From akrherz at iastate.edu Sun Jan 1 11:00:04 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Sun, 1 Jan 2012 11:00:04 -0600 Subject: IEM Daily Bulletin Message-ID: <201201011700.q01H0488030053@despam-13.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 01 January 2012 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 31 Dec 2011 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 Jan 2 11:00:08 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Mon, 2 Jan 2012 11:00:08 -0600 Subject: IEM Daily Bulletin Message-ID: <201201021700.q02H08Xv005176@despam-13.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 02 January 2012 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-01 | Title : 2011: Plenty of Severe Weather | Date : 01 Jan 02:14 PM | Votes : Good: 9 Bad: 2 +---------------------------------------------- With the new calendar year, it is probably a good time to reflect back on 2011. The previous year will be remembered as an infamous year for deadly tornadoes in the US. The featured chart presents the yearly total of NWS issued severe thunderstorm and tornado warnings dating back to 1986 along with the total area covered by these warnings. The area value is expressed in normalized units of the size of the continental United States. For example, enough warnings were issued this past year to cover the CONUS seven times over. The total number of warnings came in slightly behind 2008. The large drop in areal coverage of warnings is due to the change to storm based warnings in 2008, which warns for only partial areas of counties. > NWS Watch/Warning Summary for 01 Jan 2012 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 Jan 3 11:00:05 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Tue, 3 Jan 2012 11:00:05 -0600 Subject: IEM Daily Bulletin Message-ID: <201201031700.q03H05Gi022605@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 03 January 2012 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-02 | Title : 2011: Drier than past years | Date : 02 Jan 11:07 AM | Votes : Good: 19 Bad: 0 +---------------------------------------------- Continuing along in the series of features reviewing the past year, we consider the precipitation departure from average for the year. Most of the state saw below average precipitation, which goes against a recent trend of having very wet years. Most of northwest Iowa is now analyzed in a severe drought condition with some concerns of limited soil moisture recharge before next spring. > NWS Watch/Warning Summary for 02 Jan 2012 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 Jan 4 11:00:02 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Wed, 4 Jan 2012 11:00:02 -0600 Subject: IEM Daily Bulletin Message-ID: <201201041700.q04H02FB003207@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 04 January 2012 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-03 | Title : Hawkeye Cauci | Date : 03 Jan 03:34 PM | Votes : Good: 7 Bad: 7 +---------------------------------------------- The weather looks to be good for the Iowa Presidential Caucus this evening with dry conditions and temperatures just above freezing forecasted. The featured chart presents air temperatures reported around 7 PM at Des Moines for past caucus dates. > NWS Watch/Warning Summary for 03 Jan 2012 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 Jan 5 11:00:02 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Thu, 5 Jan 2012 11:00:02 -0600 Subject: IEM Daily Bulletin Message-ID: <201201051700.q05H025L014886@despam-12.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 05 January 2012 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-04 | Title : 2011 by month | Date : 04 Jan 01:14 PM | Votes : Good: 14 Bad: 3 +---------------------------------------------- Continuing to look back on 2011, we look today at the monthly temperature and precipitation percentiles. The right most bars display the percentile value for the entire year. For comparison, the Ames value is compared with the statewide areal average. The highlights of the year include a warm July and December along with a cold and dry September. > NWS Watch/Warning Summary for 04 Jan 2012 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 Jan 6 11:00:03 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Fri, 6 Jan 2012 11:00:03 -0600 Subject: IEM Daily Bulletin Message-ID: <201201061700.q06H032E021474@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 06 January 2012 > News +---------------------------------------------- | Title : Dec ASOS Data Uploaded | Date : 05 Jan 11:40 AM | Author: Daryl Herzmann | URL : http://mesonet.agron.iastate.edu/request/asos/1min.phtml +----------------------------------------------

