Forecast By SnowBrains Chief Meteorologist – Eric McNamee

 4:40 pm MDT, 10/21/2022

Forecast Summary:

A potently cold trough will dig into the northern Rockies this weekend and bring upwards of 2 Feet of Snow to some peaks through Monday.

Ongoing snow will continue through Monday morning as moisture is drawn into the region.

Snow will generally taper off by Monday afternoon before another system begins to push into the region Monday night and Tuesday.

Specific snow totals are unknown with this next system but we will keep an eye on how it evolves through the weekend.

Short-Term Forecast:

Friday night-Monday:

As mentioned, a potently cold trough will dig into the northern Rockies this weekend and bring upwards of 2 Feet of Snow to some peaks through Monday.

Ongoing snow will continue tonight across primarily ID/MT, heavy at times, as the cold front associated with this trough slowly pushes to the south. 

By early tomorrow, the main line of precipitation will have moved into NW Wyoming.

Snow will then continue across most of the region during the day Saturday before tapering off a bit Saturday evening.

Getting into Sunday, the center of the trough will push more into the prairie and upslope snow across the eastern slope.

This will continue through the day Sunday and into Monday morning.

Snow will generally taper off for the most part by midday Monday across the region.

By Monday afternoon/evening the next system will push into NW portions of the area.

Long-Term Forecast:

Tuesday-Thursday:

The following system pushing through the region will be a fairly quick hitter with snow ending Tuesday night.

Exact snowfall totals are unknown at this time but should be lighter in comparison to this weekend’s system.

Extended Forecast:

Thursday and Beyond:

Global ensembles indicate above-average precipitation and near to below-average temperatures across the region in the extended.