Alert archive / California / Red Flag Warnings in 2008

Red Flag Warning 25, NWS San Diego, CA

October 12, 20084 counties in California

NWS San Diego, CA issued this red flag warning at Oct 12, 2008, 3:45 AM PDT for 4 counties in California. It took effect at Oct 12, 2008, 10:00 AM PDT. It was in force for 6 days. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 12, 2008, 3:45 AM PDT (10:45 UTC)
In effect from
Oct 12, 2008, 10:00 AM PDT
Expired
Oct 17, 2008, 10:00 PM PDT
In force
6 days
Issued by
NWS San Diego, CA

Counties Orange County, CA, Riverside County, CA, San Bernardino County, CA, San Diego County, CA

The radar

The Santa Ana Mts radar (KSOX), 88 km from the middle of the area, began a volume at 10:45 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

San Diego, CA (KNKX), launched 00:00Z, 10.8 hours before the alert went out and 124 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, San Diego, CA at 00:00Z on 2008-10-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, San Diego, CA at 00:00Z on 2008-10-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -37 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1886 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
-37 m²/s²
0-3 km storm-relative helicity
-62 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS86 KSGX 121045
RFWSGX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
345 AM PDT SUN OCT 12 2008

...DRY OFFSHORE SANTA ANA WINDS AND CRITICAL FIRE WEATHER CONDITIONS 
AT TIMES THROUGH TUESDAY...

.UPPER LEVEL LOW PRESSURE OVER THE CENTRAL AND SOUTHERN ROCKIES
AND SURFACE HIGH PRESSURE OVER THE GREAT BASIN WILL COMBINE TO
BRING PERIODS OF MODERATE TO LOCALLY STRONG SANTA ANA WINDS AT
TIMES THROUGH TUESDAY WITH THE MOST WIDESPREAD CRITICAL FIRE
WEATHER CONDITIONS MONDAY MORNING THROUGH TUESDAY AFTERNOON.

CAZ242-248-257-122100-
/O.UPG.KSGX.FW.A.0006.081013T1000Z-081015T0400Z/
/O.NEW.KSGX.FW.W.0025.081012T1700Z-081015T0100Z/
ORANGE COUNTY COASTAL AREAS-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SANTA ANA MOUNTAINS-
INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL
FOREST-
345 AM PDT SUN OCT 12 2008

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 6 PM PDT
TUESDAY FOR RELATIVE HUMIDITIES BELOW 15 PERCENT AND WIND GUSTS 
GREATER THAN 35 MPH...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 6 PM PDT
TUESDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

AREAS OF NORTHEAST WINDS 20 TO 30 MPH DEVELOPING THIS MORNING WITH
GUSTS TO 50 MPH THROUGH AND BELOW PASSES AND CANYONS. RELATIVE
HUMIDITIES WILL FALL BELOW 15 PERCENT BY LATE MORNING AND BELOW 10
PERCENT IN THE AFTERNOON. SLIGHT RECOVERY OF HUMIDITIES TONIGHT.

WINDS WILL STRENGTHEN TONIGHT THROUGH EARLY MONDAY AFTERNOON WITH
WIDESPREAD NORTHEAST WINDS 20 TO 30 MPH WITH GUSTS TO 60 MPH
THROUGH AND BELOW PASSES AND CANYONS. ANOTHER ROUND OF STRONGER
WINDS FOR LATE MONDAY NIGHT THROUGH TUESDAY MORNING WITH GUSTS TO
55 MPH THROUGH AND BELOW PASSES AND CANYSONS. LOWEST DAYTIME
HUMIDITIES BELOW 10 PERCENT WITH ONLY MINOR NIGHTTIME RECOVERY TO
15 TO 25 PERCENT.

FOR MIDWEEK...WARM AND DRY BUT WITH WEAKER WINDS.

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.

$$

CAZ250-255-256-258-122100-
/O.UPG.KSGX.FW.A.0006.081013T1000Z-081015T0400Z/
/O.NEW.KSGX.FW.W.0025.081013T1300Z-081015T0100Z/
SAN DIEGO COUNTY INLAND VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF
THE SAN BERNARDINO NATIONAL FOREST-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE SAN JACINTO RANGER DISTRICT OF THE SAN BERNARDINO
NATIONAL FOREST-SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE PALOMAR AND DESCANSO RANGER DISTRICTS OF THE
CLEVELAND NATIONAL FOREST-
345 AM PDT SUN OCT 12 2008

...RED FLAG WARNING IN EFFECT FROM 6 AM MONDAY TO 6 PM PDT
TUESDAY FOR RELATIVE HUMIDITIES BELOW 15 PERCENT AND WIND GUSTS 
GREATER THAN 35 MPH...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 6 AM MONDAY TO 6 PM PDT
TUESDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

AREAS NORTHEAST WINDS DEVELOPING TODAY WITH LOCAL GUSTS TO 35 MPH
AT TIMES THROUGH TONIGHT. RELATIVE HUMIDITIES WILL FALL TO AROUND
15 PERCENT THIS AFTERNOON...THEN RECOVER SLIGHTLY TONIGHT.

WINDS WILLS STRENGTHEN MONDAY MORNING WITH WIDESPREAD NORTHEAST
WINDS 15 TO 25 MPH THROUGH MONDAY AFTERNOON WITH GUSTS TO 50 MPH AT
TIMES THROUGH AND BELOW PASSES AND CANYONS. GUSTY OFFSHORE WINDS
WILL CONTINUE THROUGH TUESDAY AFTERNOON WITH GUSTS TO 45 MPH
THROUGH AND BELOW PASSES AND CANYONS AT TIMES. LOWEST DAYTIME
HUMIDITIES BELOW 10 PERCENT WITH ONLY MINOR NIGHTTIME RECOVERY TO
15 TO 25 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.

$$

MARTIN
13 follow-up statements
000 
WWUS86 KSGX 122049
RFWSGX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
149 PM PDT SUN OCT 12 2008

...DRY OFFSHORE SANTA ANA WINDS AND CRITICAL FIRE WEATHER
CONDITIONS AT TIMES THROUGH TUESDAY...