The one minute interval Iowa ASOS data for December 2011 has been uploaded to the IEM. This dataset also includes Moline, Sioux Falls, and Omaha. It is made available on a monthly basis by the National Climatic Data Center, but in a very difficult and mostly undocumented format to use. > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-05 | Title : Epic January Warmth | Date : 05 Jan 04:21 PM | Votes : Good: 17 Bad: 1 +---------------------------------------------- Wow! The first question after a day like today is how bad the weather will get later this winter to pay for this. Record high temperatures were set over most of Iowa today as shown by the featured analysis computed by the IEM. The NW quarter of the state has seen high temperatures best the previous record by over 10 degrees in spots! Tomorrow will continue the warmth, but not this warm with highs back in the 40s and 50s (still well above average). > NWS Watch/Warning Summary for 05 Jan 2012 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 Jan 7 11:00:02 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Sat, 7 Jan 2012 11:00:02 -0600 Subject: IEM Daily Bulletin Message-ID: <201201071700.q07H02Gv011334@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 07 January 2012 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 06 Jan 2012 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 Jan 8 11:00:03 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Sun, 8 Jan 2012 11:00:03 -0600 Subject: IEM Daily Bulletin Message-ID: <201201081700.q08H02oY026587@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 08 January 2012 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 07 Jan 2012 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 Jan 9 11:00:05 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Mon, 9 Jan 2012 11:00:05 -0600 Subject: IEM Daily Bulletin Message-ID: <201201091700.q09H056V031020@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 09 January 2012 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 08 Jan 2012 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 | 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: 8 Verified: 4 [50.0 %] Reduction of Size Versus County Based [68.8 %] Average Perimeter Ratio [3.9 %] Percentage of Warned Area Verified (15km) [28.8 %] Average Storm Based Warning Size [743 sq km] Probability of Detection(higher is better)[0.89] False Alarm Ratio (lower is better) [0.50] Critical Success Index (higher is better) [0.47] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Tue Jan 10 11:00:16 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Tue, 10 Jan 2012 11:00:16 -0600 Subject: IEM Daily Bulletin Message-ID: <201201101700.q0AH0GdO019823@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 10 January 2012 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-09 | Title : Warm start to Winter | Date : 09 Jan 05:48 AM | Votes : Good: 15 Bad: 5 +---------------------------------------------- The meteorological winter season (1 Dec - 28 Feb) has started off being one of the warmer ones on record. Does a warm start to date of winter mean a colder end? The featured chart compares the average temperature for winter before and after 8 January. From this analyis, 2012 is the fifth warmest statewide since 1893. There is plenty of spread in the chart, so it is hard to say how bad the rest of our winter will be. The next week looks to be mostly on the warm side with a brief bout of near average temperatures. > NWS Watch/Warning Summary for 09 Jan 2012 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 11 0 | 0 0 0 0 0 | 0 Svr Tstorm 12 0 | 0 0 0 0 0 | 0 Fl Flood 5 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: 23 Verified: 7 [30.4 %] Reduction of Size Versus County Based [80.6 %] Average Perimeter Ratio [1.0 %] Percentage of Warned Area Verified (15km) [15.5 %] Average Storm Based Warning Size [1348 sq km] Probability of Detection(higher is better)[0.92] False Alarm Ratio (lower is better) [0.70] Critical Success Index (higher is better) [0.30] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Wed Jan 11 11:00:04 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Wed, 11 Jan 2012 11:00:04 -0600 Subject: IEM Daily Bulletin Message-ID: <201201111700.q0BH04RY025981@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 11 January 2012 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-10 | Title : Missing the cold of winter | Date : 10 Jan 05:44 AM | Votes : Good: 37 Bad: 2 +---------------------------------------------- The big story this winter continues to be the warmth and lack of snow. Even our coldest temperature reading so far this winter season is at record levels for most of the state as shown by the featured map. The featured map presents the percentile value for this winter