Alert archive / California / Red Flag Warnings in 2011
Red Flag Warning 2, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this red flag warning at Sep 23, 2011, 6:19 AM PDT for Monterey County, San Benito County, California. It took effect at Sep 23, 2011, 11:00 AM PDT. It was in force for 18 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
- Sep 23, 2011, 6:19 AM PDT (13:19 UTC)
- In effect from
- Sep 23, 2011, 11:00 AM PDT
- Expired
- Sep 24, 2011, 5:02 AM PDT
- In force
- 18 hr
- Issued by
- NWS San Francisco Bay Area, CA
Counties Monterey County, CA, San Benito County, CA
The nearest sounding before it
Oakland, CA (KOAK), launched 12:00Z, 1.3 hours before the alert went out and 171 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
- 2437 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
532 WWUS86 KMTR 231319 RFWMTR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 619 AM PDT FRI SEP 23 2011 CAZ517-240000- /O.UPG.KMTR.FW.A.0002.110924T0300Z-110924T1200Z/ /O.NEW.KMTR.FW.W.0002.110923T1800Z-110924T0600Z/ SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST- 619 AM PDT FRI SEP 23 2011 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT THIS EVENING FOR THUNDERSTORMS WITH THE POTENTIAL FOR DRY LIGHTNING FOR THE SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST... THE NATIONAL WEATHER SERVICE SAN FRANCISCO HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA: THE LOS PADRES FOREST LOCATED ALONG COASTAL MONTEREY COUNTY. * TIMING: FRIDAY 11 AM PDT THROUGH 11 PM PDT. * DRY LIGHTNING: INITIALLY THUNDERSTORMS COULD BE DRY HEIGHTENING THE RISK FOR LIGHTNING SPARKED WILD FIRES. * THUNDERSTORMS: GUSTY WINDS ARE EXPECTED TO ACCOMPANY THE THUNDERSTORMS WITH THE POSSIBILITY OF DRY LIGHTNING. * IMPACTS: DRY FUEL CONDITIONS COMBINED WITH LIGHTNING WILL HEIGHTEN THE RISK OF WILD FIRE IGNITION. ADDITIONALLY THE ASSOCIATED GUSTY WINDS MAY ENHANCE THE SPREAD OF ANY ON GOING OR NEWLY IGNITED FIRES. 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. && $$ CAZ518-240000- /O.NEW.KMTR.FW.W.0002.110923T1800Z-110924T0600Z/ MOUNTAINS OF SAN BENITO AND INTERIOR MONTEREY COUNTY INCLUDING PINNACLES NATIONAL MONUMENT- 619 AM PDT FRI SEP 23 2011 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT THIS EVENING FOR THUNDERSTORMS WITH THE POTENTIAL FOR DRY LIGHTNING FOR THE INTERIOR MOUNTAINS OF SAN BENITO AND MONTEREY COUNTIES INCLUDING PINNACLES NATIONAL MONUMENT... THE NATIONAL WEATHER SERVICE SAN FRANCISCO HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT THIS EVENING. * AFFECTED AREA: MOUNTAINS OF SAN BENITO AND INTERIOR MONTEREY COUNTY INCLUDING PINNACLES NATIONAL MONUMENT. * TIMING: FRIDAY 11 AM PDT THROUGH 11 PM PDT. * DRY LIGHTNING: INITIALLY THUNDERSTORMS COULD BE DRY HEIGHTENING THE RISK FOR LIGHTNING SPARKED WILD FIRES. * THUNDERSTORMS: GUSTY WINDS ARE EXPECTED TO ACCOMPANY THE THUNDERSTORMS WITH THE POSSIBILITY OF DRY LIGHTNING. * IMPACTS: DRY FUEL CONDITIONS COMBINED WITH LIGHTNING WILL HEIGHTEN THE RISK OF WILD FIRE IGNITION. ADDITIONALLY THE ASSOCIATED GUSTY WINDS MAY ENHANCE THE SPREAD OF ANY ON GOING OR NEWLY IGNITED FIRES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HTTP://WEATHER.GOV/SANFRANCISCO STROBIN
3 follow-up statements
