM Daily Bulletin Message-ID: <201003201601.o2KG14MG021237@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 20 March 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 19 Mar 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 2 0 | 0 0 0 0 0 | 0 Fl Flood 1 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: 2 Verified: 0 [0.0 %] Reduction of Size Versus County Based [79.7 %] Average Perimeter Ratio [19.7 %] Percentage of Warned Area Verified (15km) [0.0 %] Average Storm Based Warning Size [1157 sq km] Probability of Detection(higher is better)[0.00] False Alarm Ratio (lower is better) [1.00] Critical Success Index (higher is better) [0.00] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Sun Mar 21 11:01:05 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Sun, 21 Mar 2010 11:01:05 -0500 Subject: IEM Daily Bulletin Message-ID: <201003211601.o2LG15F4008086@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 21 March 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 20 Mar 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 6 0 | 0 0 0 0 0 | 0 Fl Flood 2 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: 6 Verified: 2 [33.3 %] Reduction of Size Versus County Based [56.6 %] Average Perimeter Ratio [30.8 %] Percentage of Warned Area Verified (15km) [10.8 %] Average Storm Based Warning Size [1900 sq km] Probability of Detection(higher is better)[0.50] False Alarm Ratio (lower is better) [0.67] Critical Success Index (higher is better) [0.25] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Mon Mar 22 11:01:03 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Mon, 22 Mar 2010 11:01:03 -0500 Subject: IEM Daily Bulletin Message-ID: <201003221601.o2MG130H029665@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 22 March 2010 > News +---------------------------------------------- | Title : November COOP data uploaded | Date : 22 Mar 08:35 AM | Author: Daryl Herzmann | URL : http://mesonet.agron.iastate.edu/climodat/ +----------------------------------------------

The quality controlled NWS COOP data for November 2009 has been uploaded to the IEM. Harry Hillaker, our State Climatologist who kindly provides this dataset, also passes along these notes for the month:

Iowa temperatures averaged 43.3 degrees or 7.7 degrees above normal while precipitation totaled 1.26 inches or 0.88 inches below normal. This ranks as the 6th warmest and 53rd driest November among 137 years of state records. The recent Novembers of 1999 and 2001 were warmer than this one. Donnellson recorded the month???s highest temperature with 77 degrees on the 8th. This was Iowa???s highest temperature since September 27. Sheldon reported the lowest temperature with 16 degrees on the 17th. This was the highest ???minimum??? of record for the state during November (old record of 14 degrees set in 2001). Snowfall averaged only a trace for the state. This is the fifth November to record only a trace for a statewide average. However, only in 1939 did snow occur in fewer locations than in 2009. November averaged just 1.5 degrees cooler than October, the smallest difference on record between these two months (typically November averages 15.3 degrees cooler than October).

The three fall months averaged 50.5 degrees or 0.7 degrees above normal with precipitation averaging 9.43 inches or 1.36 inches above normal. This ranks as the 63rd coolest and 30th wettest fall among 137 years of state records. Oddly enough the temperature and precipitation averages for this fall were both identical to what was recorded in the fall of 2008. However, that fall saw nearly normal temperatures and precipitation in all three months, in sharp contrast to the extremes seen in the fall of 2009.

The following is the number of new daily records set at COOP sites based on data back to 1951. 

                 __________2009_____________________________
                 NOV  OCT  SEP  AUG  JUL  JUN  MAY  APR  MAR
Maximum High:      2    0    0    0    0   25   15   46   84
Minimum High:      0  396    1  150  235   67   18   24   32
Maximum Low:      74    2    0   12    0   35    1    1   50
Minimum Low:       0   35   21  103  144    4   43    1    4
Maximum Precip:   45  161   25   65   58   41   51   76  122

The following is some bulk statistics on how well IEM's daily COOP data estimator is performing on a monthly basis versus this QC'd dataset. No code changes were made. 

