Winter Storm Nathaniel, a strong frontal system, is impacting California and will bring gusty winds, heavy rain, and mountain snow. White out/blizzard conditions and heavy snow in the Sierra Nevada may cause road closures and travel delays. Additionally flash flooding and debris flows are possible across parts of central and southern California. A wintry mix due to winter storm Lana is expected in the Tennessee Valley into the southern Appalachians. Active Advisories: Washington, Oregon, California, Idaho, Nevada, Montana, Wyoming, Missouri, Arkansas, Illinois, Indiana, Kentucky, Tennessee, West Virginia, Virginia, North Carolina, New York, Vermont, New Hampshire
Washington
Winter Storm Warning
Heavy snow continuing today across the Cascades and eastern WA
- 3-6 inches additional snow
- Until Noon PST today
Oregon
Winter Storm Warning
Heavy snow continuing today across southeast OR
- 2-6 inches of snow
- Up to 10 inches over the mountains
- 40mph wind gusts
- Until 5 PM MST /4 PM PST/ Wednesday
California
Winter Storm Warning
Heavy snow expected today across northern CA and the Sierra Nevada
- Northern CA
- 8-16 inches additional snow
- 45mph wind gusts
- Until 10 PM PST this evening
- Northern Sierra
- Up to 1 foot below 3000ft
- 1-5 feet of snow above 3000ft
- 5-7 feet of snow above 4500ft
- Through 2 AM Friday
- Southern Sierra
- 6-10 feet of snow above 4000ft
- 5-10 inches of snow below 4000ft
- 55mph wind gusts
- Until 4 AM PST Friday
Impacting transit along I-5 and I-80
Blizzard Warning
Blizzard conditions expected later today across the West Slope Northern Sierra Nevada, Greater Lake Tahoe Area, and Mono County.
- 5-8 feet of snow
- 50mph winds
- 70mph wind gusts
- Through 4 AM PST Friday
Idaho
Winter Storm Warning
Heavy snow expected today across southern ID
- 10-20 inches of lower elevation snow
- 25-30 inches of higher elevation snow
- 25-35mph wind gusts
- Until 5 AM MST Friday
Impacting transit along I-15
Nevada
Winter Weather Advisory
Snow expected today across western NV
- 1-3 inches of valley snow
- 6-10 inches of mountain snow
- 45mph wind gusts
Impacting transit along I-80
Montana
Winter Weather Advisory
Snow developing this morning across southwest MT
- 5 inches of lower elevation snow
- 12+ inches of higher elevation snow
- 40mph wind gusts
- Until 5 PM MST Thursday
Wyoming
Winter Weather Advisory
Blowing snow occurring today in rural areas
- 45-65mph wind gusts
- From 9 AM this morning to 10 PM MST this evening
Missouri
Winter Weather Advisory
Snow continuing this morning across the state
- 1-3 inches of additional snow
- Until noon CST today
Arkansas
Winter Weather Advisory
Accumulating snow expected this morning across northern AR
- 2 inches of snow
- Sleet/Freezing rain
- Through this morning
Illinois
Winter Weather Advisory
Snow expected today across southern IL
- 1-2 inches of snow
- Until 3 PM CST this afternoon
Indiana
Winter Weather Advisory
Snow beginning this afternoon across southern IN
- 1-3 inches of snow
- From 3 PM Wednesday to 1 AM EST Thursday
Kentucky
Winter Weather Advisory
Snow expected to begin this afternoon across eastern KY
- 1-2 inches of snow
- From 4 PM Wednesday to 3 AM EST Thursday
Tennessee
Winter Weather Advisory
Snow expected to begin this evening across northeast TN
- 2-5 inches of snow
- From 7 PM this evening to 7 AM EST Thursday
West Virginia
Winter Weather Advisory
Snow expected to begin this evening across southern WV
- 1-3 inches of snow
- From 6 PM this evening to 7 AM EST Thursday
Virginia
Winter Weather Advisory
Snow expected to begin this evening across western VA
- 2-4 inches of snow
- 35mph wind gusts
- From 6 PM this evening to noon EST Thursday
North Carolina
Winter Storm Warning
Heavy snow expected this evening above 3500ft along the TN border
- 3-6 inches of snow
- 40-50mph wind gusts
- From 6 PM this evening to noon EST Thursday
Winter Weather Advisory
Snow expected overnight across northern NC
- 2 inches of snow
- From midnight tonight to 8 AM EST Thursday
New York
Winter Weather Advisory
Snow continuing this morning across east central NY
- 4-8 inches of snow
- Until 10 AM EST this morning
Vermont/New Hampshire
Winter Weather Advisory
Snow continuing this morning across southern VT and NH
- 1 inch additional snow
- Until Noon EST today