.UPPER LEVEL LOW PRESSURE OVER THE CENTRAL AND SOUTHERN ROCKIES
AND SURFACE HIGH PRESSURE OVER THE GREAT BASIN WILL COMBINE TO
BRING PERIODS OF MODERATE TO LOCALLY STRONG SANTA ANA WINDS AT
TIMES THROUGH TUESDAY WITH THE MOST WIDESPREAD CRITICAL FIRE
WEATHER CONDITIONS MONDAY MORNING THROUGH TUESDAY AFTERNOON.

CAZ242-248-257-131000-
/O.CON.KSGX.FW.W.0025.000000T0000Z-081015T0100Z/
ORANGE COUNTY COASTAL AREAS-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SANTA ANA MOUNTAINS-
INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL
FOREST-
149 PM PDT SUN OCT 12 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT TUESDAY FOR
RELATIVE HUMIDITIES BELOW 15 PERCENT AND WIND GUSTS GREATER THAN
35 MPH...

AREAS OF NORTHEAST WINDS 15 TO 25 MPH CONTINUING THIS AFTERNOON
WITH GUSTS TO 35 MPH IN MANY AREAS AND GUSTS TO 50 MPH AT TIMES IN
THE FAVORED LOCATIONS. RELATIVE HUMIDITIES ARE BELOW 15 PERCENT IN
MOST AREAS AND BELOW 10 PERCENT IN THE FOOTHILLS. SLIGHT RECOVERY
OF HUMIDITIES TONIGHT.

WINDS WILL STRENGTHEN TONIGHT THROUGH EARLY MONDAY AFTERNOON WITH
WIDESPREAD NORTHEAST WINDS 20 TO 30 MPH WITH GUSTS TO 60 MPH
THROUGH AND BELOW PASSES AND CANYONS. ANOTHER ROUND OF STRONGER
WINDS FOR LATE MONDAY NIGHT THROUGH TUESDAY MORNING WITH GUSTS TO
50 MPH THROUGH AND BELOW PASSES AND CANYSONS. LOWEST DAYTIME
HUMIDITIES BELOW 10 PERCENT WITH ONLY MINOR NIGHTTIME RECOVERY TO
15 TO 25 PERCENT ON MONDAY NIGHT.

FOR MIDWEEK...CONTINUED WARM AND DRY BUT WITH WEAKER WINDS.

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.

$$

CAZ250-255-256-258-131000-
/O.CON.KSGX.FW.W.0025.081013T1300Z-081015T0100Z/
SAN DIEGO COUNTY INLAND VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF
THE SAN BERNARDINO NATIONAL FOREST-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE SAN JACINTO RANGER DISTRICT OF THE SAN BERNARDINO
NATIONAL FOREST-SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE PALOMAR AND DESCANSO RANGER DISTRICTS OF THE
CLEVELAND NATIONAL FOREST-
149 PM PDT SUN OCT 12 2008

...RED FLAG WARNING REMAINS IN EFFECT FROM 6 AM MONDAY TO 6 PM
PDT TUESDAY FOR RELATIVE HUMIDITIES BELOW 15 PERCENT AND WIND GUSTS
GREATER THAN 35 MPH...

AREAS NORTHEAST WINDS DEVELOPING TODAY WITH LOCAL GUSTS TO 35 MPH
AT TIMES THROUGH TONIGHT. RELATIVE HUMIDITIES WILL FALL TO AROUND
15 PERCENT THIS AFTERNOON...THEN RECOVER SLIGHTLY TONIGHT.

WINDS WILL STRENGTHEN MONDAY MORNING WITH WIDESPREAD NORTHEAST
WINDS 20 TO 30 MPH THROUGH MONDAY AFTERNOON WITH GUSTS TO 55 MPH
AT TIMES THROUGH AND BELOW PASSES AND CANYONS. GUSTY OFFSHORE
WINDS WILL CONTINUE THROUGH TUESDAY AFTERNOON WITH GUSTS TO 45 MPH
THROUGH AND BELOW PASSES AND CANYONS AT TIMES. LOWEST DAYTIME
HUMIDITIES BELOW 10 PERCENT ARE EXPECTED WITH ONLY MINOR NIGHTTIME
RECOVERY TO 15 TO 25 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.

$$

PG
000 
WWUS86 KSGX 130757
RFWSGX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
1257 AM PDT MON OCT 13 2008

CAZ250-255-256-258-132100-
/O.EXT.KSGX.FW.W.0025.081013T0757Z-081015T0100Z/
SAN DIEGO COUNTY INLAND VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF
THE SAN BERNARDINO NATIONAL FOREST-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE SAN JACINTO RANGER DISTRICT OF THE SAN BERNARDINO
NATIONAL FOREST-SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE PALOMAR AND DESCANSO RANGER DISTRICTS OF THE
CLEVELAND NATIONAL FOREST-
1257 AM PDT MON OCT 13 2008

...RED FLAG WARNING NOW IN EFFECT UNTIL 6 PM PDT TUESDAY...

THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 6 PM PDT TUESDAY. 

UPPER LEVEL LOW PRESSURE OVER THE CENTRAL AND SOUTHERN ROCKIES AND
SURFACE HIGH PRESSURE OVER THE GREAT BASIN WILL COMBINE TO BRING
PERIODS OF MODERATE TO LOCALLY STRONG SANTA ANA WINDS AND VERY DRY
CONDITIONS THROUGH TUESDAY.

EXPECT NORTHEAST WINDS 20 TO 30 MPH WITH GUSTS TO 60 MPH AT TIMES
THROUGH AND BELOW PASSES AND CANYONS. LOWEST DAYTIME HUMIDITIES
BELOW 10 PERCENT ARE EXPECTED WITH ONLY MINOR NIGHTTIME RECOVERY
TO 15 TO 25 PERCENT.

