Hot Temperatures in the Northwest U.S.; Excessive Rainfall Potential in the Southwest U.S.

Hot to extremely hot daytime temperatures remain in place across coastal southern California and the interior Northwest, with the Northwest carrying the potential for record-breaking high temperatures. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring a marginal to slight risk of excessive rainfall across the southwest U.S. this week. Read More >

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Last Map Update: Tue, Sep 2, 2025 at 7:30:08 pm PDT

Watches, Warnings & Advisories

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National Weather Service San Francisco Bay Area, CA

Red Flag Warning

Small Craft Advisory

Red Flag Warning

A Red Flag Warning has been issued for portions of Trinity, Humboldt, and Del Norte Counties for isolated dry thunderstorms Tuesday afternoon and evening. New fire starts are possible and may spread quickly with gusty and erratic outflow winds. Outside these areas, fire danger remains high for much of the interior as conditions are forecast to be hot, dry, and breezy.