National Weather Service Text Product
AFOS product AFDLOX
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: AFDLOX
Product Timestamp: 2002-11-19 04:45 UTC
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440 FXUS66 KLOX 190451 AFDLOX SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 845 PM PST MON NOV 18 2002 UPPER RIDGE OFF THE COAST WILL STRENGTHEN OVER REGION DURING THE NEXT 2 DAYS...WITH HEIGHTS OF 590 DM EXPECTED DURING PERIOD. THE UNUSUALLY STRONG HIGH PRESSURE CENTER COMBINED WITH INCREASING OFFSHORE FLOW WILL BRING SOME VERY WARM AND DRY CONDITIONS TO LOW ELEVATION LOCATIONS. NORTHEAST WINDS ARE EXPECTED TO INCREASE LATER TONIGHT AND TUESDAY BELOW PASSES AND CANYONS...AND PERHAPS BE A LITTLE STRONGER TUESDAY NIGHT INTO WEDNESDAY. MODERATE OFFSHORE GRADIENTS ALREADY IN PLACE THIS EVENING...AS EVIDENT BY -4.8 MB OFFSHORE GRADIENT BETWEEN LAX AND DAGGETT. THIS OFFSHORE GRADIENT EXPECTED TO PEAK BETWEEN -6 AND -7 MB BOTH TUESDAY AND WEDNESDAY MORNINGS. UPPER LEVEL SUPPORT RATHER MINIMAL AT THE MOMENT...BUT LOW LEVEL WINDS UP TO 850 MB EXPECTED TO INCREASE LATER TONIGHT AND TUESDAY. LOW LEVEL WINDS AND SUBSIDENCE INCREASE EVEN FURTHER TUESDAY NIGHT INTO WEDNESDAY. WIND ADVISORIES ALREADY POSTED FOR VTU COUNTY VALLEYS AND SANTA CLARITA VALLEY...AND WILL ADD VENTURA/LOS ANGELES COUNTY MOUNTAINS (INCLUDING SANTA MONICA RANGE) TO ADVISORY AREA...SINCE FREQUENT GUSTS OVER 45 MPH ARE EXPECTED LATER TONIGHT THROUGH WEDNESDAY. WINDS MAY DIMINISH SOME LATE TUESDAY AFTERNOON AND EVENING...BUT WILL KEEP ADVISORY GOING THROUGH WEDNESDAY...RATHER THAN REISSUING ANOTHER ADVISORY TOMORROW EVENING. OTHER BIG STORY OVER NEXT COUPLE OF DAYS WILL BE VERY WARM TEMPERATURES. HIGH TEMPERATURES SOARED INTO THE LOWER TO MID 80S IN MANY LOCATIONS TODAY. WITH OFFSHORE GRADIENTS AND BOUNDARY LAYER TEMPERATURES INCREASING THROUGH WEDNESDAY...LOOK FOR WARMING TREND TO CONTINUE. WOULD NOT BE SURPRISED TO SEE A FEW LOCATIONS EVEN BREAK 90 DEGREES (EVEN NEAR THE COAST) NEXT COUPLE OF DAYS. AS A RESULT...MAY SEE A FEW RECORDS BROKEN EACH DAY...AND WILL HEADLINE ZONES FOR NEAR RECORD HIGHS IN EVENING UPDATE. WARM CONDITIONS EXPECTED TO CONTINUE INTO THURSDAY...THEN A GRADUAL COOLING TREND INTO THE WEEKEND...ESPECIALLY ALONG THE COAST. LAX 0000. GOMBERG .LOX...WIND ADVISORY (SEE LAXNPWLOX).