Flash Flood Warning 88, NWS San Diego, CA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
200 PM PDT WED OCT 27 2004

.SYNOPSIS..MAIN FRONTAL SYSTEM HAS MOVED EAST OF THE AREA. SHOWERS
AND ISOLATED THUNDERSTORMS WERE DEVELOPING AND MOVING THROUGH THE
AREA THIS AFTERNOON. THEY WILL CONTINUE TO MOVE THROUGH THE AREA
THROUGH THURSDAY. HIGH PRESSURE ALOFT WILL MOVE OVER THURSDAY
THROUGH SATURDAY. A TROUGH WILL DEEPEN...WEAKENING HIGH PRESSURE
OVER THE AREA SUNDAY. HIGH PRESSURE ALOFT WILL INCREASE MONDAY
THROUGH WEDNESDAY. OFFSHORE WINDS ARE FORECAST TO DEVELOP TUESDAY
INTO WEDNESDAY.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES.

AREA OF THUNDERSTORMS NEAR NORTHERN SAN CLEMENTE ISLAND APPEARS TO
BE MOVING TOWARD THE BORDER OF ORANGE AND SAN DIEGO COUNTIES. THEY
SHOULD MOVE INTO THE COAST BY ABOUT 4 PM. FRONT HAS EXITED THE AREA
EXCEPT FOR FAR SE SAN DIEGO COUNTY. COMA CLOUD MOVING INTO THE COAST
CURRENTLY WITH SHOWERS AND ISOLATED THUNDERSTORMS...CONTINUING THRU
THU. MAY GET A FUNNEL CLOUD OR WATERSPOUT OUT OF IT. UPPER LEVEL LOW
WILL MOVE THROUGH TO THE NORTH TONIGHT AND THURSDAY. CROSS SECTION
SHOWS DEEP LAYER OF HIGH RELATIVE HUMIDITY UP TO 500 MB THROUGH THU
AFTERNOON...THEN IT DROPS RAPIDLY TO A LOW LEVEL BY FRI MORNING.
EXPECT FOG TO DEVELOP NIGHTS AND MORNINGS THROUGH FRI AM. THE MARINE
LAYER WILL DEVELOP BY SUN. HIGH PRESSURE GRADUALLY INCREASES OVER
THE AREA THU THROUGH SAT. A TROUGH WILL DEEPEN OVER THE
ROCKIES...WEAKENING HIGH PRESSURE OVER THE AREA. HIGH PRESSURE
INCREASES MON THROUGH WED. OFFSHORE FLOW BEGINS TO DEVELOP ON TUE
AND INCREASES WED FOR SOME LOCAL GUSTY NORTHEAST WINDS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH...SEE LAXFFASGX.
WINTER STORM WARNING...SEE LAXWSWSGX.
HAZARDOUS WEATHER OUTLOOK...SEE LAXHWOSGX.
MARINE WEATHER STATEMENT...SEE LAXMWSSGX.
RIVER STATEMENT...SEE LAXRVSSGX.
RIVER FLOOD STATEMENT...SEE LAXFLWSGX

&&

WHITLOW

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN DIEGO CA
730 AM PDT WED OCT 27 2004

CAZ042-043-048-050-055>058-060>062-PZZ750-PZZ775-281300-
ORANGE COUNTY COASTAL AREAS-
SAN DIEGO COUNTY COASTAL AREAS-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY VALLEYS-
SAN BERNARDINO COUNTY MOUNTAINS-
RIVERSIDE COUNTY MOUNTAINS-
SANTA ANA MOUNTAINS AND FOOTHILLS-
SAN DIEGO COUNTY MOUNTAINS-
APPLE AND YUCCA VALLEYS-
COACHELLA VALLEY-
SAN DIEGO COUNTY DESERTS-
COASTAL WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER AND OUT 30
NM-
WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO 60
NM OUT INCLUDING SAN CLEMENTE ISLAND-
730 AM PDT WED OCT 27 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR
ALL OF EXTREME SOUTHWESTERN CALIFORNIA.

.DAY ONE... TODAY AND TONIGHT.

FLASH FLOOD WATCH UNTIL 200 AM THURSDAY FOR ALL AREAS EXCEPT DESERTS.
FLASH FLOOD WATCH UNTIL 600 PM TODAY FOR THE APPLE AND YUCCA VALLEYS.
WINTER STORM WARNING UNTIL 200 PM THURSDAY FOR ALL MOUNTAINS EXCEPT
SANTA ANA MOUNTAINS AND FOOTHILLS.

HEAVY RAIN WILL TAPER OFF FROM WEST TO EAST THIS MORNING WITH
RAINFALL TOTALS OF 1 TO 2 INCHES. BEHIND THE MAIN BAND OF RAIN SOME
HEAVY SHOWERS COULD BRING ADDITIONAL LOCAL FLOODING TODAY AND
TONIGHT...ESPECIALLY IN AND BELOW THE RECENTLY BURNED AREAS.

THUNDERSTORMS ARE POSSIBLE TODAY AND TONIGHT. THUNDERSTORMS CONTAIN
DEADLY LIGHTNING...BRIEF HEAVY RAIN...STRONG GUSTY WINDS...HAIL AND
POSSIBLY FUNNEL CLOUDS.

SNOW IS EXPECTED AT THE HIGHER ELEVATIONS...GENERALLY ABOVE 5000 FT.
SNOWFALL AMOUNTS MAY EXCEED ONE FOOT.

STRONG GUSTY WINDS WILL BE POSSIBLE...MAINLY OVER THE MOUNTAINS AND
DESERTS.

SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS WILL CONTINUE OVER THE
COASTAL WATERS TODAY. FUNNEL CLOUDS AND WATER SPOUTS WILL ALSO BE
POSSIBLE TODAY ASSOCIATED WITH THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

FLASH FLOOD WATCH UNTIL 200 AM THURSDAY FOR ALL AREAS EXCEPT DESERTS.

SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS ENDING DURING THURSDAY
MORNING...WITH SNOW SHOWERS ABOVE 5000 FEET.

OTHERWISE NO SIGNIFICANT WEATHER IS EXPECTED AT THIS TIME.

MM