THOUGH OFFSHORE WINDS WILL GENERALLY DECREASE TUESDAY AFTERNOON...
WARM TEMPERATURES...STRONG THERMAL MIXING AND LOW HUMIDITIES
WILL PROLONG THE FIRE POTENTIAL UNTIL 6 PM TUESDAY.

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.

$$

CAZ242-248-257-132100-
/O.CON.KSGX.FW.W.0025.000000T0000Z-081015T0100Z/
ORANGE COUNTY COASTAL AREAS-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SANTA ANA MOUNTAINS-
INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL
FOREST-
1257 AM PDT MON OCT 13 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT TUESDAY...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT TUESDAY. 

UPPER LEVEL LOW PRESSURE OVER THE CENTRAL AND SOUTHERN ROCKIES
AND SURFACE HIGH PRESSURE OVER THE GREAT BASIN WILL COMBINE TO
BRING PERIODS OF MODERATE TO LOCALLY STRONG SANTA ANA WINDS AND
VERY DRY CONDITIONS THROUGH TUESDAY.

EXPECT NORTHEAST WINDS 20 TO 30 MPH WITH GUSTS TO 60 MPH AT TIMES
THROUGH AND BELOW PASSES AND CANYONS. LOWEST DAYTIME HUMIDITIES
BELOW 10 PERCENT ARE EXPECTED WITH ONLY MINOR NIGHTTIME RECOVERY
TO 15 TO 25 PERCENT.

THOUGH OFFSHORE WINDS WILL GENERALLY DECREASE TUESDAY AFTERNOON...
WARM TEMPERATURES...STRONG THERMAL MIXING AND LOW HUMIDITIES
WILL PROLONG THE FIRE POTENTIAL UNTIL 6 PM TUESDAY.

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.

$$

MACKECHNIE
000 
WWUS86 KSGX 130841
RFWSGX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
141 AM PDT MON OCT 13 2008

CAZ242-248-250-255>258-132145-
/O.CON.KSGX.FW.W.0025.000000T0000Z-081015T0100Z/
ORANGE COUNTY COASTAL AREAS-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY INLAND VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF
THE SAN BERNARDINO NATIONAL FOREST-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE SAN JACINTO RANGER DISTRICT OF THE SAN BERNARDINO
NATIONAL FOREST-SANTA ANA MOUNTAINS-
INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL
FOREST-SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE PALOMAR AND DESCANSO RANGER DISTRICTS OF THE
CLEVELAND NATIONAL FOREST-
141 AM PDT MON OCT 13 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT TUESDAY...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT TUESDAY. 

UPPER LEVEL LOW PRESSURE OVER THE CENTRAL AND SOUTHERN ROCKIES
AND SURFACE HIGH PRESSURE OVER THE GREAT BASIN WILL COMBINE TO
BRING PERIODS OF MODERATE TO LOCALLY STRONG SANTA ANA WINDS AND
VERY DRY CONDITIONS THROUGH TUESDAY.

EXPECT NORTHEAST WINDS 20 TO 30 MPH WITH GUSTS TO 60 MPH AT TIMES
THROUGH AND BELOW PASSES AND CANYONS. LOWEST DAYTIME HUMIDITIES
BELOW 10 PERCENT ARE EXPECTED WITH ONLY MINOR NIGHTTIME RECOVERY
TO 15 TO 25 PERCENT.

THOUGH OFFSHORE WINDS WILL GENERALLY DECREASE TUESDAY AFTERNOON...
WARM TEMPERATURES...STRONG THERMAL MIXING AND LOW HUMIDITIES WILL
PROLONG THE FIRE POTENTIAL UNTIL 6 PM TUESDAY.

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.

$$

MACKECHNIE
000 
WWUS86 KSGX 132038
RFWSGX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
138 PM PDT MON OCT 13 2008

CAZ242-248-250-255>258-140945-
/O.CON.KSGX.FW.W.0025.000000T0000Z-081015T0100Z/
ORANGE COUNTY COASTAL AREAS-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY INLAND VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF
THE SAN BERNARDINO NATIONAL FOREST-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE SAN JACINTO RANGER DISTRICT OF THE SAN BERNARDINO
NATIONAL FOREST-SANTA ANA MOUNTAINS-
INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL
FOREST-SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE PALOMAR AND DESCANSO RANGER DISTRICTS OF THE
CLEVELAND NATIONAL FOREST-
138 PM PDT MON OCT 13 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT TUESDAY...

A RED FLAG WARNING FOR LOW RELATIVE HUMIDITIES AND MODERATE TO STRONG
OFFSHORE WINDS REMAINS IN EFFECT UNTIL 6 PM PDT TUESDAY.

UPPER LEVEL LOW PRESSURE OVER THE CENTRAL AND SOUTHERN ROCKIES
AND SURFACE HIGH PRESSURE OVER THE GREAT BASIN WILL COMBINE TO
BRING PERIODS OF MODERATE TO LOCALLY STRONG SANTA ANA WINDS AND
VERY DRY CONDITIONS THROUGH TUESDAY.

EXPECT NORTHEAST WINDS 20 TO 30 MPH WITH GUSTS TO 60 MPH OR MORE AT
TIMES THROUGH AND BELOW PASSES AND CANYONS. LOWEST DAYTIME HUMIDITIES
BELOW 10 PERCENT ARE EXPECTED WITH ONLY MINOR NIGHTTIME RECOVERY
TO 15 TO 25 PERCENT.

THOUGH OFFSHORE WINDS WILL GENERALLY DECREASE TUESDAY AFTERNOON...WARM
CONDITIONS...STRONG THERMAL MIXING AND LOW HUMIDITIES WILL PROLONG
THE FIRE POTENTIAL UNTIL 6 PM TUESDAY.

