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000
FXUS66 KLOX 152356 AAA
AFDLOX

SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
455 PM PDT SAT JUN 15 2013

***UPDATE FOR NEW AVIATION DISCUSSION***

.SYNOPSIS...
LOW PRESSURE WILL REMAIN STATIONARY ALONG THE WEST COAST THROUGH THE
WEEKEND. THIS WILL HELP KEEP DAYTIME TEMPERATURES NEAR NORMAL AND
THE OVERNIGHT LOW CLOUDS AND FOG WILL CONTINUE ACROSS THE COAST AND
COASTAL VALLEYS THROUGH NEXT WEEK. A MORE SIGNIFICANT WARM UP CAN BE
EXPECTED NEXT WEEKEND AS HIGH PRESSURE BUILDS INTO THE FORECAST
AREA.

&&

.SHORT TERM (TODAY-TUE)...
MARINE LAYER HAS SHRUNK TO ABOUT 2400 FEET. EDDY PULLED A LITTLE TO
THE WEST AND THIS OVERWHELMED THE ONSHORE GRADIENTS AND ALLOWED FOR
BETTER CLEARING ACROSS L.A. AND VTA COUNTIES. MAX TEMPS SO FAR ARE
SIMILAR TO YDY ACROSS THE COASTS BUT ARE DOWN SOME IN THE VLYS DUE
TO A DEEPER MARINE LAYER AND DOWN A LITTLE IN THE MTNS AND INLAND
AREAS DUE TO SLIGHTLY LOWER HGTS.

NOT MUCH CHANGE SLATED FOR TONIGHT - LOW CLOUDS WILL MARCH INWARD.
THE EDDY WILL NOT BE AS STRONG AND THE SANTA CLARITA VLY WILL STAY
CLEAR. A FEW BREEZES THROUGH THE GAVIOTA PASS BUT NOT AT ADVISER
LEVELS.

PRETTY MUCH A DO OVER SUNDAY. THE UPPER SUPPORT SHIFTS A LITTLE MORE
WESTERLY AND ALIGNS A LITTLE BETTER WITH THE ONSHORE FLOW. THIS WILL
MAKE THE WESTERLY WINDS A LITTLE STRONGER. THE WESTERN FOOTHILLS OF
THE ANT VLY WILL SEE ISOLATED 45 MPH GUSTS WHILE THE REST OF THE VLY
WILL SEE BREEZY BUT SUB ADVISORY 35 MPH GUSTS.

THINGS CHANGE SUNDAY NIGHT AT THE GRADIENTS TREND SHARPLY OFFSHORE
FROM THE NORTH. NORTH WINDS WILL DEVELOP DURING THE EVENING ACROSS
THE YNEZ RANGE AND THEN AFTER MIDNIGHT THROUGH THE I-5 CORRIDOR.
THESE NORTH WINDS WILL ALSO GREATLY REDUCE THE LOW CLOUDS WHICH WILL
BE CONFINED TO THE L.A. COAST THE IMMEDIATE VTA COAST AND THE
WESTERN SBA COAST.

MONDAY WILL BE WARMER WITH TOTAL CLEARING AND OFFSHORE TRENDS.

MONDAY NIGHT AND TUESDAY WILL BE SIMILAR TO MONDAY JUST A LITTLE
LESS. A LITTLE LESS WINDY AND SO THERE WILL BE A LITTLE MORE
STRATUS. BUT STILL IT WILL BE PLEASANT DAY WITH MAX TEMPS NEAR
NORMAL.

.LONG TERM (WED-SAT)...
TYPICAL JUNE WEATHER WILL CONTINUE THROUGH THE XTND PERIOD. BOTH THE
EC AND THE GFS AGREE THAT DRY SW FLOW ALOFT WILL CONTINUE THROUGH
THE PERIOD. THE EC DIGS A LITTLE TROF TROF THROUGH THE AREA THURSDAY
WHICH IF IT COMES TRUE WILL MEAN A DEEPER MARINE LAYER AND COOLER
TEMPS BUT THE GFS INDICATES THAT NOT MUCH WILL HAPPEN. ALL IN ALL
NOT MUCH CHANGE TO THE NIGHT THROUGH MORNING LOW CLOUD PATTERN. MAX
TEMPS WILL BE NEAR NORMAL BUT MAY RISE A COUPLE OF DEGREES FRIDAY AS
HGTS RISE SOME AS THE UPPER LOW TRANSLATES EASTWARD.

&&

.AVIATION...15/2350Z...GENERALLY HI CONFIDENCE IN THE CURRENT TAFS.
LOW CLOUDS AND LIFR/IFR/MVFR CIGS WILL MOVE INTO THE COASTAL AND
ADJACENT VALLEY AIRFIELDS FROM EARLY THIS EVENING TO LATE TONIGHT
THEN CLEAR AWAY FROM THE AIRFIELDS BY LATE SUN MORNING TO EARLY
AFTERNOON WITH VFR CONDITIONS THRU THE REST OF THE DAY SUN. GUSTY SW
WINDS AT KPMD AND KWJF WILL LINGER THRU EARLY THIS EVENING THEN
INCREASE AGAIN SUN AFTERNOON.

KLAX...GENERALLY HI CONFIDENCE WITH THE CURRENT TAF. LOW CLOUDS AND
MVFR CIGS SHOULD MOVE INTO THE AIRFIELD BY 04Z THEN LINGER THRU
ABOUT 18Z WITH VFR CONDITIONS SUN AFTERNOON AND EVENING.

KBUR...GENERALLY HI CONFIDENCE WITH THE CURRENT TAF. VFR CONDITIONS
WILL PREVAIL FOR MOST OF THE TAF PERIOD...EXCEPT A PERIOD OF
IFR/MVFR CIGS 08Z-18Z.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
NONE

&&

$$

PUBLIC...RORKE
AVIATION...SIRARD
SYNOPSIS...SWEET

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