Red Flag Warning 7, NWS San Diego, CA

000 
WWUS86 KSGX 060328
RFWSGX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
828 PM PDT TUE JUN 5 2007

...RED FLAG WARNING FOR DESERT AREAS OF SOUTHWEST CALIFORNIA
THROUGH 9 PM WEDNESDAY EVENING DUE TO FREQUENT WIND GUSTS OVER
35 MPH AND RELATIVE HUMIDITY BELOW 15 PERCENT...

.A STRONG TROUGH WILL MOVE ACROSS CENTRAL CALIFORNIA TONIGHT AND
NEVADA ON WEDNESDAY. THIS WILL CAUSE STRONG GUSTY WINDS OVER THE
DESERTS THIS AFTERNOON THAT WILL CONTINUE THROUGH WEDNESDAY
EVENING. HUMIDITY HAS ALREADY FALLEN BELOW 15 PERCENT AT MOST
LOCATIONS AND POOR RECOVERY IS EXPECTED TONIGHT. HUMIDITY WILL BE
BELOW 15 PERCENT AGAIN FOR MOST OF WEDNESDAY.

CAZ260>262-061600-
/O.CON.KSGX.FW.W.0007.000000T0000Z-070607T0400Z/
VICTOR VALLEY-APPLE VALLEY-LUCERNE VALLEY-YUCCA VALLEY-
MORONGO VALLEY-COACHELLA VALLEY-
INCLUDING THE PALM SPRINGS SOUTH COAST DESERT DISTRICT-
SAN DIEGO COUNTY DESERTS-
INCLUDING THE ANZA BORREGO DESERT STATE PARK-
828 PM PDT TUE JUN 5 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT WEDNESDAY...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT WEDNESDAY. 

FREQUENT WIND GUSTS OVER 35 MPH...AND AS HIGH AS 70 MPH...ARE
LIKELY THIS AFTERNOON THROUGH WEDNESDAY EVENING. THE RELATIVE
HUMIDITY WILL BE BELOW 15 PERCENT THIS AFTERNOON AND EVENING.
HUMIDITY RECOVERY OVERNIGHT IS EXPECTED TO BE POOR...INCREASING
ABOVE 25 PERCENT FOR ONE TO THREE HOURS...BEFORE DROPPING BELOW
15 PERCENT AGAIN WEDNESDAY MORNING. WINDS WILL BEGIN TO SUBSIDE
WEDNESDAY AFTERNOON...BUT GUSTS OVER 35 MPH ARE LIKELY TO
CONTINUE THROUGH WEDNESDAY EVENING.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

000 
WWUS86 KSGX 061055
RFWSGX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
355 AM PDT WED JUN 6 2007

...RED FLAG WARNING FOR DESERT AREAS UNTIL 9 PM THIS EVENING FOR 
THE COMBINATION OF RELATIVE HUMIDITY BELOW 15 PERCENT AND WIND
GUSTS GREATER THAN 35 MPH...MAINLY FOR THIS AFTERNOON...

.A TROUGH OF LOW PRESSURE MOVING THROUGH THE GREAT BASIN WILL
BRING STRONG GUSTY WINDS TO THE MOUNTAINS AND DESERTS THROUGH THIS 
EVENING. THE COMBINATION OF THESE WINDS WITH LOW AFTERNOON
RELATIVE HUMIDITIES IN THE DESERTS OF 10 TO 15 PERCENT WILL RESULT 
IN CRITICAL FIRE WEATHER CONDITIONS THIS AFTERNOON.

CAZ260>262-061800-
/O.CON.KSGX.FW.W.0007.000000T0000Z-070607T0400Z/
VICTOR VALLEY-APPLE VALLEY-LUCERNE VALLEY-YUCCA VALLEY-
MORONGO VALLEY-COACHELLA VALLEY-
INCLUDING THE PALM SPRINGS SOUTH COAST DESERT DISTRICT-
SAN DIEGO COUNTY DESERTS-
INCLUDING THE ANZA BORREGO DESERT STATE PARK-
355 AM PDT WED JUN 6 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING FOR THE COMBINATION OF RELATIVE HUMIDITY BELOW 15 PERCENT 
AND WIND GUSTS GREATER THAN 35 MPH MAINLY FOR THIS AFTERNOON...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING.

