Winter Weather Advisory

* WHAT...For the Winter Weather Advisory, wet snow. Total snow accumulations up to two inches. Winds gusting as high as 40 mph. For the Winter Storm Warning, heavy, wet snow expected. Total snow accumulations between 4 and 8 inches.

* WHERE...Gallatin Valley.

* WHEN...For the Winter Weather Advisory, until 6 PM MDT Sunday. For the Winter Storm Warning, from 6 PM Sunday to 9 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. The hazardous conditions will impact the Monday morning commute.

* 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.