FXUS66 KHNX 160524
AFDHNX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
924 PM PST TUE DEC 15 2009
.SYNOPSIS...
A HIGH PRESSURE RIDGE WILL BE OVER THE AREA THE REST OF THIS WEEK
AND INTO EARLY NEXT WEEK WITH THE POSSIBILITY OF FOG DEVELOPMENT
EACH NIGHT AND MORNING OVER THE SAN JOAQUIN VALLEY. EXCEPT A WEAK
LOW PRESSURE SYSTEM WILL BRING MOSTLY CLOUDY SKIES OVER THE DISTRICT
TONIGHT AND WEDNESDAY ALONG WITH A CHANCE OF RAIN AND SNOW SHOWERS
FROM FRESNO COUNTY NORTHWARD.
&&
.DISCUSSION...
A FRONTAL SYSTEM MOVING INTO NRN CA THIS EVENING HAS SPREAD
PRECIPITATION INLAND WELL NORTH OF THE CWA WHILE ONLY MID AND HIGH
CLOUDINESS HAS SPREAD SOUTH OVER THE DISTRICT. VARIABLE CLOUDS
TONIGHT WILL HELP TO KEEP ANY DENSE FOG FROM FORMING OVERNIGHT.
GFS/NAM SHOW A SECOND VERY WEAK SHORT WAVE MOVING ONSHORE WEDNESDAY
WHICH WILL BRING A SLIGHT CHANCE OF SHOWERS TO NRN PORTIONS OF THE
CWA. THIS SYSTEM LOOKS VERY WEAK WITH LIMITED MOISTURE. ANY
SIGNIFICANT PRECIPITATION WILL ALSO REMAINING NORTH OF THE CWA.
TEMPS REMAINING MILD THROUGH WEDNESDAY.
HIGH PRESSURE RIDGING NEAR THE WEST COAST THROUGH THE END OF THE
WEEK WILL SHUNT ANY ADDITIONAL APPROACHING WEATHER SYSTEM WELL
NORTH WITH CONDITIONS STAYING DRY OVER THE CWA. THE DEVELOPING
RIDGE ALONG THE WEST COAST COMBINING WITH A WEAK OFFSHORE SURFACE
PRESSURE PATTERN WILL RESULT IN INCREASING VALLEY FOG FOR SAN
JOAQUIN VALLEY ZONES THROUGH THE END OF THE WEEK. PATCHY DENSE FOG
THURSDAY MORNING WILL LIKELY BECOME MORE WIDESPREAD FRIDAY AND
MORNING CONTINUING THROUGH THE WEEKEND. MOUNTAINS AND DESERTS WILL
SEE MOSTLY SUNNY DAYS WITH WARMER DAYTIME TEMPERATURES.
&&
.AVIATION...
AREAS OF MVFR DUE TO MIST AND FOG IN THE SAN JOAQUIN VALLEY THROUGH
15Z THEN IMPROVING TO VFR AFTER 18Z. AREAS OF MOUNTAIN OBSCURATIONS
IN THE SIERRA THROUGH 06Z THURSDAY IN RAIN AND SNOW. VFR CONDITIONS
WILL PREVAIL ELSEWHERE .END.AVIATION..
&&
.AIR QUALITY ISSUES...
ON WEDNESDAY DECEMBER 16 2009... FIREPLACE/WOOD STOVE BURNING IS
PROHIBITED IN KERN COUNTY.
FURTHER INFORMATION IS AVAILABLE AT VALLEYAIR.ORG
&&
.HNX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&
$$
PUBLIC...GREISS
AVN/FW...DUDLEY
SYNOPSIS...BSO
WEATHER.GOV/HANFORD
