Red Flag Warning Extended Until Monday Evening

NORTHERN CALIFORNIA -- The National Weather Service announced Monday that a Red Flag Warning was extended until 5 p.m. Monday as the region experiences high temperatures and strong winds.

A Red Flag Warning means that the region is experiencing critical fire weather conditions.

The affected area includes Sonoma, Marin and Napa counties.

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Forecasters said Napa County faces the highest threat, especially along the Yolo County line.

Any fires that develop will likely spread rapidly, forecasters said.

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