Winter Weather Advisory

* WHAT...Snow expected. Total snow accumulations between 3 and 5 inches. Winds gusting as high as 45 mph.

* WHERE...Helena Valley.

* WHEN...From 6 PM Saturday to 6 AM MDT Monday.

* IMPACTS...Travel could be 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.