AREAS OF WEST TO NORTHWEST WINDS 20 TO 30 MPH WILL CONTINUE TODAY
WITH GUSTS TO 40 MPH...GRADUALLY DECREASING TONIGHT. WINDS WILL BE
STRONGEST NEAR THE FOOTHILLS OF THE MOUNTAINS. OVERNIGHT RELATIVE
HUMIDITIES HAVE RECOVERED TO AROUND 35 PERCENT IN THE LOWER
DESERTS AND AROUND 50 PERCENT IN THE UPPER DESERTS. WITH DAYTIME
HEATING...RELATIVE HUMIDITIES WILL FALL TO BETWEEN 10 AND 15
PERCENT THIS AFTERNOON. THE COMBINATION OF LOW RELATIVE HUMIDITIES
AND STRONG GUSTY WINDS THIS AFTERNOON WILL CREATE EXPLOSIVE FIRE
GROWTH POTENTIAL.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

MARTIN

000 
WWUS86 KSGX 061812
RFWSGX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
1112 AM PDT WED JUN 6 2007

CAZ260>262-070400-
/O.CON.KSGX.FW.W.0007.000000T0000Z-070607T0400Z/
VICTOR VALLEY-APPLE VALLEY-LUCERNE VALLEY-YUCCA VALLEY-
MORONGO VALLEY-COACHELLA VALLEY-
INCLUDING THE PALM SPRINGS SOUTH COAST DESERT DISTRICT-
SAN DIEGO COUNTY DESERTS-
INCLUDING THE ANZA BORREGO DESERT STATE PARK-
1112 AM PDT WED JUN 6 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING FOR THE DESERT AREAS DUE TO WINDS GUSTING OVER 35 MPH
AND RELATIVE HUMIDITY BELOW 15 PERCENT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING.

WEST TO NORTHWEST WINDS 25 TO 30 MPH WITH GUSTS TO 50 MPH WILL CONTINUE
INTO THE EVENING HOURS. WINDS WILL BE STRONGEST NEAR THE
FOOTHILLS OF THE MOUNTAINS. RELATIVE HUMIDITY WILL RANGE BETWEEN 7
AND 15 PERCENT. 

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

BALFOUR

000 
WWUS86 KSGX 070402
RFWSGX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
902 PM PDT WED JUN 6 2007


CAZ260>262-070515-
/O.EXP.KSGX.FW.W.0007.000000T0000Z-070607T0400Z/
VICTOR VALLEY-APPLE VALLEY-LUCERNE VALLEY-YUCCA VALLEY-
MORONGO VALLEY-COACHELLA VALLEY-
INCLUDING THE PALM SPRINGS SOUTH COAST DESERT DISTRICT-
SAN DIEGO COUNTY DESERTS-
INCLUDING THE ANZA BORREGO DESERT STATE PARK-
902 PM PDT WED JUN 6 2007

...RED FLAG WARNING HAS EXPIRED...

THE RED FLAG WARNING IS NO LONGER IN EFFECT. 



$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
852 AM PDT TUE JUN 5 2007

.SYNOPSIS...
AN UNSEASONABLY STRONG LOW PRESSURE TROUGH WILL MOVE ACROSS
CALIFORNIA TODAY AND ACROSS NEVADA WEDNESDAY. THIS WILL CAUSE
TEMPERATURES TO DROP 10 TO 15 DEGREES OVER SOUTHERN CALIFORNIA...AND
CREATE STRONG WINDS OVER THE MOUNTAINS AND DESERTS. A HIGH WIND
WATCH IS IN EFFECT THIS AFTERNON THROUGH WEDNESDAY. WEST OF THE
MOUNTAINS...THE MARINE LAYER WILL DEEPEN AND BRING MOSTLY CLOUDY
SKIES AND DRIZZLE. HIGH PRESSURE BUILDING TO THE NORTH WEDNESDAY
NIGHT WILL LOWER THE MARINE LAYER. DRIER AND WARMER CONDITIONS ARE
EXPECTED THURSDAY.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES.

