Alert archive / Texas / Red Flag Warnings in 2012
Red Flag Warning 5, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this red flag warning at Dec 24, 2012, 3:23 PM CST for 33 counties in Texas. It took effect at Dec 25, 2012, 12:00 PM CST. It was in force for 7 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
- Dec 24, 2012, 3:23 PM CST (21:23 UTC)
- In effect from
- Dec 25, 2012, 12:00 PM CST
- Expired
- Dec 25, 2012, 7:00 PM CST
- In force
- 7 hr
- Issued by
- NWS Austin/San Antonio, TX
All 33 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, Dimmit County, TX, Edwards 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, Kinney County, TX, Lavaca County, TX, Lee County, TX, Llano County, TX, Maverick County, TX, Medina County, TX, Real County, TX, Travis County, TX, Uvalde County, TX, Val Verde County, TX, Williamson County, TX, Wilson County, TX, Zavala County, TX
The radar
The Austin/San Antonio radar (KEWX), 57 km from the middle of the area, began a volume at 21:28 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
Del Rio, TX (KDRT), launched 12:00Z, 9.4 hours before the alert went out and 218 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
- 1876 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- -48 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
820 WWUS84 KEWX 242123 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 323 PM CST MON DEC 24 2012 ...DRY AND COLD AIRMASS WITH STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY EXPECTED TUESDAY AFTERNOON AND EARLY EVENING... .IN THE WAKE OF A FRONTAL BOUNDARY...DRY AND COLD AIR WILL MOVE IN WITH STRONG NORTHWESTERLY WINDS. RELATIVE HUMIDITY WILL DROP TO CRITICAL LEVELS AROUND NOON TUESDAY BEGINNING IN THE SOUTHWEST AND SPREADING NORTH AND NORTHEASTWARD ACROSS MOST AREAS THROUGH THE LATE AFTERNOON PERIOD. AT THE SAME TIME WINDS OUT OF THE NORTHWEST WILL INCREASE AT 20 TO 30 MPH WITH GUSTS TO 40 MPH. WINDS WILL SUBSIDE TUESDAY EVENING AND RELATIVE HUMIDITY WILL RECOVER AS THE TEMPERATURES FALL. TXZ183-187-189>193-202>208-217>225-228-251000- /O.UPG.KEWX.FW.A.0005.121225T1800Z-121226T0100Z/ /O.NEW.KEWX.FW.W.0005.121225T1800Z-121226T0100Z/ VAL VERDE-BANDERA-KENDALL-BLANCO-HAYS-TRAVIS-BASTROP-KINNEY- UVALDE-MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-MAVERICK-ZAVALA-FRIO- ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA-DIMMIT- 323 PM CST MON DEC 24 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM CST TUESDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITIES ACROSS MOST AREAS OF SOUTH CENTRAL TEXAS. * AFFECTED AREA...THE FOLLOWING SOUTH CENTRAL TEXAS COUNTIES... VAL VERDE...BANDERA...KENDALL...BLANCO...HAYS...TRAVIS... BASTROP...KINNEY...UVALDE...MEDINA...BEXAR...COMAL... GUADALUPE...CALDWELL...MAVERICK...ZAVALA...FRIO...ATASCOSA... WILSON...KARNES...GONZALES...DE WITT...LAVACA...DIMMIT. * 20-FOOT WIND...20-30 MPH FROM THE NORTHWEST. * HUMIDITY...13-19 PERCENT. * 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 THAT MAY GENERATE SPARKS. ACCIDENTAL IGNITIONS WILL HAVE THE POTENTIAL TO GROW QUICKLY INTO DANGEROUS WIND DRIVEN WILDFIRES. && $$ TXZ171>173-184>186-188-194-209-251000- /O.NEW.KEWX.FW.W.0005.121225T1800Z-121226T0100Z/ LLANO-BURNET-WILLIAMSON-EDWARDS-REAL-KERR-GILLESPIE-LEE-FAYETTE- 323 PM CST MON DEC 24 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM CST TUESDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITIES ACROSS MOST AREAS ACROSS SOUTH CENTRAL TEXAS... THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TO 7 PM CST TUESDAY. * AFFECTED AREA...THE FOLLOWING SOUTH CENTRAL TEXAS COUNTIES... LLANO...BURNET...WILLIAMSON...EDWARDS...REAL...KERR... GILLESPIE...LEE...FAYETTE. * 20-FOOT WIND...20-30 MPH FROM THE NORTHWEST. * HUMIDITY...23-29 PERCENT. