National Weather Service United States Department of Commerce

Tropical System in the Gulf; Dangerous Heat and Air Quality Concerns; Severe Thunderstorms for Midwest to mid-Atlantic

Tropical system in the Gulf expected to gradually strengthen the next couple of days off the Florida Panhandle and Alabama coasts. Instances of flash flooding will be possible through Thursday along the eastern and central Gulf Coast. Severe thunderstorms will develop and move along a cold front crossing the Upper Midwest, and through the Ohio Valley/Mid-Atlantic on Tuesday. Read More >

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Last Map Update: Mon, Jul 20, 2026 at 8:44:38 am PDT

Wildfires in northwest Jackson County and in central Oregon will continue to bring smoke and decreased air quality to portions of southwest Oregon and Northern California through at least Monday afternoon. Smoke is expected to spread eastward and southeastward today and tonight across eastern Douglas, Jackson, Klamath, Lake and at times, into Josephine, Siskiyou and Modoc counties. Monitor air quality conditions at fire.airnow.gov and avoid going outdoors during periods of lowered air quality.
Monsoonal moisture and atmospheric instability will bring chances for afternoon and evening thunderstorms east of the Cascades to start the week ahead. These chances are very slight (5-10%) on Monday, increasing to 20-25% by Wednesday. With increased moisture on Wednesday, chances for locally heavy rainfall and severe activity are present, but not generally expected. A stray storm or two may develop west of the Cascades on Tuesday and Wednesday.
With wildfire smoke accumulating in parts of northern California and southern Oregon, knowing the steps that can be taken to limit smoke in your home can reduce its impact on your day-to-day life. Fixing seals on windows, stocking up on air filters, maintaining your air conditioner, and using HEPA filters are all ways to create a "defensible space" of higher air quality in your home. And while masks can help during time outdoors, bring aware of areas with cleaner air (malls, libraries, civic centers) is another way to stay safe during times of poor air quality.

 

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