Lewis and Clark

Winter Weather Advisory:

Issued at: 4:40 am MST on March 2, 2015, expires at: 5:00 AM MST on March 03, 2015
  • ...Winter Weather Advisory remains in effect from 11 am this morning to 5 am MST Tuesday... A Winter Weather Advisory for snow and blowing snow remains in effect from 11 am this morning to 5 am MST Tuesday.
  • Timing and main impact: snow will develop late Monday morning or early Monday afternoon and continue through Monday evening... diminishing by Tuesday morning. A period of gusty north winds with blowing and drifting snow is expected Monday afternoon and evening.
  • Snow accumulations: 2 to 4 inches with 4 to 8 inches in the mountains.
  • Winds and visibility: a period of gusty north winds at 20 to 30 mph with gusts to 40 mph is likely Monday afternoon and evening with blowing and drifting snow reducing visibility to less than one half mile at times.
  • Temperature and wind chill: temperatures will fall into the single digits above and below zero Monday night. The combination of cold temperatures and windy conditions will create wind chill values of 15 below zero to 25 below zero Monday night through Tuesday morning.
  • Locations affected include: Fairfield...Choteau...Stanford... Lewistown...Lewistown Divide...Big Sandy...Fort Benton... Great Falls...Kings Hill Pass...Flesher Pass...Helena... Lincoln...MacDonald Pass...Rogers Pass.
  • To see a graphical representation of this hazard please visit our web Page and click on the detailed hazards tab.
  • To see a graphical representation of the degree of stress on Young livestock please visit our web Page and click on the c a N l link on the left. Precautionary/preparedness actions... A Winter Weather Advisory for snow and blowing snow means that visibilities will be limited due to a combination of falling and blowing snow. Use caution when traveling...especially in open areas. For specific Road and travel conditions in Montana...dial 5 1 1.

First Alert 48 Hour Forecast

A WINTER WEATHER ADVISORY and WINTER STORM WARNING are posted through Tuesday morning for accumulating snow and slippery roads for all of NBC Montana, including Missoula, Bozeman, Butte and Kalispell. Generally, expect 2 to 4 inches of snow accumulation in the valleys with 4 to 8 inches at the passes.

The snow will slowly push south with the front and should pass over the Flathead Valley by early Monday afternoon. Behind the front, winds will increase and send wind chill values into the teens during the afternoon hours in the Flathead with similar effects expected elsewhere later in the day. By late Monday afternoon and evening, Missoula and Butte should see snow and wind with Bozeman and far southwest Montana seeing it by early evening. Highs will top out in the upper 20s to lower 30s ahead for the front, but quickly drop back into the teens after the front moves through.  The best chance of snow will occur from 3 pm Monday through 9 am Tuesday.

Snow showers will quickly end Tuesday morning. However, the chill of winter will remain. Highs in the 10s in Bozeman and Butte to the 20s in Missoula and Kalispell.  Lows Wednesday morning will drop well below zero in Bozeman and Butte to the single digits above zero in Missoula and Kalispell.

A nice warming trend will occur the latter half of the week and weekend.  With sunshine, highs will warm to the 40s by Thursday and Friday and the 40s to around 50 by the weekend.

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


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.