IEM Daily Feature
Wednesday, 07 March 2007

Snow gradient

Posted: 07 Mar 2007 07:07 AM

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NWS COOP snowfall report
The most recent snow storm put down an impressive gradient of snowfall with 50-60 miles seperating the heavy and light amounts. The featured image is an analysis of reported snowfall depth. You can see Northern Iowa with 15+ inches and just a short distance southeast of there with less than an inch. These large gradients can become important later this spring with differential soil moisture producing airmass boundaries in the atmosphere that can influence storm strength.

Good = 25
Bad = 5