March Heatwave and Snowmelt Recorded Briefing

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Last Map Update: Tue, Mar 17, 2026 at 1:30:16 pm PDT

Watches, Warnings & Advisories

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National Weather Service San Francisco Bay Area, CA

National Weather Service San Joaquin Valley, CA

Hazardous Materials Warning

Extreme Heat Warning

Heat Advisory

Record Warming

Record Warmth This Week

In the mood to smash some records? These afternoon high temperatures are more reminiscent of summertime. With that, lakes and rivers will look appetizing to cool off in but try to refrain as they'll be running fast and cold from snowmelt.

Strong high pressure will make this week feel more like early June than mid-March with record-breaking temperatures likely. Be sure to stay hydrated and avoid area waterways, which will be running fast and cold!