season's minimum temperature compared against the same period for previous winters. Values of 100% would indicate that this winter has seen the warmest minimum temperature for the season so far. High temperatures today are expected to reach near daily record levels again! > NWS Watch/Warning Summary for 10 Jan 2012 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: 1 [50.0 %] Reduction of Size Versus County Based [79.4 %] Average Perimeter Ratio [5.9 %] Percentage of Warned Area Verified (15km) [28.5 %] Average Storm Based Warning Size [1233 sq km] Probability of Detection(higher is better)[0.50] False Alarm Ratio (lower is better) [0.50] Critical Success Index (higher is better) [0.33] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Thu Jan 12 11:00:04 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Thu, 12 Jan 2012 11:00:04 -0600 Subject: IEM Daily Bulletin Message-ID: <201201121700.q0CH04Ru023744@despam-12.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 12 January 2012 > News +---------------------------------------------- | Title : OpenLayers TMS Example | Date : 12 Jan 10:11 AM | Author: Daryl Herzmann | URL : http://mesonet.agron.iastate.edu/ogc/openlayers_example.html +----------------------------------------------

The IEM provides various OGC web services that aim to be easily usable in commonly used web-based GIS systems. I have added a fully contained example of using OpenLayers to access the IEM's Tile Map Service (TMS) of composite NEXRAD and satellite imagery. Hopefully folks find it useful. > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-11 | Title : Not much cold to speak of | Date : 11 Jan 05:50 AM | Votes : Good: 28 Bad: 3 +---------------------------------------------- After yet another very warm day for January, the featured chart presents another metric showing how warm this winter has been so far. This time the number of hours with a wind chill reading below 0 Fahrenheit for Des Moines is presenting showing this year's total only slightly ahead of 1954 and 2002 since 1933. The situation is about to change with colder air arriving and windy conditions for the next few days. The extended forecast does look to be warmer again next week. > NWS Watch/Warning Summary for 11 Jan 2012 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 2 0 | 0 0 0 0 0 | 0 Svr Tstorm 4 0 | 0 0 0 0 0 | 0 Fl Flood 3 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: 1 [16.7 %] Reduction of Size Versus County Based [70.7 %] Average Perimeter Ratio [13.3 %] Percentage of Warned Area Verified (15km) [20.2 %] Average Storm Based Warning Size [1417 sq km] Probability of Detection(higher is better)[0.50] False Alarm Ratio (lower is better) [0.83] Critical Success Index (higher is better) [0.14] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Fri Jan 13 11:00:03 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Fri, 13 Jan 2012 11:00:03 -0600 Subject: IEM Daily Bulletin Message-ID: <201201131700.q0DH03Wk006709@despam-12.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 13 January 2012 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-12 | Title : Records highs then snow | Date : 12 Jan 05:49 AM | Votes : Good: 33 Bad: 6 +---------------------------------------------- Our remarkable stretch of warm January weather came to an abrupt end on Wednesday thanks to a very strong cold front plowing through the state bringing some snow along with it. The high temperatures, before the front passed through, hit record levels over portions of eastern Iowa and with snow falling today, creates the unique situation of having a record high temperature followed by snow the next day. The featured chart presents an IEM computed analysis of the most recent occurrence of having snowfall on the day after a record high temperature for some long term sites in the state. There are caveats galore with this data due to issues with snowfall data quality and the nature of daily climate observation times being at 7 AM (long story). Heavier snowfall totals are expected over eastern Iowa, so the bottom portion of the chart presents the most recent occurrence where the snowfall was four inches or more. In general, these events are rare and getting heavy snowfall is even more rare. Note: the record high temperature was computed up until that date since the beginning of the record. > NWS Watch/Warning Summary for 12 Jan 2012 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 Jan 14 11:00:02 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Sat, 14 Jan 2012 11:00:02 -0600 Subject: IEM Daily Bulletin Message-ID: <201201141700.q0EH02Uj010173@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 14 January 2012 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-13 | Title : '11-'12 