The Iowa Environmental Mesonet (IEM) collects environmental data from cooperating members with observing networks. The data are stored and made available on this website.
Early Red Flag Warning
Posted: 29 Jan 2025 05:30 AM, Views: 235
NWS Sioux Falls issued a Red Flag Warning on Tuesday that covered a portion of NW Iowa. For Iowa, this was the first such warning issued during the month of January on record, but the archive only goes back 10 to 15 years. That caveat aside, it is still remarkable to see fire weather conditions materialize for the state during the middle of winter! The featured chart presents the period each year between the first and last such warning, with another caveat that not all Iowa serving NWS Offices have been issuing this warning type since 2006. Only 2022 has a comparably early instance with most years getting started during March.
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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