074
FXUS66 KLOX 191143
AFDLOX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
343 AM PST WED FEB 19 2025
SYNOPSIS
19/343 AM.
DRY WEATHER AND WARMING TEMPERATURES ARE EXPECTED THIS WEEK, WITH
HIGHS WELL ABOVE NORMAL FRIDAY THROUGH MONDAY. SKIES WILL BE
MOSTLY SUNNY, EXPECT FOR PERIODS OF LOW CLOUDS AND FOG NEAR THE
COAST AND SOME HIGH CLOUDS. AREAS OF GUSTY NORTHERLY AND
NORTHEASTERLY WINDS ARE EXPECTED TONIGHT THROUGH FRIDAY.
SHORT TERM (TDY-FRI)
19/323 AM.
MOSTLY SUNNY SKIES ARE EXPECTED TODAY THROUGH FRIDAY, EXCEPT FOR
SOME SCATTERED HIGH CLOUDS THAT ARE CURRENTLY STREAMING ACROSS
THE REGION. THERE IS ALSO A CHANCE OF MARINE LAYER LOW CLOUDS AND
FOG FOR THE LA BASIN THIS MORNING AND AGAIN THURSDAY MORNING.
AN INSIDE SLIDER TROUGH PASSING TO THE NORTHEAST OF THE REGION
WILL BRING PERIODS OF MODERATE OFFSHORE WINDS THIS AFTERNOON
THROUGH FRIDAY. TONIGHT THROUGH THURSDAY MORNING, GUSTS 40 TO 50
MPH OUT OF THE NORTH- TO- NORTHEAST WILL BE COMMON ACROSS THE
MOUNTAINS. GUSTS 30 TO 40 MPH ARE EXPECTED FOR THE WIND PRONE
VALLEYS OF LOS ANGELES AND VENTURA COUNTY (INCLUDING THE SANTA
CLARITA VALLEY, WESTERN SAN FERNANDO VALLEY AND AGOURA
HILLS/CALABASAS). WIND ADVISORIES HAVE BEEN ISSUED STARTING THIS
AFTERNOON/EVENING, PLEASE SEE NPWLOX FOR MORE DETAILS.
THURSDAY NIGHT INTO FRIDAY MORNING, A MODERATE SANTA ANA
NORTHEAST WIND EVENT IS EXPECTED. WINDS WILL BE FOCUSED OVER THE
WIND PRONE CORRIDOR IN LA/VENTURA COUNTIES AND THE SANTA LUCIA
MOUNTAINS IN SAN LUIS OBISPO COUNTY.
THE OFFSHORE WINDS WILL RESULT IN A GENERAL WARMING TEMPERATURE
TREND THROUGH FRIDAY, ESPECIALLY FOR COASTS AND VALLEYS. DAYTIME
HIGHS TODAY AND THURSDAY WILL MOSTLY BE IN THE UPPER 60S TO MID
70S, FOLLOWED BY A GREATER BUMP FOR FRIDAY. EXPECT HIGHS IN THE
MID 70S TO LOW 80S TO BE COMMON, ESPECIALLY FOR LA/VENTURA
COUNTIES.
LONG TERM (SAT-TUE)
19/341 AM.
THIS WEEKEND INTO EARLY NEXT WEEK, A RIDGE OF HIGH PRESSURE IS
LIKELY TO BUILD OVER THE REGION. THIS WILL YIELD CONTINUED WARM
TEMPERATURES, PEAKING ON SUNDAY OR MONDAY, WHEN HIGHS IN THE UPPER
70S TO MID 80S ARE EXPECTED TO BE WIDESPREAD.
THIS WEEKEND, THE FLOW PATTERN AT SURFACE WILL BE DOMINATED BY
WEAK OFFSHORE FLOW THAT IS LIKELY TO KEEP MOST CLOUDS AT BAY. THEN
EARLY NEXT WEEK, THERE IS THE POTENTIAL FOR GUSTY NORTH TO
NORTHWESTERLY WINDS. GUSTY CONDITIONS ARE MOST FAVORED FOR
SOUTHWEST SANTA BARBARA COUNTY AND INTERIOR MOUNTAIN AREAS.