Winter Storm #5 | Date : 13 Jan 08:04 AM | Votes : Good: 16 Bad: 4 +---------------------------------------------- It has been a while since our last winter storm, but winter has returned dumping the heaviest snowfall totals over eastern Iowa as shown by the featured map. The western half of Iowa missed out as the storm system rapidly intensified while its center was east of the state. There was plenty of wind with this storm system as well making for travel difficulties. > NWS Watch/Warning Summary for 13 Jan 2012 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 Jan 15 11:00:03 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Sun, 15 Jan 2012 11:00:03 -0600 Subject: IEM Daily Bulletin Message-ID: <201201151700.q0FH03J5009298@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 15 January 2012 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 14 Jan 2012 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 Jan 16 11:00:03 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Mon, 16 Jan 2012 11:00:03 -0600 Subject: IEM Daily Bulletin Message-ID: <201201161700.q0GH03Bf013637@despam-12.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 16 January 2012 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 15 Jan 2012 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 Jan 17 11:00:05 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Tue, 17 Jan 2012 11:00:05 -0600 Subject: IEM Daily Bulletin Message-ID: <201201171700.q0HH050C030188@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 17 January 2012 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-16 | Title : Snow and no snow | Date : 16 Jan 05:48 AM | Votes : Good: 25 Bad: 5 +---------------------------------------------- The high temperature you experienced on Sunday in Iowa was very dependent on the amount of snow you received from our storm last week. Warm air surged into the state, but thanks to snow cover over eastern Iowa temperatures were much cooler than the mid 50s over western Iowa. This contrast is nicely shown by overlaying high temperatures on Sunday to visible imagery showing areas with and without snow. The forecast for this week looks to be active with another warm up expected next weekend. > NWS Watch/Warning Summary for 16 Jan 2012 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 4 0 | 0 0 0 0 0 | 1 Svr Tstorm 2 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 [78.6 %] Average Perimeter Ratio [0.0 %] Percentage of Warned Area Verified (15km) [35.1 %] Average Storm Based Warning Size [650 sq km] Probability of Detection(higher is better)[0.33] 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 Jan 18 11:00:56 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Wed, 18 Jan 2012 11:00:56 -0600 Subject: IEM Daily Bulletin Message-ID: <201201181700.q0IH0u5h019318@despam-12.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 18 January 2012 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-17 | Title : Plenty of 50s | Date : 17 Jan 05:48 AM | Votes : Good: 26 Bad: 2 +---------------------------------------------- This past Sunday was the fifth day this January that the high temperature has hit or exceeded 50 degrees for Ames. This feat is rather remarkable considering that we did not surpass 50 in each of the past five years and this total prior to 17 January ties the previous most back in 1928. Will this year end up like 1928 and not have any days over 50 for the rest of the month? The forecast does have a slim chance of hitting 50 again next Sunday after a series of winter storms this week. > NWS Watch/Warning Summary for 17 Jan 2012 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 30 0 | 0 0 0 0 0 | 0 Svr Tstorm 105 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: 135 Verified: 58 [43.0 %] Reduction of Size Versus County Based [62.2 %] Average Perimeter Ratio [22.1 %] Percentage of Warned Area Verified (15km) [24.5 %] Average Storm Based Warning Size [1581 sq km] Probability of Detection(higher is better)[0.81] False Alarm Ratio (lower is better) [0.57] Critical Success Index (higher is better) [0.39] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Thu Jan 19 11:00:02 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Thu, 19 Jan 2012 11:00:02 -0600 Subject: IEM Daily Bulletin Message-ID: <201201191700.q0JH02Xa007152@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 19 January 2012 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-18 | Title : '11-'12 Winter Storm #6 | Date : 18 Jan 07:32 AM | Votes : Good: 31 Bad: 5 +---------------------------------------------- After a respite from winter, we have had two snow storms in the past week. The most recent storm brought a lot of wind and snowfall totals mostly less than four inches to parts of the state. We have yet to see a massive winter storm hit the state this winter, but the long range forecast models are teasing a big storm for next week. Until then, there are more chances of snow as our weather pattern remains active. > NWS Watch/Warning Summary for 18 Jan 2012 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 Jan 20 11:00:02 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Fri, 20 Jan 2012 11:00:02 -0600 Subject: IEM Daily Bulletin Message-ID: <201201201700.q0KH02HK010681@despam-12.