WEATHER

Severe winter weather warnings Wednesday January 10: What states are affected by snow, rain and flooding?

Multiple storm systems are moving across the Untied States which will bring severe weather including snow, rain and flooding from coast to coast.

ALEX HICKS JR./USA TODAY NETWORKvia REUTERS

Cold temperatures and snow are creating dangerous conditions around the country. The National Weather Service (NWS) has issued dozens of alerts. If you live in an affected area, it is advised that you take the proper precautions to stay safe. We have compiled a list of the current winter alerts and for the full details, check out the NWS website.

What is a Winter Weather Advisory?

The NWS issues a Winter Weather Advisoryfor any amount of freezing rain, or when 2 to 4 inches of snow (alone or in combination with sleet and freezing rain), is expected to cause a significant inconvenience, but not serious enough to warrant a warning.” For the details, please review the information uploaded to the NWS website, which compiles and updates these alerts.

What is a Winter Storm Warning?

The more severe alert issued by the NWS is a Winter Storm Warning, which includes “heavy snow of at least six inches in 12 hours, or at least eight inches in 24 hours, is expected. It can also be issued if sleet accumulation will be at least half an inch.”

What is a Freezing Fog Advisory?

The NWS issues a Freezing Fog Advisory when visibility is below one mile in freezing fog. Low visibility can make driving conditions hazardous. Freezing fog will also lead to icy spots on roadways, especially on elevated surfaces such as overpasses and bridges.

What is an Ice Storm Warning? A Blizzard Warning?

The NWS also issues other severe weather alerts: one is called an Ice Storm Warning, where ice accumulation of at least one-fourth of an inch is expected, while a Blizzard Warning is given when blizzard conditions are expected for at least three hours.

Flood Warnings and Advisories

  • Washington State
  • Along the East Coast from Virginia into southern Maine

Coastal Flood Warnings and Advisories

  • Washington State
  • Oregon
  • San Francisco Bay Area
  • East Coast from the Chesapeake Bay to southern Maine

Winter Weather Advisories

  • Across the western states from the Pacific Coast to Nebraska, throughout the Rockies from Canada down to Arizona
  • Along portions of the Great Lakes including the western edge of Lake Superior, the upper regions of the lower Peninsula and tip of the Upper Peninsula Michigan. As well as the eastern coasts of Lake Erie and Ontario.
  • Portions of the Appalachian Mountains from northern Tennessee to central Vermont

Winter Storm Warnings

Alaska:

  • Southern Seward Peninsula Coast
  • Yukon Delta Coast
  • Lower Yukon River and Lower Yukon and Innoko Valleys
  • St Lawrence Island
  • Bering Strait Coast
  • Interior Seward Peninsula

California:

  • Northern Ventura County Mountains and Interstate 5 Corridor including the Grapevine
  • Western Plumas County/Lassen Park and West Slope Northern Sierra Nevada, including Interstate 80 over Donner Pass, Highway 50 over Echo Summit, and Highway 88 over Carson Pass
  • Trinity County including the higher summits on Hwy 3, 299 and 36
  • Southern Humboldt Interior County including higher elevations of Hwy 36 near Dinsmore
  • Greater Lake Tahoe Area

Idaho:

  • East Glacier Park Region Zone
  • West Central Mountains, Boise Mountains, and Upper Weiser River zones
  • Shoshone/Lava Beds, Upper/Lower Snake River Plain, Eastern Magic Valley, Southern Hills/Albion Mountains, and Raft River Region
  • Marsh/Arbon Highlands, Franklin/Eastern Oneida Region, Bear River Range, Bear Lake Valley, Blackfoot Mountains, Caribou Range, Big Hole Mountains, Teton Valley, and Centennial Mountains
  • Sawtooth/Stanley Basin, Sun Valley Region, and Wood River Foothills

Maine:

  • Central Highlands, Far Northern, and North Woods
  • Central Highlands, Far Eastern, Far Northern, and Penobscot Valley
  • Central Washington, Interior Hancock, and Southern Penobscot Counties
  • Southern Somerset, Central Somerset, Northern Franklin, Northern Oxford, and Southern Franklin Counties

Minnesota:

  • Southern Lake County

Montana:

  • Highway 56 Bull Lake Road, Highway 37 Eureka to Libby, Highway 93 Eureka to Whitefish, and Highway 2 Kalispell to Libby
  • Evaro Hill, I-90 Lookout Pass to Haugan, Highway 200 Trout Creek to Heron, and Highway 200 Thompson Falls to Plains
  • Essex, Polebridge, Marias Pass, Bad Rock Canyon, and Highway 83 Bigfork to Swan Lake

Nevada:

  • Southern Lander County and Southern Eureka County
  • Greater Lake Tahoe Area

Oregon:

  • Portions of south central Idaho and southeast Oregon
  • Central Oregon
  • Grande Ronde Valley
  • Ochoco-John Day Highlands
  • Northern Blue Mountains of Oregon
  • John Day Basin
  • Southern Blue Mountains of Oregon
  • Foothills of the Cascade, Siskiyou, and the high terrain of the Kalmiopsis wilderness mountains in Douglas, Jackson, and eastern Curry counties, including the Tiller-Trail highway and portions of Interstate 5 and highways 62 and 140 above 2000 feet
  • All areas affected. This includes Chiloquin, Crescent, Lakeview, Alturas, Canby, Adel, Silver Lake, Paisley, Fort Rock, Tulelake, and highways 31, 97, 395, 140, and 139
  • Western Siskiyou County above 2000 feet, including portions of highway 96, Sawyers Bar Road, all of Interstate 5, highways 3 and 96, and 89
  • For the Winter Storm Warning, this includes the foothills of the Cascades in Douglas, above 2000 feet, including Toketee Falls and upper portions of highway 138. For the Winter Weather Advisory, this includes valleys below 2000 feet east of Glide and west of Toketee Falls, including highway 138
  • Southern Oregon Cascades and Siskiyou Mountains, including all passes and significant portions of Interstate 5, and Highways 66, 140, 62, 138, 230, and 58
  • Cascades in Lane County
  • Cascade Foothills in Lane County
  • Northern Oregon Cascade Foothills and Upper Hood River Valley
  • Northern Oregon Cascades. In Washington, South Washington Cascades
  • Cascades in Lane County
  • Cascades in Lane County

Utah:

  • Wasatch Mountains I-80 North, Wasatch Mountains South of I-80, Western Uinta Mountains, and Wasatch Plateau/Book Cliffs
  • Wasatch Back

Washington:

  • In Oregon, Northern Oregon Cascade Foothills and Upper Hood River Valley
  • In Oregon, Northern Oregon Cascades. In Washington, South Washington Cascades

Wyoming:

  • Southwest Wyoming
  • Sierra Madre Range and Snowy Range
  • Star Valley
  • South Lincoln County
  • Jackson Hole
  • Teton and Gros Ventre Mountains and Salt River and Wyoming Ranges
  • Yellowstone National Park

It’s important to keep yourself updated with the latest weather alerts. To get the full details, you can visit the NWS website. In most cases, these warnings will advise you to stay off the roads or take necessary precautions. For instance, make sure to give yourself extra time to reach your destination as the roads might be slippery and require you to slow down at certain points. When you’re not on the road, it’s also important to be cautious while walking on walkways, sidewalks, and paths as they can become icy and increase the risk of injuries.

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