Area Forecast Discussion
Issued by NWS San Joaquin Valley, CA

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000
FXUS66 KHNX 260555 AAA
AFDHNX

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
955 PM PST SUN JAN 25 2015

.SYNOPSIS...
A HIGH PRESSURE RIDGE WILL DRIFT FROM NORTHERN CALIFORNIA TO THE
FOUR CORNERS REGION BY MONDAY MORNING. A STORM SYSTEM OFF THE
COAST OF NORTHERN BAJA WILL BRING SHOWERS INTO MUCH OF THE CENTRAL
CALIFORNIA INTERIOR LATE MONDAY THROUGH TUESDAY. DRY WEATHER WILL
RETURN BY WEDNESDAY. ANOTHER STORM WILL BRING A RENEWED CHANCE OF
SHOWERS TO MAINLY THE MOUNTAINS AND DESERT LATER IN THE WEEK.

&&

.DISCUSSION...
CLEAR SKIES HAVE REALLY ALLOWED TEMPS TO DROP IN THE VALLEY. WE
HAVE UPDATED TEMPS INTO THE MID TO UPPER 30S ACROSS SEVERAL PARTS
OF THE VALLEY. FRESNO AND BAKERSFIELD REMAIN WARM. ADJUSTED AREA
OF FOG IN THE VALLEY AND FOCUSED DENSE FOG NEAR MERCED. COVERAGE
IS NOT WIDESPREAD ENOUGH TO ISSUE A DENSE FOG ADVISORY AT THIS
TIME. PLENTY OF HIGH AND MID CLOUDS WILL PROBABLY LOCK TEMPS AT
THEIR CURRENT VALUES OVERNIGHT. WE ARE STILL LOOKING AT RAIN
SPREADING FROM SOUTH TO NORTH LATE TOMORROW AFTERNOON AND
EVENING.

&&

.PREV DISCUSSION... /ISSUED 411 PM PST SUN JAN 25 2015/

DISCUSSION...LOW CLOUDS ACROSS THE SAN JOAQUIN VALLEY ARE
BREAKING UP AND VIRTUALLY ALL LOCATIONS WILL GET AT LEAST A
GLIMPSE OF THE SUN THIS AFTERNOON. SATELLITE SHOWS HIGH AND MID
CLOUDS INVADING THE DESERT AREAS AHEAD OF A LOW PRESSURE SYSTEM
APPROACHING FROM THE SOUTH. THE CLEARING SKIES ARE FAVORABLE FOR
RAPID RADIATIONAL COOLING AND FOG REDEVELOPMENT TONIGHT. FOG
FORMATION COULD HOWEVER BE INHIBITED BY SOME DRIER AIR IN
EASTERLY FLOW AROUND THE TOP OF THIS LOW ALONG WITH THE INCOMING
CLOUDS. A DENSE FOG ADVISORY IS NOT ANTICIPATED FOR TONIGHT AT
THIS TIME BUT CONDITIONS WILL BE MONITORED THIS EVENING.

MODELS ARE IN GOOD AGREEMENT IN LIFTING THIS LOW NORTHWESTWARD AND
THAN PUSHING IT ACROSS CENTRAL CALIFORNIA TUESDAY. THIS WILL BRING
RAIN TO THE DESERT AND MOUNTAIN AREAS BY MONDAY AND SPREADING
ACROSS THE AREA THROUGH TUESDAY. SNOW LEVELS WITH THIS STORM WILL
BE RATHER HIGH BUT MODERATE QPF AMOUNTS WILL ALLOW FOR UP TO A
FOOT OF SNOW AT THE VERY HIGHEST ELEVATIONS...OTHERWISE A FEW
INCHES ARE EXPECTED GENERALLY ABOVE 7000 FT. RAINFALL AMOUNTS IN
THE VALLEY BE AROUND 1/10 OF AN INCH.

AS THIS SYSTEM LIFTS OUT...WEDNESDAY WILL BRING A BREAK...THEN
ADDITIONAL SHORTWAVE ENERGY LIFTS NORTHEAST INTO THE REGION
THROUGH THE END OF THE WEEK. MODELS ARE TRENDING A LITTLE FARTHER
EAST WITH THE ASSOCIATED MOISTURE WITH THIS SYSTEM. IT WILL BRING
AT LEAST A SLIGHT CHANCE FOR PRECIP OVER THE DESERT AND MOUNTAIN
AREAS BY THURSDAY NIGHT INTO THE WEEKEND.

&&

.AVIATION...
WIDESPREAD IFR VISIBILITIES AND CEILINGS IN FOG AND STRATUS ACROSS
MOST OF THE SAN JOAQUIN VALLEY AND ADJACENT TERRAIN THROUGH 00Z
MONDAY...WITH AREAS OF LIFR/VLIFR BETWEEN 06Z AND 20Z MONDAY. VFR
CONDITIONS CAN BE EXPECTED ELSEWHERE ACROSS THE CENTRAL CALIFORNIA
INTERIOR DURING THE NEXT 24 HOURS.

&&

.AIR QUALITY ISSUES...
ON MONDAY JANUARY 26 2015... 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 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.

&&

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

KFAT 01-25       70:2005     42:1895     57:1969     24:1949
KFAT 01-26       70:1940     41:1957     52:1940     24:1898
KFAT 01-27       70:1934     39:1963     52:2012     25:1949

KBFL 01-25       77:1924     39:1999     57:1969     22:1893
KBFL 01-26       78:1942     45:1902     56:1966     25:1904
KBFL 01-27       75:1928     37:1963     51:2012     24:1904
&&

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

$$

PUBLIC...JDB
AVN/FW...DS
PREV DISCUSSION...JEB
SYNOPSIS...WP

WEATHER.GOV/HANFORD


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