.A MOIST AND UNSTABLE AIR MASS WILL MOVE OVER SOUTHWEST CALIFORNIA BY
SATURDAY AND PERSIST THROUGH AT LEAST SUNDAY... RESULTING IN THE POTENTIAL
FOR FLASH FLOODING OVER THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS AS WELL
AS THE ANTELOPE VALLEY. ALTHOUGH THIS AIR MASS WILL BE AIDED BY THE DAYTIME
HEATING EACH AFTERNOON... THUNDERSTORMS AND HEAVY SHOWERS WILL BE POSSIBLE
ANYTIME SATURDAY AFTERNOON THROUGH SUNDAY EVENING...EVEN AT NIGHT. VENTURA
COUNTY MOUNTAINS- LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA
RANGE- ANTELOPE VALLEY- INCLUDING THE CITIES OF... LOCKWOOD VALLEY... MOUNT
PINOS... ACTON... MOUNT WILSON...SANDBERG...LANCASTER...PALMDALE ...FLASH
FLOOD WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH SUNDAY EVENING... THE
NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A * FLASH FLOOD
WATCH FOR A PORTION OF SOUTHWEST CALIFORNIA... INCLUDING THE FOLLOWING
AREAS...ANTELOPE VALLEY...LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA
MONICA RANGE AND VENTURA COUNTY MOUNTAINS. * FROM SATURDAY AFTERNOON THROUGH
SUNDAY EVENING * A MOIST AND UNSTABLE AIR MASS COMBINED WITH WEAK WINDS
ALOFT WILL BRING THE POTENTIAL FOR SLOW MOVING SHOWERS AND
THUNDERSTORMS...CAPABLE OF PRODUCING HEAVY RAINFALL RATES AND FLASH
FLOODING. * WHERE HEAVY RAINS OCCUR...EXPECT VERY RAPID RISES IN NORMALLY
DRY WASHES IN DESERT AREAS...AND FLOODING OF ROADWAYS AND LOW LYING POORLY
DRAINED URBAN AREAS. AREAS OF MOST CONCERN INCLUDE THE SOUTHEAST CORNER OF
THE ANTELOPE VALLEY...THE SAN GABRIEL MOUNTAINS...AND AREAS AROUND LOCKWOOD
VALLEY. 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
Sent: 2011-07-29T15:00:26-07:00
Original Sender: KLOX@nwws.oes.ca.gov
From: NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
------------------------------------
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