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 CONDITIONS WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

PG
000 
WWUS86 KSGX 140815
RFWSGX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
115 AM PDT TUE OCT 14 2008

CAZ242-248-250-255>258-142115-
/O.EXT.KSGX.FW.W.0025.000000T0000Z-081016T0500Z/
ORANGE COUNTY COASTAL AREAS-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY INLAND VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF
THE SAN BERNARDINO NATIONAL FOREST-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE SAN JACINTO RANGER DISTRICT OF THE SAN BERNARDINO
NATIONAL FOREST-SANTA ANA MOUNTAINS-
INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL
FOREST-SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE PALOMAR AND DESCANSO RANGER DISTRICTS OF THE
CLEVELAND NATIONAL FOREST-
115 AM PDT TUE OCT 14 2008

...RED FLAG WARNING NOW IN EFFECT UNTIL 10 PM PDT WEDNESDAY...

THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 10 PM PDT WEDNESDAY.

THE SANTA ANA WILL CONTINUE TO CAUSE STRONG WINDS...LOW RELATIVE
HUMIDITY...AND EXPLOSIVE FIRE GROWTH POTENTIAL TODAY. MOST WINDS
WILL BE NORTHEAST 15 TO 30 MPH WITH OCCASIONAL LOCAL GUSTS TO 40
MPH. STRONGER GUSTS TO 60 MPH WILL OCCUR BELOW THE CAJON PASS IN
THE INLAND EMPIRE...AND THROUGH AND BELOW THE CANYONS OF THE SANTA
ANA MOUNTAINS. WINDS WILL DECREASE LATE THIS AFTERNOON AS PRESSURE
GRADIENTS RELAX FROM 12 MB TO 6 MB. MOST HUMIDITIES WILL BE BELOW
10 PERCENT THROUGHOUT THE DAY WITH MINOR RECOVERY TONIGHT.

WEAKER OFFSHORE FLOW IS EXPECTED WEDNESDAY WITH WINDS DECREASING TO
10 TO 20 MPH WITH LOCAL GUSTS TO 40 MPH. HOWEVER...HUMIDITY WILL
REMAIN VERY LOW. ALSO...HOT DAYTIME TEMPERATURES WILL CREATE
STRONG THERMAL MIXING AND THE POTENTIAL FOR PLUME DOMINATED FIRES.
FOR THESE REASONS THE RED FLAG WARNING EXTENDS THROUGH WEDNESDAY.

WARM...DRY...LOCALLY BREEZY CONDITIONS ARE EXPECTED THURSDAY AND
FRIDAY BUT RED FLAG CONDITIONS ARE NOT EXPECTED AT THIS TIME.

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.

$$

MACKECHNIE
000 
WWUS86 KSGX 142015
RFWSGX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
115 PM PDT TUE OCT 14 2008

CAZ242-248-250-255>258-151015-
/O.CON.KSGX.FW.W.0025.000000T0000Z-081016T0500Z/
ORANGE COUNTY COASTAL AREAS-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY INLAND VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF
THE SAN BERNARDINO NATIONAL FOREST-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE SAN JACINTO RANGER DISTRICT OF THE SAN BERNARDINO
NATIONAL FOREST-SANTA ANA MOUNTAINS-
INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL
FOREST-SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE PALOMAR AND DESCANSO RANGER DISTRICTS OF THE
CLEVELAND NATIONAL FOREST-
115 PM PDT TUE OCT 14 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT WEDNESDAY...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT WEDNESDAY FOR
GUSTY OFFSHORE WINDS AND PERSISTENT LOW RELATIVE HUMIDITIES.

THE SANTA ANA WILL CONTINUE TO CAUSE STRONG WINDS...LOW RELATIVE
HUMIDITY...AND EXPLOSIVE FIRE GROWTH POTENTIAL THIS AFTERNOON AND
EVENING. MOST WINDS WILL BE NORTHEAST 15 TO 30 MPH WITH
OCCASIONAL LOCAL GUSTS TO 40 MPH. STRONGER GUSTS TO 60 MPH WILL
OCCUR AT TIMES THROUGH AND BELOW THE CANYONS OF THE SANTA ANA
MOUNTAINS. WINDS WILL DECREASE OVERNIGHT AS PRESSURE GRADIENTS
WEAKEN. HUMIDITIES IN MANY LOCATIONS WILL BE BELOW 10 PERCENT
THROUGHOUT THE DAY WITH MINOR RECOVERY TONIGHT.

WEAKER OFFSHORE FLOW IS EXPECTED WEDNESDAY WITH WINDS DECREASING
TO 10 TO 20 MPH WITH LOCAL GUSTS TO 35 MPH. HOWEVER...LOW
HUMIDITIES AND HIGHER DAYTIME TEMPERATURES WILL CREATE STRONG
THERMAL MIXING AND THE POTENTIAL FOR PLUME DOMINATED FIRES. FOR
THESE REASONS THE RED FLAG WARNING CONTINUES THROUGH WEDNESDAY.

WARM...DRY...LOCALLY BREEZY CONDITIONS ARE EXPECTED THURSDAY AND
FRIDAY.

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.

$$

PG
000 
WWUS86 KSGX 150945
RFWSGX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
245 AM PDT WED OCT 15 2008

CAZ242-248-250-255>258-152100-
/O.CON.KSGX.FW.W.0025.000000T0000Z-081016T0500Z/
ORANGE COUNTY COASTAL AREAS-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY INLAND VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF
THE SAN BERNARDINO NATIONAL FOREST-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE SAN JACINTO RANGER DISTRICT OF THE SAN BERNARDINO
NATIONAL FOREST-SANTA ANA MOUNTAINS-
INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL
FOREST-SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE PALOMAR AND DESCANSO RANGER DISTRICTS OF THE
CLEVELAND NATIONAL FOREST-
245 AM PDT WED OCT 15 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING FOR 10 OR MORE HOURS OF RELATIVE HUMIDITIES BELOW 10 
PERCENT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING. 

