Alert archive / Texas / Red Flag Warnings in 2011
Red Flag Warning 25, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this red flag warning at Sep 29, 2011, 12:23 PM CDT for 25 counties in Texas. It took effect at Sep 30, 2011, 7:00 AM CDT. It was in force for 13 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 29, 2011, 12:23 PM CDT (17:23 UTC)
- In effect from
- Sep 30, 2011, 7:00 AM CDT
- Expired
- Sep 30, 2011, 8:00 PM CDT
- In force
- 13 hr
- Issued by
- NWS Austin/San Antonio, TX
All 25 counties
Atascosa County, TX, Bandera County, TX, Bastrop County, TX, Bexar County, TX, Blanco County, TX, Burnet County, TX, Caldwell County, TX, Comal County, TX, DeWitt County, TX, Fayette County, TX, Frio County, TX, Gillespie County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Karnes County, TX, Kendall County, TX, Kerr County, TX, Lavaca County, TX, Lee County, TX, Llano County, TX, Medina County, TX, Travis County, TX, Williamson County, TX, Wilson County, TX
The radar
The Austin/San Antonio radar (KEWX), 14 km from the middle of the area, began a volume at 17:23 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
Corpus Christi, TX (KCRP), launched 12:00Z, 5.4 hours before the alert went out and 242 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
- 3536 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 602 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -50 m²/s²
- 0-3 km storm-relative helicity
- -44 m²/s²
- Significant tornado parameter
- -0.5
- Supercell composite
- -3.2
The text
As transmitted, in the capitals the NWS used until 2016.
259 WWUS84 KEWX 291723 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1223 PM CDT THU SEP 29 2011 ...RED FLAG WARNING IN EFFECT FOR THE EASTERN PORTIONS OF SOUTH CENTRAL TEXAS FROM 7AM TO 8PM CDT FRIDAY FOR A DRY FRONT WHICH WILL MOVE THE AREA EARLY FRIDAY MORNING... .A DRY FRONT WILL MOVE THROUGH SOUTH CENTRAL TEXAS EARLY FRIDAY MORNING. BEHIND THE FRONT STRONG NORTH-NORTHEASTERLY 20-FT WINDS WILL INCREASE TO 15 TO 20 MPH WITH HIGHER GUSTS TO AROUND 30 MPH AS EARLY AS 7AM. MEANWHILE RELATIVE HUMIDITIES WILL INITIALLY BE IN THE 30-40 PERCENT RANGE...BUT WILL CONTINUE TO FALL INTO THE 15-25 PERCENT RANGE. THESE CRITICAL FIRE WEATHER CONDITIONS WILL COMBINE WITH EXTREMELY DRY FUELS TO PROMOTE EXTREME WILD FIRE BEHAVIOR. TXZ171>173-187>194-204>209-219>225-300730- /O.NEW.KEWX.FW.W.0025.110930T1200Z-111001T0100Z/ LLANO-BURNET-WILLIAMSON-BANDERA-GILLESPIE-KENDALL-BLANCO-HAYS- TRAVIS-BASTROP-LEE-MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-FAYETTE- FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA- 1223 PM CDT THU SEP 29 2011 ...RED FLAG WARNING IN EFFECT FROM 7 AM TO 8 PM CDT FRIDAY FOR A DRY FRONT ACROSS THE EASTERN HALF OF SOUTH CENTRAL TEXAS... THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 7 AM TO 8 PM CDT FRIDAY. * AFFECTED AREA...THE FOLLOWING SOUTH CENTRAL TEXAS COUNTIES... LLANO...BURNET...WILLIAMSON...BANDERA...GILLESPIE...KENDALL... BLANCO...HAYS...TRAVIS...BASTROP...LEE...MEDINA...BEXAR... COMAL...GUADALUPE...CALDWELL...FAYETTE...FRIO...ATASCOSA... WILSON...KARNES...GONZALES...DE WITT...LAVACA. * 20-FOOT WIND...15 TO 20 MPH WITH GUSTS OF 30 MPH. * HUMIDITY...15 TO 25 PERCENT. * THUNDERSTORMS...ISOLATED PRIOR TO FRONT. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. AVOID THE USE OF OPEN FLAMES OR ANY ACTIVITIES THAN MAY GENERATE SPARKS. ACCIDENTAL IGNITIONS WILL HAVE THE POTENTIAL TO GROW QUICKLY INTO DANGEROUS WIND DRIVEN WILDFIRES. && $$ FOR INFORMATION ON BURN BANS PLEASE VISIT THE TEXAS INTERAGENCY COORDINATION CENTER WEBSITE AT: TICC.TAMU.EDU
