More hot and dry weather across Southern California on Wednesday is increasing the risk of brush fires, resulting in Public Safety Power Shutoffs for thousands of residents.

The National Weather Service (NWS) has issued a Red Flag Warning for parts of Los Angeles and Ventura counties through 6 p.m. this evening.

Wind gusts, combined with very warm temperatures and low humidity, bring a major risk of fire danger to the region. "Extreme fire behavior and rapid growth are likely with any new fire starts," the NWS said.

Santa Ana winds are expected to bring gusts up to 45 mph through the Santa Susana Mountains.

Heat advisories are also in effect for Los Angeles, Ventura and Orange counties, as well as the Inland Empire, until Wednesday evening.

Afternoon temperatures are expected to reach

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