Stay up to date with all weather conditions affecting transportation in the United States

Summary: A front moving onshore in the Pacific Northwest will result in lower elevation rainfall and mountain snow. Persistent dry, gusty winds will impact the southern to central High Plains through the week with elevated to critical fire weather conditions prevailing each day. Scattered strong storms will be possible in the Southeast U.S. Monday afternoon.

Oregon

Summary: An unsettled pattern continues from portions of the Southern Plains into the Southeast with isolated instances of severe weather and/or flash flooding possible into the weekend. A series of storms will bring low elevation rain, mountain snow, and some strong winds to the Pacific Northwest and northern California into the Rockies into early next week

Summary: The threat of severe thunderstorm will continue overnight in the Deep South. There will be a threat of isolated severe thunderstorms on Thursday along the East Coast. Blizzard conditions will continue to impact portions of the Northern Plains Thursday before snowfall intensity diminishes by the afternoon

Summary: Heavy snow and blizzard conditions will continue in parts of the Northern Plains. Severe thunderstorms capable of producing damaging wind gusts, large hail, tornadoes and flash flooding are possible from the Mississippi River Valley into the Midwest. Critical fire weather conditions will continue in portions of the Southern and Central High Plains into the Southwest Impacted: I-25, I-29, I-70, I-90, and I-94

Major lanes of concern

• Interstate 25 from Buffalo to Casper, Wyoming
• Interstate 29 in North Dakota from the Canada border to Fargo
• Interstate 70 in Colorado west of Denver
• Interstate 90 from Gillette, Wyoming, to Missoula, Montana
• Interstate 94 from Billings to Fargo

Summary: A large storm system will be responsible for a period of very active weather across many areas of the lower 48 into the middle of the week. Threats associated with this storm include blizzard conditions across the northern Plains, extremely critical fire weather across the High Plains, and a multi-day severe weather and flooding threat from the Plains into the MS River Valley. Impacted: I-25, I-29, I-70, I-90, and I-94

Major lanes of concern

• Interstate 25 from Buffalo to Casper, Wyoming
• Interstate 29 in North Dakota from the Canada border to Fargo
• Interstate 70 in Colorado west of Denver
• Interstate 90 from Gillette, Wyoming, to Missoula, Montana
• Interstate 94 from Billings to Fargo

Washington 

Summary: A significant winter storm will bring heavy snow and strong winds to the Cascades through Monday, then the northern Intermountain West through northern Plains Monday night into Thursday. Severe weather will impact areas of the southern Plains and the lower to middle Mississippi Valley through midweek. Impacted: I-25, I-29, I-70, I-90, I-94

Major lanes of concern

• Interstate 25 from Buffalo to Casper, Wyoming
• Interstate 29 in North Dakota from the Canada border to Fargo
• Interstate 70 in Colorado west of Denver
• Interstate 90 from Gillette, Wyoming, to Missoula, Montana
• Interstate 94 from Billings to Fargo

Washington 

Summary: Critical fire weather conditions are likely on Friday from the central Plains to the northwestern Gulf Coast, basically Nebraska and Kansas to southeast Texas and southwestern Louisiana, from gusty winds and very dry conditions. Meanwhile, record high temperatures are possible again in parts of California into the Great Basin with heat advisories in effect for southern California.

Washington 

Additional Flood Advisories include but not limited to: North Dakota, Minnesota, Arkansas, Mississippi, Alabama, Georgia, South Carolina, Illinois, New York, Maine, New Jersey, and Connecticut

• Flood Advisories effective until further notice
  • Minor flooding is occurring and minor flooding is forecast

Summary: A strong cold front will reach the East Coast on Thursday and likely trigger severe storms in eastern North Carolina, southeast Virginia and central Florida. Meanwhile, critical fire weather conditions will continue in portions of the south-central Plains due to gusty winds and dry conditions. Finally, heat and record high temperatures are possible in parts of California and southeast Florida. Impacted: I-29, I-35, I-45, I-70, I-80, I-90, I-94

Major lanes of concern

Gusts of 60 to 70 mph will be common from the Dakotas all the way to Texas. Not only will this elevate the risk of more rollovers, but the winds may also kick up localized dust storms, reducing visibility at times

• Interstate 29 from Omaha, Nebraska, to the U.S.-Canada border
• Interstate 35 from Dallas to Topeka, Kansas
• Interstate 45 from Houston to Dallas
• Interstate 70 from Denver to Kansas City, Missouri
• Interstate 80 from Cheyenne, Wyoming, to Omaha
• Interstate 90 in South Dakota from Pierre to Sioux Falls
• Interstate 94 in North Dakota from Bismarck to Fargo

Colorado 

Additional Flood Advisories include but not limited to: Arkansas, Mississippi, Alabama, Georgia, and Illinois

• Flood Advisories effective until further notice
  • Minor flooding is occurring and minor flooding is forecast

Summary: Yet another day of severe thunderstorms and dangerous fire weather conditions are likely on Wednesday. Widespread severe storms with heavy rain, damaging winds and a few tornadoes are expected across the Southeast section of the U.S., including the Atlanta metro area.

Additional Flood Advisories include but not limited to: Louisiana, Arkansas, Mississippi, Alabama, Kentucky, and Illinois

• Flood Advisories effective until further notice
  • Minor flooding is occurring and minor flooding is forecast

Summary: A multi-day severe weather threat continues the next three days for a large chunk of the U.S. from two separate weather systems. For Tuesday, severe storms with a swath of damaging winds and strong tornadoes are likely across the central Gulf Coast states and in parts of the Southeast. Then on Wednesday, the Southeastern quadrant of the U.S. will once again see another round of severe storms.

Additional Flood Advisories include but not limited to: Louisiana, Arkansas, Alabama, and Illinois

• Flood Advisories effective until further notice
  • Minor flooding is occurring and minor flooding is forecast