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Antelope Valley
Los Angeles County Valleys
Santa Monica Mountains NRA
Los Angeles County Coast and Downtown
Santa Clarita Region
Dispatch Area Discussion...
926 AM PST WED NOV 25 2009
...GUSTY NORTHEAST WINDS AND VERY LOW HUMIDITIES TO CONTINUE THROUGH
THANKSGIVING DAY...
...POTENTIAL FOR STRONGER OFFSHORE WINDS AND DRY CONDITIONS SUNDAY
INTO MONDAY...
SURFACE HIGH PRESSURE WILL CONTINUE TO GENERATE WEAK TO MODERATE
OFFSHORE WINDS...WARM TEMPERATURES...AND VERY LOW HUMIDITIES THROUGH
THANKSGIVING DAY. THE STRONGEST WINDS TODAY WILL AFFECT THE MOUNTAIN
PASSES AND CANYONS OF LOS ANGELES AND VENTURA COUNTIES... WHERE WIND
GUSTS WILL GENERALLY REMAIN BETWEEN 40 AND 50 MPH. GUSTY NORTHEAST
WINDS WILL CONTINUE TONIGHT INTO THURSDAY MORNING... BUT ARE
EXPECTED TO BE SLIGHTLY WEAKER THAN TODAY. OFFSHORE WINDS ARE
EXPECTED TO DIMINISH CONSIDERABLY BY LATE THURSDAY AFTERNOON.
TEMPERATURES ARE EXPECTED TO CLIMB WELL INTO THE 80S ACROSS MANY
COASTAL AND VALLEY AREAS TODAY AND THURDAY...WITH LONG DURATIONS OF
SINGLE DIGIT HUMIDITIES EACH DAY. IN ADDITION...HUMIDITY RECOVERIES
WILL REMAIN QUITE POOR OVERNIGHT...ESPECIALLY IN THE
FOOTHILLS...MOUNTAINS... AND AREAS EXPOSED TO WINDS. AFTER
COORDINATION WITH LOCAL AGENCIES... A RED FLAG WARNING HAS NOT BEEN
ISSUED DUE TO LIVE FUEL MOISTURES BEING ABOVE CRITICAL LEVELS.
HOWEVER...DEAD FUEL MOISTURES ARE EXTREMELY LOW AND BECAUSE OF THIS
THERE IS STILL A VERY HIGH FIRE DANGER.
A LOW PRESSURE SYSTEM IS EXPECTED TO MOVE INTO NORTHERN CALIFORNIA
ON FRIDAY BRINGING A RETURN OF ONSHORE FLOW...COOLER TEMPERATURES...
AND HIGHER HUMIDITIES TO THE REGION. THIS COLD LOW PRESSURE SYSTEM
HAS THE POTENTIAL TO MOVE INTO SOUTHERN CALIFORNIA ON SATURDAY. AT
THIS TIME...IT LOOKS LIKE THE BEST CHANCE OF PRECIPITATION WILL BE
ACROSS THE MOUNTAINS...BUT A SLIGHT CHANCE OF SHOWERS MAY NEED TO BE
ADDED TO OTHER AREAS AS WE DRAW CLOSER TO THE EVENT. BEHIND THIS
SYSTEM...THERE IS THE POTENTIAL FOR A STRONGER AND MORE WIDESPREAD
OFFSHORE WIND EVENT SUNDAY INTO MONDAY. THIS OFFSHORE WIND EVENT IS
EXPECTED TO BE SOMEWHAT COOLER THAN THIS CURRENT EVENT...BUT HAS THE
POTENTIAL TO BRING ANOTHER ROUND OF DRY AIR INTO THE REGION. THE
HUMIDITY AND WIND COMPONENT OF THE RED FLAG WARNING SYSTEM COULD BE
MET FOR THE SUNDAY INTO MONDAY EVENT...HOWEVER ANY ISSUANCES OF
WATCHES OR WARNINGS WILL REQUIRE COORDINATION WITH AGENCIES ON FUEL
CONDITIONS.