OFFSHORE WINDS WILL WEAKEN WITH LOCAL WIND GUSTS TO AROUND 30
MPH...MAINLY THROUGH AND BELOW PASSES AND CANYONS THROUGH THIS
MORNING. HIGH PRESSURE ALOFT WILL BRING WARMER DAYTIME
TEMPERATURES. THESE WARMER TEMPERATURES COMBINED WITH A VERY DRY
ATMOSPHERE WILL BRING 10 OR MORE HOURS OF RELATIVE HUMIDITIES
BELOW 10 PERCENT FOR INLAND AREAS TODAY WITH LOWEST RELATIVE
HUMIDITIES IN THE INLAND VALLEYS AND ON LOWER COASTAL MOUNTAIN 
SLOPES.

SIMILAR CONDITIONS ARE EXPECTED TO CONTINUE THURSDAY AND FRIDAY
WITH CONTINUED POOR OVERNIGHT RECOVERY OF HUMIDITIES FOR INLAND
AREAS AND SEVERAL HOURS OF RELATIVE HUMIDITIES BELOW 10 PERCENT
FROM LATE MORNING THROUGH EARLY EVENING EACH DAY. THERE WILL
CONTINUE TO BE WEAK OFFSHORE WINDS AT TIMES THROUGH FRIDAY
MORNING WITH GUSTS TO AROUND 25 MPH AT TIMES THROUGH AND BELOW
PASSES AND CANYONS. GREATEST COVERAGE FOR THESE WINDS WILL BE IN
AREAS FAVORED FOR EASTERLY OFFSHORE FLOW...THROUGH THE BANNING
PASS AND IN THE SAN DIEGO COUNTY MOUNTAINS AND INLAND VALLEYS.

A WEAK TROUGH OF LOW PRESSURE IS EXPECTED TO BRING COOLING AND
HIGHER HUMIDITIES FOR THE WEEKEND.

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 152004
RFWSGX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
104 PM PDT WED OCT 15 2008

CAZ248-250-255>258-160500-
/O.EXT.KSGX.FW.W.0025.000000T0000Z-081018T0500Z/
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY INLAND VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF
THE SAN BERNARDINO NATIONAL FOREST-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE SAN JACINTO RANGER DISTRICT OF THE SAN BERNARDINO
NATIONAL FOREST-SANTA ANA MOUNTAINS-
INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL
FOREST-SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE PALOMAR AND DESCANSO RANGER DISTRICTS OF THE
CLEVELAND NATIONAL FOREST-
104 PM PDT WED OCT 15 2008

...RED FLAG WARNING NOW IN EFFECT UNTIL 10 PM PDT FRIDAY
FOR PROLONGED PERIODS OF LOW RELATIVE HUMIDITIES...

THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 10 PM PDT FRIDAY. 

OFFSHORE WINDS WILL CONTINUE TO WEAKEN THIS AFTERNOON AND
TONIGHT...WITH LOCAL WIND GUSTS OF 20 TO 30 MPH...MAINLY IN THE
MOST WIND PRONE AREAS. HIGH PRESSURE ALOFT WILL BRING WARMER
DAYTIME TEMPERATURES. THESE WARMER TEMPERATURES COMBINED WITH A
VERY DRY ATMOSPHERE WILL BRING 10 OR MORE HOURS OF RELATIVE
HUMIDITIES BELOW 10 PERCENT FOR INLAND AREAS WITH LOWEST RELATIVE
HUMIDITIES IN THE INLAND VALLEYS AND ON LOWER COASTAL MOUNTAIN
SLOPES.

SIMILAR CONDITIONS ARE EXPECTED TO CONTINUE THURSDAY AND FRIDAY
WITH CONTINUED POOR OVERNIGHT RECOVERY OF HUMIDITIES FOR INLAND
AREAS AND SEVERAL HOURS OF RELATIVE HUMIDITIES BELOW 10 PERCENT
FROM LATE MORNING THROUGH EARLY EVENING EACH DAY. THERE WILL
CONTINUE TO BE WEAK OFFSHORE WINDS AT TIMES THROUGH FRIDAY
MORNING WITH GUSTS TO AROUND 25 MPH AT TIMES IN THE WIND PRONE
AREAS. GREATEST COVERAGE FOR THESE WINDS WILL BE IN AREAS FAVORED
FOR EASTERLY OFFSHORE FLOW...THROUGH THE BANNING PASS AND IN THE
SAN DIEGO COUNTY MOUNTAINS AND INLAND VALLEYS.

A WEAK TROUGH OF LOW PRESSURE IS EXPECTED TO BRING COOLING AND
HIGHER HUMIDITIES FOR THE WEEKEND.

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

$$

CAZ242-160500-
/O.CON.KSGX.FW.W.0025.000000T0000Z-081016T0500Z/
ORANGE COUNTY COASTAL AREAS-
104 PM PDT WED OCT 15 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING DUE TO CONTINUING LOW HUMIDITIES...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING. 

OFFSHORE WINDS HAVE WEAKENED SIGNIFICANTLY TODAY BUT RELATIVE
HUMIDITIES REMAIN LOW IN MUCH OF ORANGE COUNTY. LIGHT WINDS WILL
CONTINUE TONIGHT BUT BY THURSDAY MORNING HUMIDITIES WILL INCREASE
AND THE FIRE DANGER WILL DECREASE. CONDITIONS ARE EXPECTED TO
IMPROVE THURSDAY AND FRIDAY WITH OVERNIGHT RECOVERY OF HUMIDITIES
INCREASING EACH NIGHT.

A WEAK TROUGH OF LOW PRESSURE IS EXPECTED TO BRING COOLING AND
HIGHER HUMIDITIES FOR THE WEEKEND.

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

$$

PG
000 
WWUS86 KSGX 160455
RFWSGX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
955 PM PDT WED OCT 15 2008

CAZ242-160600-
/O.EXP.KSGX.FW.W.0025.000000T0000Z-081016T0500Z/
ORANGE COUNTY COASTAL AREAS-
955 PM PDT WED OCT 15 2008

...RED FLAG WARNING WILL EXPIRE AT 10 PM PDT THIS EVENING...

