Drought in California, July 1 to 31, 2014

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
356 PM PDT MON JUN 30 2014

.UPDATE...
UPDATED AIR QUAULITY ISSUE SECTION.

&&

.SYNOPSIS...
HIGH PRESSURE OVER THE REGION WILL BRING ABOVE NORMAL TEMPERATURES
AND MAINLY CLEAR SKIES THIS WEEK.

&&

.AVIATION...
A SLIGHT CHANCE OF THUNDERSTORMS NEAR THE CREST OF THE SIERRA NEVADA
AFTER 18Z TUESDAY. OTHERWISE...VFR CONDITIONS WILL PREVAIL OVER THE
AREA DURING THE NEXT 24 HOURS.

&&

.PREV DISC... /ISSUED 310 PM PDT MON JUN 30 2014/

DISCUSSION...STRENGTHENING UPPER RIDGE OVER THE AREA PROVIDING
HOTTER TEMPS TODAY AS EXPECTED. 24 HOUR TRENDS SHOW MUCH OF THE
CENTRAL AND SOUTHERN SAN JOAQUIN VALLEY UP 5 TO 8 DEGREES. A FEW
POCKETS IN THE FOOTHILLS AND MOUNTAINS ARE IN EXCESS OF 10 DEGREES
WARMER. THERE IS A BAND OF MID/HIGH CLOUDS MOVING NORTHEAST OVER
THE CENTRAL SJV FROM A WEAK DISTURBANCE OFFSHORE...BUT THEY ARE
RELATIVELY THIN AND FAST MOVING AND DO NOT THINK WILL IMPEDE THE
WARMING. STILL THINK MUCH OF THE VALLEY WILL TOP OUT AROUND 105.

THE RIDGE AXIS WILL BEGIN TO SHIFT JUST EAST OVER THE GREAT BASIN
ON TUESDAY AS A WEAK TROUGH APPROACHES THE PACNW COAST. DO NOT SEE
MUCH CHANGE IN 850 MB TEMPS AND THE BLENDED GUIDANCE SUGGESTS VERY
SIMILAR TEMPERATURES TO TODAY. A FEW AREAS MAY CLIMB A DEGREE OR
TWO ON TUESDAY AS IT WILL START OFF WARMER THAN THIS MORNING. THE
WEAK TROUGH WILL MOVE OVER NORCAL ON WEDNESDAY AND ESSENTIALLY
REMAIN IN PLACE FOR THE NEXT SEVERAL DAYS. THIS WILL BRING A VERY
MODEST COOLING TREND WITH HIGHS WEDNESDAY DOWN 2-4 DEGREES...THEN
1-2 DEGREES BOTH THURSDAY AND FRIDAY. THE RIDGE AXIS WILL HAVE BEEN
DISPLACED OVER THE ROCKIES WITH A FOUR CORNERS HIGH FORMING BY THE
END OF THE WEEK. TEMPERATURES ARE FORECAST TO HOLD STEADY OVER THE
FOURTH OF JULY WEEKEND...WITH HIGHS RIGHT AROUND THE CENTURY MARK
ACROSS THE SJV...A FEW DEGREES ABOVE NORMAL FOR EARLY JULY.

AFTERNOON HEATING HAS RESULTED IN SOME CUMULUS BUILDUPS OVER THE
SIERRA CREST AND A FEW ISOLATED THUNDERSTORMS WILL BE POSSIBLE
INTO THE EARLY EVENING TONIGHT. A WEAK SHORTWAVE JUST OFF THE
CENTRAL COAST WILL MOVE INLAND ON TUESDAY AND PROVIDE ADDED LIFT
FOR A LITTLE BETTER CHANCE OF THUNDERSTORMS ALONG THE CREST. THE
LONG WAVE TROUGH SETTLING OVER NORCAL ON WEDNESDAY WILL BRING A
DRIER WEST SOUTHWEST FLOW ALOFT AND SHIFT THE THREAT EAST OF THE
CREST.

&&

.AIR QUALITY ISSUES...
ON TUESDAY JULY 1 2014... UNHEALTHY IN FRESNO COUNTY. UNHEALTHY
FOR SENSITIVE GROUPS IN KERN... KINGS... MADERA... MERCED 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 HIGH.

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 06-30      112:1891     68:1982     75:1980     53:1970
KFAT 07-01      114:1891     82:1982     80:1934     53:1975
KFAT 07-02      110:1942     78:1916     78:1924     51:1956

KBFL 06-30      111:1950     78:1997     82:2009     44:1907
KBFL 07-01      115:1950     70:1912     80:1977     50:1913
KBFL 07-02      114:1950     80:1902     85:1912     51:1913
&&

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

PUBLIC...DCH
AVN/FW...DCH
PREV DISCUSSION...DCH
SYNOPSIS...DCH

WEATHER.GOV/HANFORD