The lingering winter storm across the western US and its active atmospheric river will persist through the morning in central California and through the day in southern California, resulting in a continued threat of flash and urban flooding, debris flows over and near recent burn scars, and hazardous travel conditions. Lingering snow showers will remain throughout the Great Basin and Intermountain West. Another storm system, Winter Storm Olena, is developing over the midwest and is expected to cause impacts into early next week. Active Advisories: California, Nevada, Idaho, Utah, Arizona, Iowa, Wisconsin, Illinois, Indiana, Ohio, Pennsylvania, New York, Maine
California
Winter Storm Warning
Additional snowfall continuing today throughout the Sierra Nevada
- North Sierra
- 10-18 inches additional snow above 7,000ft
- 8-15 inches additional snow above 5000ft
- 4-8 inches of additional snow below 5,000ft
- Until 10 AM PST
- South Sierra
- 6-12 inches additional snow above 5,500ft
- 3-6 inches additional snow above 4,500ft
- 1-3 inches additional snow below 4,500ft
I-80 is closed from the NV state line to Colfax
Nevada
Winter Weather Advisory
Snow continuing today across much of the state
- 1-5 inches additional snow
- 45mph wind gusts
- Until 4 PM PST this afternoon
Impacting transit along I-80 and I-580. I-80 is closed form mile 49 in Placer County to the CA border
Idaho
Winter Storm Warning
Snow continuing today across southern portions of the state
- 2-6 inches of additional snow
- Until 5 PM MST Friday
Utah
Winter Weather Advisory
Snow expected today across the western half of the state
- 6-12 inches of snow
- From Noon today to 9 AM MST Saturday
Will likely impact transit along I-80 west of SLC
Arizona
Winter Weather Advisory
Snow developing by midday today over 6,000ft across northern AZ
- 4-8 inches of snow
- 25-35mph wind gusts
- From noon today to 11 PM MST this evening
May impact transit along I-40
Iowa
Winter Storm Watch
Heavy mixed precipitation possible tomorrow afternoon across east central IA
- 4-8 inches of snow
- Glazing ice
- From Saturday afternoon through Sunday morning
Wisconsin
Winter Storm Watch
Heavy snow possible tomorrow afternoon across southern WI
- 5-7 inches of snow
- 35mph wind gusts
- From Saturday afternoon through Sunday morning
Illinois
Winter Storm Watch
Heavy, wet snow likely over the weekend across northern IL
- 5-9 inches of snow
- 30mph wind gusts
- From Saturday afternoon through Sunday morning
Indiana
Winter Storm Watch
Heavy snow possible over the weekend across northern IN
- 5-9 inches of snow
- From Saturday evening through Sunday evening
Ohio
Winter Storm Watch
Heavy, wet snow possible over the weekend across northwestern OH
- 5-8 inches of snow
- From Saturday evening through Monday morning
Pennsylvania
Winter Weather Advisory
Lake effect snow continuing this morning across northwest PA
- 2-4 inches of additional snow
- Until 10 AM EST this morning
New York
Winter Weather Advisory
Snow occurring this morning across central NY
- 1 inch of additional snow
- Until noon EST today
Maine
Winter Weather Advisory
Snow continuing this morning across southeast ME
- 1-2 inches of additional snow
- Until 10 AM EST this morning
