Wild winds, low humidity, could spread wildfires across this week

The National Weather Service has issued a red flag fire weather warning for the coast and a wind advisory for the rest of San Diego County due to the onset of four days of Santa Ana winds and low humidity.

Forecasts say the winds will peak Monday night into Tuesday morning and Wednesday night into Thursday morning. The winds will blow 20 to 30 mph with gusts to 55 mph, and isolated gusts of 70 to 80 mph at a few of the county’s highest peaks.

The relative humidity will drop to 10 percent across most of the county on Monday, and will remain low for most of the week.

The combination of low humidity, high winds, and a lack of rainfall will increase the risk of wildfires.

Forecasters say the offshore flow is likely to last into next week, and that San Diego is unlikely to receive significant rain for the first half of December. The city received only 0.02’’ in November. The average temperature in November was 65.1 degrees, making it the sixth warmest November since 1922, the weather service says.

Twitter: @grobbins

gary.robbins@sduniontribune.com

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