The Iowa Environmental Mesonet (IEM) collects environmental data from cooperating members with observing networks. The data are stored and made available on this website.

IEM Daily Feature

Chance of 4+ Inches

Posted: 22 Mar 2018 05:35 AM, Views: 308
Tags:   wpc  
The featured map is forecast probabilities of at least four inches of snow falling over the next 72 hours from the Weather Prediction Center (a part of NWS/NOAA). This will be from a big storm system arriving on Friday and set to bring a lot of moisture into the state. The question remains as to where the rain to snow transition will be and the featured map depicts a forecast location of north and northeastern Iowa. Other parts of the state are expected to receive significant amounts of rain.
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Previous Years' Features
2011: Hail time
Rathbun Lake, IA Webcam:
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RADAR Products

The IEM processes National Weather Service NEXRAD information in real-time to produce and archive many products. This includes a generated composite produced every five minutes dating back to 1995!

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Besides point observations of precipitation, the IEM also processes gridded rainfall products made available by NOAA. This information is archived and made available in GIS ready formats.

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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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