Heavy mountain snow and valley inversions end the week after a winter storm

Weather conditions remain unsettled today, with rain and snow forecast. Lows will drop into the 10s at night with daytime highs in the 30s. There may be slick spots in the valleys tonight and early Wednesday.

The region experiences drier and sunny skies on Wednesday due to high pressure. Warming potential will be limited by valley inversions by the end of the week. Inversion-affected locations will likely experience daytime highs in the 30s and 40s. As long as the inversion threat is absent, Bozeman will experience highs in the upper 40s and low 50s.

East Glacier Park, Saint Mary, Babb, Logan Pass, Rogers Pass, Marias Pass, and Kiowa until 8 AM Tuesday. Snow accumulations may range from 2 to 5 inches below 5,000 feet to 5 to 14 inches above 5,000 feet. A gusty wind of up to 80 mph is predicted.

Place until 5 PM Tuesday for communities near Clark Fork, Clearwater Mountains, Little Belt, and Highwood Mountains. Snowfall is expected at elevations higher than 4,000 feet.

Snow accumulations of six to twelve inches are expected, but you might see as much as 18 inches on higher ground. Winds gusting as high as 45 mph will cause blowing and drifting snow to reduce visibility.

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Effect for the West Glacier Region through 11 PM Tuesday. Snowfall is expected to be heavy above 4,000 feet. Snow accumulations of 6 to 12 inches are expected to be common, but higher terrain could see 18 inches. Blowing and drifting snow, combined with wind gusts as high as 45 mph, will reduce visibility.

Missoula, Bitterroot, and Flathead Valleys until 11 AM Tuesday. Snow accumulations of 1 to 2 inches, with isolated amounts nearing 4 inches. Brief moderate to heavy snow bands may cause low visibility and icy conditions. The wind can gust up to 40 miles per hour.

This is in effect through 11 AM Tuesday for the Potomac/Seeley Lake areas. Generally three to six inches of snow, with some accumulations of up to ten inches. It is windy with gusts up to 40 mph.

Effect until 5 PM Tuesday in the Bitterroot and Sapphire mountains. The amount of snow expected is 3 to 6 inches. Higher amounts of 6 to 10 inches are not ruled out.

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This is in effect for the Butte/Blackfoot Region between 5 PM Monday and 11 AM Tuesday. One to three inches of snow, with isolated amounts exceeding six inches. Heavy snow is possible during snow squalls, resulting in low visibility and icy conditions. A 45 mph wind gust is possible.

Effect until 5 PM Tuesday for the Kootenai/Cabinet Region. An accumulation of 3 to 6 inches of snow, with isolated accumulations of up to 10 inches.

Gallatin, Madison, and Centennial counties until 5 a.m. Wednesday. Snow accumulations between 2 and 9 inches. As high as 45 mph winds are forecast.

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Big Belt, Bridger, and Castle Mountains until 5 AM Wednesday. Snow accumulations between 2 and 6 inches below 7000 feet.

Northwest Beaverhead County until 11 PM Tuesday. Snow accumulations between 2 and 9 inches. High winds gusting to 45 mph.

East Glacier Park, Saint Mary, Babb, Logan Pass, Rogers Pass, Marias Pass, and Kiowa from 8 AM to 11 PM on Tuesday. Tuesday will see an additional two to four inches of snowfall. Winds gusting 60 mph.

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