National Weather Service United States Department of Commerce


An area of strong low pressure took shape across the Central Plains Wednesday, April 10th, eventually tracking through Minnesota by the morning of April 12th. That system spread heavy snow across many areas later Wednesday, with precipitation changing to a wintry mix of snow, sleet, freezing rain, and just plain rain by Wednesday night into Thursday. Many thunderstorms were also common as Gulf of Mexico moisture spread north into the area, with many areas also seeing a rare phenomenon of "dirty snow" as dust from west Texas was absorbed into this system and deposited with the snow and sleet in our area.

Significant snow accumulation of 4 to 10 inches was common for areas closer to and north of Interstate 90, with more of a wintry mess farther south, while mainly rain occurred over much of northeast Iowa into far southwest Wisconsin.

In addition to the precipitation, very strong easterly winds of 25 to 35 mph, gusting over 60 mph, brought down numerous trees and power lines, particularly for areas which saw ice accumulation. Travel was quite difficult for many locations, with some road closures due to both slick conditions as well as downed trees and power lines.

radar loop
Radar loop of the April 10-11 storm.
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