4 follow-up statements
994 WWUS84 KEWX 292021 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 321 PM CDT THU SEP 29 2011 ...RED FLAG WARNING IN EFFECT FOR THE EASTERN PORTIONS OF SOUTH CENTRAL TEXAS FROM 7AM TO 8PM CDT FRIDAY FOR A DRY FRONT WHICH WILL MOVE THE AREA EARLY FRIDAY MORNING... .A DRY FRONT WILL MOVE THROUGH SOUTH CENTRAL TEXAS EARLY FRIDAY MORNING. BEHIND THE FRONT STRONG NORTH-NORTHEASTERLY 20-FT WINDS WILL INCREASE TO 15 TO 20 MPH WITH HIGHER GUSTS TO AROUND 30 MPH AS EARLY AS 7AM. MEANWHILE RELATIVE HUMIDITIES WILL INITIALLY BE IN THE 30-40 PERCENT RANGE...BUT WILL CONTINUE TO FALL INTO THE 15-25 PERCENT RANGE. THESE CRITICAL FIRE WEATHER CONDITIONS WILL COMBINE WITH EXTREMELY DRY FUELS TO PROMOTE EXTREME WILD FIRE BEHAVIOR. TXZ186-300830- /O.EXA.KEWX.FW.W.0025.110930T1200Z-111001T0100Z/ KERR- 321 PM CDT THU SEP 29 2011 ...RED FLAG WARNING IN EFFECT FROM 7 AM TO 8 PM CDT FRIDAY FOR A DRY FRONT ACROSS THE EASTERN HALF OF SOUTH CENTRAL TEXAS... THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 7 AM TO 8 PM CDT FRIDAY. * AFFECTED AREA...THE FOLLOWING SOUTH CENTRAL TEXAS COUNTIES... KERR. * 20-FOOT WIND...15 TO 20 MPH WITH GUSTS OF 30 MPH. * HUMIDITY...15 TO 25 PERCENT. * THUNDERSTORMS...ISOLATED PRIOR TO FRONT. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. AVOID THE USE OF OPEN FLAMES OR ANY ACTIVITIES THAN MAY GENERATE SPARKS. ACCIDENTAL IGNITIONS WILL HAVE THE POTENTIAL TO GROW QUICKLY INTO DANGEROUS WIND DRIVEN WILDFIRES. && $$ TXZ171>173-187>194-204>209-219>225-300830- /O.CON.KEWX.FW.W.0025.110930T1200Z-111001T0100Z/ LLANO-BURNET-WILLIAMSON-BANDERA-GILLESPIE-KENDALL-BLANCO-HAYS- TRAVIS-BASTROP-LEE-MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-FAYETTE- FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA- 321 PM CDT THU SEP 29 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM 7 AM TO 8 PM CDT FRIDAY FOR A DRY FRONT ACROSS THE EASTERN PORTIONS OF SOUTH CENTRAL TEXAS... * AFFECTED AREA...THE FOLLOWING SOUTH CENTRAL TEXAS COUNTIES... LLANO...BURNET...WILLIAMSON...BANDERA...GILLESPIE...KENDALL... BLANCO...HAYS...TRAVIS...BASTROP...LEE...MEDINA...BEXAR... COMAL...GUADALUPE...CALDWELL...FAYETTE...FRIO...ATASCOSA... WILSON...KARNES...GONZALES...DE WITT...LAVACA. * 20-FOOT WIND...15 TO 20 MPH WITH GUSTS OF 30 MPH. * HUMIDITY...15 TO 25 PERCENT. * THUNDERSTORMS...ISOLATED PRIOR TO FRONT. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. AVOID THE USE OF OPEN FLAMES OR ANY ACTIVITIES THAN MAY GENERATE SPARKS. ACCIDENTAL IGNITIONS WILL HAVE THE POTENTIAL TO GROW QUICKLY INTO DANGEROUS WIND DRIVEN WILDFIRES. && $$ FOR INFORMATION ON BURN BANS PLEASE VISIT THE TEXAS INTERAGENCY COORDINATION CENTER WEBSITE AT: TICC.TAMU.EDU
