National Weather Service United States Department of Commerce

Severe Storms and Heavy Rain the Mississippi Valley and Midwest; Widespread Heat in the Central US

Severe thunderstorms and showers have the potential for large hail, a few strong tornadoes, damaging winds with gusts over 75 mph, and localized flash flooding across parts of the Mid/Upper Mississippi Valley and Midwest. A widespread heat wave will continue across the Central U.S. and Midwest today. Fire weather concerns persist in the Southwest into the central Rockies and northern California. Read More >

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Last Map Update: Wed, Jun 10, 2026 at 4:46:29 pm PDT

Fire weather concerns increase midweek across the North Bay Interior Mountains into the Diablo Range and eastern Santa Clara mountains due to gusty northerly winds and critically dry conditions. Concerns are highest for the North Bay Interior Mountains, where winds are strongest, with hot and dry conditions extending into the rest of the Bay Area and Central Coast. Remember one less spark, one less wildfire! #CAwx
Widespread Moderate HeatRisk is anticipated on Thursday and Friday across a good portion of the Bay Area. Moderate Heatrisk means members of heat-sensitive groups will experience negative heat-related health effects, including heat illnesses. Be sure to drink plenty of water, do not leave children or pets in unattended vehicles. Take frequent breaks in air conditions (if applicable) or shade. Shift activities outdoors to cooler times of day.
Most wildfires are caused by humans - many everyday things can create sparks. Keep ignition sources far away from dry vegetation, wood, and other fuel. Here's a graphic that details some things you can do to avoid creating sparks.
HEADS UP: If you’re planning to beat the heat with a trip to the coast, please stay alert! 🌊 #CAwx A Beach Hazards Statement is in effect now through 9 PM Thursday for Pacific Coast beaches in Sonoma, Marin, San Mateo, and Santa Cruz counties, especially south and southwest facing beaches. Long-period southerly swell will generate hazardous conditions at the beach, including sneaker waves and strong rip currents. Stay back from the water’s edge, stay off of jetties and piers, and NEVER turn your back on the ocean.
A Coastal Flood Advisory will go into effect Wednesday evening for Bayshore locations in the North Bay, and for Thursday evening for Bayshore locations in the rest of the San Francisco Bay, due to minor coastal flooding near the high tide. Up to 1.5 feet of inundation above ground level is expected in low lying areas near shorelines and tidal waterways. Allow extra time for travel, do not drive around barricades or through water, and protect flood-prone property! #CAwx

 

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