312 
FXUS66 KLOX 041557
AFDLOX
SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
900 AM PDT TUE JUN 4 2002

MAIN STORY THE NEXT FEW DAYS WILL BE THE HEAT. TODAY IS THE TRANSITION
DAY, WHICH MEANS SOME PLACES (MAINLY ALONG THE COAST S OF PT
CONCEPTION) WILL NOT SEE MUCH TEMPERATURE CHANGE, WHILE OTHER AREAS
(MTNS, HIGHER VALLEYS, CENTRAL COAST) WILL SEE HUGE JUMPS. VBG
SOUNDING SHOWS PRETTY MUCH WHAT WAS EXPECTED, AN INCREASE IN NORTHEAST
FLOW JUST ABOVE THE SURFACE WHICH HAS CAUSED TEMPS BETWEEN 900 AND 975
MB TO SPIKE BY 15 DEGREES. ALTHOUGH MARINE LYR TOPS ARE STILL AROUND
800 FEET, I THINK WELL SEE TEMPS IN THE SBP AREA REACH THE HIGH 80S
OR LOW 90S THIS AFTERNOON. ARROYO GRANDE ALREADY UP 14 FROM YESTERDAY
AT THIS TIME AND SBP IS UP 8.

FURTHER SOUTH, LA AND VTU VALLEYS ARE STILL MIRED UNDER THE MARINE
LAYER WHICH STANDS AT AROUND 1500 FEET. CLOUDS WERE PRETTY MUCH
CONFINED JUST TO THE IMMEDIATE COAST, BUT MARINE AIR STILL LINGERS
QUITE A WAYS INLAND. THIS WILL KEEP TEMPS FROM JUMPING TOO MUCH TODAY,
BUT WITH GRADIENTS CONTINUING TO TREND OFFSHORE TNT, WED SHOULD BE A
MUCH WARMER DAY WITH NEAR RECORD BREAKING TEMPS. 

JUST ABOVE THE MARINE LYR, SUCH AS THE HIGHER VALLEYS AND MTNS, TEMPS
WILL BE MUCH WARMER. ALREADY MANY LOCATIONS ARE INTO THE 70S, WITH
TANBARK (AT 2600 FEET IN THE ANGELES NF) AT 82 DEGREES (UP 30 FROM
YESTERDAY AT THIS TIME)

PROBABLY NOT TOO MUCH CHANGE THURSDAY, THOUGH GRADIENTS WILL BE
TRENDING ONSHORE, WHICH MEANS COASTAL AREAS WILL START TO COOL DOWN. I
DONT SEE MUCH REASON FOR VALLEYS TO COOL THAT MUCH, THOUGH THE 00Z
AVN MOS SEEMS TO THINK IT WILL. FOW NOW AM INCLINED TO JUST INDICATE A
SLIGHT COOLING THURSDAY BUT NO MORE THAN A FEW DEGREES. FRIDAY AND THE
WEEKEND SHOULD SEE FURTHER COOLING WITH VALLEY TEMPS BACK DOWN INTO
THE 80S FOR THE MOST PART.

LAX 000. WOFFORD

.LOX...SMALL CRAFT ADVISORY (SEE LAXCWFLAX).