Flash Flood Watch

FLOOD WATCH
NATIONAL WEATHER SERVICE SAN DIEGO CA
937 PM PST MON DEC 1 2014

...FLASH FLOOD WATCH FOR THE COASTAL...VALLEY AND MOUNTAIN AREAS
TUESDAY INTO EARLY WEDNESDAY MORNING...

.DEEP SUBTROPICAL MOISTURE WILL MOVE INTO SOUTHERN CALIFORNIA
TUESDAY BRINGING MODERATE TO HEAVY RAIN AND THE POTENTIAL FOR
FLASH FLOODING TUESDAY THROUGH EARLY WEDNESDAY MORNING. THE
GREATEST THREAT FOR FLASH FLOODING AND DEBRIS FLOWS WILL BE ON
STEEP COASTAL MOUNTAIN SLOPES AND IN AND BELOW THE RECENT BURN
AREAS. MODERATE TO HEAVY RAIN IN THE COASTAL AND VALLEY AREAS
WILL PRODUCE URBAN FLOODING...ESPECIALLY IN LOW-LYING AND OTHER
POORLY DRAINED AREAS. THERE IS SOME RISK FOR FLASH FLOODING WEST
OF THE MOUNTAINS SHOULD VERY INTENSE RAINFALL DEVELOP.

CAZ042-048-055-057-021400-
/O.CON.KSGX.FF.A.0011.141202T1700Z-141203T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ORANGE COUNTY COASTAL AREAS-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN BERNARDINO COUNTY MOUNTAINS-SANTA ANA MOUNTAINS AND FOOTHILLS-
937 PM PST MON DEC 1 2014

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 9 AM PST TUESDAY
THROUGH LATE TUESDAY NIGHT...

THE FLASH FLOOD WATCH CONTINUES FOR

* LOCATION: A PORTION OF SOUTHWEST CALIFORNIA...INCLUDING THE
FOLLOWING AREAS...ORANGE COUNTY COASTAL AREAS...SAN BERNARDINO
COUNTY MOUNTAINS...SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-
THE INLAND EMPIRE AND SANTA ANA MOUNTAINS AND FOOTHILLS.

* TIMING: FROM 9 AM PST TUESDAY THROUGH 6 AM PST WEDNESDAY
MORNING.

* RAINFALL: AN EXTENDED PERIOD OF MODERATE TO HEAVY RAIN IS
FORECAST TUESDAY INTO TUESDAY NIGHT. 1-2.5 INCHES OF RAIN ARE
FORECAST IN THE COASTAL AND VALLEY AREAS. 2-4 INCHES ARE
FORECAST IN THE MOUNTAINS...WITH HIGHER AMOUNTS IN EXCESS OF 5
INCHES.

* IMPACTS: FLASH FLOODING AND MUD AND DEBRIS FLOWS IN THE
MOUNTAINS AND RECENTLY BURNED AREAS...INCLUDING THE SILVERADO
FIRE IN THE SANTA ANA MOUNTAINS. COASTAL AND VALLEY AREAS WILL
LIKELY HAVE URBAN FLOODING...WITH A SMALL RISK OF FLASH FLOODING
SHOULD VERY HEAVY SHOWERS DEVELOP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXTENDED PERIOD OF HEAVY RAINFALL MAY RESULT IN DEBRIS FLOWS
IN THE SILVERADO FIRE IN THE SANTA ANA MOUNTAINS. FOR FURTHER
INFORMATION ON DEBRIS FLOW HAZARDS...VISIT THE FOLLOWING USGS
WEBSITE AT (HTTP://NHSS.CR.USGS.GOV/)

&&

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