Alert archive / California / Red Flag Warnings in 2011
Red Flag Warning 1, NWS San Diego, CA
NWS San Diego, CA issued this red flag warning at Oct 26, 2011, 2:01 AM PDT for 4 counties in California. It took effect at Oct 26, 2011, 5:00 PM PDT. It was in force for 21 hr. 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 26, 2011, 2:01 AM PDT (09:01 UTC)
- In effect from
- Oct 26, 2011, 5:00 PM PDT
- Expired
- Oct 27, 2011, 2:00 PM PDT
- In force
- 21 hr
- 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 09:01 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, 9.0 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 0 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
761 WWUS86 KSGX 260901 RFWSGX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN DIEGO CA 201 AM PDT WED OCT 26 2011 ...RED FLAG WARNING BEGINNING LATE THIS AFTERNOON AND CONTINUING THROUGH THURSDAY AFTERNOON FOR ALL MOUNTAINS..THE INLAND EMPIRE..AND THE COACHELLA VALLEY FOR COMBINATION OF GUSTY NORTHEAST WINDS AND VERY LOW RELATIVE HUMIDITY... ...RED FLAG WARNING FOR ALL OF ORANGE COUNTY AND INLAND VALLEYS OF SAN DIEGO COUNTY BEGINNING LATE THIS EVENING AND CONTINUING THROUGH THURSDAY AFTERNOON FOR COMBINATION OF GUSTY WINDS AND VERY LOW RELATIVE HUMIDITY... .FORECASTING A RAPID DROP IN RELATIVE HUMIDITY AND NORTHEAST WINDS GUSTS TO 40 MPH DURING THE AFTERNOON HOURS OVER THE MOUNTAINS AND FOOTHILLS. THESE CONDITIONS SPREADING WESTWARD TO THE COASTAL AREAS DURING THE EVENING HOURS. RELATIVE HUMIDITY TO CONTINUE TO FALL OVERNIGHT AND DROP TO THE 5 TO 10 PERCENT RANGE ALL BUT IMMEDIATE COAST. NORTHEAST WINDS SHOULD INCREASE OVERNIGHT AND PEAK THURSDAY MORNING WITH SUSTAINED 25-30 MPH GUSTS 45-55 MPH IN THE MORE WIND PRONE LOCATIONS. WINDS THEN TAPER OFF WITH GUSTS OVER 35 MPH ENDING BY THURSDAY AFTERNOON. HOWEVER VERY LOW RELATIVE HUMIDITY...LESS THAN 15 PERCENT...WITH VERY POOR OVERNIGHT RECOVERY...WILL CONTINUE INTO SATURDAY. CAZ248-255>258-261-262215- /O.NEW.KSGX.FW.W.0001.111027T0000Z-111027T2100Z/ SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE- 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-COACHELLA VALLEY- INCLUDING THE PALM SPRINGS SOUTH COAST DESERT DISTRICT- 201 AM PDT WED OCT 26 2011 ...RED FLAG WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 2 PM PDT THURSDAY FOR STRONG GUSTY WINDS AND VERY LOW HUMIDITY... THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A RED FLAG WARNING FOR STRONG GUSTY WINDS AND VERY LOW HUMIDITY...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 2 PM PDT THURSDAY. * WINDS...NORTHEAST 15 TO 30 MPH WITH GUSTS 45 TO 55 MPH. * RELATIVE HUMIDITY...FALLING BELOW 15 PERCENT THIS AFTERNOON...AND REMAINING VERY LOW OVERNIGHT THROUGH THURSDAY WITH LOWEST RELATIVE HUMIDITY AROUND 5 PERCENT. * TIMING...5 PM THIS AFTERNOON THROUGH 2 PM THURSDAY. * OUTLOOK...NORTHEAST TO EAST WINDS GUSTING TO 30 MPH AND VERY LOW RELATIVE HUMIDITY...BETWEEN 5 AND 15 PERCENT CONTINUING INTO SATURDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ CAZ242-250-262215- /O.NEW.KSGX.FW.W.0001.111027T0600Z-111027T2100Z/ ORANGE COUNTY COASTAL AREAS-SAN DIEGO COUNTY INLAND VALLEYS- 201 AM PDT WED OCT 26 2011 ...RED FLAG WARNING IN EFFECT FROM 11 PM THIS EVENING TO 2 PM PDT THURSDAY FOR STRONG GUSTY WINDS AND VERY LOW HUMIDITY... THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A RED FLAG WARNING FOR STRONG GUSTY WINDS AND VERY LOW HUMIDITY...