482 WWUS84 KEWX 300231 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 931 PM CDT THU SEP 29 2011 ...RED FLAG WARNING IN EFFECT FOR THE EASTERN PORTIONS OF SOUTH CENTRAL TEXAS FROM 7 AM TO 8 PM CDT FRIDAY FOR A DRY FRONT WHICH WILL MOVE THE AREA EARLY FRIDAY MORNING... .A DRY FRONT WILL MOVE THROUGH SOUTH CENTRAL TEXAS EARLY FRIDAY MORNING. BEHIND THE FRONT STRONG NORTH-NORTHEASTERLY 20-FT WINDS WILL INCREASE TO 15 TO 20 MPH WITH HIGHER GUSTS TO AROUND 30 MPH AS EARLY AS 7AM. MEANWHILE RELATIVE HUMIDITIES WILL INITIALLY BE IN THE 30-40 PERCENT RANGE...AND THEN WILL FALL TO THE 15 TO 25 PERCENT RANGE. THESE CRITICAL FIRE WEATHER CONDITIONS WILL COMBINE WITH EXTREMELY DRY FUELS TO PROMOTE EXTREME WILD FIRE BEHAVIOR. TXZ171>173-186>194-204>209-219>225-301130- /O.CON.KEWX.FW.W.0025.110930T1200Z-111001T0100Z/ LLANO-BURNET-WILLIAMSON-KERR-BANDERA-GILLESPIE-KENDALL-BLANCO- HAYS-TRAVIS-BASTROP-LEE-MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL- FAYETTE-FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA- 931 PM CDT THU SEP 29 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM 7 AM TO 8 PM CDT FRIDAY FOR A DRY FRONT ACROSS THE EASTERN HALF OF SOUTH CENTRAL TEXAS... * AFFECTED AREA...THE FOLLOWING SOUTH CENTRAL TEXAS COUNTIES... LLANO...BURNET...WILLIAMSON...KERR...BANDERA...GILLESPIE... KENDALL...BLANCO...HAYS...TRAVIS...BASTROP...LEE...MEDINA... BEXAR...COMAL...GUADALUPE...CALDWELL...FAYETTE...FRIO... ATASCOSA...WILSON...KARNES...GONZALES...DE WITT...LAVACA. * 20-FOOT WIND...15 TO 20 MPH WITH GUSTS OF 30 MPH. * HUMIDITY...15 TO 25 PERCENT. * THUNDERSTORMS...ISOLATED PRIOR TO FRONT. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. AVOID THE USE OF OPEN FLAMES OR ANY ACTIVITIES THAN MAY GENERATE SPARKS. ACCIDENTAL IGNITIONS WILL HAVE THE POTENTIAL TO GROW QUICKLY INTO DANGEROUS WIND DRIVEN WILDFIRES. && $$ FOR INFORMATION ON BURN BANS PLEASE VISIT THE TEXAS INTERAGENCY COORDINATION CENTER WEBSITE AT: TICC.TAMU.EDU
282 WWUS84 KEWX 301201 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 701 AM CDT FRI SEP 30 2011 ...RED FLAG WARNING REMAINS IN EFFECT FOR THE EASTERN PORTIONS OF SOUTH CENTRAL TEXAS UNTIL 8 PM CDT THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITIES BEHIND A COLD FRONT THAT WILL MOVE ACROSS THE AREA THIS MORNING... .A COLD FRONT WILL MOVE ACROSS SOUTH CENTRAL TEXAS THIS MORNING. IN THE WAKE OF THE FRONTAL PASSAGE...STRONG NORTH TO NORTHEAST 20-FT WINDS WILL INCREASE TO 15 TO 20 MPH WITH HIGHER GUSTS TO AROUND 30 MPH BY NOON. RELATIVE HUMIDITIES WILL FALL INTO THE 15 TO 25 PERCENT RANGE. THESE CRITICAL FIRE WEATHER CONDITIONS WILL COMBINE WITH EXTREMELY DRY FUELS TO PROMOTE EXTREME WILD FIRE BEHAVIOR. TXZ171>173-186>194-204>209-219>225-010015- /O.CON.KEWX.FW.W.0025.000000T0000Z-111001T0100Z/ LLANO-BURNET-WILLIAMSON-KERR-BANDERA-GILLESPIE-KENDALL-BLANCO- HAYS-TRAVIS-BASTROP-LEE-MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL- FAYETTE-FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA- 701 AM CDT FRI SEP 30 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITIES ACROSS AREAS ALONG AND EAST OF A MOUNTAIN HOME TO DILLEY LINE... * AFFECTED AREA...THE FOLLOWING SOUTH CENTRAL TEXAS COUNTIES... LLANO...BURNET...WILLIAMSON...KERR...BANDERA...GILLESPIE... KENDALL...BLANCO...HAYS...TRAVIS...BASTROP...LEE...MEDINA... BEXAR...COMAL...GUADALUPE...CALDWELL...FAYETTE...FRIO... ATASCOSA...WILSON...KARNES...GONZALES...DE WITT...LAVACA. * 20-FOOT WIND...15 TO 20 MPH WITH GUSTS UP TO 30 MPH. * HUMIDITY...15 TO 25 PERCENT. * THUNDERSTORMS...NONE. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. AVOID THE USE OF OPEN FLAMES OR ANY ACTIVITIES THAN MAY GENERATE SPARKS. ACCIDENTAL IGNITIONS WILL HAVE THE POTENTIAL TO GROW QUICKLY INTO DANGEROUS WIND DRIVEN WILDFIRES. && $$ FOR INFORMATION ON BURN BANS PLEASE VISIT THE TEXAS INTERAGENCY COORDINATION CENTER WEBSITE AT: TICC.TAMU.EDU
