Area Forecast Discussion
Issued by NWS San Joaquin Valley, CA

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FXUS66 KHNX 251035
AFDHNX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
335 AM PDT FRI JUL 25 2014

.SYNOPSIS...
HIGH PRESSURE WILL REMAIN ANCHORED OVER THE DESERT SOUTHWEST THROUGH
THE MIDDLE OF NEXT WEEK. THIS WILL RESULT IN CONTINUED WARM TEMPERATURES
ACROSS THE AREA. SOUTHERLY FLOW AROUND THE HIGH PRESSURE WILL BRING
MONSOON MOISTURE STARTING SUNDAY...INCREASING THE THREAT OF SHOWERS
OR THUNDERSTORMS OVER THE SOUTHERN SIERRA NEVADA FOR MUCH OF NEXT
WEEK.

&&

.DISCUSSION...SEASONABLY MILD OVERNIGHT TEMPERATURES CONTINUE...WITH
JUST SOME HIGH CLOUDS DRIFTING OVERHEAD IN SOUTHWESTERLY FLOW ALOFT
BETWEEN THE SOUTHWEST US UPPER RIDGE AND THE EAST PACIFIC TROUGH.
MODELS PROG THE RIDGE TO CONTINUE EXPANDING WESTWARD DURING THE
NEXT FEW DAYS...PROVIDING DRY AND WARMING CONDITIONS INTO THE
WEEKEND. EXPECT WIDESPREAD TRIPLE DIGIT HIGHS TODAY ACROSS THE
VALLEY...DESERT AND LOWER FOOTHILL AREAS. THESE WARM CONDITIONS
WITH TEMPERATURES RUNNING AROUND 3-6 DEGREES ABOVE CLIMO ARE
EXPECTED TO LAST THROUGH THE MIDDLE OF NEXT WEEK. THERE IS
REASONABLY GOOD MODEL CONSENSUS IN THEN DEVELOPING A TROUGH ALONG
THE WEST COAST AND WEAKENING THE RIDGE FOR A FEW DEGREES OF
COOLING BY THE LATTER PART OF NEXT WEEK.

IN ADDITION TO WARMING TEMPERATURES...AS THE CURRENT DRY
SOUTHWESTERLY FLOW TURNS MORE SOUTH AND SOUTHEASTERLY AROUND THE
EXPANDING RIDGE...MONSOONAL MOISTURE WILL BEGIN TO BRUSH OUR
REGION. THIS WILL BRING SOME CHANCES FOR AFTERNOON AND EVENING
SIERRA THUNDERSTORMS BEGINNING SUNDAY. THE NORTH AMERICAN
ENSEMBLES SUGGEST THE BEST MOISTURE INTRUSION AND CHANCES FOR
MOUNTAIN THUNDERSTORMS WILL BE MON-WED...THEN TAPERING OFF DURING
THE END OF THE WEEK AS THE DEVELOPING TROUGH RETURNS A DRIER
SOUTHWESTERLY FLOW.

&&

.AVIATION...
VFR CONDITIONS CAN BE EXPECTED THROUGHOUT THE CENTRAL CALIFORNIA
INTERIOR DURING THE NEXT 24 HOURS.

&&

.AIR QUALITY ISSUES...
ON FRIDAY JULY 25 2014... UNHEALTHY FOR SENSITIVE GROUPS IN FRESNO
AND KERN 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.

&&

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

KFAT 07-25      113:2006     76:1913     82:2006     56:1889
KFAT 07-26      113:1931     84:1965     80:1931     56:1955
KFAT 07-27      114:1933     83:1941     79:1933     52:1897

KBFL 07-25      116:1931     84:1984     84:2006     50:1913
KBFL 07-26      117:1931     84:1965     83:1974     55:1903
KBFL 07-27      117:1933     85:1965     83:1980     52:1914
&&

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

$$

PUBLIC...JEB
AVN/FW...MV
SYNOPSIS...JEB

WEATHER.GOV/HANFORD






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