THE RED FLAG WARNING FOR THE ORANGE COUNTY COASTAL AREAS WILL
EXPIRE AT 10 PM PDT THIS EVENING.

$$

CAZ248-250-255>258-161700-
/O.CON.KSGX.FW.W.0025.000000T0000Z-081018T0500Z/
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY INLAND VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF
THE SAN BERNARDINO NATIONAL FOREST-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE SAN JACINTO RANGER DISTRICT OF THE SAN BERNARDINO
NATIONAL FOREST-SANTA ANA MOUNTAINS-
INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL
FOREST-SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE PALOMAR AND DESCANSO RANGER DISTRICTS OF THE
CLEVELAND NATIONAL FOREST-
955 PM PDT WED OCT 15 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT FRIDAY...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT FRIDAY. 

HIGH PRESSURE ALOFT AND WEAK OFFSHORE FLOW WILL MAINTAIN HOT AND
DRY WEATHER THROUGH FRIDAY. RELATIVE HUMIDITIES ARE EXPECTED TO
FALL BELOW 10 PERCENT FOR 10 OR MORE HOURS FROM LATE MORNING
THROUGH EARLY EVENING EACH DAY. IN ADDITION...THERE WILL BE POOR
OVERNIGHT RECOVERY OF HUMIDITIES FOR INLAND AREAS. THERE WILL
ALSO CONTINUE TO BE WEAK OFFSHORE WINDS AT TIMES THROUGH FRIDAY
MORNING WITH LOCAL GUSTS TO AROUND 25 MPH IN THE WIND PRONE AREAS.
GREATEST COVERAGE FOR THESE WINDS WILL BE IN AREAS FAVORED FOR
EASTERLY OFFSHORE FLOW...THROUGH THE BANNING PASS AND IN THE SAN
DIEGO COUNTY MOUNTAINS AND INLAND VALLEYS.

A WEAK TROUGH OF LOW PRESSURE IS EXPECTED TO BRING COOLING AND
HIGHER HUMIDITIES FOR THE WEEKEND.

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

$$

SCV
000 
WWUS86 KSGX 161020
RFWSGX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
320 AM PDT THU OCT 16 2008

CAZ248-250-255>258-162130-
/O.CON.KSGX.FW.W.0025.000000T0000Z-081018T0500Z/
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY INLAND VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF
THE SAN BERNARDINO NATIONAL FOREST-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE SAN JACINTO RANGER DISTRICT OF THE SAN BERNARDINO
NATIONAL FOREST-SANTA ANA MOUNTAINS-
INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL
FOREST-SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE PALOMAR AND DESCANSO RANGER DISTRICTS OF THE
CLEVELAND NATIONAL FOREST-
320 AM PDT THU OCT 16 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT FRIDAY 
FOR 10 OR MORE HOURS EACH DAY OF RELATIVE HUMIDITIES OF 10 PERCENT 
OR LESS...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT FRIDAY. 

HIGH PRESSURE ALOFT AND WEAK OFFSHORE FLOW WILL MAINTAIN HOT AND
DRY WEATHER THROUGH FRIDAY. RELATIVE HUMIDITIES ARE EXPECTED TO
FALL BELOW 10 PERCENT FOR 10 OR MORE HOURS FROM LATE MORNING
THROUGH EARLY EVENING EACH DAY. IN ADDITION...THERE WILL BE POOR
OVERNIGHT RECOVERY OF HUMIDITIES FOR INLAND AREAS. THERE WILL
ALSO CONTINUE TO BE WEAK OFFSHORE WINDS AT TIMES THROUGH FRIDAY
MORNING WITH LOCAL GUSTS TO AROUND 25 MPH IN THE WIND PRONE
AREAS. GREATEST COVERAGE FOR THESE WINDS WILL BE IN AREAS FAVORED
FOR EASTERLY OFFSHORE FLOW...THROUGH THE BANNING PASS AND IN THE
SAN DIEGO COUNTY MOUNTAINS AND INLAND VALLEYS.

A WEAK TROUGH OF LOW PRESSURE IS EXPECTED TO BRING COOLING AND
HIGHER HUMIDITIES FOR THE WEEKEND.

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

$$

MARTIN
000 
WWUS86 KSGX 162127
RFWSGX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
227 PM PDT THU OCT 16 2008

CAZ248-250-255>258-170900-
/O.CON.KSGX.FW.W.0025.000000T0000Z-081018T0500Z/
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY INLAND VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF
THE SAN BERNARDINO NATIONAL FOREST-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE SAN JACINTO RANGER DISTRICT OF THE SAN BERNARDINO
NATIONAL FOREST-SANTA ANA MOUNTAINS-
INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL
FOREST-SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE PALOMAR AND DESCANSO RANGER DISTRICTS OF THE
CLEVELAND NATIONAL FOREST-
227 PM PDT THU OCT 16 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT FRIDAY...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT FRIDAY. 

HIGH PRESSURE ALOFT AND WEAK OFFSHORE FLOW WILL CONTINUE THE HOT AND
DRY WEATHER THROUGH FRIDAY. RELATIVE HUMIDITIES ARE EXPECTED TO
FALL TO OR BELOW 10 PERCENT FOR 10 OR MORE HOURS FROM LATE MORNING
THROUGH EARLY EVENING BOTH THURSDAY AND FRIDAY. POOR OVERNIGHT
RECOVERY OF HUMIDITIES ARE EXPECTED IN INLAND AREAS.

THERE WILL ALSO CONTINUE TO BE WEAK OFFSHORE WINDS AT TIMES
THROUGH FRIDAY MORNING WITH LOCAL GUSTS TO AROUND 25 MPH IN THE
WIND PRONE AREAS. GREATEST COVERAGE FOR THESE WINDS WILL BE IN
AREAS FAVORED FOR EASTERLY OFFSHORE FLOW...THROUGH THE BANNING
PASS AND IN THE SAN DIEGO COUNTY MOUNTAINS AND INLAND VALLEYS.

