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000
FXUS66 KHNX 201056
AFDHNX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
356 AM PDT MON MAY 20 2013

.SYNOPSIS...
HIGH PRESSURE WILL BUILD OVER CENTRAL CALIFORNIA TODAY WITH ABOVE
NORMAL TEMPERATURES AND MAINLY CLEAR SKIES. AN AREA OF LOW PRESSURE
WILL TAKE HOLD OVER THE PACIFIC NORTHWEST BY TUESDAY EVENING...AND
LINGER THROUGH AT LEAST THURSDAY. A STRENGTHENING ONSHORE FLOW WILL
BRING COOLER TEMPERATURES AND A FEW CLOUDS TO CENTRAL CALIFORNIA
WEDNESDAY AND THURSDAY.

&&

.DISCUSSION...
A SHORTWAVE RIDGE WILL BUILD INTO CENTRAL CA TODAY. A NEUTRAL TO
WEAK OFFSHORE FLOW WILL BRING CONTINUED WARMING TDY AS THE THERMAL
TROF SHIFTS TOWARD THE COAST. THIS WARMING WILL BE SHORTLIVED
HOWEVER AS AN UPPER TROF APPROACHES THE PACNW. THIS TROF IS FCST
TO STALL AND DEEPEN OVER THE PACNW. H5 HEIGHTS ARE FCST TO FALL
BELOW 550DM ALONG THE OR/WA BORDER WED. ACROSS CENTRAL CA...H85
TEMPS DROP 10-12 DEGS/C BY WED EVE. IN ADDN...THE SFO-LAS SFC GRAD
INCREASES TO 16-18 MB/S WED...FOR BREEZY CONDS IN THE SJV AND
WINDY IN THE MTNS/DESERTS...ESP THE TEHACHAPI MTNS THRU AND BELOW
PASSES AND CANYONS. MODELS CLOSE IN KEEPING ANY PRECIP WITH THIS
TROF MAINLY NORTH OF LK TAHOE...SO A DRY FCST THROUGHOUT.

THE UPPER LOW IS FCST TO GRADUALLY FILL BEGINNING FRI...HOWEVER
THE TROF AXIS ACROSS THE WEST COAST STATES REMAINS Q-STNRY THRU
THE WEEKEND. AS THE LOW WEAKENS A SLOW WARMUP IS SET TO BEGIN FRI
WITH TEMPS POSSIBLY RISING BACK TO NEAR NORMAL SUN AND/OR MON.


&&

.AVIATION...
VFR CONDITIONS WILL PREVAIL ACROSS THE CENTRAL CA INTERIOR.

&&

.AIR QUALITY ISSUES...
NONE.

&&

.CERTAINTY...

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

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.

&&

.CLIMATE...
             RECORDS
SITE DATE    HI_MAX:YEAR LO_MAX:YEAR HI_MIN:YEAR LO_MIN:YEAR

KFAT 05-20      102:1947     61:1921     71:1897     44:1962
KFAT 05-21      104:1892     56:1933     69:2001     42:1975
KFAT 05-22      104:1967     67:2010     71:1892     43:1909

KBFL 05-20      103:1942     65:1923     70:2001     42:1902
KBFL 05-21      103:1988     65:1903     71:2001     42:1902
KBFL 05-22      102:2001     68:2010     73:1967     36:1903
&&

.HNX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

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

WEATHER.GOV/HANFORD