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 20 January 2012 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-19 | Title : Been warm up north too | Date : 19 Jan 05:39 AM | Votes : Good: 17 Bad: 2 +---------------------------------------------- The featured chart presents the minimum temperature each winter for Minneapolis up until 18 January. If Minneapolis would have stayed above zero Fahrenheit on Wednesday, it would have been the latest date into the winter they have gone without a sub zero temperature. A strong cold front plowing through late last night and dropped the temperature to -1 just before midnight! "Missed it by that much!" Anyway, full blown winter has returned and today's weather certainly makes it feel like what the calendar indicates: the middle of winter! > NWS Watch/Warning Summary for 19 Jan 2012 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 Jan 21 11:00:04 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Sat, 21 Jan 2012 11:00:04 -0600 Subject: IEM Daily Bulletin Message-ID: <201201211700.q0LH04Jk029686@despam-12.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 21 January 2012 > News +---------------------------------------------- | Title : Service Disruption | Date : 21 Jan 01:59 AM | Author: Daryl Herzmann | URL : http://mesonet.agron.iastate.edu/ +----------------------------------------------

Some IEM services were unavailable between about 12:40 and 1:50 AM this morning (21 Jan) due to a data storage failure. I am slowing getting things repaired, so please let me know if you see problems. Sorry about the outage. > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-20 | Title : Warm winter so far | Date : 20 Jan 05:55 AM | Votes : Good: 16 Bad: 4 +---------------------------------------------- The featured chart presents the percentage of days this winter (since 1 Dec) has been warmer than previous winters. Each day this winter is compared with the same day of the year for previous winters. The bars shown in blue are years with more days colder that winter than this one. So we have another plot showing how warm this winter has been so far, but our weather pattern has changed and normal winter has returned to Iowa. Snow will fall today and there is more snow in the forecast! > NWS Watch/Warning Summary for 20 Jan 2012 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 0 0 | 0 0 0 0 0 | 1 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 Jan 22 11:00:27 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Sun, 22 Jan 2012 11:00:27 -0600 Subject: IEM Daily Bulletin Message-ID: <201201221700.q0MH0RC9023047@despam-12.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 22 January 2012 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-21 | Title : '11-'12 Winter Storm #7 | Date : 21 Jan 08:39 AM | Votes : Good: 6 Bad: 1 +---------------------------------------------- Our most recent winter storm is now in the books with folks in northern Iowa being the lucky ones picking up around 5-8 inches of light and fluffy snow. This storm caused major problems east of us in Chicago as it hit during rush hour on Friday causing most of the city's thoroughfares to become parking lots. Our next winter storm arrives tonight with a better chance of freezing rain and snow on Sunday. > NWS Watch/Warning Summary for 21 Jan 2012 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 13 0 | 0 0 0 0 0 | 1 Svr Tstorm 56 0 | 0 0 0 0 0 | 0 Fl Flood 3 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: 69 Verified: 25 [36.2 %] Reduction of Size Versus County Based [55.1 %] Average Perimeter Ratio [16.9 %] Percentage of Warned Area Verified (15km) [18.1 %] Average Storm Based Warning Size [1347 sq km] Probability of Detection(higher is better)[0.84] False Alarm Ratio (lower is better) [0.64] Critical Success Index (higher is better) [0.34] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Mon Jan 23 11:00:34 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Mon, 23 Jan 2012 11:00:34 -0600 Subject: IEM Daily Bulletin Message-ID: <201201231700.q0NH0Y1X004689@despam-12.