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 2 PM PDT THURSDAY. * WINDS...NORTHEAST 15 TO 25 MPH WITH GUSTS 40 TO 50 MPH. * RELATIVE HUMIDITY...FALLING BELOW 15 PERCENT THIS EVENING AND CONTINUING VERY LOW THROUGH THURSDAY AFTERNOON WITH NO OVERNIGHT RECOVERY. * TIMING...11 PM THIS EVENING THROUGH 2 PM THURSDAY. * OUTLOOK...EAST WINDS GUSTING TO 30 MPH AND HUMIDITY BELOW 15 PERCENT CONTINUING INTO SATURDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HTTP://WEATHER.GOV/SANDIEGO BALFOUR
5 follow-up statements
325 WWUS86 KSGX 261655 RFWSGX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN DIEGO CA 955 AM PDT WED OCT 26 2011 ...RED FLAG WARNING BEGINNING THIS EVENING AND CONTINUING THROUGH THURSDAY AFTERNOON FOR THE SAN BERNARDINO COUNTY MOUNTAINS...THE INLAND EMPIRE...THE SANTA ANA MOUNTAINS...AND THE ORANGE COUNTY COASTAL AREAS... .A BRIEF INCREASE IN WINDS IS EXPECTED EARLY THIS AFTERNOON...MAINLY IN THE HIGHER ELEVATIONS OF THE SAN BERNARDINO MOUNTAINS. NORTHEAST WINDS ARE EXPECTED TO INCREASE AGAIN THIS EVENING WITH THE STRONGEST WINDS THROUGH AND BELOW THE PASSES OF THE SAN BERNARDINO AND SANTA ANA MOUNTAINS. WINDS 15-20 MPH WITH LOCAL GUSTS 35 TO 40 ARE EXPECTED OVERNIGHT. LOCAL GUSTS TO 45 MPH ARE POSSIBLE IN THE WINDIEST SPOTS...MAINLY BELOW THE CAJON PASS AND NORTHERN PORTIONS OF THE SANTA ANA MOUNTAINS. WIND PRONE AREAS WILL BEGIN TO DRY OUT THIS EVENING WITH DRYING SPREADING TO THE VALLEYS AND COASTAL AREAS OVERNIGHT. HUMIDITY WILL MOSTLY BE IN THE 10-15 PERCENT RANGE BY EARLY THURSDAY MORNING...EXCEPT NEAR THE IMMEDIATE COAST. WINDS WILL RAPIDLY DECREASE BY THURSDAY AFTERNOON...THOUGH WEAK OFFSHORE WINDS AND DRY CONDITIONS WILL PERSIST THROUGH THE WEEKEND. CAZ256-258-261-261800- /O.CAN.KSGX.FW.W.0001.111027T0000Z-111027T2100Z/ 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-COACHELLA VALLEY- INCLUDING THE PALM SPRINGS SOUTH COAST DESERT DISTRICT- 955 AM PDT WED OCT 26 2011 ...RED FLAG WARNING IS CANCELLED FOR STRONG GUSTY WINDS AND VERY LOW HUMIDITY... THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS CANCELLED THE RED FLAG WARNING. WINDS ARE NOT EXPECTED TO MEET RED FLAG CRITERIA. ISOLATED GUSTS 25 TO 35 MPH WILL BE POSSIBLE IN THE MOUNTAINS AND FOOTHILLS OF THE RIVERSIDE AND SAN DIEGO MOUNTAINS AS WELL AS FAR NORTHERN PORTIONS OF THE COACHELLA VALLEY. VERY DRY CONDITIONS WILL STILL EXIST BEGINNING THIS EVENING. $$ CAZ250-261800- /O.CAN.KSGX.FW.W.0001.111027T0600Z-111027T2100Z/ SAN DIEGO COUNTY INLAND VALLEYS- 955 AM PDT WED OCT 26 2011 ...RED FLAG WARNING IS CANCELLED FOR STRONG GUSTY WINDS AND VERY LOW HUMIDITY... THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS CANCELLED THE RED FLAG WARNING. WINDS ARE NOT EXPECTED TO MEET RED FLAG CRITERIA. ISOLATED GUSTS 20 TO 30 MPH POSSIBLE NEAR THE FOOTHILLS OVERNIGHT. VERY DRY CONDITIONS WILL STILL EXIST BEGINNING TONIGHT. $$ CAZ248-255-257-270100- /O.EXT.KSGX.FW.W.0001.111027T0600Z-111027T2100Z/ SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE- SAN BERNARDINO COUNTY MOUNTAINS- INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF THE SAN BERNARDINO