POSITIVE TILT TROUGH PUSHING ONSHORE ACROSS CENTRAL CALIFORNIA THIS
AFTERNOON BUT COLD CORE STAYS FAR TO THE NORTH. 500 MB HEIGHTS OVER
SOUTHWEST CALIFORNIA FALL ABOUT 120 METERS DURING THE NEXT 24 HOURS
BUT VERY LITTLE VORTICITY ADVECTION. THIS COUPLED WITH TERRAIN
BLOCKING OF SAN GORGONIO/SAN BERNARDINO...EXPECT COLD FRONT WILL
STALL AND WEAKEN NORTH OF AREA THROUGH WEDNESDAY. THIS RESULTS IN
MOSTLY A WIND EVENT FOR SW CALIFORNIA. WIND PROGRAM RUN OFF THE 00Z
MODELS YIELDED 60-70 MPH GUSTS FOR MOUNTAINS/HIGH DESERTS THIS
AFTERNOON THROUGH WEDNESDAY. THIS LOOKS VALID BASED ON SURFACE
PRESSURE GRADIENT INCREASING TO 16-20 MB BETWEEN SW CALIFORNIA COAST
AND SW UTAH AND 50KT WINDS AT 700 MB THIS AFTERNOON THROUGH MID
MORNING WEDNESDAY. SMALL CRAFT ADVISORIES ARE ALREADY UP OVER THE
OUTER WATERS. THE HIGH WIND WATCH FOR THE MOUNTAINS AND DESERTS
WILL LIKELY BE UPGRADED TO A HIGH WIND WARNING FOR THIS PERIOD IN
THE AFTERNOON PACKAGE. MARINE LAYER EXPECTED TO DEEPEN RAPIDLY THIS
AFTERNOON AND EVENING...TO BETWEEN 4000-5000 FEET. 12Z NAM12 MODEL
DRIER THAN EARLIER RUN ON GENERATING PRECIPITATION...BUT STILL SHOWS
LIGHT ACCUMULATIONS FROM COASTAL SLOPES WESTWARD. WILL LIKELY EXPAND
AREAS AFFECTED BY DRIZZLE TO INCLUDE COASTAL SLOPES TONIGHT.  THE
CAPPING INVERSION IS ERODED OVERNIGHT SO SHOULD SEE EARLIER BREAK UP
IN STRATUS ON WEDNESDAY. HIGH PRESSURE TEMPORARILY REBUILDING TO THE
NORTH WEDNESDAY NIGHT PUSHES LINGERING FRONTAL TROUGH SOUTH OF
FORECAST AREA...WEAK NORTHEAST FLOW ALOFT AND SUBSIDENCE WARMING
EXPECTED TO LOWER MARINE LAYER DEPTH TO 1500-2000 FEET. A SECOND
UPPER TROUGH MOVES ACROSS AREA ON FRIDAY AND LINGERS THROUGH THE
WEEKEND. THE WEAK LIFTING CAUSED BY THIS TROUGH SHOULD RAISE THE
MARINE LAYER DEPTH AGAIN...BEST ESTIMATE AT THIS TIME IS 2500
FEET...BUT ALSO WEAKEN THE SUBSIDENCE INVERSION...FOR CLEARING
INLAND AREAS BY MID MORNING..AND COAST BY NOON.

&&

.AVIATION...
051500Z...12Z NKX SOUNDING ALONG WITH MDCRS SOUNDINGS AND TOP
REPORTS INDICATE THE MARINE LAYER DEPTH WAS AROUND 2000 FEET THIS
MORNING. THE MARINE LAYER IS EXPECTED TO DEEPEN TO AROUND 3000 FEET
BY THIS AFTERNOON AND 5000 FEET OVERNIGHT IN RESPONSE TO A TROUGH
APPROACHING FROM THE WEST AND A STRENGTHENING COASTAL EDDY.

