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Heavy Rain and Flash Flooding Threat in Montana; Severe Thunderstorms in the Middle Missouri Valley

A low pressure system will bring heavy to excessive rainfall and high winds across Montana this afternoon. Heavy rainfall totals may lead to scattered flash flooding concerns. A line of showers and strong to severe thunderstorms will move into the mid Missouri Valley region this afternoon producing severe winds and isolated large hail with stronger storms. Read More >

  Overview

April 2, 2018 - A potent early spring storm system ushered in strong wind across much of western and central Wyoming on Monday.  Heavy snow developed across much of northern Wyoming behind a cold front.  6" to 10" of snow fell from Cody to Meeteetse closing State Highway 120 Monday evening.  Snow and strong wind also closed Interstates 25 and 90 across Johnson County along with U.S. Highway 16 over Powder River Pass.  Winter Storm Warnings remained in effect until 6 am Tuesday for eastern Johnson County. 

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Preliminary Snowfall Totals for April 2, 2018 (as of 8 am Tuesday)
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Interstate 90 north of Buffalo
early Monday evening
8.5" of new snow measured in Cody at 9 PM, Monday Around a foot of new snow covering the deck at Sleeping Giant Ski area near Pahaska early Monday evening.
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