Forecast Issuance time: 930 AM PST WED NOV 25 2009
TODAY...
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....64-69.
24 HR TREND......UP 3.
MIN HUMIDITY........7-12 PERCENT.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......NORTHEAST 15-25 MPH.
MARINE LAYER........NONE.
LAL.................1.
CWR (>0.10 IN)......0 PERCENT.
TONIGHT...
SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....27-37.
MAX HUMIDITY........25-35 PERCENT.
20-FOOT WINDS.......NORTHEAST 10-20 MPH IN THE EVENING...BECOMING
VARIABLE 3-6 MPH.
LAL.................1.
CWR (>0.10 IN)......0 PERCENT.
THANKSGIVING DAY...
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....66-71.
MIN HUMIDITY........7-12 PERCENT.
20-FOOT WINDS.......EAST 10-15 MPH.
LAL.................1.
CWR (>0.10 IN)......0 PERCENT.EXTENDED...
.FRIDAY...MOSTLY CLEAR. LOWS IN THE 30S TO MID 40S. HIGHS IN THE
UPPER 50S TO MID 60S. WEST WINDS 10 TO 20 MPH.
.SATURDAY...MOSTLY CLEAR. LOWS IN THE 30S TO LOWER 40S. HIGHS IN THE
MID 50S TO LOWER 60S. NORTHEAST WINDS 10 TO 20 MPH. LOCAL GUSTS TO
30 MPH.
.SUNDAY...MOSTLY CLEAR. LOWS IN THE UPPER 20S AND 30S. HIGHS IN THE
UPPER 50S TO MID 60S. NORTHEAST WINDS 15 TO 20 MPH. LOCAL GUSTS TO
30 MPH.
Forecast Issuance time: 930 AM PST WED NOV 25 2009
TODAY...
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....77-83.
24 HR TREND......UP 3.
MIN HUMIDITY........5-10 PERCENT.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......NORTHEAST 20-30 MPH WITH LOCAL GUSTS TO 40 MPH BELOW
PASSES AND CANYONS...DIMINISHING TO 15-25 MPH BY
MID AFTERNOON.
MARINE LAYER........NONE.
LAL.................1.
CWR (>0.10 IN)......0 PERCENT.
TONIGHT...
SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....46-56...EXCEPT 57-67 FOOTHILLS.
MAX HUMIDITY........20-30 PERCENT...EXCEPT 10-20 PERCENT FOOTHILLS
AND WINDY AREAS.
20-FOOT WINDS.......NORTHEAST 10-20 MPH WITH LOCAL GUSTS TO 30 MPH
BELOW PASSES AND CANYONS.
LAL.................1.
CWR (>0.10 IN)......0 PERCENT.
THANKSGIVING DAY...
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....78-85.
MIN HUMIDITY........5-10 PERCENT.
20-FOOT WINDS.......NORTHEAST 10-20 MPH WITH LOCAL GUSTS TO 30 MPH
BELOW PASSES AND CANYONS...DIMINISHING BY MID
AFTERNOON.
LAL.................1.
CWR (>0.10 IN)......0 PERCENT.EXTENDED...
.FRIDAY...MOSTLY CLEAR...EXCEPT PATCHY LOW CLOUDS AND FOG ALONG THE
COAST IN THE MORNING. LOWS IN THE UPPER 30S TO MID 50S. HIGHS IN THE
60S TO LOWER 70S. NORTHWEST WINDS 10 TO 20 MPH.
.SATURDAY...WINDY. MOSTLY CLEAR. LOWS IN THE UPPER 30S TO LOWER 50S.
HIGHS IN THE 60S TO LOWER 70S. NORTHEAST WINDS 20 TO 30 MPH. LOCAL
GUSTS TO 50 MPH...STRONGEST VENTURA AND LOS ANGELES COUNTIES.
.SUNDAY...WINDY. MOSTLY CLEAR. LOWS IN THE MID 30S TO LOWER 50S.
