Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

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Last Map Update: Wed, Sep 9, 2026 at 2:14:32 am PDT

Watches, Warnings & Advisories

National Weather Service Seattle/Tacoma, WA

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Small Craft Advisory

Low Water Alert

River stage levels will fall below 1 foot each day during low tide along the Columbia and Willamette Rivers in the Portland/Vancouver metro area. Boaters should use caution to avoid running aground, especially around low tide.