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 23 January 2012 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 22 Jan 2012 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 30 0 | 0 0 0 0 0 | 3 Svr Tstorm 89 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: 108 Verified: 43 [39.8 %] Reduction of Size Versus County Based [67.7 %] Average Perimeter Ratio [23.4 %] Percentage of Warned Area Verified (15km) [16.5 %] Average Storm Based Warning Size [1770 sq km] Probability of Detection(higher is better)[0.79] 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 Jan 24 11:00:32 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Tue, 24 Jan 2012 11:00:32 -0600 Subject: IEM Daily Bulletin Message-ID: <201201241700.q0OH0WkF003230@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 24 January 2012 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-23 | Title : 2,500th Daily Feature | Date : 23 Jan 08:05 AM | Votes : Good: 30 Bad: 5 +---------------------------------------------- I started posting IEM Daily Feature's back in early 2002 as a means to get people to visit the website daily and also highlight plots that show interesting weather and climate data. Today's feature is the 2,500th one in the series, so the presented plot looks at the time of day this feature message is posted each day. The plot illustrates the process of aging for human males with activities starting earlier in the morning with the passing years. If the trend continues, I'll be posting daily features at 3 AM in the year 2022! Hehe. > NWS Watch/Warning Summary for 23 Jan 2012 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 34 0 | 0 0 0 0 0 | 2 Svr Tstorm 56 0 | 0 0 0 0 0 | 2 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: 90 Verified: 22 [24.4 %] Reduction of Size Versus County Based [62.4 %] Average Perimeter Ratio [24.0 %] Percentage of Warned Area Verified (15km) [12.8 %] Average Storm Based Warning Size [1717 sq km] Probability of Detection(higher is better)[0.59] False Alarm Ratio (lower is better) [0.76] Critical Success Index (higher is better) [0.21] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Wed Jan 25 11:00:06 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Wed, 25 Jan 2012 11:00:06 -0600 Subject: IEM Daily Bulletin Message-ID: <201201251700.q0PH069i009554@despam-11.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 25 January 2012 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-24 | Title : '11-'12 Winter Storm #8 | Date : 24 Jan 09:00 AM | Votes : Good: 9 Bad: 1 +---------------------------------------------- The storm system that unfortunately brought deadly tornadoes to the southern US also produced rain, sleet, and snow for Iowa. The featured analysis presents reported snowfall totals, which did not amount to much but created very difficult travel conditions. Our recent stretch of an active winter looks to be settling down some with temperatures back above freezing. > NWS Watch/Warning Summary for 24 Jan 2012 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 1 0 | 0 0 0 0 0 | 1 Svr Tstorm 8 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: 7 Verified: 2 [28.6 %] Reduction of Size Versus County Based [89.6 %] Average Perimeter Ratio [28.5 %] Percentage of Warned Area Verified (15km) [16.9 %] Average Storm Based Warning Size [721 sq km] Probability of Detection(higher is better)[0.50] False Alarm Ratio (lower is better) [0.71] Critical Success Index (higher is better) [0.22] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Thu Jan 26 11:00:29 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Thu, 26 Jan 2012 11:00:29 -0600 Subject: IEM Daily Bulletin Message-ID: <201201261700.q0QH0Tvt004657@despam-12.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 26 January 2012 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-25 | Title : Just a taste of winter | Date : 25 Jan 05:49 AM | Votes : Good: 15 Bad: 0 +---------------------------------------------- Our typical full fledged winter of the past few years has been no where to be found this year. The featured chart presents a time series of hourly air temperature reports along with the daily climatological range. Our coldest period of the year on average is now behind us and the lengthening days start to remind us that spring is not that far away. The near term forecast does not have much winter in store with daily chances of melting snow rather than falling snow. > NWS Watch/Warning Summary for 25 Jan 2012 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 32 0 | 0 0 0 0 0 | 3 Svr Tstorm 40 0 | 0 0 0 0 0 | 0 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: 72 Verified: 17 [23.6 %] Reduction of Size Versus County Based [58.8 %] Average Perimeter Ratio [5.2 %] Percentage of Warned Area Verified (15km) [8.8 %] Average Storm Based Warning Size [3399 sq km] Probability of Detection(higher is better)[0.75] False Alarm Ratio (lower is better) [0.76] Critical Success Index (higher is better) [0.22] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Fri Jan 27 11:00:13 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Fri, 27 Jan 2012 11:00:13 -0600 Subject: IEM Daily Bulletin Message-ID: <201201271700.q0RH0DCI014335@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 27 January 2012 > News +---------------------------------------------- | Title : April COOP Data Uploaded | Date : 26 Jan 01:11 PM | Author: Daryl Herzmann | URL : http://mesonet.agron.iastate.edu/climodat/ +----------------------------------------------