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. AVOID THE USE OF OPEN FLAMES OR ANY ACTIVITIES THAT MAY GENERATE SPARKS. ACCIDENTAL IGNITIONS WILL HAVE THE POTENTIAL TO GROW QUICKLY INTO DANGEROUS WIND DRIVEN WILDFIRES. && $$ FOR INFORMATION ON BURN BANS PLEASE VISIT THE TEXAS INTERAGENCY COORDINATION CENTER WEBSITE AT: TICC.TAMU.EDU
3 follow-up statements
626 WWUS84 KEWX 250343 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 943 PM CST MON DEC 24 2012 ...A RED FLAG WARNING IS IN EFFECT FROM NOON TO 7 PM CST TUESDAY FOR ALL OF SOUTH CENTRAL TEXAS... .IN THE WAKE OF A FRONTAL BOUNDARY...DRY AND COLD AIR WILL MOVE IN WITH STRONG NORTHWESTERLY WINDS. RELATIVE HUMIDITY WILL DROP TO CRITICAL LEVELS AROUND NOON TUESDAY BEGINNING IN THE SOUTHWEST AND SPREADING NORTH AND NORTHEASTWARD ACROSS MOST AREAS THROUGH THE LATE AFTERNOON PERIOD. AT THE SAME TIME WINDS OUT OF THE NORTHWEST WILL INCREASE AT 20 TO 30 MPH WITH GUSTS TO 40 MPH. WINDS WILL SUBSIDE TUESDAY EVENING AND RELATIVE HUMIDITY WILL RECOVER AS THE TEMPERATURES FALL. TXZ171>173-183>194-202>209-217>225-228-251000- /O.CON.KEWX.FW.W.0005.121225T1800Z-121226T0100Z/ LLANO-BURNET-WILLIAMSON-VAL VERDE-EDWARDS-REAL-KERR-BANDERA- GILLESPIE-KENDALL-BLANCO-HAYS-TRAVIS-BASTROP-LEE-KINNEY-UVALDE- MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-FAYETTE-MAVERICK-ZAVALA- FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA-DIMMIT- 943 PM CST MON DEC 24 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 7 PM CST TUESDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITIES ACROSS MOST AREAS OF SOUTH CENTRAL TEXAS... * AFFECTED AREA...THE FOLLOWING SOUTH CENTRAL TEXAS COUNTIES... LLANO...BURNET...WILLIAMSON...VAL VERDE...EDWARDS...REAL... KERR...BANDERA...GILLESPIE...KENDALL...BLANCO...HAYS... TRAVIS...BASTROP...LEE...KINNEY...UVALDE...MEDINA...BEXAR... COMAL...GUADALUPE...CALDWELL...FAYETTE...MAVERICK...ZAVALA... FRIO...ATASCOSA...WILSON...KARNES...GONZALES...DE WITT... LAVACA...DIMMIT. * 20-FOOT WIND...20-30 MPH FROM THE NORTHWEST. * HUMIDITY...13-19 PERCENT. * 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 THAT 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
029 WWUS84 KEWX 251026 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 426 AM CST TUE DEC 25 2012 ...A RED FLAG WARNING IS IN EFFECT FROM NOON TO 7 PM CST TUESDAY FOR ALL OF SOUTH CENTRAL TEXAS... .IN THE WAKE OF A COLD FRONT...DRY AND COLD AIR WILL MOVE IN WITH STRONG NORTHWESTERLY WINDS. RELATIVE HUMIDITY WILL DROP TO CRITICAL LEVELS AROUND NOON TUESDAY BEGINNING IN THE SOUTHWEST AND SPREADING NORTH AND NORTHEASTWARD ACROSS MOST AREAS THROUGH THE LATE AFTERNOON PERIOD. AT THE SAME TIME WINDS OUT OF THE NORTHWEST WILL INCREASE AT 20 TO 30 MPH WITH GUSTS TO 40 MPH. RELATIVE HUMIDITY WILL RECOVER AS THE TEMPERATURES FALL THROUGH THE