Summary: A series of Pacific storms will bring periods of heavy low elevation rain and heavy mountain snow to the Western U.S. through the Christmas weekend. Across the southern California coast, flash flooding and debris flows are possible in the vicinity of recently burned areas. High winds may cause power outages and make for difficult travel today in the central, southern Rockies and southern Plains. Winter Advisories: Washington, Oregon, California, Nevada, Idaho, Montana, Wyoming, Utah, Colorado, Maine
Washington
Winter Storm Warning
Heavy snow continuing today above 3000ft in the Olympics and Cascades
- 4-11 inches additional snow
- Until 4 PM PST this afternoon
Impacting transit along I-90, especially through Snoqualmie Pass
Oregon
Winter Storm Warning
Heavy snow continuing today above 4000ft in the Cascades
- 8-16 inches of additional snow
- 35mph wind gusts
California
Winter Storm Warning
Heavy snow continuing today through northern CA and the Sierras
- 2-4 feet additional snow
- Up to 9 feet in some areas
- Until 4 PM Sunday.
Impacting transit along I-5 and I-80 through the mountains
Nevada
Winter Weather Advisory
Snow and blowing snow expected today across northeast NV
- 1-4 inches of snow below 6000ft
- 6-24inches above 6000ft
- Thursday afternoon through Friday morning
Idaho
Winter Storm Warning
Heavy snow expected today across central ID
- 10-20 inches of snow
- 24-30 inches over the mountains
- Until 5 PM MST Saturday
Montana
Winter Weather Advisory
Snow expected today across western MT
- 2-6 inches of snow
- 40+mph wind gusts
- Until 6 PM MST Friday
Impacting transit along I-90 west of Butte
Wyoming
Winter Storm Warning
Heavy snow expected today across western WY
- 12-24 inches of snow
- 70mph wind gusts
- From 11 PM this evening to 11 PM MST Friday.
Utah
Winter Storm Warning
Heavy snow expected today across central and northern UT
- 5-15 inches of snow
- 45mph wind gusts
- From 6 AM today to 5 AM MST Saturday
Colorado
Winter Storm Warning
Snow and blowing snow expected today across western CO
- 12-24 inches of snow
- 50mph wind gusts
- From 2 PM this afternoon to 5 AM MST Saturday
Maine
Winter Weather Advisory
Blowing snow expected today across northern ME
- 40mph wind gusts
- Until 6 PM EST this evening
Wind Advisories are also in effect for parts of Idaho, Wyoming, Colorado, New Mexico, Oklahoma, Texas, Arkansas, and Louisiana
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