Severe Thunderstorm Warning 3, NWS Hanford, CA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
245 PM PDT THU AUG 30 2007

.DISCUSSION...
MONSOON MOISTURE LIFTING NORTHWARD AROUND THE UPPER RIDGE THAT IS
OVER THE FOUR CORNERS AREA PROVIDED FOR SHOWERS AND THUNDERSTORMS
ACROSS THE FORECAST AREA. THE BEST ISENTROPIC UPGLIDE IN
ASSOCIATION WITH THE MID LEVEL DISTURBANCE THAT MOVED THROUGH HAS
RELAXED NOW AND THE DEEP LEVEL MOISTURE HAS BEGUN TO BECOME MORE
SHALLOW FROM THE KERN COUNTY AREA SPREADING NORTH. WOULD EXPECT
THE CLEARING SKIES TO CONTINUE THIS EVENING WITH ONLY A MENTION OF A
FEW SHOWERS FROM FRESNO COUNTY NORTHWARD. THE ONLY CONCERN WOULD
BE THE CONVECTIVE PARAMETERS ARE INDICATING INSTABILITY ACROSS
THE REGION THIS AFTERNOON WITH LI VALUES 0 TO -2 AND CAPES AROUND
600 J/KG. THE ONLY INHIBITOR IS THE MID LEVEL CAP THAT IS
DEVELOPING BEHIND THE UPPER AIR SYSTEM THAT IS MOVING THROUGH.
RESIDUAL MOISTURE WILL ALSO PLAY A FACTOR IN CLOUDS DEVELOPING THIS
AFTERNOON.

THINGS WILL CLEAR OUT TONIGHT AND REMAIN CLEAR FOR THE NEXT
SEVERAL DAYS. ONLY ISOLATED THUNDER ALONG THE CREST CAN BE
EXPECTED ON FRIDAY AND POSSIBLY INTO SAT. WITH THE RIDGE EXPECTED
TO BUILD IN OVER THE AREA TEMPERATURES ARE FORECAST TO REACH NEAR
RECORD LEVELS ACROSS SEVERAL LOCATIONS ON FRIDAY.

THE RIDGE IS EXPECTED TO REMAIN OVER THE AREA THROUGH TUESDAY WITH
TEMPERATURES REMAINING WELL ABOVE NORMAL THROUGH THE PERIOD. AN
UPPER TROUGH WILL ENTER THE PAC NW LATE ON TUESDAY AND BRING IN A
TROUGH OF LOW PRESSURE INTO THE WEST COAST BY TUESDAY NIGHT. THE
UPPER LOW LOOKS TO BE VERY PROGRESSIVE AND REMAINS WELL NORTH OF
THE REGION AND MAY NOT HAVE A SIGNIFICANT IMPACT ON TEMPERATURES
AS PREVIOUSLY THOUGHT. THE ECMWF WIS NOT BUDGING THE RIDGE VERY
MUCH OVER THE REGIONS AND WOULD TEND TO KEEP TEMPS UP...ONLY
SLIGHTLY ABOVE NORMAL AS OPPOSED TO THE HEAT WAVE WE ARE
EXPERIENCING.

THE GFS IS DOING SOME VERY INTERESTING THINGS WITH A POSSIBLE
TROPICAL FEATURE THAT DEVELOPS BY WED NIGHT AND MOVES RAPIDLY UP
THE COAST OF BAJA ON THURSDAY AND INTO EXTREME SRN CA BY LATE
THURSDAY NIGHT. WILL TREND TEMPS TOWARDS CLIMO THROUGH THE LATER
PART OF THE EXTENDED AND KEEP THINGS DRY.

&&

.AVIATION...SCATTERED SHOWERS AND THUNDERSTORMS NORTH OF KERN
COUNTY WILL GRADUALLY DISSIPATE THROUGH THIS AFTERNOON AND
EVENING. PRECIPITATION WILL END OVER THE CENTRAL SAN JOAQUIN
VALLEY BY 01Z AND BY AROUND 03Z OVER THE SOUTHERN SIERRA NEVADA.
OTHERWISE...VFR CONDITIONS CAN BE EXPECTED THROUGH 00Z SATURDAY.

FOR SPECIFIC DETAILS...PLEASE REFER TO THE TAFS FOR KMCE...KFAT AND
KBFL...AND TWEB ROUTES 421 AND 423.

&&

.AIR QUALITY ISSUES...
NONE.

&&

.HNX WATCHES/WARNINGS/ADVISORIES...
HEAT ADVISORY UNTIL 7 PM PDT SATURDAY FOR CAZ089>094.

&&

AVN/FW...DCH
PUBLIC...JDB

WEATHER.GOV/HANFORD

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
605 AM PDT THU AUG 30 2007

CAZ089>094-311315-
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-
605 AM PDT THU AUG 30 2007

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

.DAY ONE...TODAY AND TONIGHT

ISOLATED THUNDERSTORMS WILL CONTINUE THROUGH THE MORNING.

A HEAT ADVISORY IS IN EFFECT FOR TODAY FROM 2 PM UNTIL 7 PM.
PLEASE REFER TO THE LATEST WEATHER MESSAGE ISSUED BY THE NATIONAL
WEATHER SERVICE OFFICE IN HANFORD AT /WWUS76 KHNX/ OR /SFONPWHNX/
FOR FURTHER DETAILS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A HEAT ADVISORY CONTINUES FOR FRIDAY AND SATURDAY FROM 2 PM UNTIL
7 PM EACH DAY. PLEASE REFER TO THE LATEST WEATHER MESSAGE ISSUED BY
THE NATIONAL WEATHER SERVICE OFFICE IN HANFORD AT /WWUS76 KHNX/ OR
/SFONPWHNX/ FOR FURTHER DETAILS.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS TO THE SAN JOAQUIN VALLEY NATIONAL WEATHER SERVICE
OFFICE.

WEATHER.GOV/HANFORD

CAZ098-099-311315-
INDIAN WELLS VALLEY-SOUTHEASTERN KERN COUNTY DESERT-
605 AM PDT THU AUG 30 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE KERN COUNTY DESERTS.

.DAY ONE...TODAY AND TONIGHT

ISOLATED THUNDERSTORMS WILL CONTINUE THROUGH THE MORNING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS TO THE SAN JOAQUIN VALLEY NATIONAL WEATHER SERVICE
OFFICE.

WEATHER.GOV/HANFORD

JEB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY CA
416 PM PDT THU AUG 30 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0355 PM     LIGHTNING        VISALIA                 36.33N 119.32W
08/30/2007                   TULARE             CA   LAW ENFORCEMENT

            CHP REPORTS THAT A POWER POLE WAS HIT BY LIGHTNING. POWER
            LINES WERE SPARKING NEARBY. HAPPENED IN THE SR 99 AND
            MERRITT DRIVE AREA. NO FURTHER DETAILS.

&&

STACHELSKI