HIGHS IN THE 60S TO MID 70S. NORTHEAST WINDS 20 TO 30 MPH. LOCAL
GUSTS TO 50 MPH. STRONGEST VENTURA AND LOS ANGELES COUNTIES.
Forecast Issuance time: 930 AM PST WED NOV 25 2009
TODAY...
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....70-79.
24 HR TREND......UP 3.
MIN HUMIDITY........5-10 PERCENT.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...NORTHEAST 25-35 MPH WITH LOCAL GUSTS TO 45 MPH THROUGH
PASSES AND CANYONS...DIMINISHING TO 15-25 MPH
WITH LOCAL GUSTS TO 35 MPH BY MID AFTERNOON.
RIDGES/UPR SLOPES....NORTHEAST 25-35 MPH WITH LOCAL GUSTS TO 50 MPH
DIMINISHING TO 15-25 MPH WITH LOCAL GUSTS TO 35 MPH
BY MID AFTERNOON.
MARINE LAYER........NONE.
LAL.................1.
CWR (>0.10 IN)......0 PERCENT.
TONIGHT...
SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....55-66.
MAX HUMIDITY........12-25 PERCENT.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...NORTHEAST 15-25 MPH WITH LOCAL GUSTS TO 40 MPH THROUGH
PASSES AND CANYONS.
RIDGES/UPR SLOPES....NORTHEAST 15-25 MPH WITH LOCAL GUSTS TO 40 MPH.
LAL.................1.
CWR (>0.10 IN)......0 PERCENT.
THANKSGIVING DAY...
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....72-82.
MIN HUMIDITY........5-10 PERCENT.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...NORTHEAST 15-25 MPH WITH LOCAL GUSTS TO 40 MPH THROUGH
PASSES AND CANYONS...BECOMING NORTHWEST 10-15 MPH
BY MID AFTERNOON.
RIDGES/UPR SLOPES....NORTHEAST 15-25 MPH WITH LOCAL GUSTS TO 40 MPH...
BECOMING NORTHWEST 10-15 MPH BY MID AFTERNOON.
LAL.................1.
CWR (>0.10 IN)......0 PERCENT.EXTENDED...
.FRIDAY...MOSTLY CLEAR...EXCEPT PATCHY LOW CLOUDS AND FOG ALONG THE
COAST IN THE MORNING. LOWS IN THE UPPER 30S TO MID 50S. HIGHS IN THE
60S TO LOWER 70S. NORTHWEST WINDS 10 TO 20 MPH.
.SATURDAY...WINDY. MOSTLY CLEAR. LOWS IN THE UPPER 30S TO LOWER 50S.
HIGHS IN THE 60S TO LOWER 70S. NORTHEAST WINDS 20 TO 30 MPH. LOCAL
GUSTS TO 50 MPH...STRONGEST VENTURA AND LOS ANGELES COUNTIES.
.SUNDAY...WINDY. MOSTLY CLEAR. LOWS IN THE MID 30S TO LOWER 50S.
HIGHS IN THE 60S TO MID 70S. NORTHEAST WINDS 20 TO 30 MPH. LOCAL
GUSTS TO 50 MPH. STRONGEST VENTURA AND LOS ANGELES COUNTIES.
Forecast Issuance time: 930 AM PST WED NOV 25 2009
TODAY...
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....73-83.
24 HR TREND......UP 3.
MIN HUMIDITY........7-15 PERCENT.
24 HR TREND......DOWN 3.
20-FOOT WINDS.......VARIABLE 3-6 MPH...EXCEPT NORTHEAST 10-20 MPH WITH
LOCAL GUSTS TO 35 MPH FROM MALIBU TO HOLLYWOOD IN THE
MORNING.
MARINE LAYER........NONE.
LAL.................1.
CWR (>0.10 IN)......0 PERCENT.
TONIGHT...
SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....48-58...EXCEPT 60-70 HILLS AND WINDY AREAS.
MAX HUMIDITY........30-40 PERCENT...EXCEPT 12-20 PERCENT WINDY AREAS.
