FXUS66 KHNX 150443

AFDHNX



AREA FORECAST DISCUSSION

NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA

943 PM PDT SUN MAR 14 2010



.SYNOPSIS...

A RIDGE OF HIGH PRESSURE ALONG WITH WARMER TEMPERATURES AND DRY 

CONDITIONS WILL PREVAIL THROUGH NEXT WEEKEND.





&&



.DISCUSSION...AN UPPER LEVEL RIDGE CONTINUES TO BUILD INLAND OVER

THE WEST COAST WITH JUST SOME MAINLY THIN HIGH CLOUDS DRIFTING

ACROSS INTERIOR CENTRAL CALIFORNIA OVER THE RIDGE. 24 HR

TEMPERATURE TRENDS ARE CURRENTLY RUNNING UP AROUND 4-8 DEGREES.

EXPECT OVERNIGHT LOWS TO BE SEVERAL DEGREES ABOVE LAST

NIGHT...JUST SLIGHTLY BELOW CLIMO. NO UPDATES ARE REQUIRED FOR THE

FORECAST TONIGHT. THE UPPER RIDGE WILL KEEP CONDITIONS DRY AND

WARM OVER THE DISTRICT THROUGH THE WEEK...WITH JUST A SLIGHT

CHANCE FOR SOME SHOWERS NEAR THE SIERRA CREST AROUND MIDWEEK AS

SOME SHORTWAVE ENERGY RIDES OVER THE RIDGE.



ABOVE &&



.PREV DISCUSSION... /ISSUED 239 PM PDT SUN MAR 14 2010/ 



DISCUSSION...A RIDGE OF HIGH PRESSURE WILL CONTINUE TO AMPLIFY

OVER CALIFORNIA MONDAY. THIS WILL BRING DRY CONDITIONS AND

WARMING TEMPERATURES TO THE REGION. THE RIDGE WILL BEGIN TO

SHIFT EASTWARD TUESDAY AS A LOW PRESSURE SYSTEM IN THE PACIFIC

RIDES UP OVER THE RIDGE IN TO BRITISH COLUMBIA BUT TEMPERATURES

WILL REMAIN WARM AS 850 MB TEMPERATURES CONTINUE TO RISE SLIGHTLY.

WITH 850 MB TEMPERATURES 12-14 DEGS C ON TUESDAY THE SAN JOAQUIN

VALLEY TEMPERATURE WILL BE MAINLY IN THE MID TO UPPER 70S...WHICH

IS 7-8 DEGREES ABOVE NORMAL. WE COULD EVEN SEE A FEW LOWER 80S IN

THE SOUTH END OF THE VALLEY TUESDAY WITH A LIGHT SOUTHEAST WIND

AND A LITTLE DOWN SLOPING. 



TEMPERATURES WILL EDGE DOWN A FEW DEGREES WEDNESDAY AND

THURSDAY...BUT STILL REMAIN ABOVE NORMAL...AS THE UPPER LOW MOVES

OVER THE TOP OF THE RIDGE AND DROPS DOWN INTO THE GREAT BASIN.

PART OF THE ENERGY WITH THIS SYSTEM WILL DROP SOUTH ALONG THE

SIERRA AND MAY BRING A FEW SHOWERS NEAR THE SIERRA CREST WEDNESDAY

NIGHT AND THURSDAY. THEN THE RIDGE WILL REBUILD FRIDAY AND

SATURDAY. 



THE ECMWF BRINGS ANOTHER TROUGH ACROSS THE PACIFIC NORTHWEST AND

NORTHERN CALIFORNIA SUNDAY...COOLING TEMPERATURES BACK TOWARD

NORMAL AND BRINGING A SLIGHT CHANCE OF PRECIPITATION ACROSS THE

FAR NORTHERN PART OF THE CWFA. THE GFS IS FARTHER NORTH WITH THE

SYSTEM AND ALTHOUGH IT WOULD COOL TEMPERATURES...IT WOULD BE DRY.

SO WITH THE EXCEPTION OF THE SLIGHT CHANCE POPS ALONG THE SIERRA

CREST WEDNESDAY NIGHT AND THURSDAY...THE FORECAST IS DRY THROUGH

THE NEXT SUNDAY.



NOTE...SPRING BEGINS AT 1732Z /1032 PDT/ ON MARCH 20TH.



&&



.AVIATION...

VFR CONDITIONS WILL PREVAIL ACROSS THE CENTRAL CA INTERIOR THROUGH 

06Z TUESDAY. 



&&



.AIR QUALITY ISSUES...

NONE



&&



.HNX WATCHES/WARNINGS/ADVISORIES...

NONE.

&&



$$



PUBLIC...JEB

AVN/FW...DCH

SYNOPSIS...JEB



WEATHER.GOV/HANFORD