Alert archive / California / Red Flag Warnings in 2012
Red Flag Warning 4, NWS San Diego, CA
NWS San Diego, CA issued this red flag warning at Jun 18, 2012, 3:34 AM PDT for Riverside County, San Bernardino County, San Diego County, California. It took effect at Jun 18, 2012, 12:00 PM PDT. It was in force for 35 hr. 7 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 18, 2012, 3:34 AM PDT (10:34 UTC)
- In effect from
- Jun 18, 2012, 12:00 PM PDT
- Expired
- Jun 19, 2012, 11:00 PM PDT
- In force
- 35 hr
- Issued by
- NWS San Diego, CA
Counties Riverside County, CA, San Bernardino County, CA, San Diego County, CA
The radar
The Santa Ana Mts radar (KSOX), 122 km from the middle of the area, began a volume at 10:31 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 19, 5:00 AM PDT | NON-TSTM WND GST 59 | 10 N Morongo Valley, CA | WINDS GUSTED TO 59 MPH AT BURNS CANYON AT 5 AM PDT. WINDS FIRST GUSTED OVER OVER 45 MPH AT 4 PM PDT ON 6/18/12. |
| Jun 19, 5:00 AM PDT | NON-TSTM WND GST 59 | 3 Nne Cathedral City, CA | WINDS GUSTED TO 59 MPH AT EDOM HILL 5 AM PDT. WINDS FIRST GUSTED OVER 45 MPH AT 3 PM PDT ON 6/18/12. |
| Jun 19, 7:00 AM PDT | NON-TSTM WND GST 69 | 10 Nw Palm Springs, CA | WINDS GUSTED TO 69 MPH AT WHITE WATER RAWS AT 7 AM PDT. WINDS FIRST GUSTED OVER 45 MPH AT 5 PM PDT ON 6/18/12. |
| Jun 19, 7:00 AM PDT | NON-TSTM WND GST 78 | 5 Ne Thousand Palms, CA | WINDS GUSTED TO 78 MPH AT SKY VALLEY AT 7 AM PDT. WINDS FIRST GUSTED OVER 45 MPH AT 12 PM PDT ON 6/18/12. |
| Jun 19, 4:00 PM PDT | NON-TSTM WND GST 74 | 5 Ne Thousand Palms, CA | AT 4 PM PDT ON 6/19/12 WINDS WERE SUSTAINED AT 52 MPH GUSTING TO 74 MPH AT SKY VALLEY. WINDS BEGAN GUSTING OVER 45 MPH AT 12 PM PDT ON 6/18/12 AND CONTINUED THROUGH 11 PM PDT ON 6/19/12. |
| Jun 19, 6:00 PM PDT | NON-TSTM WND GST 58 | 3 Nne Cathedral City, CA | AT 6 PM PDT ON 6/19/12 WINDS WERE SUSTAINED 40 MPH GUSTING TO 58 MPH AT EDOM HILL. WINDS GUSTED OVER 45 MPH FROM 3 PM PDT ON 6/18/12 AND CONTINUED THROUGH 9 PM PDT ON 6/19/12. |
| Jun 19, 9:00 PM PDT | NON-TSTM WND GST 58 | 10 Nw Palm Springs, CA | AT 9 PM PDT ON 6/19/12 WINDS WERE SUSTAINED AT 46 MPH GUSTING TO 58 MPH AT WHITEWATER. WINDS FIRST GUSTED OVER 45 MPH AT 12 AM PDT ON 6/19/12 AND CONTINUED THROUGH 12 AM PDT ON 6/20/12. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
San Diego, CA (KNKX), launched 00:00Z, 10.6 hours before the alert went out and 145 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
- 2722 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 124 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
