Wind Advisory 29, NWS Hanford, CA

309 
WWUS76 KHNX 220604
NPWHNX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HANFORD CA
1104 PM PDT THU JUN 21 2012

...WIND ADVISORY ALLOWED TO EXPIRE...

CAZ089-091-220715-
/O.EXP.KHNX.WI.Y.0029.000000T0000Z-120622T0600Z/
WEST CENTRAL SAN JOAQUIN VALLEY-SOUTHWESTERN SAN JOAQUIN VALLEY-
1104 PM PDT THU JUN 21 2012

...WIND ADVISORY WILL EXPIRE AT 11 PM PDT THIS EVENING FOR THE
WEST SIDE OF THE SAN JOAQUIN VALLEY...

THE WIND ADVISORY FOR THE WEST SIDE OF THE SAN JOAQUIN VALLEY
WILL EXPIRE AT 11 PM PDT THIS EVENING FOR THE WEST SIDE OF THE
SAN JOAQUIN VALLEY. BREEZY CONDITIONS CONTINUE IN THE WEST SIDE OF
THE VALLEY. HOWEVER WINDS HAVE DIMINISHED BELOW ADVISORY LEVELS. 
HENCE THE WIND ADVISORY WILL BE ALLOWED TO EXPIRE.  


$$


WEATHER.GOV/HANFORD

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
336 PM PDT THU JUN 21 2012

.SYNOPSIS...
AFTER A PERIOD OF HIGH PRESSURE AND WARM TEMPERATURES...A FAIRLY
STRONG LOW PRESSURE SYSTEM IS EXPECTED TO BRING SIGNIFICANT COOLING
TO THE AREA ON FRIDAY AND INTO EARLY NEXT WEEK. AFTERWARD...GRADUAL
WARMING WILL TAKE PLACE AS HIGH PRESSURE NUDGES INTO THE REGION.

&&

.DISCUSSION...TODAY IS OFFICIALLY THE FIRST FULL DAY OF SUMMER AND
IT IS TURNING INTO A SCORCHER THROUGHOUT A GOOD PORTION OF THE SAN
JOAQUIN VALLEY...LOWER FOOTHILLS AND THE KERN COUNTY DESERT THIS
AFTERNOON. THERMOMETER READINGS WILL TOP THE CENTURY MARK IN THE
HOTTEST LOCATIONS THIS AFTERNOON BUT IT WILL BE THE LAST TIME HIGH
TEMPS REACH THE TRIPLE DIGITS IN OUR CWA DURING THE NEXT 7 DAYS.
A REFRESHINGLY COOLER AIRMASS WILL INVADE THE CENTRAL CA INTERIOR
DURING THE NEXT 24 HOURS. OCEAN-COOLED AIR HAS BEEN FLOWING RATHER
BRISKLY THROUGH THE COASTAL GAPS SINCE THIS MORNING WHERE TEMPS ARE
10 TO AS MUCH AS 27 DEGREES LOWER THAN YESTERDAY AFTERNOON. IN FACT...
WESTERLY WINDS HAVE GUSTED AS HIGH AS 41 MPH THROUGH PACHECO PASS
TODAY. THE MARINE LAYER ALONG THE CENTRAL CA COAST HAS DEEPENED TO
NEARLY 2500 FEET AT FORT ORD AND WILL LIKELY DEEPEN A BIT MORE DURING
THE NEXT 36 HRS.

