The Iowa Environmental Mesonet (IEM) collects environmental data from cooperating members with observing networks. The data are stored and made available on this website.
'24-'25 Winter Storm #18
Posted: 20 Mar 2025 07:16 AM, Views: 799
Tags: winter2425
As with a number of recent Wednesdays, a major winter storm impacted the state. This storm system also featured a number of hail producing storms Wednesday morning with even a couple of instances of having a Severe Thunderstorm Warning coincident with a Blizzard Warning (more on that tomorrow). The featured map presents an analysis of snowfall reports with a few isolated reports of around twelve inches! Thunder-snow was also observed with this event, which weather forecasting lore implies a foot of snow will fall somewhere nearby. Winds were again very extreme with this storm with gusts exceeding 60 MPH for some locations. Mid March sunshine and warmer temperatures will start the melting work today.
Previous Years' Features
CoCoRaHS Update
Posted: 29 Jan 10:29 AM
13-16 Jan Network Issue [resolved]
Posted: 15 Jan 10:13 AM
Alaska Marine Warnings
Posted: 8 Jan 9:28 AM
Wagering on ASOS Temperatures
Posted: 4 Dec 10:39 AM
25 Sep Website Issues [resolved]
Posted: 25 Sep 8:04 AM
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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.
Current Data
The IEM combines data from participating networks into products like maps shown above and web applications to analyze the data.
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