NATIONAL FOREST-SANTA ANA MOUNTAINS- INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL FOREST- 955 AM PDT WED OCT 26 2011 ...RED FLAG WARNING NOW IN EFFECT FROM 11 PM THIS EVENING TO 2 PM PDT THURSDAY FOR STRONG GUSTY WINDS AND VERY LOW HUMIDITY... THE RED FLAG WARNING IS NOW IN EFFECT FROM 11 PM THIS EVENING TO 2 PM PDT THURSDAY. * WINDS...NORTHEAST 15 TO 20 MPH WITH GUSTS 35 TO 45 MPH. * RELATIVE HUMIDITY...LOWERING TO 10 TO 15 PERCENT THIS EVENING. HUMIDITY WILL LOCALLY DROP TO THE SINGLE DIGITS THURSDAY AFTERNOON WITH POOR OVERNIGHT RECOVERY. * TIMING...11 PM THIS EVENING THROUGH 2 PM THURSDAY. * OUTLOOK...NORTHEAST TO EAST WINDS GUSTING TO 20 MPH AND VERY LOW RELATIVE HUMIDITY...BETWEEN 8 AND 15 PERCENT CONTINUING INTO SATURDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ CAZ242-270100- /O.CON.KSGX.FW.W.0001.111027T0600Z-111027T2100Z/ ORANGE COUNTY COASTAL AREAS- 955 AM PDT WED OCT 26 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 2 PM PDT THURSDAY FOR STRONG GUSTY WINDS AND VERY LOW HUMIDITY... A RED FLAG WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 2 PM PDT THURSDAY. * WINDS...NORTHEAST 10 TO 15 MPH WITH GUSTS TO 40 MPH NEAR THE FOOTHILLS OF THE SANTA ANA MOUNTAINS. * RELATIVE HUMIDITY...LOWERING TO 10 PERCENT TONIGHT AND CONTINUING THROUGH THURSDAY WITH POOR OVERNIGHT RECOVERY IN THE WIND PRONE AREAS. HUMIDITY WILL REMAIN AT 30 PERCENT OR HIGHER AT MOST COASTAL LOCATIONS. * TIMING...11 PM THIS EVENING THROUGH 2 PM THURSDAY. * OUTLOOK...NORTHEAST WINDS GUSTING TO 15 MPH AND HUMIDITY BELOW 15 PERCENT CONTINUING INTO SATURDAY MORNING NEAR THE FOOTHILLS. ELSEWHERE WINDS WILL BE 5 TO 10 MPH WITH HUMIDITY 25 PERCENT OR HIGHER. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HTTP://WEATHER.GOV/SANDIEG0
184 WWUS86 KSGX 262157 RFWSGX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN DIEGO CA 257 PM PDT WED OCT 26 2011 ...RED FLAG WARNING BEGINNING THIS EVENING AND CONTINUING THROUGH THURSDAY AFTERNOON FOR THE SAN BERNARDINO COUNTY MOUNTAINS...THE RIVERSIDE AND SAN BERNARDINO VALLEYS...THE SANTA ANA MOUNTAINS...AND THE ORANGE COUNTY COASTAL AREAS... .GUSTY NORTH WINDS AND GRADUALLY DRYING WILL CONTINUE IN THE SAN BERNARDINO MOUNTAINS THIS AFTERNOON. NORTHEAST WINDS ARE EXPECTED TO INCREASE THIS EVENING WITH THE STRONGEST WINDS THROUGH AND BELOW THE PASSES OF THE SAN BERNARDINO AND SANTA ANA MOUNTAINS. WINDS 15-20 MPH WITH LOCAL GUSTS 35 TO 40 ARE EXPECTED OVERNIGHT. LOCAL GUSTS TO 45 MPH ARE POSSIBLE IN THE WINDIEST SPOTS...MAINLY BELOW THE CAJON PASS AND NORTHERN PORTIONS OF THE SANTA ANA MOUNTAINS. WIND PRONE AREAS WILL BEGIN TO DRY OUT THIS EVENING WITH DRYING SPREADING TO THE VALLEYS AND COASTAL AREAS OVERNIGHT. HUMIDITY WILL MOSTLY BE IN THE 10-15 PERCENT RANGE BY EARLY THURSDAY MORNING...EXCEPT NEAR THE IMMEDIATE COAST. WINDS WILL RAPIDLY DECREASE BY THURSDAY AFTERNOON...THOUGH WEAK OFFSHORE WINDS AND DRY CONDITIONS WILL PERSIST THROUGH THE WEEKEND. CAZ242-248-255-257-270700- /O.CON.KSGX.FW.W.0001.111027T0600Z-111027T2100Z/ ORANGE COUNTY COASTAL AREAS- SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE- SAN BERNARDINO COUNTY MOUNTAINS- INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF THE SAN BERNARDINO NATIONAL FOREST-SANTA ANA