ADDITIONALLY, INCREASING ONSHORE FLOW MAY FACILITATE THE RETURN OF
MORNING MARINE LAYER CLOUDS AND FOG AT THE COASTS, WHICH MAY
SERVE TO MODERATE TEMPERATURES ALONG THE IMMEDIATE COASTLINE.
STILL NO INDICATION OF ANY SIGNIFICANT RAIN THROUGH THE END OF
THE MONTH.
AVIATION
19/0724Z.
AT 0534Z AT KLAX, THE MARINE LAYER WAS 600 FT DEEP WITH AN
INVERSION UP TO 1400 FT WITH A MAXIMUM TEMPERATURE OF 17 C.
MODERATE TO HIGH CONFIDENCE IN FORECAST. LIFR TO IFR CONDITIONS
ARE POSSIBLE FROM 08Z-16Z FOR KLAX AND KLGB, WITH A SLIGHT CHANCE
AT KSMO AND KPRB.
KLAX...MODERATE CONFIDENCE IN TAF, THERE IS A 40 PERCENT CHANCE
VFR CONDITIONS THROUGH THE PERIOD. NO SIGNIFICANT EAST WIND
COMPONENT EXPECTED.
KBUR...HIGH CONFIDENCE IN TAF.
MARINE
18/930 PM.
THE SMALL CRAFT ADVISORY (SCA) LEVEL NORTHWEST WINDS WILL CONTINUE
TO SHRINK IN COVERAGE THROUGH WEDNESDAY MORNING, THEN THE WINDS
WILL STRENGTHEN AGAIN WEDNESDAY AFTERNOON AND NIGHT, EXPANDING
INTO THE NEARSHORE WATERS OF THE CENTRAL COAST AND WESTERN SANTA
BARBARA CHANNEL. THESE EXPANSE OF THE WINDS WILL CHANGE LITTLE ON
THURSDAY, BUT THERE IS A MODERATE TO HIGH CHANCE OF GALES FROM
NEAR POINT CONCEPTION SOUTH TO SAN NICOLAS ISLAND AND IN THE
VICINITY OF THE CHANNEL ISLANDS. THE WINDS WILL SHIFT TO
NORTHEASTERLY FRIDAY MORNING AND THERE IS A MODERATE CHANCE OF
LOW-END SCA LEVEL WINDS FROM VENTURA THROUGH SANTA MONICA, AND A
LOW CHANCE OF SUCH WINDS FROM ORANGE COUNTY TO CATALINA. MODERATE
CONFIDENCE IN RELATIVELY LIGHT WINDS TO FOLLOW OVER THE WEEKEND,
EXCEPT FOR LOW-END SCA NORTHWEST WINDS BEYOND 20 MILES FROM
SHORE.
THE CURRENTLY LARGE SCA-LEVEL SEAS WILL CONTINUE TO SUBSIDE
THROUGH TONIGHT. THE SEAS ARE RUNNING LARGER THAN MODELS ARE
INDICATING, AS IS USUAL FOR LARGER SEAS. SEAS WILL BUILD AGAIN
WEDNESDAY NIGHT INTO THURSDAY.
LOX WATCHES/WARNINGS/ADVISORIES
CA...WIND ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON PST
THURSDAY FOR ZONES 88-342-345-352-353-362-369>372-374>379. (SEE LAXNPWLOX).
WIND ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 AM PST
THURSDAY FOR ZONES 349-351. (SEE LAXNPWLOX).
PZ...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO 3
AM PST THURSDAY FOR ZONE 650. (SEE LAXMWWLOX).
SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM PST THURSDAY FOR
ZONES 670-673-676. (SEE LAXMWWLOX).
PUBLIC...SCHOENFELD
AVIATION...SCHOENFELD
MARINE...HALL
SYNOPSIS...RS/RM
WEATHER.GOV/LOSANGELES
EXPERIMENTAL GRAPHICAL HAZARDOUS WEATHER OUTLOOK AT:
HTTPS://WWW.WEATHER.GOV/ERH/GHWO?WFO=LOX
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