Long range forecast through the end of the month

Posted at 1:49 PM, Nov 15, 2020
and last updated 2020-11-15 15:49:50-05

BOZEMAN – A disorganized Pacific storm is producing mostly mountain snow west of the divide and gusty winds east of the divide Sunday afternoon.

Locally, this storm system is having no impact at all except for some locally windy conditions Sunday afternoon which is helping temperatures warm up to normal levels in the 40s.

As this storm moves slowly east to SE it will continue to weaken but could produce scattered mountain snow showers Sunday night into Monday morning from Monida Pass over to West Yellowstone. Island Park, ID and Yellowstone National Park will have a higher probability for accumulating snow through Monday evening.

Big Sky to West Yellowstone to Gardiner could see minor snow accumulations and slow go travel through Monday evening.

The National Weather Service has issued a WINTER WEATHER ADVISORY for Island Park, ID and Yellowstone National Park through Monday morning.

Valleys could see 2”-6” of snow and mountains 6”-12”.

Up next, is a High-pressure ridge pattern Tuesday through Wednesday. Flow aloft will shift out of the SW and could help produce warming temperatures. Low to mid 50s are possible for a few days Tuesday and Wednesday.

Climate Prediction Center’s 8 to 14 day outlook taking us through the end of November is looking favorable with near to slightly above temperatures and near normal to slightly above normal for precipitation.