Windy and dry conditions along with a chance of thunderstorms creating lightning increases the fire danger for the valley, foothills, and mountains in Northern California.

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SACRAMENTO – Fire danger is high in the Central Valley valley as well as the foothills and mountains. A low pressure system moves inland Monday night and Tuesday, bringing a chance of showers and isolated thunderstorms.

Historically, this weather pattern has brought widespread lightning to the area. With the already dry conditions, erratic gusty winds and potential for lightning, fires can spark and spread quickly.

The National Weather Service expanded a Red Flag Warning to include the Sacramento Valley, northern San Joaquin Valley, and the Sacramento-San Joaquin Delta through 5 p.m. Tuesday.

A Red Flag Warning means that critical fire weather conditions are either occurring or will shortly occur.

According to Cal Fire, there have been 863 lightning strikes between noon Sunday and 6 a.m. Monday. Thirty-four fires were started from those strikes. Dennis Mathisen said only 11 acres burned and the largest fire was nine acres in the Lassen and Modoc county area.

A Fire Weather Watch goes into effect for the Tahoe Basin Tuesday evening through Wednesday afternoon because of gusty winds, low humidity and the possibility of lightning.

A Fire Weather Watch means that critical fire weather conditions are possible.

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