723 WWUS86 KMTR 240301 RFWMTR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 801 PM PDT FRI SEP 23 2011 CAZ517-518-240600- /O.CON.KMTR.FW.W.0002.000000T0000Z-110924T0600Z/ SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST- MOUNTAINS OF SAN BENITO AND INTERIOR MONTEREY COUNTY INCLUDING PINNACLES NATIONAL MONUMENT- 801 PM PDT FRI SEP 23 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT FRIDAY EVENING FOR THUNDERSTORMS WITH DRY LIGHTNING FOR THE SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST AND ALSO THE MOUNTAINS OF SAN BENITO COUNTY AND INTERIOR MONTEREY COUNTY INCLUDING PINNACLES NATIONAL MONUMENT... * AFFECTED AREAS: THE LOS PADRES NATIONAL FOREST IN THE SANTA LUCIA MOUNTAIN RANGE OF WESTERN MONTEREY COUNTY. THE MOUNTAINS OF SAN BENITO COUNTY AND INTERIOR MONTEREY COUNTY INCLUDING PINNACLES NATIONAL MONUMENT. * TIMING: THROUGH 11 PM PDT FRIDAY. * DRY LIGHTNING: INITIALLY THUNDERSTORMS WILL BE DRY WHICH WILL RESULT IN HEIGHTENED RISK FOR LIGHTNING SPARKED WILD FIRES. * THUNDERSTORMS: DRY LIGHTNING IS POSSIBLE ALONG WITH LOCALLY GUSTY WINDS. * IMPACTS: DRY FUEL CONDITIONS COMBINED WITH LIGHTNING WILL HEIGHTEN THE RISK OF WILD FIRE IGNITION. ADDITIONALLY THE ASSOCIATED GUSTY WINDS MAY ENHANCE THE SPREAD OF ANY ON GOING OR NEWLY IGNITED FIRES. 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. && $$ HTTP://WEATHER.GOV/SANFRANCISCO DYKEMA
414 WWUS86 KMTR 240558 RFWMTR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1058 PM PDT FRI SEP 23 2011 CAZ517-518-241200- /O.EXT.KMTR.FW.W.0002.000000T0000Z-110924T1200Z/ SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST- MOUNTAINS OF SAN BENITO AND INTERIOR MONTEREY COUNTY INCLUDING PINNACLES NATIONAL MONUMENT- 1058 PM PDT FRI SEP 23 2011 ...RED FLAG WARNING NOW IN EFFECT UNTIL 5 AM PDT SATURDAY FOR THUNDERSTORMS WITH DRY LIGHTNING FOR THE SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST AND ALSO THE MOUNTAINS OF SAN BENITO COUNTY AND INTERIOR MONTEREY COUNTY INCLUDING PINNACLES NATIONAL MONUMENT... THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 5 AM PDT SATURDAY. * AFFECTED AREAS: THE LOS PADRES NATIONAL FOREST IN THE SANTA LUCIA MOUNTAIN RANGE OF WESTERN MONTEREY COUNTY. THE MOUNTAINS OF SAN BENITO COUNTY AND INTERIOR MONTEREY COUNTY INCLUDING PINNACLES NATIONAL MONUMENT. * TIMING: THROUGH 5 AM PDT SATURDAY. * DRY LIGHTNING: INITIALLY THUNDERSTORMS WILL BE DRY WHICH WILL RESULT IN HEIGHTENED RISK FOR LIGHTNING SPARKED WILD FIRES. * THUNDERSTORMS: DRY LIGHTNING IS POSSIBLE ALONG WITH LOCALLY GUSTY WINDS. * IMPACTS: DRY FUEL CONDITIONS COMBINED WITH LIGHTNING WILL HEIGHTEN THE RISK OF WILD FIRE IGNITION. ADDITIONALLY THE ASSOCIATED GUSTY WINDS MAY ENHANCE THE SPREAD OF ANY ON GOING OR NEWLY IGNITED FIRES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HTTP://WEATHER.GOV/SANFRANCISCO STROBIN
639 WWUS86 KMTR 241202 RFWMTR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 502 AM PDT SAT SEP 24 2011 ...RED FLAG WARNING FOR THE MOUNTAINS OF MONTEREY AND SAN BENITO COUNTIES HAS BEEN ALLOWED TO EXPIRE... .SATELLITE IMAGERY IS SHOWING THAT THUNDERSTORM ACTIVITY HAS ENDED OVER THE AREA. CAZ517-518-241315- /O.CAN.KMTR.FW.W.0002.000000T0000Z-110924T1200Z/ SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST- MOUNTAINS OF SAN BENITO AND INTERIOR MONTEREY COUNTY INCLUDING PINNACLES NATIONAL MONUMENT- 502 AM PDT SAT SEP 24 2011 ...RED FLAG WARNING HAS BEEN ALLOWED TO EXPIRE FOR THE MOUNTAINS OF MONTEREY AND SAN BENITO COUNTIES... THE NATIONAL WEATHER SERVICE SAN FRANCISCO HAS ALLOWED THE RED FLAG WARNING TO EXPIRE. SATELLITE IMAGERY IS INDICATING THAT THUNDERSTORM ACTIVITY HAS ENDED OVER THE AREA. $$ HTTP://WEATHER.GOV/SANFRANCISCO
The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 23, 2:56 AM PDT | Small Craft Advisory | MTR | 11 hr |
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.