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December 6, 2009 (San Diego) – The National Weather Service has issued a flash flood watch for recently burned areas of Southern California and lists the 2007 Poomacha burn area among the most vulnerable locations. Heavy rains of one inch per hour are forecast, capable of producing debris flows in and below burn areas from noon Monday until 8 p.m. Monday evening.
Other areas included in the flash flood watch are San Diego County mountains, as well as mountain and valley areas in San Bernadino and Riverside County, as well as Santa Ana Mountains and Foothills. Areas below lands burned in the Sheep, Oak Glen, Pendleton, Cottonwood and Poomacha Fires are listed as most vulnerable to flash flooding and debris flows.
“Flash flooding and debris flows are very dangerous and life threatening,” the National Weather Service warning cautions. Residents are advised to monitor later forecasts and be prepared to take action should the flash flood watch be upgraded to a flash flood warning.
Early today the National Weather Service also issued an urgent high wind watch for Monday and Monday night due to a strong winter storm. Strong gusty winds in mountains, valleys, coastal and desert areas will have potential to cause damage to trees and power lines.
Gusts of over 55 mph will be possible in coastal and valley areas, with gale force wind gusts over 65 mph possible in the windiest mountain locations. Most severe conditions are likely Monday evening, with passage of a cold front, though gusty winds may persist until early Tuesday morning on the east slopes of San Diego County’s mountains and deserts.
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