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Saturday, November 20, 2010

[EDIS] Flash Flooding possible in recent burn areas in LA county Saturday

#CaStorm FLASH FLOOD WATCH - A STRONG COLD FRONT WILL SWEEP ACROSS SOUTHERN CALIFORNIA ON SATURDAY...WITH MODERATE TO HEAVY RAINFALL AND POSSIBLE THUNDERSTORMS AFFECTING LOS ANGELES COUNTY LATE SATURDAY MORNING THROUGH SATURDAY AFTERNOON. 

* FLASH FLOOD WATCH FOR THE RECENT BURN AREAS OF LOS ANGELES COUNTY...INCLUDING THE STATION...MORRIS...CROWN AND BRIGGS BURN AREAS. * FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON * RAINFALL RATES BETWEEN ONE HALF AND ONE INCH PER HOUR WILL BE POSSIBLE WITH THE FRONTAL PASSAGE. * FLASH FLOODING AND DEBRIS FLOWS WILL BE A THREAT IN AND BELOW THE RECENT BURN AREAS.

BY SATURDAY EVENING... RAINFALL TOTALS ACROSS LOS ANGELES COUNTY ARE EXPECTED TO RANGE FROM 0.75 TO 1.50 INCHES ACROSS COASTAL AND VALLEY ZONES... WITH 1.50 TO 2.50 INCHES ACROSS THE MOUNTAINS. IN ADDITION...THERE WILL BE THE THREAT OF THUNDERSTORMS AS THE FRONT MOVES ACROSS THE AREA.

RAINFALL RATES WITH HEAVIER POCKETS OF RAIN OR THUNDERSTORMS MAY APPROACH OR EXCEED USGS THRESHOLDS FOR THE RECENT BURN AREAS. LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE- ANTELOPE VALLEY-LOS ANGELES COUNTY SAN FERNANDO VALLEY- LOS ANGELES COUNTY SAN GABRIEL VALLEY- INCLUDING THE CITIES OF...ACTON...MOUNT WILSON...SANDBERG... LANCASTER...PALMDALE...WOODLAND HILLS...NORTHRIDGE...BURBANK... UNIVERSAL CITY...PASADENA...SAN GABRIEL...POMONA ...FLASH FLOOD WATCH FOR THE RECENT BURN AREAS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED  PRECAUTIONARY/PREPAREDNESS ACTIONS... &&


Instruction:
A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED.

Area: NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA

Affected Counties or parts of: Santa Barbara, Ventura, San Luis Obispo, Los Angeles

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****REMINDER**** Every fire has the ability to be catastrophic. The wildland fire management environment has profoundly changed. Growing numbers of communities, across the nation, are experiencing longer fire seasons; more frequent, bigger, and more severe, fires are a real threat. Be careful with all campfires and equipment.
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