The National Weather Service issued a flash flood warning for a portion of Napa County, where heavy rain has been falling on Monday.

The flash flood warning was for the Pickett Fire burn area in west-central Napa County and was originally set to expire at 3:30 p.m. Monday, but was extended to 4:15 p.m. and again to 5 p.m. The Pickett Fire burned nearly 7,000 acres in late August-early September northeast of Calistoga.

The Weather Service said at 2:43 p.m. that between 0.5 and 0.7 inches of rain had fallen, and the rainfall rate is expected to total a half-inch to one inch over the next hour. Life-threatening flash flooding was ongoing or expected to begin shortly, with the resulting debris flow moving through the Simmons Canyon and areas near and between Pickett Road to Silverado Tra

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