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Climate and Environment

Get prepared: Red flag warning means Southern California is facing a serious wildfire threat

A man wearing the signature yellow jacket and hard hat of wildland firefighters in California stares at a mass of brush that's being consumed by huge orange flames.
A firefighter prepares to take on a wildfire.
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Kevork Djansezian
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Getty Images
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Topline:

The National Weather Service has issued a red flag warning beginning Thursday morning for Santa Barbara, Ventura, and Los Angeles counties as high heat and monsoonal moisture bring an increased risk of fire starts and extreme wildfire behavior. The warning will be in place until Saturday and may be extended.

Monsoon season: As moisture moves toward Southern California from the Gulf of California and Arizona, there's a chance thunderstorms could develop over our mountains. Brief but intense downpours are a possibility, as is dry lightning, which could result in multiple fire starts.

Extreme fires: Fuel moisture across much of the area is critically dry, making it quick to burn, which is typical for this time of year. If a fire grows quickly, pyrocumulonimbus clouds can form — those can create their own extreme weather, including dry lightning and strong winds. That makes firefighting very challenging.

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The outlook: Thunderstorms will be a concern through Sunday, though the warning may be extended. Temperatures are expected to peak at around 110 degrees on Thursday — 10 to 15 degrees above average — in desert and valley areas, but things should return to normal by the middle of next week.

Get prepared: Sign up for emergency alerts and take other precautions when fire danger is elevated. Here's a complete guide to getting prepped for wildfires.

Go deeper: Listen to LAist's The Big Burn podcast, about how to survive in the age of wildfires.

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