20-FOOT WINDS.......VARIABLE 3-6 MPH...EXCEPT NORTHEAST 10-20 MPH
FROM MALIBU TO THE HOLLYWOOD HILLS.
LAL.................1.
CWR (>0.10 IN)......0 PERCENT.
THANKSGIVING DAY...
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....74-84.
MIN HUMIDITY........6-12 PERCENT.
20-FOOT WINDS.......VARIABLE 3-6 MPH...EXCEPT NORTHEAST 10-20 MPH
FROM MALIBU TO HOLLYWOOD IN THE MORNING...BECOMING
WEST AROUND 10 MPH BY LATE AFTERNOON.
LAL.................1.
CWR (>0.10 IN)......0 PERCENT.EXTENDED...
.FRIDAY...MOSTLY CLEAR...EXCEPT PATCHY LOW CLOUDS AND FOG ALONG THE
COAST IN THE MORNING. LOWS IN THE UPPER 30S TO MID 50S. HIGHS IN THE
60S TO LOWER 70S. NORTHWEST WINDS 10 TO 20 MPH.
.SATURDAY...WINDY. MOSTLY CLEAR. LOWS IN THE UPPER 30S TO LOWER 50S.
HIGHS IN THE 60S TO LOWER 70S. NORTHEAST WINDS 20 TO 30 MPH. LOCAL
GUSTS TO 50 MPH...STRONGEST VENTURA AND LOS ANGELES COUNTIES.
.SUNDAY...WINDY. MOSTLY CLEAR. LOWS IN THE MID 30S TO LOWER 50S.
HIGHS IN THE 60S TO MID 70S. NORTHEAST WINDS 20 TO 30 MPH. LOCAL
GUSTS TO 50 MPH. STRONGEST VENTURA AND LOS ANGELES COUNTIES.
Forecast Issuance time: 930 AM PST WED NOV 25 2009
TODAY...
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....70-76.
24 HR TREND......UP 3.
MIN HUMIDITY........6-12 PERCENT.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......NORTHEAST 20-30 MPH WITH GUSTS TO 45 MPH...DIMINISHING
TO 15-25 MPH WITH GUSTS TO 35 MPH BY MID AFTERNOON.
MARINE LAYER........NONE.
LAL.................1.
CWR (>0.10 IN)......0 PERCENT.
TONIGHT...
SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....57-64.
MAX HUMIDITY........12-20 PERCENT.
20-FOOT WINDS.......NORTHEAST 15-25 MPH WITH LOCAL GUSTS TO 35 MPH.
LAL.................1.
CWR (>0.10 IN)......0 PERCENT.
THANKSGIVING DAY...
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....72-78.
MIN HUMIDITY........6-12 PERCENT.
20-FOOT WINDS.......NORTHEAST 15-25 MPH WITH GUSTS TO 35 MPH...DIMINISHING
TO 10-20 MPH BY MID AFTERNOON.
LAL.................1.
CWR (>0.10 IN)......0 PERCENT.EXTENDED...
.FRIDAY...MOSTLY CLEAR...EXCEPT PATCHY LOW CLOUDS AND FOG ALONG THE
COAST IN THE MORNING. LOWS IN THE UPPER 30S TO MID 50S. HIGHS IN THE
60S TO LOWER 70S. NORTHWEST WINDS 10 TO 20 MPH.
.SATURDAY...WINDY. MOSTLY CLEAR. LOWS IN THE UPPER 30S TO LOWER 50S.
HIGHS IN THE 60S TO LOWER 70S. NORTHEAST WINDS 20 TO 30 MPH. LOCAL
GUSTS TO 50 MPH...STRONGEST VENTURA AND LOS ANGELES COUNTIES.
.SUNDAY...WINDY. MOSTLY CLEAR. LOWS IN THE MID 30S TO LOWER 50S.
HIGHS IN THE 60S TO MID 70S. NORTHEAST WINDS 20 TO 30 MPH. LOCAL
GUSTS TO 50 MPH. STRONGEST VENTURA AND LOS ANGELES COUNTIES.
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