* WHAT...Heavy, wet snow. Additional snow accumulations between 4 and 6 inches.
* WHERE...Big Belt, Bridger and Castle Mountains.
* WHEN...Until 6 AM MDT Monday.
* IMPACTS...Travel could be very difficult. Gusty winds combined with the wet and heavy nature of the snow could bring down tree branches. Isolated power outages are possible.
* ADDITIONAL DETAILS...Snowfall amounts will vary drastically from grassy surfaces to roadways, most notably at lower elevations, with accumulations on non-grassy surfaces being confined mainly to between the evening through late morning hours.