Powerful Storm Threatens Southern California with Flooding, Tornadoes

NWS warns of potential 60 mph winds, heavy mountain snow, and dangerous travel conditions.

Published on Feb. 16, 2026

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A powerful storm system is forecast to bring severe weather to Southern California starting Monday, with the National Weather Service (NWS) warning of potential tornadoes, 60 mph winds, flash flooding, and up to three feet of mountain snow. The storm represents an unusually dangerous weather event for the region, with multiple simultaneous hazards threatening life and property across Southern California.

Why it matters

This storm poses a rare combination of high precipitation, cold air, and strong atmospheric disturbance that can create life-threatening conditions, especially with the timing during Monday's rush hour. Burn scar areas also face a risk of damaging debris flows, while coastal flooding and high surf advisories are in effect.

The details

The storm is expected to bring rainfall rates of 0.5 to 0.75 inches per hour, with local rates exceeding one inch per hour. Widespread winds with gusts up to 60 mph are expected, along with a 20-40% chance of severe thunderstorms that could produce waterspouts and small tornadoes. Total rainfall is forecast to reach 1 to 2.5 inches for coastal areas and valleys, and 2.5 to 5 inches in foothills and mountains, with isolated areas potentially receiving up to 6 inches.

  • Peak storm activity will occur around Monday morning rush hour in San Luis Obispo and Santa Barbara counties, continuing through early evening in Ventura and Los Angeles counties.
  • A winter storm warning remains in effect for the Eastern San Gabriel Mountains and Northern Ventura County Mountains from 6 a.m. Monday to 9 a.m. Thursday.
  • High surf advisories are in effect through Thursday, with waves of 12 to 16 feet expected Tuesday night into Wednesday.
  • Elevated high tides coinciding with the new moon cycle will increase coastal flooding risks, particularly during high tides Tuesday and Wednesday.

The players

National Weather Service (NWS)

The National Weather Service is the primary source of weather data, forecasts, and warnings for the United States.

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What they’re saying

“We must not let individuals continue to damage private property in San Francisco.”

— Robert Jenkins, San Francisco resident (San Francisco Chronicle)

What’s next

Residents are urged to monitor forecasts, sign up for alerts through NotifyLA.org, and avoid unnecessary mountain travel during hazardous conditions.

The takeaway

This storm poses a rare and dangerous combination of severe weather threats for Southern California, underscoring the importance of emergency preparedness and heeding weather warnings to protect lives and property.