Major Winter Storm in the North-Central U.S.; Severe Weather from the Mid-South to Ohio Valley

A major winter storm will bring a swath of heavy snowfall, strong winds, blizzard conditions and freezing rain to the Northern Plains into the Great Lakes region. A line of storms will be capable of producing widespread damaging winds, tornadoes, and some large hail from the Mid-south to the Ohio Valley and the Southeast. Critical fire weather concerns shift to the southern Rockies and Plains. Read More >

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Last Map Update: Sun, Mar 15, 2026 at 11:10:16 am PDT

Watches, Warnings & Advisories

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National Weather Service San Joaquin Valley, CA

National Weather Service Los Angeles, CA

Heat Advisory

Small Craft Advisory

Extreme Heat Watch

Moderate HeatRisk Sunday through Wednesday

Cold Water Safety

Heat Advisory in effect Monday through Friday

Moderate HeatRisk is expected Sunday through Wednesday with temperatures well above normal. To mitigate your risk: drink plenty of water or sports drink, do not leave children or pets in unattended vehicles, take frequent breaks in air conditioning or shade, and shift activities outdoors to cooler times of the day.

Much above normal temperatures in the upper 80s to mid 90s are expected next week across the Bay Area and Central Coast. Portions of the interior Central Coast may reach the upper 90s starting mid to late week. Overnight lows in the upper 50s to low 60s will offer some relief to the lower elevations but will offer minimal relief within the higher elevations. Conditions will be much above normal along the coast next week but coastal residents may experience more relief overnight than those across the interior. The risk of heat related illnesses will increase with each additional day of heating from this event.

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Major Winter Storm in the North-Central U.S.; Severe Weather from the Mid-South to Ohio Valley

NWS Forecast Office San Francisco, CA