The National Weather Service in Great Falls has issued a Winter Storm Warning for elevations above 7000 feet for heavy snow... which is NOW in effect to 4 am MST Friday. A Winter Weather Advisory remains in effect from 5 am Wednesday to 4 am MST Friday for elevations below 7000 feet.

Snow accumulations: total snow accumulations of 4 to 7 inches at
lower elevations but 7 to 15 inches in the mountains are likely.

* Winds and visibility: expect southwest winds 15 to 25 mph at
times. Visibilities will be below one-half mile at times due to
snow and blowing snow mainly in the mountains.

* Other impacts: expect roads to become snow covered and icy...
creating hazardous travel conditions.

* Locations affected include: Battle Ridge Pass... Bozeman...
Bozeman Pass... Targhee Pass... West Yellowstone... Big Hole
Pass... Chief Joseph Pass... Dillon... Monida Pass... Ennis...
Norris Hill... Raynolds Pass... Twin Bridges

Precautionary/preparedness actions...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities... and use caution while
driving.

For specific Road and travel conditions in Montana... dial 5 1 1.