Area Forecast Discussion
Issued by NWS San Joaquin Valley, CA

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FXUS66 KHNX 091043
AFDHNX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
243 AM PST TUE FEB 9 2016

.SYNOPSIS...
HIGH PRESSURE WILL CONTINUE TO BRING DRY WEATHER TO THE CENTRAL
CALIFORNIA INTERIOR FOR THE NEXT SEVERAL DAYS WITH PATCHY NIGHT AND
MORNING FOG IN THE SAN JOAQUIN VALLEY.

&&

.DISCUSSION...
RIDGE OF HIGH PRESSURE WILL SHOW A LITTLE SIGN OF WEAKENING
ACROSS NRN CA AS WE WILL SEE SOME IMPACT ACROSS NRN SJV AS A
MODERATE MARINE AIR INTRUSION IS FORECAST BY THE MODELS. COOLING
BY 3 TO 6 DEGREES IS EXPECTED ACROSS PARTS MERCED...MARIPOSA AND
FRESNO COUNTIES. NEW GUIDANCE IS COMING IN COOLER ACROSS THE NORTH
VALLEY. HAVE MADE SOME ADJUSTMENTS TO TODAYS HIGH TEMPS ACROSS THE
SJV.

CONCERN CONTINUES FOR GUSTY WINDS ACROSS THE EXTREME SRN END OF
THE SJV AS SOUTH WINDS ARE DOWNSLOPING THROUGH THE GRAPEVINE. WILL
CONTINUE TO MONITOR FOR CONDITIONS TO POSSIBLY WARRANT A WIND
ADVISORY.

GUIDANCE IS CONFIDENT THAT THE MEAN RIDGE PATTERN OVER THE NEXT
SEVERAL DAYS WILL REMAIN IN PLACE ACROSS THE WEST. HOWEVER A
SERIES OF FRONTS WILL TRY TO SQUASH THE RIDGE BY SATURDAY AS
HEIGHTS FALL AS SO DO TEMPS. INCREASING ONSHORE FLOW WILL ALLOW
FOR MORE SEASONAL TEMPS ACROSS THE REGION BY FRIDAY WILL HOLD
STEADY AS DEEPER TROUGH MOVES THROUGH ON SATURDAY. HEIGHTS WILL
TRY TO RISE AGAIN ONCE THE TROUGH PASSES THROUGH BY MONDAY WITH
TEMPS RISING ONCE AGAIN ABOVE NORMAL.

PATCHY DENSE FOG WILL ALWAYS BE A CONCERN IN THIS PATTERN THIS
TIME OF YEAR IN THE SAN JOAQUIN VALLEY. INCREASED PARTICULATE AND
STRONG INVERSION WITH LOW LEVEL MOISTURE FROM PAST RAINFALL WILL
PROVIDE PATCHY DENSE FOG ACROSS THE CENTRAL SAN JOAQUIN RIVER
VALLEY.

&&

.AVIATION...
IN THE SAN JOAQUIN VALLEY...A GOOD CHANCE OF AREAS OF MVFR WITH
LOCAL IFR CONDITIONS. A SLIGHT CHANCE OF LOCAL LIFR IN FOG/HAZE
BETWEEN THE HOURS OF 10Z AND 20Z TUESDAY. OTHERWISE...VFR CONDITIONS
WILL PREVAIL ACROSS THE CENTRAL CALIFORNIA INTERIOR DURING THE NEXT
24 HOURS.

&&

.AIR QUALITY ISSUES...
ON TUESDAY FEBRUARY 9 2016... FIREPLACE/WOOD STOVE BURNING STATUS
IS: NO BURNING UNLESS REGISTERED IN FRESNO... KERN... KINGS...
MADERA... MERCED AND TULARE COUNTIES.
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 02-09       71:2012     45:1923     56:1987     27:1891
KFAT 02-10       75:1961     44:1894     54:1916     29:1965
KFAT 02-11       73:1925     46:2001     53:1970     28:1948

KBFL 02-09       77:2012     42:1919     58:1975     24:1929
KBFL 02-10       79:1961     47:1967     54:1973     23:1929
KBFL 02-11       81:1925     45:1989     56:1925     20:1901
&&

.HNX WATCHES/WARNINGS/ADVISORIES...
DENSE FOG ADVISORY UNTIL 10 AM PST THIS MORNING CAZ089>092.

&&

$$

PUBLIC...JDB
AVN/FW...MOLINA
SYNOPSIS...JDB

WEATHER.GOV/HANFORD


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