Strong Thunderstorms Prompt Weather Alert North of LA

Residents advised to seek shelter as storm brings high winds, potential for downed trees and power lines

Published on Feb. 21, 2026

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The National Weather Service has issued a weather alert for areas north of Los Angeles, including the 5 Freeway corridor, as a strong thunderstorm moves through the region. The storm is expected to bring wind gusts up to 50 mph, which could knock down tree limbs and unsecured objects. Residents in the affected areas are advised to seek shelter indoors immediately.

Why it matters

Thunderstorms can pose a serious threat to public safety, with lightning strikes, high winds, and heavy rain creating hazardous conditions. This alert is particularly important given the storm's rapid movement and potential to cause damage to property and infrastructure in the densely populated areas north of Los Angeles.

The details

Doppler radar tracked the storm near Moorpark and Fillmore, moving east at 40 mph. The alert encompasses numerous locations, including Thousand Oaks, Acton, North Hollywood, Encino, and Downtown Los Angeles, as well as the 5 Freeway corridor near Santa Clarita and Ventura County Beaches. The National Weather Service advises those outdoors to seek shelter inside a building, and warns against using corded phones, electrical appliances, and plumbing fixtures, as well as staying away from windows and doors.

  • The weather alert was issued by the National Weather Service at 11:21 p.m. on Tuesday, February 17, 2026.
  • The alert remains in effect until Wednesday, February 18, 2026, at 12:15 a.m.

The players

National Weather Service

The National Weather Service is a government agency that is responsible for weather forecasting and issuing weather alerts and warnings.

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What’s next

The National Weather Service will continue to monitor the storm and provide updates as the situation develops. Residents in the affected areas should remain vigilant and follow the agency's safety recommendations.

The takeaway

This weather alert highlights the importance of being prepared for severe storms and taking immediate action to protect oneself and one's property. By heeding the National Weather Service's guidance and seeking shelter, residents can help minimize the potential for injury or damage during this thunderstorm event.