Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

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Last Map Update: Sun, Dec 7, 2025 at 7:06:47 pm PST

Watches, Warnings & Advisories

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National Weather Service San Francisco Bay Area, CA

National Weather Service San Joaquin Valley, CA

Dense Fog Advisory

Small Craft Advisory

Wind Advisory

The Week Ahead

Mild, dry weather will persist through the week, with record highs possible from Tuesday through Thursday. Highs will reach the 60s across the Sierra and western Nevada valleys, peaking Wednesday when some warmer valleys could reach the upper 60s (around 15–20° above average).