A WEAK TROUGH OF LOW PRESSURE IS EXPECTED TO BRING COOLING AND
HIGHER HUMIDITIES FOR THE WEEKEND.

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

$$

SMALL
000 
WWUS86 KSGX 171019
RFWSGX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
319 AM PDT FRI OCT 17 2008

CAZ248-250-255>258-172130-
/O.CON.KSGX.FW.W.0025.000000T0000Z-081018T0500Z/
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY INLAND VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF
THE SAN BERNARDINO NATIONAL FOREST-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE SAN JACINTO RANGER DISTRICT OF THE SAN BERNARDINO
NATIONAL FOREST-SANTA ANA MOUNTAINS-
INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL
FOREST-SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE PALOMAR AND DESCANSO RANGER DISTRICTS OF THE
CLEVELAND NATIONAL FOREST-
319 AM PDT FRI OCT 17 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING FOR 10 OR MORE HOURS OF RELATIVE HUMIDITIES LESS THAN 
10 PERCENT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING. 

HIGH PRESSURE ALOFT AND WEAK OFFSHORE FLOW WILL CONTINUE THE HOT
AND DRY WEATHER FOR INLAND AREAS TODAY. RELATIVE HUMIDITIES ARE
EXPECTED TO FALL TO OR BELOW 10 PERCENT FOR 10 OR MORE HOURS FROM
LATE MORNING THROUGH EARLY EVENING. 

THERE WILL ALSO BE WEAK OFFSHORE WINDS THROUGH EARLY AFTERNOON
WITH LOCAL GUSTS TO AROUND 25 MPH IN THE WIND PRONE AREAS.
GREATEST COVERAGE FOR THESE WINDS WILL BE IN AREAS FAVORED FOR
EASTERLY OFFSHORE FLOW...THROUGH THE BANNING PASS AND IN THE SAN
DIEGO COUNTY MOUNTAINS AND INLAND VALLEYS.

A WEAK TROUGH OF LOW PRESSURE IS EXPECTED TO BRING COOLING AND
HIGHER HUMIDITIES FOR THE WEEKEND.

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

$$

MARTIN
000 
WWUS86 KSGX 180451
RFWSGX

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
951 PM PDT FRI OCT 17 2008

...RED FLAG WARNING FOR VERY LOW HUMIDITY WILL EXPIRE AT 10 PM
THIS EVENING...

.RELATIVE HUMIDITIES HAVE INCREASED THIS EVENING AND ARE EXPECTED
TO REMAIN ABOVE 10 PERCENT. THE RED FLAG WARNING FOR VERY LOW
HUMIDITY WILL BE ALLOWED TO EXPIRE AT 10 PM.

CAZ248-250-255>258-180600-
/O.EXP.KSGX.FW.W.0025.000000T0000Z-081018T0500Z/
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY INLAND VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF
THE SAN BERNARDINO NATIONAL FOREST-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE SAN JACINTO RANGER DISTRICT OF THE SAN BERNARDINO
NATIONAL FOREST-SANTA ANA MOUNTAINS-
INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL
FOREST-SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE PALOMAR AND DESCANSO RANGER DISTRICTS OF THE
CLEVELAND NATIONAL FOREST-
951 PM PDT FRI OCT 17 2008

...RED FLAG WARNING WILL EXPIRE AT 10 PM PDT THIS EVENING...

THE RED FLAG WARNING WILL EXPIRE AT 10 PM PDT THIS EVENING. 

THE RELATIVE HUMIDITY IS EXPECTED TO REMAIN ABOVE 10 PERCENT
OVERNIGHT AND SATURDAY AS AN UPPER TROUGH MOVES ACROSS THE AREA
AND ONSHORE FLOW INCREASES. THIS WILL ALLOW THE RED FLAG WARNING
TO EXPIRE AT 10 PM THIS EVENING.

$$

SCV

What forecasters said that day

The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS San Diego, CA wrote its last area forecast discussion before this red flag warning went out at Oct 11, 9:30 PM PDT, 6 hours 15 minutes earlier.

Area forecast discussion, Oct 11, 9:30 PM PDT, 6 hours 15 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
930 PM PDT SAT OCT 11 2008

.SYNOPSIS...NORTHERLY FLOW BEHIND A LOW IN THE ROCKIES WILL BRING
RATHER LOW TEMPERATURES OVERNIGHT TONIGHT...AND THEN MAINLY
BELOW NORMAL AFTERNOON HIGH TEMPERATURES SUNDAY. SANTA ANA WINDS
WILL SLOWLY DEVELOP MIDDAY SUNDAY AND STRENGTHEN THROUGH MONDAY
MORNING. A WARMING TREND WILL START SUNDAY AND CONTINUE INTO
WEDNESDAY. MOSTLY SUNNY AND WARM WEATHER IS EXPECTED THE LATTER HALF
OF THE WEEK.

&&

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

MOSTLY CLEAR SKIES PREVAIL THIS EVENING BEHIND A MAINLY DRY COLD
FRONT THAT SWEPT THROUGH THE REGION EARLIER TODAY. THIS SHOULD BRING
A DRY...COOL NIGHT TO THE AREA. COULD EVEN SEE SOME UPPER 30S IN THE
COLDEST VALLEY AREAS SUNDAY MORNING. WINDS ARE RATHER TAME FOR THE
MOST PART THIS EVENING AS THE GRADIENTS RELAX.

