Winter Storm Watch:
- ...Winter Storm Watch in effect from Saturday evening through Sunday evening... The National Weather Service in Great Falls has issued a Winter Storm Watch...which is in effect from Saturday evening through Sunday evening.
- Timing and main impact: a strong Fall storm system will affect much of north-central and southwest Montana with periods of rain and snow...heavy at times...Saturday evening through Sunday evening. Rain falling at lower elevations Saturday night is likely to change to snow at all elevations early Sunday morning. The timing of this change from rain to snow will determine lower elevation snow accumulation.
- Snow accumulations: mountain areas above 5500 feet have the potential for 5 to 10 inches of storm total snowfall...with isolated amounts over one foot. Locations below 5500 feet could have 1 to 4 inches of snow...depending on the timing at which rain changes to snow. Snowfall amounts greater than 4 inches could occur over portions of the north-Central Plains if rain changes to snow earlier Saturday night.
- Winds and visibility: north winds of 10 to 20 mph are possible at lower elevations...while 20 to 30 mph winds are possible in the mountains. Heavy wet snow could reduce visibility to less than one-half mile at times.
- Other impacts: travel may become difficult while snow accumulates over area passes. Bridges may become snow covered and icy at all elevations. Heavy wet snow could cause isolated power outages. Young livestock may be at risk of exposure to hypothermia.
- Locations affected include: Choteau...Chester... White Sulphur Springs...Bozeman...West Yellowstone...Stanford...Boulder Hill...Elk Park Pass...Whitehall...Fort Benton... Browning... Marias Pass...Havre...Cut Bank...Townsend...Great Falls...Kings Hill Pass...Big Hole Pass...Dillon...Monida Pass...Helena... MacDonald Pass...Rogers Pass...Norris Hill...Raynolds Pass.
- To see a graphical representation of this hazard please visit our web Page and click on the detailed hazards tab. Precautionary/preparedness actions... A Winter Storm Watch means there is a potential for significant snow...sleet...or ice accumulations that may impact travel. Continue to monitor the latest forecasts.