                 _________________2009___________
                 NOV   OCT   SEP   AUG  JUL   JUN
High Temp Bias   0.9   0.8   0.9   0.3   0.7   0.5
High Temp RMSE   1.2   1.1   1.3   1.0   1.2   1.0
Low  Temp Bias   1.1   1.2   0.8   1.0   0.7   1.2
Low  Temp RMSE   1.6   1.6   1.7   1.6   1.3   1.6
Precip    Bias  -0.22 -1.10 -0.15 -0.71 -0.47 -0.36
Precip    RMSE   0.33  1.14  0.41  1.04  0.72  0.86
+---------------------------------------------- | Title : midwest mesoplot archive | Date : 22 Mar 07:35 AM | Author: Daryl Herzmann | URL : http://mesonet.agron.iastate.edu/timemachine/#4.0 +----------------------------------------------

The IEM continues to back fill our archives of environmental data as various sources of archived data become available. With the raw information, we can then regenerate images and products back into the past. For example, here is an image from the afternoon of the Jordan, Iowa F5 Tornado (13 June 1976).

The pressure analysis shown is very broad and smooth as the observational density is not what it is today.

These plots, generated back to the 1940s, are all available quickly from the IEM Time Machine application linked above. > Daily Feature No feature posted > NWS Watch/Warning Summary for 21 Mar 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 1 0 | 0 0 0 0 0 | 0 Fl Flood 2 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: 1 Verified: 1 [100.0 %] Reduction of Size Versus County Based [61.2 %] Average Perimeter Ratio [33.8 %] Percentage of Warned Area Verified (15km) [51.9 %] Average Storm Based Warning Size [1196 sq km] Probability of Detection(higher is better)[0.29] False Alarm Ratio (lower is better) [0.00] Critical Success Index (higher is better) [0.29] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Tue Mar 23 11:01:06 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Tue, 23 Mar 2010 11:01:06 -0500 Subject: IEM Daily Bulletin Message-ID: <201003231601.o2NG16Au000434@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 23 March 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-03-22 | Title : Quick melt | Date : 22 Mar 05:05 AM | Votes : Good: 32 Bad: 9 +---------------------------------------------- Longer days and ever increasing solar angle give snow very little chance of surviving this time of year. The featured satellite image is from different times on Sunday showing the decrease in snow coverage in Southwestern Iowa. More melting will occur today with springlike weather expected for the week. > NWS Watch/Warning Summary for 22 Mar 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 16 0 | 0 0 0 0 0 | 0 Fl Flood 8 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: 16 Verified: 7 [43.8 %] Reduction of Size Versus County Based [65.7 %] Average Perimeter Ratio [44.1 %] Percentage of Warned Area Verified (15km) [26.1 %] Average Storm Based Warning Size [678 sq km] Probability of Detection(higher is better)[0.65] False Alarm Ratio (lower is better) [0.56] Critical Success Index (higher is better) [0.35] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Wed Mar 24 11:01:04 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Wed, 24 Mar 2010 11:01:04 -0500 Subject: IEM Daily Bulletin Message-ID: <201003241601.o2OG14XB009464@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 24 March 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-03-23 | Title : Warmer lows than highs | Date : 23 Mar 05:08 AM | Votes : Good: 31 Bad: 6 +---------------------------------------------- The featured chart shows the number of days per month during the past year that the high or low temperature was above the average for the day. Every month, except last April, is shown having more days above average for low temperature than high temperature. The cool weather we experienced last July sticks out prominently as well. Temperatures today will be above average for both high and low with more pleasant weather expected for the rest of the week. > NWS Watch/Warning Summary for 23 Mar 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 0 0 | 0 0 0 0 0 | 0 Fl Flood 0 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 No Warnings Issued -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Thu Mar 25 11:02:01 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Thu, 25 Mar 2010 11:02:01 -0500 Subject: IEM Daily Bulletin Message-ID: <201003251602.o2PG21gv008198@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 25 March 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-03-24 | Title : Slow start for severe weather | Date : 24 Mar 05:09 AM | Votes : Good: 27 Bad: 4 +---------------------------------------------- The featured chart displays the total number of tornado and severe thunderstorm warnings issued by the NWS for counties in Iowa. The top half of the graph shows the yearly totals up until 23 March and the bottom half displays the total for the year. 2010 has yet to see a warning issued in the state, but as other previous years show, a slow start does not mean the severe weather season will be a quiet one. The largest total on the chart for 2008 was after only having 4 warnings issued for the first part of the year. > NWS Watch/Warning Summary for 24 Mar 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 8 0 | 0 0 0 0 0 | 1 Fl Flood 1 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: 8 Verified: 0 [0.0 %] Reduction of Size Versus County Based [61.1 %] Average Perimeter Ratio [54.8 %] Percentage of Warned Area Verified (15km) [0.0 %] Average Storm Based Warning Size [2217 sq km] Probability of Detection(higher is better)[0.00] False Alarm Ratio (lower is better) [1.00] Critical Success Index (higher is better) [0.00] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Fri Mar 26 11:02:01 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Fri, 26 Mar 2010 11:02:01 -0500 Subject: IEM Daily Bulletin Message-ID: <201003261602.o2QG21A1001047@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 26 March 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-03-25 | Title : Lack of wind | Date : 25 Mar 05:09 AM | Votes : Good: 23 Bad: 8 +---------------------------------------------- If March has seemed a bit too quiet to you, it is probably because of the general lack of windy conditions that we often remember with March. The featured chart displays the average wind speed for March by year at the Des Moines Airport. Only 1994 is shown with a lower average speed than 2010 since 1970. The red line displays the climatological average of 11.6 miles per hour. Some stronger winds are expected today and tomorrow as a storm system passes by. > NWS Watch/Warning Summary for 25 Mar 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 10 0 | 0 0 0 0 0 | 0 Svr Tstorm 23 0 | 0 0 0 0 0 | 1 Fl Flood 11 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: 32 Verified: 11 [34.4 %] Reduction of Size Versus County Based [61.3 %] Average Perimeter Ratio [25.7 %] Percentage of Warned Area Verified (15km) [19.9 %] Average Storm Based Warning Size [2112 sq km] Probability of Detection(higher is better)[0.78] False Alarm Ratio (lower is better) [0.66] Critical Success Index (higher is better) [0.31] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Sat Mar 27 11:01:03 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Sat, 27 Mar 2010 11:01:03 -0500 Subject: IEM Daily Bulletin Message-ID: <201003271601.o2RG13TA000672@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 27 March 2010 > News +---------------------------------------------- | Title : NWS Warnings back to 1986 | Date : 26 Mar 07:26 PM | Author: Daryl Herzmann | URL : http://mesonet.agron.iastate.edu/request/gis/watchwarn.phtml +----------------------------------------------