A BREAK IN THE ACTION HAS OCCURRED THIS EVENING AND SHOULD LAST INTO
MIDDAY SUNDAY...THEN THE NEXT IN THE SERIES OF WEATHER EVENTS IS
EXPECTED TO BEGIN LATE SUNDAY EVENING. SOME SIGNIFICANT DIFFERENCES
BETWEEN MODELS ON THE STRENGTH...AND TO AN EXTENT...THE TIMING. THE
GENERAL CONSENSUS IS THE FLOW SHOULD BECOME NORTHEASTERLY AS A
MODERATELY STRONG SANTA ANA WIND EVENT GETS GOING. HIGH WIND
WARNINGS ARE A GOOD BET IN THE USUAL WINDY LOCATIONS...AND RED FLAG
WARNINGS LOOK LIKE A STRONG POSSIBILITY INLAND AREAS AS WELL.
WITHOUT ANY SIGNIFICANT RAINFALL IN A WHILE...THE STRONG NORTHEAST
FLOW SHOULD KICK UP SOME DUST IN THE INLAND AREAS.

THE DRY...WINDY CONDITIONS SHOULD CONTINUE INTO TUESDAY...THEN DROP
OFF TO BECOME PICTURE POSTCARD CONDITIONS TUESDAY AFTERNOON AND
WEDNESDAY. FOR THE MOST PART...CONDITIONS SHOULD REMAIN AT LEAST
WEAKLY OFFSHORE...WITH LITTLE IN THE WAY OF MARINE LAYER LOW CLOUDS
MOST OF THE SECOND HALF OF THE WEEK.

&&

.AVIATION...
110300Z...WEAK TO MODERATE OFFSHORE FLOW WILL BRING CLEAR SKIES AND
UNRESTRICTED VISIBILITIES THROUGH AT LEAST SUNDAY NIGHT...LIKELY
INTO MONDAY AS WELL.

WINDS WILL BECOME NORTHERLY AND STRENGTHEN LATE TONIGHT/EARLY SUNDAY
MORNING. GUSTY NORTH TO NORTHEAST WINDS MAY BRING MOUNTAIN
WAVES...ROTORS...AND LOW LEVEL WIND SHEAR TO AREAS SOUTH OF THE SAN
BERNARDINO AND SAN GABRIEL MOUNTAINS IN THE VICINITY OF KONT...KRAL
AND KSBD BY LATE IN THE DAY SUNDAY. BLOWING DUST IS ALSO POSSIBLE
BELOW THE CAJON PASS. THESE CONDITIONS WILL CONTINUE THROUGH MONDAY
EVENING.

&&

.FIRE WEATHER...
A FIRE WEATHER WATCH WILL REMAIN IN EFFECT FOR THE UPCOMING SANTA
ANA WIND EVENT. THE SURFACE PRESSURE GRADIENTS SHOULD BEGIN TO
TIGHTEN UP MIDDAY SUNDAY...AND PEAK ON MONDAY. RELATIVE HUMIDITIES
IN THE 30S AND 40S CURRENTLY SHOULD BE IN THE LOWER TEENS LATE
SUNDAY AFTERNOON...AND SOME SINGLE DIGITS BY MONDAY MORNING. IT
SHOULD STAY DRY THROUGH AT LEAST TUESDAY WITH RED FLAG CONDITIONS
LATE SUNDAY NIGHT INTO TUESDAY STILL LOOKING PRETTY GOOD.

CONDITIONS SHOULD IMPROVE FROM A COMBINED STRONG WIND AND LOW
HUMIDITY EVENT MONDAY THROUGH TUESDAY MORNING...TO MAINLY A LOW
HUMIDITY EVENT BY TUESDAY AFTERNOON AS THE WINDS DROP OFF BUT THE
VERY DRY CONDITIONS CONTINUE.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...

FIRE WEATHER WATCH FOR ALL MOUNTAINS...VALLEYS AND ORANGE COUNTY
LATE SUNDAY NIGHT THROUGH TUESDAY EVENING...SEE LAXRFWSGX.

&&

PUBLIC/FIRE WEATHER...SMALL
AVIATION/MARINE...SULLIVAN
Hazardous weather outlook, Oct 11, 9:30 PM PDT, 6 hours 15 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN DIEGO CA
930 PM PDT SAT OCT 11 2008

CAZ042-043-048-050-055-056-057-058-060-061-062-121200-
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-
930 PM PDT SAT OCT 11 2008

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

COOL WEATHER WITH LOCALLY BREEZY CONDITIONS ARE EXPECTED THROUGH
SUNDAY MORNING. OFFSHORE FLOW WILL DEVELOP MIDDAY SUNDAY AND
STRENGTHEN SUNDAY NIGHT AND MONDAY FOR SANTA ANA WIND CONDITIONS.
TEMPERATURES WILL RISE MONDAY AND TUESDAY. WARNINGS FOR HIGH WIND
AND THE FIRE HAZARD MAY BE ISSUED FOR ALL MOUNTAINS...VALLEYS AND
ORANGE COUNTY FOR THE PERIOD BEGINNING LATE SUNDAY NIGHT AND
CONTINUING THROUGH TUESDAY. SUNNY AND WARM WEATHER IS EXPECTED
WEDNESDAY THROUGH FRIDAY.

.DAY ONE... TODAY THROUGH TONIGHT.

* HIGH RIP CURRENT RISK FOR ALL BEACHES DUE TO WEST SWELL.

.DAYS TWO THROUGH SEVEN... SUNDAY THROUGH FRIDAY.

* A SANTA ANA WIND EVENT IS EXPECTED LATE SUNDAY NIGHT THROUGH
  TUESDAY MORNING. THE NORTHEAST WINDS WILL BRING WARM DRY
  CONDITIONS AND AN ELEVATED FIRE WEATHER THREAT. A FIRE WEATHER
  WATCH IS IN EFFECT FOR ALL MOUNTAINS...VALLEYS AND ORANGE COUNTY
  LATE SUNDAY NIGHT THROUGH TUESDAY EVENING.

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

SMALL

The office that day

Everything else NWS San Diego, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 12, 2:56 AM PDTHigh Wind WarningSGXOrange, Riverside, San Bernardino, San Diego57 hr
Oct 12, 2:56 AM PDTWind AdvisorySGXOrange, Riverside, San Bernardino, San Diego57 hr

Nearby

Red Flag Warnings in California, 2008Every red flag warning in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.