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Air stagnation advisory in effect for West-Central and Southwest Montana valleys

Inversions mean cooler valleys with degraded air quality
Posted at 1:58 PM, Jan 11, 2022
and last updated 2022-01-11 19:58:37-05

MISSOULA — Inversions remain strong across West-Central and Southwest valleys Tuesday afternoon where temperatures have stayed below freezing.

A disturbance moved through the northwest corner allowing snow and rain (and freezing rain) to fall in valleys.

Late Tuesday night, moisture is likely to reach as far down as the I-90 corridor.

A Winter Weather Advisory is in effect as mixed precipitation is expected to fall and collect on roadways through early Wednesday morning.

Winter Weather Advisory for ice and light snow accumulation through Wednesday morning
Winter Weather Advisory for ice and light snow accumulation through Wednesday morning

Some valleys may see light freezing rain while snow levels stay mostly above valley floors.

Moisture moves out for the end of the week, and we stay dry through the weekend.

Next week we look at a more active system approaching our area.

We will keep our eyes on Tuesday night and Wednesday night’s forecast before our next system arrives early next week.