The quality controlled Iowa COOP data for April 2011 has been uploaded to the IEM. These observations are kindly provided by Harry Hillaker, our state climatologist, who passes along these notes on the month:

Iowa temperatures averaged 47.2 degrees or 1.7 degrees below normal while precipitation totaled 3.89 inches or 0.38 inch more than normal. This ranks as the 41st coolest and 31st wettest April among 139 years of records. This was Iowa's fifth consecutive cooler than normal month and seventh consecutive wetter than normal April. The first two weeks of the month were very mild with temperatures averaging 6.5 degrees above normal with temperatures reaching into the upper eighties on the 3rd, 9th and 10th. However, the final 16 days of the month all averaged cooler than usual with temperatures exceeding 70 degrees only on the last three days of the month. The most noteworthy event of the month was the tornado outbreak on the evening of the 9th when the NWS reported 20 tornadoes in Iowa with four reaching EF-3 strength or greater. The first of the tornadoes caused the most damage when it struck Mapleton. Snowfall averaged 1.1 inches or 0.5 inch less than normal. This brought the 2010-2011 season total to 41.4 inches or 9.2 inches more than normal. This ranked as the 20th snowiest season among 124 years of record and was the fifth consecutive snowier than usual season.

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

                 2011_____________________2010 _____________
                 APR  MAR  FEB  JAN  DEC  NOV  OCT  SEP  AUG
Maximum High:    127   15   35    2    2   34   60   11   10
Minimum High:    126    2   75    4   17    0    4   43    6
Maximum Low:      22   15   11    0    0   19    1   20   53
Minimum Low:       5    0   18   13    1    9    1    1    2
Maximum Precip:   51   25   54   42   34   55    4  106  103

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. 

                 2011_____________________2010_______________
                 APR   MAR   FEB   JAN   DEC   NOV   OCT   SEP
High Temp Bias   0.9   0.7   0.9   1.0   1.2   0.0   0.1   0.5
High Temp RMSE   1.3   1.3   1.4   1.3   1.5   0.9   1.1   1.2
Low  Temp Bias   1.8   2.4   1.9   1.7   1.5   1.2   0.7   0.7
Low  Temp RMSE   2.1   2.6   2.2   2.0   1.8   1.8   2.0   1.5
Precip    Bias  -0.74 -0.25 -0.75 -0.54 -0.52 -0.42 -0.05 -1.22
Precip    RMSE   0.83  0.44  0.77  0.61  0.58  0.49  0.25  1.34
> Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-26 | Title : Severe Weather Returns | Date : 26 Jan 05:58 AM | Votes : Good: 17 Bad: 4 +---------------------------------------------- After a devastating year of damaging severe weather, 2012 is starting off active with the number of warnings issued second to only 2008 since 2002. More severe weather is possible today over the southeast US. > NWS Watch/Warning Summary for 26 Jan 2012 Summary +_________ By WFO ____________+ Watches Type US IA | ARX DVN DMX OAX FSD | US Tornado 9 0 | 0 0 0 0 0 | 3 Svr Tstorm 18 0 | 0 0 0 0 0 | 0 Fl Flood 5 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: 27 Verified: 4 [14.8 %] Reduction of Size Versus County Based [60.0 %] Average Perimeter Ratio [2.2 %] Percentage of Warned Area Verified (15km) [7.5 %] Average Storm Based Warning Size [1327 sq km] Probability of Detection(higher is better)[0.73] False Alarm Ratio (lower is better) [0.85] Critical Success Index (higher is better) [0.14] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Sat Jan 28 11:00:12 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Sat, 28 Jan 2012 11:00:12 -0600 Subject: IEM Daily Bulletin Message-ID: <201201281700.q0SH0C61008013@despam-12.