EVENING. WINDS WILL REMAIN ABOVE CRITICAL LEVELS UNTIL AROUND MIDNIGHT. TXZ171>173-183>194-202>209-217>225-228-252200- /O.CON.KEWX.FW.W.0005.121225T1800Z-121226T0100Z/ LLANO-BURNET-WILLIAMSON-VAL VERDE-EDWARDS-REAL-KERR-BANDERA- GILLESPIE-KENDALL-BLANCO-HAYS-TRAVIS-BASTROP-LEE-KINNEY-UVALDE- MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-FAYETTE-MAVERICK-ZAVALA- FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA-DIMMIT- 426 AM CST TUE DEC 25 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM CST THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITIES ACROSS ALL OF SOUTH CENTRAL TEXAS... * AFFECTED AREA...THE FOLLOWING SOUTH CENTRAL TEXAS COUNTIES... LLANO...BURNET...WILLIAMSON...VAL VERDE...EDWARDS...REAL... KERR...BANDERA...GILLESPIE...KENDALL...BLANCO...HAYS... TRAVIS...BASTROP...LEE...KINNEY...UVALDE...MEDINA...BEXAR... COMAL...GUADALUPE...CALDWELL...FAYETTE...MAVERICK...ZAVALA... FRIO...ATASCOSA...WILSON...KARNES...GONZALES...DE WITT... LAVACA...DIMMIT. * 20-FOOT WIND...20-30 MPH FROM THE NORTHWEST. * HUMIDITY...13-19 PERCENT. * 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 THAT 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
337 WWUS84 KEWX 252147 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 347 PM CST TUE DEC 25 2012 ...A RED FLAG WARNING IS IN EFFECT THROUGH 7 PM CST TODAY FOR ALL OF SOUTH CENTRAL TEXAS... .IN THE WAKE OF A COLD FRONT...DRY AND COLD AIR WILL MOVE IN WITH STRONG NORTHWESTERLY WINDS. RELATIVE HUMIDITY WILL DROP TO CRITICAL LEVELS...AS STRONG NORTHWEST WINDS CONTINUE THROUGH THE LATE AFTERNOON AND EARLY EVENING. NORTHWEST WINDS WILL CONTINUE AT 20 TO 35 MPH...WITH GUSTS TO NEAR 40 MPH. THE RELATIVE HUMIDITY WILL RECOVER AS THE TEMPERATURES FALL TONIGHT. BREEZY AND COLD NORTH WINDS WILL CONTINUE THROUGH THE NIGHT. TXZ171>173-183>194-202>209-217>225-228-260100- /O.CON.KEWX.FW.W.0005.000000T0000Z-121226T0100Z/ LLANO-BURNET-WILLIAMSON-VAL VERDE-EDWARDS-REAL-KERR-BANDERA- GILLESPIE-KENDALL-BLANCO-HAYS-TRAVIS-BASTROP-LEE-KINNEY-UVALDE- MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-FAYETTE-MAVERICK-ZAVALA- FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA-DIMMIT- 347 PM CST TUE DEC 25 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CST THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITIES ACROSS THE HILL COUNTRY AND SOUTH CENTRAL TEXAS... * AFFECTED AREA...THE FOLLOWING SOUTH CENTRAL TEXAS COUNTIES... LLANO...BURNET...WILLIAMSON...VAL VERDE...EDWARDS...REAL... KERR...BANDERA...GILLESPIE...KENDALL...BLANCO...HAYS... TRAVIS...BASTROP...LEE...KINNEY...UVALDE...MEDINA...BEXAR... COMAL...GUADALUPE...CALDWELL...FAYETTE...MAVERICK...ZAVALA... FRIO...ATASCOSA...WILSON...KARNES...GONZALES...DE WITT... LAVACA...DIMMIT. * 20-FOOT WIND...20-30 MPH FROM THE NORTHWEST. * HUMIDITY...15 TO NEAR 20 TO 25 PERCENT. * 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 THAT 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 |
|---|---|---|---|---|
| Dec 24, 6:37 AM CST | Fire Weather Watch | EWX | Atascosa, Bandera, Bastrop, Bexar, Blanco, Caldwell and 18 more | 9 hr |
| Dec 24, 3:02 PM CST | Wind Advisory | EWX | Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 27 more | 28 hr |
Nearby
Red Flag Warnings in Texas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.