Red Flag Warning Issued for Southwest California Due to Extreme Heat and Fire Risk
Red Flag Warning Issued for Southwest California Due to Extreme Heat and Fire Risk
US · Published Aug 26, 2026
The National Weather Service in Los Angeles/Oxnard has issued a Red Flag Warning for interior portions of Southwest California, including the Eastern San Gabriel Mountains and Santa Susana Mountains. This warning is in effect from 10 AM PDT Tuesday, August 25, 2026, through 3 PM PDT Friday, August 28,
The region is experiencing extreme heat, instability, locally gusty winds, and low humidity levels, which significantly increase the risk of large plume-dominated fires with rapid spread and extreme fire behavior. Temperatures are expected to range from 96°F to 106°F (35°C to 41°C) in lower elevations and 85°F to 95°F (29°C to 35°C) in higher mountains, with poor humidity recovery overnight.

Impact & Risks

The combination of extreme heat, low humidity, and gusty winds poses a significant risk for large, fast-spreading wildfires in the affected areas. Residents near wildland interfaces are advised to prepare for potential evacuations. Sensitive groups, including the elderly, children, and those with respiratory conditions, may face heightened health risks due to the extreme heat and potential air quality issues. Historical data indicates similar conditions have led to devastating fires, such as the Bridge, Bobcat, and Station fires.

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