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

Summary
Strong to severe thunderstorms are possible on Wednesday in parts of the Ohio Valley, Upper Mississippi Valley and south-central Plains. These storms may produce heavy rain and flooding in the Ohio Valley. Meanwhile, a strong cold front will sweep through the Northwest U.S. with rain, mountain snow and high winds. Finally, heat and record high temperatures are likely across the Southern U.S.

Washington

Summary:
The early-season heat across portions of the Southern U.S. will continue for much of this week with more potential record high temperatures. On Tuesday, expect 90s and triple digits from the southern Plains into parts of the Lower Mississippi Valley. Also on Tuesday, strong to severe thunderstorms and locally heavy rainfall will be possible from the central Plains into the Mid Mississippi Valley.

Summary:
Scattered severe storms may produce damaging winds, hail, a few tornadoes, and isolated flash flooding from central New York/western New England southward into the Carolinas on Monday. An expansive early season heat wave will persist through the week bringing record-breaking temperatures across the Southwest through the Southern Plains through the week.

Summary:
Severe thunderstorms with damaging wind gusts, large hail, and a few tornadoes are possible tonight over parts of the eastern Dakotas, eastern Nebraska, western Iowa, and Minnesota. Heavy rain will lead to a threat of isolated flash, urban, and small stream flooding across the Northern Plains.

Major Events:

Southwest Wildfires

• What: Wind gusts of up to 60 mph today
• Where: Colorado, Nebraska, Arkansas, Oklahoma, Texas, and New Mexico
• Impacts: Truckers may run into road closures, low visibility due to smoke, and a high risk of rollovers
• Major Lanes of Concern: I-10, I-20, I-25, I-40, I-70

Major Flooding

• What: Additional rain and rapid snow melt causing continued flooding
• Where: North Dakota and Minnesota
• Impacts: State highways and road closures likely
• Major Lanes of Concern: I-29, I-94, US Highway 2 

Summary:
Severe thunderstorms will continue across the Upper Midwest into Thursday with all hazards possible. Fire weather concerns persist across eastern Colorado and the south-central High Plains with elevated to critical conditions. This region continues to be extremely dry with drought conditions and winds remaining gusty during peak heating hours.

Major Events:

Southwest Wildfires

• What: Wind gusts of up to 60 mph today
• Where: Colorado, Nebraska, Arkansas, Oklahoma, Texas, and New Mexico
• Impacts: Truckers may run into road closures, low visibility due to smoke, and a high risk of rollovers

Major Flooding

• What: Additional rain and rapid snow melt causing continued flooding
• Where: North Dakota and Minnesota
• Impacts: State highways and road closures likely
• Major Lanes of Concern: I-29, I-94, US Highway 2 

Summary:

Severe thunderstorms are expected tonight across portions of Wisconsin and western Texas. Widespread critical fire weather threats and red flag warnings will continue through the week from the Southwest through a large section of the Four Corners region into the southern High Plains. Conditions remain exceptionally dry with strong, gusty winds and above normal temperatures. Major lanes of concern: I-10, I-20, I-25, I-40, I-70

Major Events: Southwest Wildfires

The National Weather Service is forecasting gusts of 60 to 70 mph Monday, and possibly Tuesday, for many parts of New Mexico, Colorado, northern Arizona and southern Nevada. Isolated spots could see gusts up to 80 or 90 mph.

Truckers may run into road closures, low visibility due to smoke, and a high risk of rollovers

Summary:

Strong and gusty winds, exceptionally low humidity, and above average warmth will bring prolonged critical fire weather conditions to the Southwest and Southern Plains. Scattered severe thunderstorms are forecast across the Upper Midwest and the southern High Plains into midweek. Record warmth continues across much of the central U.S., while the West remain below normal. Major lanes of concern: I-10, I-20, I-25, I-40, I-70

Major Events: Southwest Wildfires

The National Weather Service is forecasting gusts of 60 to 70 mph Monday, and possibly Tuesday, for many parts of New Mexico, Colorado, northern Arizona and southern Nevada. Isolated spots could see gusts up to 80 or 90 mph.

Truckers may run into road closures, low visibility due to smoke, and a high risk of rollovers

Summary:

The major weather story on Monday will be the continued critical fire weather concerns in the Four Corners region with extreme threats in New Mexico. Also, the West will remain inclement and cool, heat builds in the southern Plains and Lower Mississippi Valley and some strong to severe thunderstorms are possible from Iowa into parts of Minnesota and Wisconsin.

Major lanes of concern - I-10, I-20, I-25, I-40, I-70

As fire weather conditions rise across the Southwest, truckers may run into road closures, low visibility due to smoke, and a high risk of rollovers