Heat and Fire Weather Concerns West; Heavy Rain and Thunderstorms from Plains to mid-Atlantic

Thunderstorms and locally heavy rainfall is expected from the Central Plains to the Ohio Valley, mid-Atlantic and across the Southeast. Severe weather from the Upper Midwest to Central Plains increases on Friday. Major to Extreme HeatRisk continues across the Southern Plains to the lower Mississippi Valley late this week. Fire weather concerns for the northern Rockies and northern Plains today. Read More >

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Last Map Update: Thu, Sep 10, 2026 at 8:18:26 am PDT

Watches, Warnings & Advisories

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National Weather Service San Joaquin Valley, CA

National Weather Service Los Angeles, CA

Extreme Heat Warning

Heat Advisory

Small Craft Advisory

Heat Advisory: Now through Thursday

NOAA Weather Radio Test Postponed

⚠️ HEAT ADVISORY: Now through Thursday 10 PM ⚠️ A Heat Advisory has been issued for the San Francisco Bay Area and Central Coast now through Thursday. Forecast Details: Interior Highs: 90°F to 105°F Coastal Highs: Mid-70s to low-90s Overnight Lows: Mid-60s to low-70s, with higher elevations remaining elevated in the 70s to 80s, offering little overnight relief. Impacts: Heat illness risk will be elevated for anyone spending prolonged time outdoors, particularly during peak afternoon hours or while performing physical exertion. Heat Safety Tips: Drink plenty of water or sports drinks throughout the day—don't wait until you're thirsty. Take frequent breaks in air conditioning or shade. Shift outdoor activities to cooler morning or evening times. Look before you lock: Never leave people or pets inside an unattended vehicle!

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Heat and Fire Weather Concerns West; Heavy Rain and Thunderstorms from Plains to mid-Atlantic

NWS Forecast Office San Francisco, CA