STRATUS...WITH BASE AROUND 800 FEET MSL...CONTINUES TO PUSH INLAND
THIS MORNING INDICATING SOME THICKENING TAKING PLACE. EXPECT LITTLE
OR NO CLEARING WEST OF THE MOUNTAINS TODAY. BASES SHOULD LIFT TO
AROUND 1500 FEET MSL LATER THIS MORNING AND 1500 TO 2000 FEET THIS
AFTERNOON AND TONIGHT.

ANOTHER ISSUE WILL BE THE DEVELOPING STRONG WEST WINDS ACROSS THE
MOUNTAINS LATER THIS AFTERNOON AND THROUGH THE NIGHT. THIS WILL
LIKELY DEVELOP SOME MOUNTAIN WAVE AND ROTOR ACTIVITY OVER THE DESERT
AREAS NEAR KPSP...KTRM AND L08.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...

HIGH WIND WATCH FOR THE MOUNTAINS AND DESERTS THIS AFTERNOON THROUGH
WEDNESDAY EVENING...SEE LAXNPWSGX.

SMALL CRAFT ADVISORY FOR THE OUTER WATERS FROM THIS EVENING THROUGH
LATE WEDNESDAY EVENING.

&&

PUBLIC...MACKECHNIE
AVIATION/MARINE...WHITLOW

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN DIEGO CA
500 AM PDT TUE JUN 5 2007

CAZ042-043-048-050-055-056-057-058-060-061-062-061200-
ORANGE COUNTY COASTAL AREAS-
SAN DIEGO COUNTY COASTAL AREAS-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY VALLEYS-
SAN BERNARDINO COUNTY MOUNTAINS-
RIVERSIDE COUNTY MOUNTAINS-
SANTA ANA MOUNTAINS AND FOOTHILLS-
SAN DIEGO COUNTY MOUNTAINS-
APPLE AND LUCERNE VALLEYS-
COACHELLA VALLEY-
SAN DIEGO COUNTY DESERTS-
500 AM PDT TUE JUN 5 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR
ALL OF EXTREME SOUTHWESTERN CALIFORNIA.

STRENGTHENING SURFACE PRESSURE GRADIENTS WILL TEAM UP WITH STRONG
WINDS ALOFT TO PRODUCE LOCAL WEST WIND GUSTS IN EXCESS OF 50 MPH IN
SOME MOUNTAIN AND DESERT AREAS LATE THIS AFTERNOON THROUGH WEDNESDAY.

.DAY ONE... TODAY THROUGH TONIGHT.

HIGH WIND WATCH IN EFFECT FROM 2 PM PDT THIS AFTERNOON. THE STRONG
WEST WINDS IN THE MOUNTAINS AND DESERTS WILL PRODUCE LOCALLY
HAZARDOUS DRIVING CONDITIONS FOR MOTORISTS IN HIGH PROFILE VEHICLES.
AREAS OF BLOWING DUST AND SAND WILL REDUCE VISIBILITY IN THE DESERTS
AT TIMES.

.DAYS TWO THROUGH SEVEN... WEDNESDAY THROUGH MONDAY.

HIGH WIND WATCH IN EFFECT THROUGH WEDNESDAY EVENING. THE STRONG
WEST WINDS IN THE MOUNTAINS AND DESERTS WILL PRODUCE LOCALLY
HAZARDOUS DRIVING CONDITIONS FOR MOTORISTS IN HIGH PROFILE
VEHICLES. AREAS OF BLOWING DUST AND SAND WILL REDUCE VISIBILITY
IN THE DESERTS AT TIMES.

.SPOTTER INFORMATION STATEMENT...
SKYWARN WEATHER SPOTTER ACTIVATION IS NOT REQUESTED FOR THIS AREA...
HOWEVER WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

MACKECHNIE