Flash Flood Watch 2, NWS Hanford, CA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
253 PM PDT MON JUL 4 2011

.SYNOPSIS...
HIGH PRESSURE OVER THE DESERT SOUTHWEST WILL PREVAIL OVER THE
REGION  FOR THE NEXT SEVERAL DAYS. TRIPLE DIGIT HEAT WILL
CONTINUE OVER THE SAN JOAQUIN VALLEY...THE ADJACENT LOWER
FOOTHILLS...AND HIGH DESERT UNTIL LATE THIS WEEK. MOISTURE FROM
THE SOUTHEAST WILL ARRIVE TODAY AS THE FIRST MONSOON EPISODE OF
THE SEASON BEGINS TODAY. THIS WILL BRING INCREASING THUNDERSTORM
CHANCES OVER THE MOUNTAIN AND DESERT AREAS AND EVEN A SMALL THREAT
OF THUNDERSTORMS TO THE WESTERN KERN...KINGS AND FRESNO COUNTY
MOUNTAINS ON TUESDAY.

&&

.DISCUSSION...MODELS AND WATER VAPOR PIX SHOW AN INVERTED TROF
VERY SLOWLY APPROACHING FROM THE EAST. THIS TROF WILL BE THE FOCUS
OF INCREASING TSTM ACTIVITY ACROSS CENTRAL CA...ESP TUES AND WED.
MOST IMPRESSIVE SOUNDING OUT OF SAN DIEGO THIS MORNING WITH A
PW VALUE OF 1.86 INCHES. THIS DEEPER MOISTURE WILL MOVE FARTHER
WEST TONITE AND EARLY TUES...WITH MOISTURE EVEN WORKING NW ALONG
THE COASTAL RANGES.

THIS IS A RATHER STRONG MONSOON SURGE FOR CENTRAL CA FOR SO EARLY
IN THE SEASON. STEERING CURRENTS OVER THE NEXT 2 DAYS ARE GOING TO
BE FAIRLY LIGHT...THUS TSTMS WILL HAVE THE OPPORTUNITY TO DROP
COPIOUS AMOUNTS OF RAIN. WITH THIS...ISSUED A FLASH FLOOD WATCH
TUES AFTERNOON AND EVE FOR THE MTNS/DESERTS FROM SEQUOIA PARK
SOUTH AS THIS WILL BE THE AREA WITH MOST NUMEROUS STORMS. THE FLOW
WILL BE CONDUCIVE TO ALLOW SOME TSTMS TO DRIFT OUT INTO THE
SJV...ESP THE SOUTH END...AND THE WEST SIDE ALONG AND WEST OF
I-5.

DEBRIS CLOUDS WILL BE PROBLEMATIC THE NEXT FEW DAYS AS WELL...AND
WILL AFFECT TEMPS TO SOME DEGREE. DAYTIME HIGHS COULD BE LOWERED A
FEW DEGREES IF ENOUGH CLOUDS LINGER THRU THE DAY...AND CONVERSELY
NIGHTTIME MINS COULD REMAIN ON THE WARM AND MUGGY SIDE WITH ANY
CLOUD COVER. TRENDED TEMPS TO THESE CONDS JUST A BIT.

MODELS ARE QUITE SIMILAR IN RELATIVELY LITTLE CHANGE INTO THURS OR
FRI. A COUPLE OF SHORTWAVE TROFS MOVING INTO AND ACROSS THE PAC
NW BY THE END OF THE WEEK...MAY BE JUST ENOUGH TO TURN THE FLOW
ALOFT OVER CENTRAL CA TO THE SOUTHWEST...ALBEIT FAIRLY
LIGHT...BUT AT LEAST PUSH THE DEEPER MONSOON MOISTURE BACK TO THE
EAST. CONTINUED PREVIOUS FCSTS OF GRADUALLY DECREASING TSTMS
FRI...THEN CONFINED TO THE SIERRA CREST BY SUN OR MON.

TEMPS WILL ALSO DECREASE A LITTLE OVER TIME...BUT ONLY TO CLIMO.
THE EXCEPTION COULD BE ANY INFLUX OF MARINE AIR INTO THE SJV BY
NEXT WEEKEND. HOWEVER MODELS ARENT TOO HOPEFUL WITH THIS
HAPPENING...SO BASED ANY COOLING ON SYNOPTIC SCALE FEATURES SAT
AND BEYOND.

&&

.AVIATION...
ISOLATED THUNDERSTORMS CAN BE EXPECTED OVER THE KERN COUNTY
MOUNTAINS AND DESERTS IN ADDITION TO THE HIGHER ELEVATIONS OF
THE SOUTHERN SIERRA NEVADA WITH COVERAGE BECOMING SCATTERED BY 20Z
TUE. OTHERWISE...VFR CONDITIONS WILL PREVAIL ACROSS THE CENTRAL CA
INTERIOR THRU 00Z WED.

&&

.AIR QUALITY ISSUES...
ON MONDAY JULY 4 2011... UNHEALTHY IN FRESNO... KERN AND TULARE
COUNTIES. UNHEALTHY FOR SENSITIVE GROUPS IN KINGS COUNTY.
FURTHER INFORMATION IS AVAILABLE AT VALLEYAIR.ORG

&&

.HNX WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING
CAZ095-097>099.

FLOOD ADVISORY UNTIL FURTHER NOTICE FOR SAN JOAQUIN VALLEY RIVERS
NORTH OF KERN COUNTY CAC019-031-039-047-107.

&&

PUBLIC...BINGHAM
AVN/FW...DS
SYNOPSIS...WP

WEATHER.GOV/HANFORD

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
512 AM PDT MON JUL 4 2011

CAZ089>094-051215-
WEST CENTRAL SAN JOAQUIN VALLEY-EAST CENTRAL SAN JOAQUIN VALLEY-
SOUTHWESTERN SAN JOAQUIN VALLEY-SOUTHEASTERN SAN JOAQUIN VALLEY-
MARIPOSA MADERA AND FRESNO COUNTY FOOTHILLS-
TULARE COUNTY FOOTHILLS-
512 AM PDT MON JUL 4 2011

...FLOOD ADVISORY BELOW RESERVOIRS...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE CENTRAL AND SOUTHERN
SAN JOAQUIN VALLEY AND THE ADJACENT FOOTHILLS.

.DAY ONE...TODAY AND TONIGHT

A FLOOD ADVISORY REMAINS IN EFFECT FOR AREA RIVERS IN THE SAN
JOAQUIN VALLEY NORTH OF KERN COUNTY...DUE TO HIGH RELEASES FROM
FOOTHILL DAMS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THE FLOOD ADVISORY FOR AREA RIVERS IN THE VALLEY NORTH OF KERN
COUNTY WILL REMAIN IN EFFECT UNTIL FURTHER NOTICE.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION IS NOT ANTICIPATED.

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT OR
UNUSUAL CONDITIONS TO THE NATIONAL WEATHER SERVICE.

CAZ098-099-051215-
INDIAN WELLS VALLEY-SOUTHEASTERN KERN COUNTY DESERT-
512 AM PDT MON JUL 4 2011

...THUNDERSTORMS POSSIBLE BY THIS AFTERNOON...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE KERN COUNTY DESERTS.

.DAY ONE...TODAY AND TONIGHT

ISOLATED THUNDERSTORMS ARE POSSIBLE BEGINNING THIS AFTERNOON
THROUGH TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE TUESDAY THROUGH
THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION IS NOT ANTICIPATED.

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT OR
UNUSUAL CONDITIONS TO THE NATIONAL WEATHER SERVICE.

DUDLEY