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October snowfall arrives for Washington mountain passes, including Snoqualmie

October snowfall has begun in the mountains. Roads are currently clear.
Credit: WSDOT

SNOQUALMIE PASS, Wash — Drivers heading through the Stevens and Snoqualmie pass this weekend are advised to use extreme caution due to heavy snowfall. Roads are currently clear but authorities say to drive with caution.

Early Sunday morning, the cold front passing through brought in a very cool airmass which will lower snow levels to between 3,500 to 4,000 feet by mid-day Sunday. Mountain passes above the 3,500 to 4,000 foot elevation are expected to accumulate 1 to 2 inches of snow, according to KING 5 meteorologists.

Stevens Pass will receive a few inches of snow while the primary concern is where the location of heavy snow bands will set up. The central Cascades may receive higher localized amounts of snow depending on where the showers persist.

Rain showers are expected in the lowlands Sunday, along with isolated thunderstorms will be expected throughout the day. Skies will be partly sunny at times in-between the showers.  Small hail showers are possible, too. Temperatures will be noticeably cooler Sunday afternoon through Tuesday morning. Both high and low temperatures are expected to be 5 to 10 degrees below normal.

On Monday morning, rain showers will wrap up and Monday afternoon should be partly sunny in the upper 40s to low 50s for highs. Tuesday morning will be the chilliest yet this season as most low temperatures will be in the 30s. The day starts dry but increasing clouds will lead to rain Tuesday night and more mountain snow showers.