The Iowa Environmental Mesonet (IEM) collects environmental data from cooperating members with observing networks. The data are stored and made available on this website.
Watches Touching Iowa
Posted: 19 Sep 2024 05:30 AM, Views: 682
Tags: spc watch
The Storm Prediction Center (SPC) has a slight risk of severe storms over Iowa today as it finally appears that organized precipitation will happen this month! It would seem that a severe thunderstorm or tornado watch will be possible for portions of northern Iowa sometime this afternoon, so it is a good time to check in on a watch issuance metric! The featured chart presents the number of SPC issued watches for the year to date period, those whose watch polygon box overlap Iowa, and the percentage between the two. It is interesting to see how the 2024 total for Iowa is the highest since 2011, but almost every year prior to 2011 was higher than 2024. A caveat is that watch methodologies have changed somewhat over the years and this plot is using the unofficial, but still a close approximation, polygons instead of counties. It is still interesting to see that roughly 10% of all watches touch the state in some manner.
Rate Feature
Previous Years' Features
2022: Warmest Day of September
2021: Summer High Departures
2019: GDD Percentiles
2017: 85+ in September
2013: Needed Rainfall
2012: Improving chances
2010: Noisy Nights
2007: Increased variability
2006: Flirting with frost
2005: Warm Air Returns
2004: A dry Sunday
2002: September Rain
Tipton I-80 North View, IA Webcam:
Most Popular (List Apps)
24 July Potential Partial Outage [resolved]
Posted: 23 Jul 8:53 AM
4 July METAR Data Outage [resolved]
Posted: 4 Jul 8:17 AM
24 Jun NWS Data Outage [resolved]
Posted: 24 Jun 8:56 PM
New KCRG CityCam: Springville
Posted: 11 Jun 7:15 AM
5 June NWS Data Outage [resolved]
Posted: 5 Jun 2:20 PM
Sign up for the Daily Bulletin
Current Website Performance:
Bandwidth: 25.3 MB/s
Total Website: 1,972 req/s
API/Data Services: 29.4 req/s
API Success: 100%
Soil Temperatures
Data from the Iowa State Soil Moisture Network is found on this website and daily soil temperature averages are used to produce the highlighted analysis.