Weather Updates

Weather Update 12.10.21 - U.S.

Posted by Jarrett on Dec 10, 2021 8:45:39 AM


Summary: Winter Storm Atticus may produce 1 to 2 feet of snow across the Intermountain West before moving onto the north Plains and Great Lakes through Friday with heavy snow. Other hazards include severe storms with possible tornadoes, heavy rainfall, across the Mid-South. Critical fire weather threats increase across the South Plains on Friday. For southern portions of Alaska, a powerful storm is expected. Winter Advisories: Washington, Oregon, California, Idaho, Utah, Montana, Wyoming, Colorado, New Mexico, South Dakota, Nebraska, Minnesota, Iowa, Wisconsin, Michigan, New York, Vermont
 
Washington
Winter Storm Warning
Heavy snow expected today above 3000 feet across the Cascades and Olympic Mountains
  • 18-36 inches of additional snow
  • 50mph wind gusts
  • Freezing rain also possible
  • From 6 PM this evening to 4 AM PST Sunday
Winter Storm Watch
Heavy snow possible today above 3000 feet across the east slope southern Cascades
  • 10-16 inches of snow
  • 5-10 inches of snow below 3000ft
  • 40mph wind gusts
  • From Friday afternoon through Sunday afternoon
Impacting transit along I-90 and US-2, including through Snoqualmie and Stevens Passes
 
Oregon
Winter Storm Warning
Heavy snow expected tomorrow above 3000ft across the Cascades
  • 12-20 inches of snow
  • 45mph wind gusts
  • From 8 AM Saturday to 8 AM PST Sunday
California
Winter Storm Watch
Heavy snow possible tomorrow across northern CA and the Sierras
  • 1-2 feet of snow
    • Up to 5 feet in some areas
  • From Saturday afternoon through late Monday night
Idaho
Winter Weather Advisory
Snow continuing this morning across the Panhandle
  • 1-2 inches of additional snow
  • Until 8 AM PST this morning
Winter Storm Watch
Heavy snow possible this evening across the panhandle and central ID
  • 4-8 inches of valley snow
  • 10-20 inches of mountain snow
  • From this evening through late Saturday night
Expected to impact transit along I-90 and US-12 including through Lookout, Fourth of July, and Lolo Passes
 
Utah
Winter Weather Advisory
Snow continuing today across north central UT
  • 3-6 inches additional snow
  • Until 4 PM MST this afternoon
Impacting transit along I-15, I-70, I-80, and I-215
 
Montana
Winter Storm Watch
Heavy snow possible this evening across northwest MT
  • 9-16 inches of snow
  • 60mph wind gusts
  • From late Friday night through Sunday morning
Expected to impact transit along I-90 including through Lookout Pass
 
Wyoming
Winter Storm Warning
Snow and blowing snow expected today across most of southeast WY
  • 1-3 inches of additional snow
  • 35mph wind gusts
  • Until 5 PM MST Friday
Impacting transit along I-80 and I-25
 
Colorado
Winter Storm Warning
Heavy snowfall continuing today across the western half of CO
  • 3-6 inches of additional snowfall
    • Up to 9 inches on the slopes
  • 45mph wind gusts
  • Until 6 PM MST this evening
New Mexico
Winter Weather Advisory
Snow expected this morning across northwest NM
  • 2-6 inches of snow
    • 8-10 inches across higher elevations
  • 50mph wind gusts
  • Until 11 AM MST this morning
South Dakota
Winter Storm Warning
Heavy snow occurring today across southern SD
  • 3-9 inches of snow
  • Until 6 PM CST this evening
Impacting transit along I-90 and I-29
 
Nebraska
Winter Storm Warning
Heavy snow occurring today across northern NE
  • 5-8 inches of snow
  • Until 6 PM CST /5 PM MST/ this evening
Impacting transit along I-20
 
Minnesota
Winter Storm Warning
Heavy snow expected today across southern MN
  • 6-14 inches of snow
  • From noon today to 6 AM CST Saturday
Will likely impact transit along I-90 and I-35
 
Iowa
Winter Storm Warning
Heavy and blowing snow expected today across northern IA
  • 4-9 inches of snow
  • 35mph wind gusts
  • From 9 AM this morning to 6 AM CST Saturday
Will likely impact transit along I-35
 
Wisconsin
Winter Storm Warning
Heavy snow expected this afternoon across much of the state
  • 6-12 inches of snow
  • Light glaze of ice
  • 30-45mph wind gusts
  • From 3 PM this afternoon to Noon CST Saturday
Will likely impact transit along I-90, I-94, I-41, and I-43
 
Michigan
Winter Storm Warning
Heavy snow expected this evening across the U.P.
  • 4-9 inches of snow
  • From 7 PM EST /6 PM CST/ this evening to 10 AM EST /9  AM CST/ Saturday
New York
Winter Weather Advisory
Freezing rain expected tomorrow across northern NY
  • Light glaze of ice
  • From 3 AM to 8 AM EST Saturday
Vermont
Winter Weather Advisory
Mixed precipitation expected tomorrow across much of the state
  • Glaze of ice
  • From 3 AM to 10 AM EST Saturday
 
Wind Advisories are also in place for parts of Washington, Oregon, Montana, Colorado, New Mexico, Oklahoma, Texas, Arkansas, Louisiana, Illinois, Michigan, Ohio, West Virginia, New York, Pennsylvania, Maryland, New Jersey and Delaware
 
 
 
For more information please visit
 
 

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