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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

On December 30, 2021 the devastating Marshall Fire roared through Superior and portions of Louisville, Colorado. The fire started south of Boulder, Colorado, and was fanned by intense winds along the Front Range Foothills.

Wind gusts from 70 to 100 mph occurred right at the base of the foothills, including Boulder and along Highway 93 south toward Golden.  The strong winds fanned a grass fire which originated near the small town of Marshall, and quickly spread east to Superior and Louisville.  At last count, 1,084 homes and seven commercial structures were destroyed, and 149 homes and another 30 commercial structures were damaged by the Marshall Fire.

Image of Marshall Fire from Broomfield, CO
Marshall Fire from Broomfield CO 6 pm MST 12/30/2021

Credit: NOAA/NWS Boulder

 

Video of Marshall Fire

Video of Marshall Fire from NWS Boulder at approximately 11:55 am MST 12/30/2021. Credit: NOAA/NWS Boulder

 

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