MOUNTAINS- INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL FOREST- 257 PM PDT WED OCT 26 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 2 PM PDT THURSDAY FOR STRONG GUSTY WINDS AND VERY LOW HUMIDITY... A RED FLAG WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 2 PM PDT THURSDAY. * WINDS...NORTHEAST 15 TO 20 MPH WITH GUSTS 35 TO 45 MPH. * RELATIVE HUMIDITY...LOWERING TO 10 TO 15 PERCENT THIS EVENING. HUMIDITY WILL LOCALLY DROP TO THE SINGLE DIGITS THURSDAY AFTERNOON WITH POOR OVERNIGHT RECOVERY. * TIMING...11 PM THIS EVENING THROUGH 2 PM THURSDAY. * OUTLOOK...NORTHEAST TO EAST WINDS GUSTING TO 20 MPH AND VERY LOW RELATIVE HUMIDITY...BETWEEN 8 AND 15 PERCENT CONTINUING INTO SATURDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ SS HTTP://WEATHER.GOV/SANDIEG0
345 WWUS86 KSGX 262202 CCA RFWSGX URGENT - FIRE WEATHER MESSAGE...CORRECTED NATIONAL WEATHER SERVICE SAN DIEGO CA 302 PM PDT WED OCT 26 2011 ...RED FLAG WARNING BEGINNING THIS EVENING AND CONTINUING THROUGH THURSDAY AFTERNOON FOR THE SAN BERNARDINO COUNTY MOUNTAINS...THE RIVERSIDE AND SAN BERNARDINO VALLEYS...THE SANTA ANA MOUNTAINS...AND THE ORANGE COUNTY COASTAL AREAS... .GUSTY NORTH WINDS AND GRADUAL DRYING WILL CONTINUE IN THE SAN BERNARDINO MOUNTAINS THIS AFTERNOON. NORTHEAST WINDS ARE EXPECTED TO INCREASE THIS EVENING WITH THE STRONGEST WINDS THROUGH AND BELOW THE PASSES OF THE SAN BERNARDINO AND SANTA ANA MOUNTAINS. WINDS 15-20 MPH WITH LOCAL GUSTS 35 TO 40 ARE EXPECTED OVERNIGHT. LOCAL GUSTS TO 45 MPH ARE POSSIBLE IN THE WINDIEST SPOTS...MAINLY BELOW THE CAJON PASS AND NORTHERN PORTIONS OF THE SANTA ANA MOUNTAINS. WIND PRONE AREAS WILL BEGIN TO DRY OUT THIS EVENING WITH DRYING SPREADING TO THE VALLEYS AND COASTAL AREAS OVERNIGHT. HUMIDITY WILL MOSTLY BE IN THE 10-15 PERCENT RANGE BY EARLY THURSDAY MORNING...EXCEPT NEAR THE IMMEDIATE COAST. WINDS WILL RAPIDLY DECREASE BY THURSDAY AFTERNOON...THOUGH WEAK OFFSHORE WINDS AND DRY CONDITIONS WILL PERSIST THROUGH THE WEEKEND. CAZ242-248-255-257-270730- /O.CON.KSGX.FW.W.0001.111027T0600Z-111027T2100Z/ ORANGE COUNTY COASTAL AREAS- SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE- SAN BERNARDINO COUNTY MOUNTAINS- INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF THE SAN BERNARDINO NATIONAL FOREST-SANTA ANA MOUNTAINS- INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL FOREST- 302 PM PDT WED OCT 26 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 2 PM PDT THURSDAY FOR STRONG GUSTY WINDS AND VERY LOW HUMIDITY... A RED FLAG WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 2 PM PDT THURSDAY. * WINDS...NORTHEAST 15 TO 20 MPH WITH GUSTS 35 TO 45 MPH. * RELATIVE HUMIDITY...LOWERING TO 10 TO 15 PERCENT THIS EVENING. HUMIDITY WILL LOCALLY DROP TO THE SINGLE DIGITS THURSDAY AFTERNOON WITH POOR OVERNIGHT RECOVERY. * TIMING...11 PM THIS EVENING THROUGH 2 PM THURSDAY. * OUTLOOK...NORTHEAST TO EAST WINDS GUSTING TO 20 MPH AND VERY LOW RELATIVE HUMIDITY...BETWEEN 8 AND 15 PERCENT CONTINUING INTO SATURDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ SS HTTP://WEATHER.GOV/SANDIEG0
