Arctic front howling through Montana
WINTER STORM WARNING through Thursday evening for Glacier Park south to Swan Lake. Snowfall of 8 to 15 inches. The warning also includes Broadwater and Jefferson Counties of southwest Montana, including Boulder and Townsend. Snowfall of 2 to 4 inches with isolated amounts up to 9 inches.
WINTER WEATHER ADVISORY for western Montana, including the Missoula, Mission, Bitterroot and Flathead Valleys. An advisory also covers southwest Montana, including the Butte and Bozeman areas. Snowfall of 2 to 4 inches in Bozeman, 1 to 3 inches in Butte and Kalispell and a trace up to 2 inches in Missoula. Locally higher amounts are possible.
An arctic cold front will interact with Pacific moisture and bring snow to western Montana. In advance of the front, rain developing and then changing to snow with the passage of the front. Strong winds will accompany the front, with some gusts up to 35 and 45 mph. Snow will continue Friday, mainly along and south of I-90 from Missoula to the Butte and Bozeman areas.
Lows will drop to the 10s in Butte, Bozeman and Kalispell and lower 20s in Misssoula. Highs Friday in the 20s. Dry and cold this weekend. Highs in the 20s to lower 30s Saturday and the upper 20s to lower 30s Sunday.
Storm systems will bring a chance of snow Monday and again Wednesday of next week. Highs in the upper 20s to mid 30s.
NORTHWEST MONTANA: Arctic air is currently moving through the Flathead Valley. Winds will gust up to 35 mph. Snow developing overnight and ending early tomorrow morning.
WEST-CENTRAL MONTANA: Arctic air should move into the Missoula area after 11 pm Thursday. Rain will change to snow Thursday evening and continue Friday. The hellgate winds in downtown Missoula will gust up to 45 mph.
SOUTHWEST MONTANA: Arctic air will arrive Thursday evening in the Bozeman and Butte areas. Winds will gust to 30 mph with rain changing to snow. Accumulations are likely.