I have to preface this post by saying that this is one of the most exciting news items I have ever posted since starting the IEM back in 2001. The National Weather Service kindly provided a database format archive of their high end warnings dating back to 1986! This database back fills the IEM's archive dating back to 2002. This database includes Tornado, Severe Thunderstorm, Special Marine, and Flash Flood warnings. So, there is plenty to discuss here regarding this dataset.

  • The NWS provided archive is by no means complete and may contain some errors. The archive of products prior to the mid 1990s contains a bunch of hand editing and input of products. At this point, it is the most complete record that I know of.
  • On 12 Nov 2005, the NWS implemented VTEC for keeping track of their warnings. For years prior to 2005, I have created my own VTEC IDs based on timing and areal logic to try to replicate the current day system. For warnings in 2005 prior to 12 November, no back dating has been done at this time. I'm still working on what exactly to do for this case.
  • IEM's current database of these older warnings (prior 2002) does not also contain the corresponding issuance text. I have the raw data files on disk, but have yet to write code to successfully sync the text to the databased warnings.
  • Storm Based Warnings became operational in 2007, but these polygon warnings were included in the warning text back to roughly the beginning of 2002. The IEM provides these polygons, but keep in mind the official warnings at the time were the county based ones.

So, you may wonder, why do this? This image is why! (it is from 1998!)

We can now construct imagery that was previously nearly impossible to come by. The IEM now has back filled:

There are a number of places on the IEM where you view this information:

The shapefile download application also contains pre-generated yearly shapefiles, some of them are rather huge in size! The current year's shapefile is also pre-generated, once per day. Of course, at any time, you can dynamically request a period of data. Previously, it was very difficult to get a long period of data from the download application.

