Winter Storm Watch

* WHAT...Heavy snow possible. Total snow accumulations between 6 and 12 inches along the Big Belt Mountains and between 6 and 12 inches above 7000 feet in the mountains of Madison and Gallatin counties. Winds could gust as high as 45 mph.

* WHERE...Big Belt, Bridger and Castle Mountains and Gallatin and Madison County Mountains and Centennial Mountains.

* WHEN...From Saturday evening through late Sunday night.

* IMPACTS...Travel could be very difficult, especially over mountain passes. Back country conditions may be very dangerous. Wet snow and gusty winds may down trees limbs and power lines.