212 WWUS84 KEWX 302017 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 317 PM CDT FRI SEP 30 2011 ...RED FLAG WARNING REMAINS IN EFFECT FOR THE EASTERN PORTIONS OF SOUTH CENTRAL TEXAS UNTIL 8 PM CDT THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITIES BEHIND A COLD FRONT THAT WILL MOVE ACROSS THE AREA THIS MORNING... .A COLD FRONT WILL MOVE ACROSS SOUTH CENTRAL TEXAS THIS MORNING. IN THE WAKE OF THE FRONTAL PASSAGE...STRONG NORTH TO NORTHEAST 20- FT WINDS WILL INCREASE TO 15 TO 20 MPH WITH HIGHER GUSTS TO AROUND 30 MPH BY NOON. RELATIVE HUMIDITIES WILL FALL INTO THE 15 TO 25 PERCENT RANGE. THESE CRITICAL FIRE WEATHER CONDITIONS WILL COMBINE WITH EXTREMELY DRY FUELS TO PROMOTE EXTREME WILD FIRE BEHAVIOR. TXZ171>173-186>194-204>209-219>225-010100- /O.CON.KEWX.FW.W.0025.000000T0000Z-111001T0100Z/ LLANO-BURNET-WILLIAMSON-KERR-BANDERA-GILLESPIE-KENDALL-BLANCO- HAYS-TRAVIS-BASTROP-LEE-MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL- FAYETTE-FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA- 317 PM CDT FRI SEP 30 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITIES ACROSS AREAS ALONG AND EAST OF A MOUNTAIN LINE HOME TO DILLEY LINE... * AFFECTED AREA...THE FOLLOWING SOUTH CENTRAL TEXAS COUNTIES... LLANO...BURNET...WILLIAMSON...KERR...BANDERA...GILLESPIE... KENDALL...BLANCO...HAYS...TRAVIS...BASTROP...LEE...MEDINA... BEXAR...COMAL...GUADALUPE...CALDWELL...FAYETTE...FRIO... ATASCOSA...WILSON...KARNES...GONZALES...DE WITT...LAVACA. * 20-FOOT WIND...15 TO 20 MPH WITH GUSTS UP TO 30 MPH. * HUMIDITY...15 TO 25 PERCENT. * THUNDERSTORMS...NONE. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. AVOID THE USE OF OPEN FLAMES OR ANY ACTIVITIES THAN MAY GENERATE SPARKS. ACCIDENTAL IGNITIONS WILL HAVE THE POTENTIAL TO GROW QUICKLY INTO DANGEROUS WIND DRIVEN WILDFIRES. && $$ FOR INFORMATION ON BURN BANS PLEASE VISIT THE TEXAS INTERAGENCY COORDINATION CENTER WEBSITE AT: TICC.TAMU.EDU
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 29, 2:36 PM CDT | Severe Thunderstorm Warning | EWX | Comal, Hays | 39 min |
| Sep 29, 3:14 PM CDT | Severe Thunderstorm Warning | EWX | Caldwell, Comal, Guadalupe, Hays | 37 min |
| Sep 29, 4:14 PM CDT | Severe Thunderstorm Warning | EWX | Caldwell, Gonzales, Guadalupe | 46 min |
| Sep 29, 4:15 PM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Fayette, Lee | 60 min |
| Sep 29, 4:17 PM CDT | Severe Thunderstorm Warning | EWX | Lavaca | 58 min |
| Sep 29, 4:23 PM CDT | Severe Thunderstorm Warning | EWX | Bexar, Comal, Kendall | 52 min |
| Sep 29, 4:27 PM CDT | Areal Flood Advisory | EWX | Bexar, Comal, Gonzales, Guadalupe, Kendall | 2 hr |
| Sep 29, 4:27 PM CDT | Severe Thunderstorm Warning | EWX | Bexar, Guadalupe, Wilson | 48 min |
| Sep 29, 4:39 PM CDT | Severe Thunderstorm Warning | EWX | Bexar, Caldwell, Gonzales, Guadalupe, Wilson | 51 min |
| Sep 29, 4:57 PM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Zavala | 48 min |
Nearby
Red Flag Warnings in Texas, 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.