Potentially powerful winds combined with dry weather are raising the threat of wildfires in California.

State firefighters say they are preparing for potential extreme fire weather early in the week.

The National Weather Service has issued warnings for increased fire risk across a swath of northern California on Monday.

In Southern California, the expected shift comes after the region was lashed by thunderstorms and rain on Friday and Saturday.

Weather Service meteorologist Keily Delerme said Saturday that increased fire risk in Southern California will run into Tuesday.

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