208 WWUS86 KSGX 181034 RFWSGX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN DIEGO CA 334 AM PDT MON JUN 18 2012 ...RED FLAG WARNING FOR THE MOUNTAINS AND DESERTS FOR THIS AFTERNOON THROUGH EARLY TUESDAY EVENING FOR STRONG GUSTY WEST WINDS AND LOW HUMIDITIES... .A LOW PRESSURE SYSTEM MOVING EASTWARD THROUGH THE GREAT BASIN WILL BRING STRONGER ONSHORE FLOW. THIS WILL BRING STRONG GUSTY WEST WINDS WITH LOW HUMIDITIES FOR THE DESERTS AND ALONG THE DESERT SLOPES OF THE MOUNTAINS. CAZ255-256-258-260>262-182100- /O.NEW.KSGX.FW.W.0004.120618T1900Z-120620T0100Z/ 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-VICTOR VALLEY-APPLE VALLEY- LUCERNE VALLEY-JOHNSON VALLEY-COACHELLA VALLEY- INCLUDING THE PALM SPRINGS SOUTH COAST DESERT DISTRICT- SAN DIEGO COUNTY DESERTS- INCLUDING THE ANZA BORREGO DESERT STATE PARK- 334 AM PDT MON JUN 18 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM PDT TUESDAY FOR STRONG GUSTY WINDS AND LOW HUMIDITIES... THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A RED FLAG WARNING FOR STRONG GUSTY WINDS AND LOW HUMIDITIES...WHICH IS IN EFFECT FROM NOON TODAY TO 6 PM PDT TUESDAY. * WINDS...WEST 15 TO 25 MPH WITH GUSTS TO 55 MPH. * RELATIVE HUMIDITY...LOWEST DAYTIME AROUND 5 PERCENT WITH POOR OVERNIGHT RECOVERY. * TIMING...STRONGEST WINDS FOR LATE THIS AFTERNOON THROUGH TONIGHT. * OUTLOOK...GUSTY WEST WINDS WITH GUSTS TO 45 MPH CONTINUING INTO TUESDAY NIGHT. 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 17
5 follow-up statements
762 WWUS86 KSGX 182009 RFWSGX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN DIEGO CA 109 PM PDT MON JUN 18 2012 ...RED FLAG WARNING FOR THE MOUNTAINS AND DESERTS THROUGH TUESDAY EVENING FOR STRONG AND GUSTY WEST WINDS AND VERY LOW HUMIDITIES... .A LOW PRESSURE SYSTEM MOVING EASTWARD THROUGH THE GREAT BASIN WILL BRING STRENGTHENING ONSHORE FLOW. THIS WILL RESULT IN STRONG AND GUSTY WEST WINDS FOR THE DESERTS AND ALONG THE DESERT SLOPES OF THE MOUNTAINS. IN ADDITION...DAY-TIME RELATIVE HUMIDITIES WILL DROP TO THE SINGLE DIGITS TODAY AND TOMORROW...WITH POOR OVERNIGHT RECOVERIES TONIGHT. THE COMBINATION OF STRONG AND GUSTY WINDS AND VERY LOW HUMIDITIES WILL RESULT IN HIGH FIRE DANGER FOR THESE AREAS. CAZ255-256-258-260>262-190500- /O.EXT.KSGX.FW.W.0004.000000T0000Z-120620T0600Z/ 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-VICTOR VALLEY-APPLE VALLEY- LUCERNE VALLEY-JOHNSON VALLEY-COACHELLA VALLEY- INCLUDING THE PALM SPRINGS SOUTH COAST DESERT DISTRICT- SAN DIEGO COUNTY DESERTS- INCLUDING THE ANZA BORREGO DESERT STATE PARK- 109 PM PDT MON JUN 18 2012 ...RED FLAG WARNING NOW IN EFFECT UNTIL 11 PM PDT TUESDAY FOR STRONG GUSTY WINDS AND LOW HUMIDITIES... THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 11 PM PDT TUESDAY. * WINDS...WEST 20 TO 30 MPH WITH GUSTS TO 50 MPH THROUGH EARLY TUESDAY MORNING...THEN WEST 15 TO 25 MPH WITH GUSTS TO 40 MPH MID-MORNING TUESDAY THROUGH TUESDAY EVENING. * RELATIVE HUMIDITY...FALLING TO 5 TO 15 PERCENT DURING THE AFTERNOONS...WITH POOR OVERNIGHT RECOVERIES. * TIMING...THROUGH TUESDAY EVENING. * OUTLOOK...WINDS DIMINISHING LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING. HOWEVER...DAY-TIME RELATIVE HUMIDITIES WILL REMAIN LOW THROUGH THE REMAINDER OF THE WEEK. 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 HARRISON