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 28 January 2012 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-27 | Title : Yet to see zero | Date : 27 Jan 05:56 AM | Votes : Good: 15 Bad: 2 +---------------------------------------------- Minneapolis was featured last week for tying the latest date into the winter season it has gone before hitting a zero degree or lower temperature. The featured image looks at the minimum temperature to date for Des Moines. This year is with a handful of others to not see a sub zero temperature by this date. The warmest minimum temperature for the entire winter was zero for 1930-1931, so there is a chance we could best that mark this year. There is plenty of winter to go yet. > NWS Watch/Warning Summary for 27 Jan 2012 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: 1 [33.3 %] Reduction of Size Versus County Based [36.1 %] Average Perimeter Ratio [2.4 %] Percentage of Warned Area Verified (15km) [13.4 %] Average Storm Based Warning Size [4359 sq km] Probability of Detection(higher is better)[0.43] False Alarm Ratio (lower is better) [0.67] Critical Success Index (higher is better) [0.23] -------------- next part -------------- An HTML attachment was scrubbed... URL: From akrherz at iastate.edu Sun Jan 29 11:00:06 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Sun, 29 Jan 2012 11:00:06 -0600 Subject: IEM Daily Bulletin Message-ID: <201201291700.q0TH069q001123@despam-12.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 29 January 2012 > News +---------------------------------------------- | Title : More GIS Radar Imagery | Date : 28 Jan 01:29 PM | Author: Daryl Herzmann | URL : http://mesonet.agron.iastate.edu/GIS/ridge.phtml +----------------------------------------------

Since 2003, the IEM has been providing compos ites of National Weather Service RADAR imagery for use within GIS systems. While these composites are nice, they are often ugly at very small scales (due to the crude nature of the compositing process). These images are also of base reflectivity and not of non- compositable products like velocity.

So the next logical step is to try and provide single site imagery for GIS systems. The page linked from this news item contains more information on this new service along with some JSON metadata services.

The archive of this imagery is only a week old at this time, backfilling will hopefully occur going forward, but will take a good deal of time due to storage and processing requirements. The hope is to initially backfill some high impact events (tornados and hurricanes for example).

The goal is to provide high resolution current and archived RADAR imagery into plotting and GIS systems. This should make things a bit easier for researchers to generate plots with RADAR information included in them. As always, comments and suggestions are certainly welcome.

This information is provided without warranty or promise of future availability. Please do not write a high traffic web application against this service! If our systems or internets melt, too bad! > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-28 | Title : '11-'12 Winter Storm #9 | Date : 28 Jan 09:48 AM | Votes : Good: 5 Bad: 3 +---------------------------------------------- These little snow storms may not be worth the time to document, but they do add to the winter snowfall totals and winter storm counts so might as well! The featured analysis of snowfall reports from our most recent snow generator show amounts mostly at or below an inch. Most of this snow will not stick around long with above freezing temperatures expected this weekend. Some more light snowfall totals are expected this evening across northern Iowa. > NWS Watch/Warning Summary for 28 Jan 2012 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 Jan 30 11:00:22 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Mon, 30 Jan 2012 11:00:22 -0600 Subject: IEM Daily Bulletin Message-ID: <201201301700.q0UH0MsF014484@despam-10.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 30 January 2012 > News No news is good news > Daily Feature No feature posted > NWS Watch/Warning Summary for 29 Jan 2012 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 Jan 31 11:00:02 2012 From: akrherz at iastate.edu (daryl herzmann) Date: Tue, 31 Jan 2012 11:00:02 -0600 Subject: IEM Daily Bulletin Message-ID: <201201311700.q0VH02oL004721@despam-12.iastate.edu> Iowa Environmental Mesonet Daily Bulletin for 31 January 2012 > News No news is good news > Daily Feature +---------------------------------------------- http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2012-01-30 | Title : Lack of frozen days | Date : 30 Jan 05:54 AM | Votes : Good: 20 Bad: 3 +---------------------------------------------- The featured map presents an IEM analysis of the departure of days below freezing (daily high temperature below freezing) this winter has seen versus previous. Much of the Midwest is shown in the 10 to 25 days below average. The most extreme departures show up in Minnesota and North Dakota. The warm winter continues this week with forecasted temperatures approaching record warm levels today. > NWS Watch/Warning Summary for 30 Jan 2012 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: