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AREA FORECAST DISCUSSION

 
 FXUS66 KLOX 250001
 AFDLOX
 
 SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION...UPDATED
 NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
 401 PM PST TUE NOV 24 2009
 
 ...UPDATED AVIATION SECTION...
 
 .SYNOPSIS...
 
 GUSTY OFFSHORE WINDS AND CLEAR SKIES SHOULD SEND THE AFTERNOON 
 TEMPERATURES FAR ABOVE THE SEASONAL VALUES INTO THURSDAY. A DRY COLD 
 FRONT WILL MOVE OVER THE AREA ON FRIDAY AND TEMPERATURES WILL COOL 
 SEVERAL DEGREES BELOW SEASONAL NORMAL. BREEZY OFFSHORE WINDS ON 
 SUNDAY WILL START A WARMING TREND WITH TEMPERATURES CLIMBING ABOVE 
 THE SEASONAL LEVELS.
 
 &&
 
 .SHORT TERM (TODAY-FRI)...HAVE EXTENDED THE WIND ADVISORY OVER AREAS 
 OF VENTURA AND LOS ANGELES COUNTIES THROUGH 3 PM WEDNESDAY. THE 
 BREEZY NORTHEAST WINDS WILL INCREASE OVERNIGHT WITH GUSTS TO 55 MPH 
 IN THE HIGHER ELEVATIONS TO 40 MPH IN THE LOWER ELEVATIONS...GUSTS 
 WILL TREND SLIGHTLY LESS THAN EARLIER THIS MORNING. A DECREASING 
 TREND WILL CONTINUE WEDNESDAY NIGHT AND THURSDAY MORNING AS THE 
 RIDGE OF HIGH PRESSURE OVER THE GREAT BASIN WEAKENS. TEMPERATURES 
 WERE 5 TO 10 DEGREES SEASONAL NORMAL THIS AFTERNOON AND A WARMING 
 TREND WILL VERY LIKELY CONTINUE OVER THE INLAND AREAS WITH A 
 COOLING TREND NEAR THE COAST AS THE OFFSHORE WINDS WEAKEN AND 
 REVERSE WED THROUGH THU. AS THE RIDGE OVER THE GREAT BASIN AND 
 EASTERN PAC WEAKENS A LOW PRESSURE SYSTEM...CURRENTLY OVER THE 
 CENTRAL PAC...WILL APPROACH AND MOVE ASHORE FRI. A DRY COLD FRONT 
 WILL MOVE ASHORE FRI AND TEMPERATURES WILL COOL 5 TO 10 DEGREES 
 BELOW SEASONAL NORMAL AND BREEZY NORTHWEST WINDS. WILL CONTINUE DRY 
 OVER THE ENTIRE AREA FRI.
 
 .LONG TERM (SAT-TUE)...COOLER THAN NORMAL TEMPERATURES WILL CONTINUE 
 SATURDAY AND WILL CONTINUE WITH A SLIGHT CHANCE OF LIGHT 
 PRECIPITATION IN THE VICINITY OF CUDDY VALLEY SAT. THERE IS A CHANCE 
 MOISTURE...REMNANT FROM THE FRONT...CONSOLIDATES AND ASCENDS ALONG 
 THE SLOPES ADJACENT TO NORTHERN VENTURA COUNTY MOUNTAINS. OTHERWISE 
 MADE LITTLE CHANGES THROUGH THE PERIOD. LOW LEVEL NORTHEAST WINDS 
 WILL INCREASE SATURDAY AS A RIDGE OF HIGH PRESSURE BUILDS OVER THE 
 PAC NW AND MOVES OVER THE GREAT BASIN...THE GUSTY WINDS WILL PERSIST 
 OVER THE AREA THROUGH SUN MORNING THEN DIMINISH AS THE RIDGE WEAKENS 
 SUN EVENING. GUIDANCE WAS CONSISTENT WITH AN HIGH AMPLITUDE LONG 
 WAVE RIDGE BUILDING NORTH AND CENTERED OVER THE PAC NW. LOWER THAN 
 NORMAL MID LEVEL HEIGHTS WILL LIKELY DEVELOP SOUTHWEST OF THE AREA 
 WHILE THE RIDGE BUILDS NORTH AND UPPER MID/UPPER LEVEL CLOUDS WILL 
 BEGIN TO MOVE OVER THE AREA TUE. TEMPERATURES WILL LIKELY WARM TO 
 SEVERAL DEGREES ABOVE NORMAL SUN WITH LITTLE CHANGES THROUGH TUE.  
 
 &&
 
 .AVIATION...25/0001Z.
 VFR CONDITIONS ARE EXPECTED THROUGHOUT THE PERIOD AT ALL TERMINALS. 
 PERIODS OF MODERATE TO STRONG TURBULENCE AND LOW LEVEL WIND SHEAR 
 WILL OCCUR AT KBUR...KVNY...AND KOXR.
 
 KLAX...VFR CONDITIONS ARE EXPECTED THROUGHOUT THE PERIOD.
 
 KBUR...VFR CONDITIONS ARE EXPECTED THROUGHOUT THE PERIOD WITH 
 PERIODS OF MODERATE TO STRONG TURBULENCE AND LOW LEVEL WIND SHEAR.
 
 &&
 
 .LOX WATCHES/WARNINGS/ADVISORIES...
 WIND ADVISORY (SEE LAXNPWLOX).
 
 
 &&
 
 

 
 PUBLIC...30
 AVIATION...HALL
 SYNOPSIS...SETO
 
 WWW.WEATHER.GOV/LOSANGELES
 
 
 

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