631 WWUS86 KSGX 190405 RFWSGX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN DIEGO CA 905 PM PDT MON JUN 18 2012 ...RED FLAG WARNING CONTINUES FOR THE MOUNTAINS AND DESERTS THROUGH TUESDAY EVENING FOR STRONG AND GUSTY WEST WINDS AND LOW RELATIVE HUMIDITY... .LOW PRESSURE OVER THE GREAT BASIN WILL PRODUCE STRONG AND GUSTY WESTERLY WINDS IN THE MOUNTAINS AND DESERTS. IN ADDITION...DAY- TIME RELATIVE HUMIDITY WILL DROP TO INTO THE SINGLE DIGITS AGAIN ON TUESDAY...WITH POOR OVERNIGHT RECOVERY. THE COMBINATION OF STRONG AND GUSTY WINDS...AND VERY LOW RELATIVE HUMIDITY WILL RESULT IN HIGH FIRE DANGER FOR THESE AREAS. CAZ255-256-258-260>262-191715- /O.CON.KSGX.FW.W.0004.000000T0000Z-120620T0600Z/ 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-VICTOR VALLEY-APPLE VALLEY- LUCERNE VALLEY-JOHNSON VALLEY-COACHELLA VALLEY- INCLUDING THE PALM SPRINGS SOUTH COAST DESERT DISTRICT- SAN DIEGO COUNTY DESERTS- INCLUDING THE ANZA BORREGO DESERT STATE PARK- 905 PM PDT MON JUN 18 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT TUESDAY FOR STRONG GUSTY WINDS AND LOW HUMIDITY... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT TUESDAY. * WINDS...WEST 15 TO 30 MPH WITH GUSTS TO 50 MPH. * RELATIVE HUMIDITY...LOWEST DAYTIME AROUND 5 PERCENT WITH POOR OVERNIGHT RECOVERY. * TIMING...THROUGH TUESDAY EVENING. * OUTLOOK...WINDS DIMINISHING LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING. HOWEVER...DAY-TIME RELATIVE HUMIDITY WILL REMAIN LOW THROUGH THE WEEK. 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 JAD
162 WWUS86 KSGX 191040 RFWSGX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN DIEGO CA 340 AM PDT TUE JUN 19 2012 ...RED FLAG WARNING CONTINUES FOR THE MOUNTAINS AND DESERTS THROUGH THIS EVENING FOR STRONG AND GUSTY WEST WINDS AND LOW HUMIDITIES... .LOW PRESSURE OVER THE GREAT BASIN WILL MAINTAIN STRONGER ONSHORE FLOW THROUGH THIS EVENING WITH PERIODS OF STRONG AND GUSTY WEST TO NORTHWEST WINDS. WINDS WILL BE STRONGEST EARLY THIS MORNING...AND AGAIN LATE THIS AFTERNOON THROUGH THIS EVENING. FOLLOWING POOR OVERNIGHT RECOVERY...RELATIVE HUMIDITIES WILL FALL TO 10 TO 15 PERCENT IN THE MOUNTAINS AND 5 TO 10 PERCENT IN THE DESERTS FOR THIS AFTERNOON AND EARLY EVENING. CAZ255-256-258-260>262-192100- /O.CON.KSGX.FW.W.0004.000000T0000Z-120620T0600Z/ 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-VICTOR VALLEY-APPLE VALLEY- LUCERNE VALLEY-JOHNSON VALLEY-COACHELLA VALLEY- INCLUDING THE PALM SPRINGS SOUTH COAST DESERT DISTRICT- SAN DIEGO COUNTY DESERTS- INCLUDING THE ANZA BORREGO DESERT STATE PARK- 340 AM PDT TUE JUN 19 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR STRONG GUSTY WINDS AND LOW HUMIDITIES... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. * WINDS...WEST 15 TO 25 MPH WITH GUSTS TO 50 MPH. * LOCATION...DESERT SLOPES OF THE MOUNTAINS AND ADJACENT DESERT AREAS. * RELATIVE HUMIDITY...WILL FALL TO 10 TO 15 PERCENT IN THE MOUNTAINS AND 5 TO 10 PERCENT IN THE DESERTS FOR THIS AFTERNOON AND EARLY EVENING. * TIMING...STRONGEST WINDS EARLY THIS MORNING...AND AGAIN LATE THIS AFTERNOON AND EVENING. 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 17