IN THE BROADER PICTURE...THE UPPER LEVEL RIDGE THAT HAS BEEN BRINGING
ABOVE NORMAL TEMPS TO MUCH OF THE CWA LATELY IS CENTERED OVER THE
FOUR CORNERS REGION WHILE AN UNUSUALLY DEEP UPPER LEVEL LOW IS
POSITIONED OFF THE BRITISH COLUMBIA COAST. THE MODELS BRING THIS
LOW SOUTHWARD THEN ANCHOR IT OFF THE PAC NW COAST FROM FRIDAY AFTN
THROUGH THE WEEKEND. DURING THIS TIME...A SOUTHWESTERLY FLOW ALOFT
WILL PREVAIL OVER THE CENTRAL CA INTERIOR WHILE A MODERATELY STRONG
ONSHORE FLOW CONTINUES IN THE LOW LEVELS. THE ONSHORE FLOW WILL BE
STRONG ENOUGH TO GENERATE SOME BLOWING DUST ON THE WEST SIDE OF THE
SJ VLY THIS EVENING WHERE A WIND ADVISORY HAS BEEN ISSUED. THERE IS
A GOOD POSSIBILITY THAT THE MARINE LAYER ALONG THE COAST WILL DEEPEN
TO 3K FEET OR MORE BY THE START OF THIS WEEKEND. IF SO...THE ONSHORE
FLOW WILL BRING SOME LOW STRATUS INTO THE SJ VLY...LOWER FOOTHILLS
AND THE NORTH AND WEST FACING SLOPES OF THE TEHACHAPI MOUNTAINS BY
SATURDAY MORNING. GUSTY WINDS WILL ALSO OCCUR THROUGH AND BELOW THE
MOUNTAIN PASSES OF KERN COUNTY THROUGH THE WEEKEND BUT WILL REMAIN
BELOW ADVISORY LEVELS IN MOST AREAS.

THE BIG STORY...HOWEVER...WILL BE THE CHANGE TO COOLER WEATHER
ACROSS THE CENTRAL CA INTERIOR. THE CHANGE WILL BE MOST DRAMATIC
IN THE SJ VLY AND LOWER FOOTHILLS DURING THE NEXT 24 HOURS. IN
THIS REGION...TEMPERATURES FRIDAY AFTERNOON WILL BE A GOOD 10 TO
15 DEGREES COOLER THAN THIS AFTERNOON. OVER THE HIGHER TERRAIN...
THE CHANGE WILL BE MORE SUBTLE...BUT NONETHELESS REFRESHING.
BEYOND FRIDAY...TEMPERATURES WILL COOL SLIGHTLY EACH DAY THROUGH
MONDAY...DURING WHICH TIME THE UPPER LEVEL TROUGH WILL MOVE INLAND.
MINIMUM TEMPERATURES COULD BE AS LOW AS THE UPPER 40S IN THE COOLEST
LOCATIONS OF THE SJ VLY THIS WEEKEND...INCLUDING MONDAY MORNING.
AFTERWARD...A GRADUAL DAY TO DAY MODERATION IS EXPECTED AS THE
UPPER LEVEL TROUGH LIFTS NORTHWARD AND THE FOUR CORNERS RIDGE TRIES
TO BUILD WESTWARD. NONETHELESS...TEMPERATURES MAY NOT RECOVER TO
NEAR NORMAL UNTIL NEXT THURSDAY.

&&

.AVIATION...
VFR CONDITIONS WILL PREVAIL ACROSS THE CENTRAL CA INTERIOR THRU
00Z SAT UNDER CLEAR SKIES.

&&

.AIR QUALITY ISSUES...
ON THURSDAY JUNE 21 2012... UNHEALTHY FOR SENSITIVE GROUPS IN
FRESNO... KERN... MADERA AND TULARE COUNTIES AND SEQUOIA NATIONAL
PARK AND FOREST.
FURTHER INFORMATION IS AVAILABLE AT VALLEYAIR.ORG

&&

.CERTAINTY...

THE LEVEL OF CERTAINTY FOR DAYS 1 AND 2 IS HIGH.
THE LEVEL OF CERTAINTY FOR DAYS 3 THROUGH 7 IS MEDIUM.

THIS INFORMATION IS PROVIDED AS PART OF A TRIAL PROJECT CONDUCTED
BY THE NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD.
CERTAINTY LEVELS INCLUDE LOW...MEDIUM...AND HIGH. PLEASE VISIT
WWW.WEATHER.GOV/HNX/CERTAINTY.PHP /ALL LOWER CASE/ FOR ADDITIONAL
INFORMATION AND/OR TO PROVIDE FEEDBACK.

&&

.HNX WATCHES/WARNINGS/ADVISORIES...
WIND ADVISORY FOR THE WEST SIDE OF THE SAN JOAQUIN VALLEY UNTIL
11 PM PDT THURSDAY.

&&

PUBLIC...DURFEE
AVN/FW...BEAN
SYNOPSIS...BSO

WEATHER.GOV/HANFORD