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Weather Alert Day: A quick-hitting winter storm moves with heavy, blowing snow is resulting in major travel impacts.
by Mitchel Coombs
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Today is a Weather Alert Day as a quick-hitting winter storm moves through southwest Montana with heavy snow. Blowing snow is resulting in major travel impacts.
Our latest winter storm continues to bring major impacts along and south of I-90 in southwest Montana. The good news, this storm is beginning to exit the region from west to east. Winter Weather Advisories remain in effect for much of southwest Montana through 5 p.m. this afternoon. West of the divide, conditions have rapidly improved, though a few light showers continue.
Daytime highs in the 10s and 20s will be common with overnight lows falling into the single digits above and below zero. Wet roads may refreeze as a result tonight.
Saturday afternoon through Sunday morning, a weak disturbance will move through the area, bringing another chance for light snowfall.
Most areas will see less than one inch, but folks in the Seeley-Swan Valley and West Glacier Region may see up to 2 inches of accumulation. The snow will keep road conditions slick.
Our next push of Arctic air arrives Sunday night into Monday. We could see coldest overnight temperatures yet this season, Tuesday and Wednesday mornings. Lows well below zero are possible, especially along and east of the divide.
Waves of light to moderate snow showers may continue through this period as well.
WINTER STORM WARNING is in effect until 9 PM for Absaroka/Beartooth Mountains-Crazy Mountains, including Cooke City. Heavy snow occurring. Additional snow accumulations up to 5 inches. Winds gusting as high as 45 mph.
WINTER WEATHER ADVISORY is in effect until 5 PM for Butte/Blackfoot Region. Snow expected. Additional snow accumulations up to one inch. Wet roads may refreeze after sunset.
WINTER WEATHER ADVISORY is in effect until 4 PM Friday for Northern Clearwater Mountains and Lower Clark Fork Region. Snow expected. Additional snow accumulations up to one inch.
WINTER WEATHER ADVISORY is in effect until 5 PM for Upper Blackfoot and MacDonald Pass, Big Belt, Bridger and Castle Mountains-Elkhorn and Boulder Mountains-Northwest Beaverhead County-Gallatin and Madison County Mountains and Centennial Mountains- Including the following locations: Elk Park Pass, Maudlow, Targhee Pass, Homestake Pass, MacDonald Pass, Montana City, Wise River, Big Hole Pass, Corbin, Boulder, Flesher Pass, Lincoln, Chief Joseph Pass, Big Sky, Clancy, Trident, Bozeman Pass, West Yellowstone, Raynolds Pass, Dewey, and Wisdom. Snow. Additional snow accumulations up to one inch.
WINTER WEATHER ADVISORY is in effect until 11 PM for Canyon Ferry Area, Missouri Headwaters, Madison River Valley, Gallatin Valley, Beaverhead and Western Madison below 6,000ft, Ruby Mountains and Southern Beaverhead Mountains, including the following locations: Gallatin Gateway, McAllister, Norris, Bannack, Bozeman, Willow Creek, Jeffers, Townsend, Dillon, Waterloo, Harrison, Ennis, Toston, Cameron, Three Forks, Whitehall, Pony, Monida Pass, Winston, and Glen. Snow. Additional snow accumulations up to one inch.
FLOOD WARNING is in effect until 8:45 AM Sunday along the Madison River near Ennis due to an ice jam. Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Depending on ice behavior, any release of the ice jam could result in sudden rises of water, leading to a rapid flooding situation.
