Southern California Heatwave to End as Storms Bring Cooler, Wetter Weather

Powerful storm system moving in from the Pacific Northwest will provide relief from record-breaking temperatures.

Published on Feb. 11, 2026

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After days of record-breaking heat and heightened fire danger across Southern California, a dramatic shift in the weather pattern is underway. A powerful storm system originating in the Pacific Northwest is moving southward, bringing cooler temperatures, widespread rainfall, and even snow in the mountains. The first impacts are expected as early as Tuesday, with a significant drop in temperatures, increased cloud cover, and the potential for flash flooding in some areas.

Why it matters

The heatwave has strained the region's power grid, increased the risk of wildfires, and posed health concerns, especially for vulnerable populations. The incoming storm system will provide much-needed relief, benefiting agriculture, tourism, and utility providers, while also requiring emergency services to prepare for potential flooding and wind-related incidents.

The details

The recent heatwave saw temperatures soar across Southern California, with many areas experiencing highs well into the 80s and 90s - unusually warm for February. Several locations tied or broke daily temperature records, and the dry conditions combined with strong Santa Ana winds created critical fire weather conditions, leading to red flag warnings. The approaching storm system is expected to bring a dramatic change, with highs dropping by nearly 20 degrees to more seasonal averages in the 60s and low 70s. Widespread rainfall is anticipated, with the heaviest precipitation likely to occur on Wednesday and Thursday. Mountain areas could see several inches of snow, while coastal and valley regions will receive moderate amounts of rain. Gusty winds will also accompany the storm, particularly in mountain passes and desert areas.

  • The first impacts of the storm system are expected to be felt as early as Tuesday, February 14, 2026.
  • The heaviest precipitation is likely to occur on Wednesday, February 15, and Thursday, February 16, 2026.

The players

National Weather Service

The federal agency responsible for weather forecasting and issuing weather-related warnings and advisories.

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What they’re saying

“We must prepare for the potential of flash flooding, especially in areas recently burned by wildfires.”

— National Weather Service

What’s next

Emergency responders are preparing for potential flooding and wind-related incidents as the storm system approaches.

The takeaway

The incoming storm system will provide much-needed relief to Southern California after a prolonged heatwave, but residents should still take precautions against potential hazards like flash flooding and power outages. This weather event highlights the region's climate variability and the importance of preparedness.