Weather overview a.m. Monday 18 October 2021

  • Pacific storm moves through the intermountain-West today, into Wyoming tonight and South Dakota by Tuesday evening.
  • Next storm impacts the West Coast beginning early Wednesday morning.

— South-central OR: Winter Weather Advisory continues through mid-morning above 5000 feet. Total snow accumulations 1-4 inches.

— Northeast CA Surprise Valley: Winter Weather Advisories continue through midday. Total accumulations 3-6 inches above 5000 feet.

— CA Central Sierra Mountains: Winter Weather Advisories continue through midmorning. 1-3 inches additional accumulation above 7000 feet. I-80 impacted.

— East-central CA: Wind Advisory for the Eastern Sierra slopes through mid-morning. Gusts to 65 mph.

— Portions of southeast CA including the Mojave Desert Slopes and southern NV: Wind Advisories through late afternoon. Gusts 40-55 mph. I-15, I-40, CA-58 impacted.

— Northeastern NV: Winter Weather Advisory for Ruby Mountains and East Humbolt Range through midnight tonight. 6-12 inches accumulation likely. I-80 impacted at the northern edge of the advisory.

— Northeast UT, extreme southwest WY: Winter Weather Advisories this afternoon through midday Tuesday. 6-12 inches snow likely. I-15, I-80 impacted.

— Portions of southwest UT: Wind Advisory midmorning through afternoon. Gusts to 45 mph. I-15 impacted.

— South-central UT, northern and central AZ: Wind Advisory midday through this evening. Gusts 45-50 mph. I-40 impacted.

— WY Wind River and Big Horn Mountains and portions of southeast WY: A combination of Winter Storm Warnings, Watches and Advisories tonight through Tuesday evening. Snow accumulations 4-8 inches in the lower elevations to 12-18 inches in the mountains. I-25 likely impacted.

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