508 WWUS86 KSGX 192005 RFWSGX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN DIEGO CA 105 PM PDT TUE JUN 19 2012 ...RED FLAG WARNING CONTINUES FOR THE MOUNTAINS AND DESERTS THROUGH THIS EVENING FOR STRONG AND GUSTY WEST WINDS AND LOW HUMIDITIES... .LOW PRESSURE OVER THE GREAT BASIN WILL MAINTAIN STRONGER ONSHORE FLOW THROUGH THIS EVENING WITH STRONG AND GUSTY WEST TO NORTHWEST WINDS. RELATIVE HUMIDITIES OF 5 TO 15 PERCENT IN THE DESERTS AND DESERT SLOPES OF THE MOUNTAINS WILL CONTINUE THIS AFTERNOON WITH POOR RECOVERIES EXPECTED TONIGHT. HOWEVER...GUSTY WINDS WILL BECOME MAINLY LOCALIZED BY LATE TONIGHT AND DIMINISH THROUGH WEDNESDAY MORNING. CAZ255-256-258-260>262-200600- /O.CON.KSGX.FW.W.0004.000000T0000Z-120620T0600Z/ 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-VICTOR VALLEY-APPLE VALLEY- LUCERNE VALLEY-JOHNSON VALLEY-COACHELLA VALLEY- INCLUDING THE PALM SPRINGS SOUTH COAST DESERT DISTRICT- SAN DIEGO COUNTY DESERTS- INCLUDING THE ANZA BORREGO DESERT STATE PARK- 105 PM PDT TUE JUN 19 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR STRONG GUSTY WINDS AND LOW HUMIDITIES... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. * WINDS...WEST 15 TO 25 MPH WITH GUSTS TO 50 MPH. * LOCATION...DESERT SLOPES OF THE MOUNTAINS AND ADJACENT DESERT AREAS. * RELATIVE HUMIDITY...5 TO 10 PERCENT OVER THE DESERTS...AND 10 TO 15 PERCENT OVER THE DESERT SLOPES OF THE MOUNTAINS THROUGH THIS AFTERNOON. POOR RECOVERIES EXPECTED OVERNIGHT TONIGHT. * TIMING...WIDESPREAD GUSTY WINDS WILL BECOME MOSTLY LOCALIZED BY LATE TONIGHT...AND CONTINUE TO DIMINISH THROUGH WEDNESDAY 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. && $$ HTTP://WEATHER.GOV/SANDIEG0 HARRISON
416 WWUS86 KSGX 200348 RFWSGX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN DIEGO CA 848 PM PDT TUE JUN 19 2012 ...RED FLAG WARNING CANCELLED... CAZ255-256-258-260>262-200500- /O.CAN.KSGX.FW.W.0004.000000T0000Z-120620T0600Z/ SAN BERNARDINO COUNTY MOUNTAINS- INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF THE SAN BERNARDINO NATIONAL FOREST-RIVERSIDE COUNTY MOUNTAINS- INCLUDING THE SAN JACINTO RANGER DISTRICT OF THE SAN BERNARDINO NATIONAL FOREST-SAN DIEGO COUNTY MOUNTAINS- INCLUDING THE PALOMAR AND DESCANSO RANGER DISTRICTS OF THE CLEVELAND NATIONAL FOREST-VICTOR VALLEY-APPLE VALLEY- LUCERNE VALLEY-JOHNSON VALLEY-COACHELLA VALLEY- INCLUDING THE PALM SPRINGS SOUTH COAST DESERT DISTRICT- SAN DIEGO COUNTY DESERTS- INCLUDING THE ANZA BORREGO DESERT STATE PARK- 848 PM PDT TUE JUN 19 2012 ...RED FLAG WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS CANCELLED THE RED FLAG WARNING. RELATIVE HUMIDITY HAS INCREASED AND WINDS HAVE DECREASED OVER MOST OF THE AREA SO EXPLOSIVE FIRE GROWTH IS NO LONGER EXPECTED. $$ HTTP://WEATHER.GOV/SANDIEG0
Nearby
Red Flag Warnings in California, 2012Every red flag warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.