Area Forecast Discussion
Issued by NWS Los Angeles, CA

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FXUS66 KLOX 271158 AAA
AFDLOX

SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
320 AM PDT FRI MAR 27 2015

UPDATED MARINE SECTION

.SYNOPSIS...

IT WILL BE A LITTLE COOLER TODAY WITH MORE COOLING ON SATURDAY.
SUNDAY IS EXPECTED TO BE THE COOLEST DAY...WITH LITTLE CHANGE
THROUGH THE MIDDLE OF NEXT WEEK. EVEN WITH THE COOLING
TREND...TEMPERATURES WILL STILL REMAIN ABOVE THE SEASONAL AVERAGES.

&&

.SHORT TERM (TODAY-SUN)...
A DULL 7 DAYS OF WEATHER ON TAP. 584 DM UPPER HIGH DIRECTLY OVER SRN
CA WITH WEAK 1 TO 2 MB OFFSHORE FLOW FROM BOTH EAST AND NORTH. A
SHALLOW MARINE LAYER SWOOPED DOWN THE COAST AND BROUGHT LOW CLOUDS
TO THE CENTRAL COAST ALONG WITH A LITTLE DENSE FOG. SOME CLOUDS ARE
SWEEPING INTO THE SBA CHANNEL BUT THE OFFSHORE FLOW SHOULD KEEP THE
CLOUDS AWAY FROM THE BEACHES SOUTH OF PT CONCEPTION. BIG DROP IN
TEMPS ACROSS THE CENTRAL COAST DUE TO THE NOW PRESENT MARINE LAYER.
SOME COOLING ACROSS THE REST OF THE COASTS AND VLYS DUE TO EARLIER
SEA BREEZE ALLOWED BY THE WEAKER OFFSHORE FLOW. HGTS ARE UNCHANGED
FROM YDY SO INLAND TEMPS WILL BE SIMILAR TO YDY.

THE RIDGE PUSHES OFF TO THE EAST SATURDAY AND ONSHORE FLOW RETURNS
TO THE AREA. THIS WILL ALLOW FOR BETTER MARINE LAYER STRATUS
DEVELOPMENT AND THE CENTRAL COAST AND THE LA COASTS SHOULD HAVE SOME
CLOUDS. THE MARINE LAYER...ONSHORE FLOW...AND LOWER HGTS WILL ALL
CONSPIRE TO LOWER MAX TEMPS BY 4 TO 8 DEGREES.

A LITTLE TROF ZIPS THROUGH THE AREA SUNDAY. IT WILL BRING PARTLY
CLOUDY SKIES TO THE AREA. ALL HI REZ MDLS SHOW THE LOW CLOUDS
CONFINED TO ONLY THE LA COAST WITH SOME OFFSHORE TRENDS KEEPING THE
CENTRAL COAST CLEAR. IT COULD HAPPEN BUT WOULD NOT BE SURPRISED IF
THERE WAS SOME STRATUS AROUND NORTH OF PT CONCEPTION. MAX TEMPS WILL
COOL ANOTHER DEGREE OR TWO. THIS WILL BE THE COOLEST DAY OF THE WEEK
AND YET MAX TEMPS WILL BE 2 TO 4 DEGREES ABOVE NORMAL.

.LONG TERM (MON-THU)...
FLAT WESTERLY ZONAL FLOW SETS UP FOR THE EXTENDED PERIOD. IT WILL BE
DRY BUT THERE WILL BE SOME MID TO HIGH LEVEL CLOUDS EMBEDDED IN IT.
SO SKIES WILL VARY BETWEEN MOSTLY CLEAR AND PARTLY CLOUDY. THERE
WILL BE SOME NIGHT THROUGH MORNING LOW CLOUDS BUT MOSTLY AROUND THE
LA COAST DUE TO A WEAK EDDY. MAX TEMPS WILL NOT CHANGE VERY MUCH
FROM DAY.

&&

.AVIATION...
THERE WILL BE AREAS OF LOW CLOUDS AND PATCHY DENSE FOG ON THE
CENTRAL COAST THROUGH MID MORNING...WITH LIFR TO VLIFR CONDS.
OTHEWISE...EXPECT VFR CONDS THROUGH THIS EVENING. SOME STRATUS WITH
IFR TO LIFR CONDS WILL MOVE INTO THE CENTRAL COAST THIS
EVENING...AND INTO COASTAL SECTIONS OF L.A. COUNTY BY LATE EVENING.

KLAX...HIGH CONFIDENCE IN THE 12Z TAF WITH VFR CONDS THROUGH THIS
EVENING. THERE IS A 20 PERCENT CHANCE THAT STRATUS WITH IFR CIGS
TONIGHT WILL ARRIVE AS EARLY AS 05Z.

KBUR...HIGH CONFIDENCE IN THE 12Z TAF WITH VFR CONDS THROUGH THE PD.

&&

.MARINE...27/300 AM

LOCAL SCA CONDS EXPECTED ACROSS THE OUTER WATERS THIS MORNING. SCA
CONDS EXPECTED TO BECOME WIDESPREAD ACROSS THE OUTER WATERS THIS
AFTERNOON...THEN CONT THROUGH AT LEAST LATE SAT NIGHT. THERE IS A 20
TO 30 PERCENT CHANCE THAT SCA CONDS WILL LINGER WITH LITTLE
INTERRUPTION ACROSS THE OUTER WATERS TROUGH TUE.

PATCHY DENSE FOG...WITH VSBYS BELOW 1 NM WILL AFFECT MUCH OF THE
COASTAL WATERS THROUGH SAT MORNING.

&&

.BEACHES...A LONG PERIOD SOUTHERN HEMISPHERE SWELL WILL BEGIN TO
MOVE INTO THE COASTAL WATERS TODAY. EXPECT ELEVATED SURF AND STRONG
RIP CURRENTS AND LONGSHORE CURRENTS ON BEACHES WITH GOOD SOUTH
EXPOSURE THROUGH THE WEEKEND...AND MOST LIKELY EXTENDING INTO EARLY
NEXT WEEK. SNEAKER WAVES ARE POSSIBLE AS VERY LONG PERIOD SWELLS
OFTEN PRODUCE LONG LULLS IN WAVE ACTIVITY BETWEEN SETS.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
SMALL CRAFT ADVISORY (SEE LAXMWWLOX).
HIGH RIP CURRENT RISK (SEE LAXSRFLOX).

&&

$$

PUBLIC...RORKE
AVIATION/MARINE...DB
SYNOPSIS...B

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