452 WWUS86 KSGX 270724 RFWSGX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN DIEGO CA 1224 AM PDT THU OCT 27 2011 ...RED FLAG WARNING THROUGH 2 PM THIS AFTERNOON FOR THE SAN BERNARDINO COUNTY MOUNTAINS...THE RIVERSIDE AND SAN BERNARDINO VALLEYS...THE SANTA ANA MOUNTAINS...AND THE ORANGE COUNTY COASTAL AREAS... .DRY AIR AND NORTHEAST WINDS WILL PRODUCE CRITICAL FIRE WEATHER CONDITIONS THIS MORNING. THE STRONGEST WINDS WILL OCCUR THROUGH AND BELOW THE PASSES OF THE SAN BERNARDINO AND SANTA ANA MOUNTAINS WHERE LOCAL WINDS OF 20 TO 30 MPH WITH LOCAL GUSTS 45 MPH ARE EXPECTED THIS MORNING. THE DRY AIR WILL SPREAD TOWARD THE COAST THIS MORNING...BUT THEN RECOVER NEAR THE COAST WITH AN AFTERNOON SEA BREEZE. HUMIDITY WILL MOSTLY BE IN THE 10-15 PERCENT RANGE THIS MORNING...EXCEPT NEAR THE IMMEDIATE COAST. WINDS WILL DECREASE BY MIDDAY...ALTHOUGH WEAK OFFSHORE WINDS AND DRY CONDITIONS WILL PERSIST THROUGH THE WEEKEND. CAZ242-248-255-257-272100- /O.CON.KSGX.FW.W.0001.000000T0000Z-111027T2100Z/ ORANGE COUNTY COASTAL AREAS- SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE- SAN BERNARDINO COUNTY MOUNTAINS- INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF THE SAN BERNARDINO NATIONAL FOREST-SANTA ANA MOUNTAINS- INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL FOREST- 1224 AM PDT THU OCT 27 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 2 PM PDT THIS AFTERNOON FOR STRONG WINDS AND VERY LOW RELATIVE HUMIDITY... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 2 PM PDT THIS AFTERNOON. * WINDS...LOCALLY NORTHEAST 20 TO 30 MPH WITH GUSTS TO 45 MPH. * RELATIVE HUMIDITY...LOWEST DAYTIME AROUND 10 PERCENT. * TIMING...THROUGH 2 PM TODAY. * OUTLOOK...NORTHEAST TO EAST WINDS GUSTING TO 20 MPH AND VERY LOW RELATIVE HUMIDITY...BETWEEN 8 AND 15 PERCENT CONTINUING INTO SUNDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS AND LOW RELATIVE HUMIDITY WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HTTP://WEATHER.GOV/SANDIEG0
650 WWUS86 KSGX 272056 RFWSGX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN DIEGO CA 156 PM PDT THU OCT 27 2011 ...THE RED FLAG WARNING FOR THE SAN BERNARDINO COUNTY MOUNTAINS... THE RIVERSIDE AND SAN BERNARDINO COUNTY VALLEYS ...THE SANTA ANA MOUNTAINS...AND THE ORANGE COUNTY COASTAL AREAS WILL BE ALLOWED TO EXPIRE AT 2 PM... .WEAKENING HIGH PRESSURE OVER THE PLATEAU WILL CONTINUE TO RESULT IN VERY LOW RELATIVE HUMIDITIES IN THE INLAND AREAS INTO THE WEEKEND ...BUT ONLY WEAK OFFSHORE FLOW IS EXPECTED. CAZ242-248-255-257-272200- /O.EXP.KSGX.FW.W.0001.000000T0000Z-111027T2100Z/ ORANGE COUNTY COASTAL AREAS- SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE- SAN BERNARDINO COUNTY MOUNTAINS- INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF THE SAN BERNARDINO NATIONAL FOREST-SANTA ANA MOUNTAINS- INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL FOREST- 156 PM PDT THU OCT 27 2011 ...THE RED FLAG WARNING FOR THE SAN BERNARDINO COUNTY MOUNTAINS... THE RIVERSIDE AND SAN BERNARDINO COUNTY VALLEYS...THE SANTA ANA MOUNTAINS... AND THE ORANGE COUNTY COASTAL AREAS WILL BE ALLOWED TO EXPIRE AT 2 PM THIS AFTERNOON. RELATIVE HUMIDITIES ARE EXPECTED TO CONTINUE TO BE VERY LOW...BUT WIND SPEEDS WILL CONTINUE TO DROP OFF...SO THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE AT 2 PM. $$ HTTP://WEATHER.GOV/SANDIEG0 SMALL
Nearby
Red Flag Warnings in California, 2011Every red flag warning in 2011
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.