Lewis and Clark

Winter Storm Watch:

Issued at: 2:20 PM MDT on October 31, 2014, expires at: 11:00 PM MST on November 02, 2014
  • ...Winter Storm Watch remains in effect from Saturday evening through Sunday evening... A Winter Storm Watch remains 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. Livestock may be at risk of exposure to hypothermia.
  • Locations affected include: Fairfield...Choteau...Chester... White Sulphur Springs...Battle Ridge Pass...Bozeman... Bozeman Pass...Targhee Pass...West Yellowstone...Stanford... Conrad... Boulder...Boulder Hill...Elk Park Pass... Homestake pass... Whitehall...Shelby...Big Sandy... Fort Benton... Browning... Marias Pass...Havre...Cut Bank... Townsend... Great Falls... Kings Hill Pass...Big Hole Pass... Chief Joseph Pass...Dillon... Monida Pass...Flesher Pass... Helena...Lincoln...MacDonald Pass...Rogers Pass...Ennis... Norris Hill...Raynolds Pass... Twin Bridges
  • 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.

First Alert 48 Hour Forecast

WINTER STORM WATCH late Saturday through Sunday for most all passes across western Montana and lower elevations including Butte, Anaconda, Seeley Lake and Georgetown Lake.  Snowfall of 4 to 14 inches in the mountains and 1 to 4 inches in the lower elevations.  Missoula, Bozeman and Kalispell are not under the watch, but rain may change to snow by Sunday morning.

Very mild and breezy weather is expected Halloween evening with partly cloudy skies.  The pleasant weather will last through early Saturday, then some major changes will occur across western Montana.

A major winter like storm will bring rain and snow to the region this weekend.  Rain and snow will develop by late Saturday afternoon and spread across the region Saturday night.  As colder air invades Montana, the rain will change to snow at the lower elevations.  Besides snow in the mountains and some lower elevations, rainfall preceding the snow will be widespread, with some areas receiving a quarter to almost an inch of rain.

Highs Saturday in the upper 40s in Kalispell, the 50s in Missoula and Butte to the 60s in Bozeman.  Colder area wide Saturday night and Sunday.  Lows in the upper 20s and 30s with highs in the upper 30s to lower 40s.

mark heyka Watch Chief Meteorologist Mark Heyka weeknights on the NEWS AT 5, 6 and 10. More Details

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First Alert Meteorologists

mark heyka

Mark Heyka

Mark Heyka received a B.A. in broadcast journalism from Washburn University in Topeka, Kansas.

brooke foster

Brooke Foster

Brooke Foster joined the NBC Montana team in March of 2006.

Matt Gray

Matt Gray

Matt joined the NBC Montana weather team in July 2013 after graduating with a Bachelor of Science in meteorology.


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