Wind Advisory 28, NWS Hanford, CA

332 
WWUS76 KHNX 200854
NPWHNX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HANFORD CA
154 AM PDT WED JUN 20 2012

CAZ095-099-201000-
/O.EXP.KHNX.WI.Y.0028.000000T0000Z-120620T0900Z/
KERN COUNTY MOUNTAINS-SOUTHEASTERN KERN COUNTY DESERT-
154 AM PDT WED JUN 20 2012

...WIND ADVISORY WILL EXPIRE AT 2 AM PDT EARLY THIS MORNING...

THE WIND ADVISORY WILL EXPIRE AT 2 AM PDT EARLY THIS MORNING FOR
THE KERN COUNTY MOUNTAINS AND THE SOUTHEASTERN KERN COUNTY
DESERT. 

WINDS HAVE DIMINISHED THROUGH THE TEHACHAPI PASS TO LEVELS BELOW
ADVISORY SPEEDS.

$$

DUDLEY

WEATHER.GOV/HANFORD

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
857 PM PDT TUE JUN 19 2012

.SYNOPSIS...
HIGH PRESSURE WILL BRIEFLY RETURN TO THE REGION...A REBOUND IN
TEMPERATURES IS EXPECTED ON WEDNESDAY AND THURSDAY. MUCH COOLER
TEMPERATURES ARE IN STORE FOR FRIDAY AND THE WEEKEND DUE TO A
STRONGER LOW PRESSURE SYSTEM OVER THE AREA.

&&

.DISCUSSION...
FORECAST LOOKS ON TRACK THIS EVENING. TRENDS ARE STILL DOWN OVER
THE SOUTHERN AND CENTRAL SJV ATTM WITH TRENDS ACTUALLY UP ACROSS
THE NRN SJV. UPPER LEVEL RIDGE OF HIGH PRESSURE OVER NRN BAJA WILL
BUILD NORTHWARD ON WED AND THURSDAY IN RESPONSE TO A CLOSED LOW
CENTER OFF THE CA COAST. TEMPS ARE EXPECTED TO RISE ONCE AGAIN
TOMORROW AS THE RIDGE BUILDS BACK. THE CLOSED LOW OFF THE COAST
WILL OPEN UP AND MOVE INLAND FRI WITH BREEZY CONDITIONS DEVELOPING
AND COOLER TEMPS MOVING IN AS WELL AND WILL CONTINUE OVER THE
WEEKEND.

&&

.PREV DISCUSSION... /ISSUED 151 PM PDT TUE JUN 19 2012/

DISCUSSION...THE HIGH PRESSURE RIDGE THAT BROUGHT RIDICULOUSLY HOT
WEATHER TO THE SJ VLY...LOWER FOOTHILLS AND THE KERN COUNTY DESERT
LAST WEEKEND HAS BEEN SUPPRESSED...BUT ONLY TEMPORARILY...BY AN UPPER
LEVEL TROUGH CURRENTLY OVER THE PAC NW. THE TROUGH BROUGHT AT LEAST
A FEW DEGREES OF SYNOPTIC COOLING TO THE CWA TODAY. THE COOL DOWN IS
MORE NOTICEABLE IN THE SJ VLY AND LOWER FOOTHILLS...HOWEVER...THANKS
TO AN ONSHORE INFLUX OF MARINE AIR LAST NIGHT.

TEMPERATURE TRENDS WILL REVERSE BY LATE TONIGHT AS THE UPPER LEVEL
RIDGE OVER NORTHERN BAJA BEGINS TO FLEX ITS MUSCLE. BY DAYBREAK...
THE ONSHORE FLOW WILL BE CONSIDERABLY WEAKER AND THE MARINE LAYER
ALONG THE COAST WILL MOST LIKELY BE SHALLOWER. THE HIGH PRESSURE
RIDGE WILL CONTINUE TO BUILD OVER THE CWA WEDNESDAY AND BY THE TIME
SUMMER OFFICIALLY BEGINS AT 4:09 PM PDT...THERMOMETER READINGS WILL
AGAIN BE FLIRTING WITH THE CENTURY MARK IN THE SJ VLY...LOWER
FOOTHILLS AND THE KERN COUNTY DESERT.

THE GOOD NEWS IS THAT TRIPLE DIGIT HIGH TEMPS IN THE SJ VLY WILL BE
SHORT-LIVED. ON THURSDAY...THE HIGH PRESSURE RIDGE WILL BE NUDGED
EASTWARD BY THE APPROACH OF AN UPPER LEVEL TROUGH OVER THE EASTERN
PACIFIC. CONSEQUENTLY...THE ONSHORE FLOW WILL STRENGTHEN THURSDAY
AFTERNOON AND BEGIN TO BRING OCEAN-COOLED AIR INTO THE NORTHERN PART
OF THE SJ VLY...PARTICULARLY THROUGH AND BELOW PACHECO PASS.
HOWEVER...MUCH OF THE REST OF THE SJ VLY AND LOWER FOOTHILLS WILL
REMAIN RELATIVELY HOT THURSDAY AFTERNOON.

THE MODELS ARE IN GOOD AGREEMENT AND FORECAST THE UPPER LEVEL TROUGH
TO SLOWLY DEEPEN AND MOVE INLAND FRIDAY THROUGH MONDAY. A DAY TO
DAY COOLING TREND CAN BE EXPECTED DURING THIS PERIOD WITH A HEALTHY
ONSHORE FLOW. AN INCREASE IN WIND MIGHT RENEW THE FIRE DANGER IN THE
KERN COUNTY MOUNTAINS AND DESERT FRIDAY BEFORE HUMIDITIES CAN RECOVER
THIS WEEKEND. WINDS MIGHT ALSO BREACH ADVISORY LEVELS THROUGH AND BELOW
THE KERN COUNTY MOUNTAIN PASSES FRIDAY INTO THE WEEKEND. OTHERWISE...
A REFRESHINGLY COOLER CHANGE IN THE WEATHER IS IN STORE FOR THE CENTRAL
CALIFORNIA INTERIOR LATER THIS WEEK. UNTIL THE UPPER LEVEL TROUGH
WEAKENS AND LIFTS OUT OF CA NEXT TUES...TEMPERATURES IN THE 4 TO 7
DAY PERIOD WILL AVERAGE SLIGHTLY TO MUCH BELOW NORMAL THROUGHOUT THE
CWA. OTHERWISE...THE PATTERN WILL REMAIN DRY FOR THE FORESEEABLE FUTURE.

&&

.AVIATION...
VFR CONDITIONS WILL PREVAIL ACROSS THE CENTRAL CA INTERIOR THRU 06Z
THU.

&&

.AIR QUALITY ISSUES...
ON WEDNESDAY JUNE 20 2012... UNHEALTHY FOR SENSITIVE GROUPS IN
FRESNO 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 MEDIUM.
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...
NONE.
&&

PUBLIC...JDB
PREVIOUS DISCUSSION...KD
AVN/FW...MV
SYNOPSIS...JDB

WEATHER.GOV/HANFORD