Whew! There are still some loose ends to clean up, but if nothing else, I have a new source of IEM Daily Features, like these two:

Enjoy! > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-03-26 | Title : The first and the last | Date : 26 Mar 05:10 AM | Votes : Good: 59 Bad: 13 +---------------------------------------------- On Wednesday, a chart featured the slow start to the severe weather season in Iowa. Today's featured chart displays the period between the first and last Severe T'storm and Tornado Warning issued in Iowa. The year of 2008 really sticks out with period shown being nearly the entire year. The latest first warning was on 15 April of 2003, so we should see our first warning this year within the next few weeks. > NWS Watch/Warning Summary for 26 Mar 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 0 0 | 0 0 0 0 0 | 0 Fl Flood 0 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 No Warnings Issued -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Sun Mar 28 11:01:06 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Sun, 28 Mar 2010 11:01:06 -0500 Subject: IEM Daily Bulletin Message-ID: <201003281601.o2SG16VI022703@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 28 March 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 27 Mar 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 32 0 | 0 0 0 0 0 | 1 Fl Flood 0 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: 32 Verified: 9 [28.1 %] Reduction of Size Versus County Based [72.5 %] Average Perimeter Ratio [21.3 %] Percentage of Warned Area Verified (15km) [8.7 %] Average Storm Based Warning Size [2020 sq km] Probability of Detection(higher is better)[0.93] False Alarm Ratio (lower is better) [0.72] Critical Success Index (higher is better) [0.28] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Mon Mar 29 11:01:07 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Mon, 29 Mar 2010 11:01:07 -0500 Subject: IEM Daily Bulletin Message-ID: <201003291601.o2TG17P6021228@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 29 March 2010 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 28 Mar 2010 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 43 0 | 0 0 0 0 0 | 3 Svr Tstorm 63 0 | 0 0 0 0 0 | 0 Fl Flood 7 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: 105 Verified: 26 [24.8 %] Reduction of Size Versus County Based [65.3 %] Average Perimeter Ratio [43.5 %] Percentage of Warned Area Verified (15km) [19.7 %] Average Storm Based Warning Size [1165 sq km] Probability of Detection(higher is better)[0.86] False Alarm Ratio (lower is better) [0.75] Critical Success Index (higher is better) [0.24] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Tue Mar 30 11:01:04 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Tue, 30 Mar 2010 11:01:04 -0500 Subject: IEM Daily Bulletin Message-ID: <201003301601.o2UG14D6002451@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 30 March 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-03-29 | Title : Upsidedown looking plot | Date : 29 Mar 05:07 AM | Votes : Good: 22 Bad: 8 +---------------------------------------------- The featured plot displays the percentile value of the warmest temperature reported so far this year versus previous years for the period up to 29 March. While some places in northwestern Iowa have yet to see 60+ degrees, the most abnormally coldest temperatures have been in southwestern Iowa. The highest percentiles (warmest compared with local climatology) are in northeastern Iowa. The forecast for this week will rearrange this plot with much of the state in the 70s! Hello springtime! > NWS Watch/Warning Summary for 29 Mar 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 5 0 | 0 0 0 0 0 | 0 Fl Flood 1 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: 13 Verified: 2 [15.4 %] Reduction of Size Versus County Based [86.6 %] Average Perimeter Ratio [3.7 %] Percentage of Warned Area Verified (15km) [3.9 %] Average Storm Based Warning Size [898 sq km] Probability of Detection(higher is better)[1.00] False Alarm Ratio (lower is better) [0.85] Critical Success Index (higher is better) [0.15] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Wed Mar 31 11:01:03 2010 From: akrherz at iastate.edu (daryl herzmann) Date: Wed, 31 Mar 2010 11:01:03 -0500 Subject: IEM Daily Bulletin Message-ID: <201003311601.o2VG13su011400@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 31 March 2010 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2010-03-30 | Title : Been a while for 70s | Date : 30 Mar 05:08 AM | Votes : Good: 31 Bad: 5 +---------------------------------------------- The featured IEM analysis depicts the number of days since 70+ degrees were observed. For many locations in the midwest, it has been over 120 days! For many, this streak will end today or surely tomorrow as the warmest push of air so far this year arrives. Temperatures may even push 80 degrees later in the week. > NWS Watch/Warning Summary for 30 Mar 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 0 0 | 0 0 0 0 0 | 0 Fl Flood 1 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 No Warnings Issued -------------- next part -------------- An HTML attachment was scrubbed... URL: