Severe Thunderstorms and Heavy Rain in the Southern U.S.; Snow in the Northern Rockies and Northern Plains

A storm system will shift from eastern Texas into the lower Mississippi Valley today with additional threats of severe thunderstorms and heavy to excessive rainfall which may bring flooding. In the northern U.S., a storm will bring heavy snow and gusty winds over parts of the northern Rockies, northern Plains, and Upper Midwest today into Wednesday. Read More >

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Last Map Update: Mon, Nov 24, 2025 at 7:10:41 am PST

Watches, Warnings & Advisories

National Weather Service San Francisco Bay Area, CA

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National Weather Service Los Angeles, CA

Dense Fog Advisory

Small Craft Advisory

Beach Hazards Statement

Dense Fog Development Monday Morning

High Transportation Risk Monday

Dense fog is making it's return to the Valley tonight, with visibilities expected to be down to a quarter mile from midnight tonight through 11 AM tomorrow morning across the San Joaquin Valley, including the I-5, SR-99, 152 and SR-198 corridors.

Dense fog has a good chance (40 to 60 percent) of forming again Monday morning across the San Joaquin Valley. A Dense Fog Advisory has been issued as a result valid from 3 AM through 11 AM Monday morning. If encountering low visibilities, slow down, turn on low beams, and leave plenty of distance between you and other vehicles.

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Severe Thunderstorms and Heavy Rain in the Southern U.S.; Snow in the Northern Rockies and Northern Plains

NWS Forecast Office Hanford, CA