SEVERE THUNDERSTORM WATCH until 10 pm for Broadwater, Jefferson and Lewis and Clark Counties, including Townsend, Boulder and Helena. 

A cold front is moving into central Montana.  It will spawn a few strong storms across central Montana as far southwest as the Bozeman area.  Behind the front, a large storm system is spinning counterclockwise near Boise.  It will creep northeast into western Montana by Thursday, then into northwest Montana on Friday.  Rotating around it will be spokes of moisture and energy.  Each one will bring showers and drizzle to the region.  The most widespread rain will be over northwest Montana where one to two inches are possible with the least amounts over southwest parts of the state.  Outside of the rain, skies will be partly to mostly cloudy.

When the storm is directly over the region, snow levels will lower to pass levels.  One to two inches of snow are possible tonight and Thursday at Logan, Marias, Lolo, Lookout and Lost Trail Passes.  West Yellowstone may see a few snow showers later tonight.

Temperatures will be cool, with lows in the upper 30s in Butte to the 40s elsewhere.  Highs in the 50s and 60s.
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