FLASH FLOOD WATCH IN EFFECT THROUGH TUESDAY

e0059 b6bwa00000
u n Urgent-NWS_VEF-FLASH_FLO 10/17 641
FLASH FLOOD WATCH IN EFFECT THROUGH TUESDAY AFTERNOON

NATIONAL WEATHER SERVICE LAS VEGAS NV

43 PM PDT MON OCT 17 2005

CAZ028-181100-
/X.NEW.KVEF.FF.A.0001.051018T0000Z-051018T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO COUNTY DESERTS-

43 PM PDT MON OCT 17 2005

...FLASH FLOOD WATCH IN EFFECT THROUGH TUESDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A

* FLASH FLOOD WATCH FOR A PORTION OF SOUTHWEST CALIFORNIA...
INCLUDING THE FOLLOWING AREA...IN SOUTHWEST CALIFORNIA...SAN
BERNARDINO COUNTY DESERTS.

* THROUGH TUESDAY AFTERNOON

* A STRONG AREA OF LOW PRESSURE OFF THE COAST OF SOUTHERN
CALIFORNIA WILL SLOWLY PUSH TO THE EAST MOVING ON SHORE
OVERNIGHT. A MOIST UNSTABLE AIRMASS IS IN PLACE AHEAD OF THE LOW
ACROSS SAN BERNARDINO COUNTY. BANDS OF MODERATE TO HEAVY RAIN AND
SCATTERED THUNDERSTORMS WILL CONTINUE TO IMPACT MUCH OF SAN
BERNARDINO COUNTY... PARTICULARLY DURING THE OVERNIGHT HOURS.
THE COMBINATION OF MOIST UNSTABLE AIR AND THE SLOW MOVEMENT OF
THE STORM SYSTEM WILL RESULT IN AN INCREASED CHANCE FOR HEAVY
RAINFALL AND...LOCALIZED FLOODING.

* RAINFALL TOTALS WILL AVERAGE 1 TO 1.5 INCHES WITH LOCALIZED
AMOUNTS IN EXCESS OF 2 INCHES...PARTICULARLY ACROSS HIGHER
TERRAIN AND ALONG THE MORONGO BASIN.

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION
AND PERSONS IN THE WATCH AREA SHOULD BE ALERT TO THE POTENTIAL
FOR HEAVY RAINFALL AND BE PREPARED TO TAKE QUICK ACTION AND MOVE
TO HIGHER GROUND.

$$

AZZ002-003-036-CAZ029-NVZ016-018>022-181100-
/X.COR.KVEF.FF.A.0001.051018T0900Z-051019T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAKE HAVASU AND FORT MOHAVE-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-SAN BERNARDINO COUNTY-
UPPER COLORADO RIVER VALLEY-NORTHEAST CLARK COUNTY-SHEEP RANGE-
SPRING MOUNTAINS-RED ROCK CANYON-LAS VEGAS VALLEY-
SOUTHERN CLARK COUNTY-

43 PM PDT MON OCT 17 2005 /343 PM MST MON OCT 17 2005/

...FLASH FLOOD WATCH IN EFFECT FROM 2 AM PDT /2 AM MST/ TUESDAY
THROUGH TUESDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A

* FLASH FLOOD WATCH FOR PORTIONS OF NORTHWEST ARIZONA... SOUTHEAST
CALIFORNIA AND SOUTHERN NEVADA...INCLUDING THE FOLLOWING
AREAS...IN NORTHWEST ARIZONA...LAKE HAVASU AND FORT MOHAVE...AND
NORTHWEST DESERTS IN SOUTHEAST CALIFORNIA...SAN BERNARDINO
COUNTY-UPPER COLORADO RIVER VALLEY IN SOUTHERN NEVADA...LAKE
MEAD NATIONAL RECREATION AREA...LAS VEGAS VALLEY...SHEEP
RANGE...AND SPRING MOUNTAINS-RED ROCK CANYON.

* FROM 2 AM PDT /2 AM MST/ TUESDAY THROUGH TUESDAY AFTERNOON

* A STRONG AREA OF LOW PRESSURE OFF THE COAST OF SOUTHERN
CALIFORNIA WILL SLOWLY PUSH TO THE EAST MOVING ON SHORE
OVERNIGHT AND ACROSS SOUTHERN CALIFORNIA DURING THE MORNING
HOURS. A MOIST UNSTABLE AIRMASS IS IN PLACE AHEAD OF THE LOW
ACROSS SOUTHERN NEVADA AND NORTHWEST ARIZONA. BANDS OF MODERATE
TO HEAVY RAIN AND SCATTERED THUNDERSTORMS WILL CONTINUE TO
IMPACT MUCH OF SOUTHERN NEVADA AND MOHAVE COUNTY...PARTICULARLY
DURING THE EARLY MORNING HOURS ON TUESDAY THROUGH TUESDAY
AFTERNOON. THE COMBINATION OF MOIST UNSTABLE AIR AND THE SLOW
MOVEMENT OF THE STORM SYSTEM WILL RESULT IN AN INCREASED CHANCE
FOR HEAVY RAINFALL AND...LOCALIZED FLOODING.

* RAINFALL TOTALS WILL AVERAGE 0.5 TO 1.0 INCH WITH LOCALIZED
AMOUNTS IN EXCESS OF 2 INCHES...PARTICULARLY ACROSS HIGHER
TERRAIN AND IN AREAS WITH REPETITIVE CONVECTION.

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION
AND PERSONS IN THE WATCH AREA SHOULD BE ALERT TO THE POTENTIAL
FOR HEAVY RAINFALL AND BE PREPARED TO TAKE QUICK ACTION AND MOVE
TO HIGHER GROUND.

$$








EDIS-10-17-05 1545 PDT