Alert archive / Texas / Red Flag Warnings in 2011
Red Flag Warning 27, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this red flag warning at Nov 3, 2011, 4:15 AM CDT for 19 counties in Texas. It took effect at Nov 3, 2011, 11:00 AM CDT. It was in force for 5 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
- Nov 3, 2011, 4:15 AM CDT (09:15 UTC)
- In effect from
- Nov 3, 2011, 11:00 AM CDT
- Expired
- Nov 3, 2011, 4:00 PM CDT
- In force
- 5 hr
- Issued by
- NWS Austin/San Antonio, TX
Counties Atascosa 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, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Karnes County, TX, Kendall County, TX, Lavaca County, TX, Lee County, TX, Travis County, TX, Williamson County, TX, Wilson County, TX
The radar
The Austin/San Antonio radar (KEWX), 22 km from the middle of the area, began a volume at 09:15 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 00:00Z, 9.3 hours before the alert went out and 233 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
- 294 J/kg
- Mixed-layer CIN
- -204 J/kg
- Mixed-layer LCL
- 1086 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 102 m²/s²
- 0-3 km storm-relative helicity
- 185 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
853 WWUS84 KEWX 030915 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 415 AM CDT THU NOV 3 2011 ...RED FLAG WARNING IN EFFECT FOR THE EASTERN HALF OF SOUTH CENTRAL TEXAS FROM 11 AM THIS MORNING TO 4 PM CDT THIS AFTERNOON DUE TO STRONG WINDS AND DRY CONDITIONS IN THE WAKE OF A COLD FRONT... .DRY WINDY CONDITIONS BEHIND A COLD FRONT TODAY WILL RESULT IN CRITICAL FIRE WEATHER CONDITIONS DEVELOPING BY LATE THIS MORNING AND CONTINUING INTO THE AFTERNOON HOURS. 20-FOOT WINDS OF 15 TO 20 MPH ALONG WITH HUMIDITIES FALLING TO 15 TO 20 PERCENT ARE EXPECTED. THESE CONDITIONS WILL DEVELOP GENERALLY ALONG AND EAST OF HIGHWAY 281 FROM 11 AM TO 4 PM. TXZ172-173-189>194-205>209-220>225-032100- /O.NEW.KEWX.FW.W.0027.111103T1600Z-111103T2100Z/ BURNET-WILLIAMSON-KENDALL-BLANCO-HAYS-TRAVIS-BASTROP-LEE-BEXAR- COMAL-GUADALUPE-CALDWELL-FAYETTE-ATASCOSA-WILSON-KARNES-GONZALES- DE WITT-LAVACA- 415 AM CDT THU NOV 3 2011 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 4 PM CDT THIS AFTERNOON FOR STRONG WINDS AND LOW RELATIVE HUMIDITIES 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 11 AM THIS MORNING TO 4 PM CDT THIS AFTERNOON. * AFFECTED AREA...THE FOLLOWING SOUTH CENTRAL TEXAS COUNTIES... BURNET...WILLIAMSON...KENDALL...BLANCO...HAYS...TRAVIS... BASTROP...LEE...BEXAR...COMAL...GUADALUPE...CALDWELL... FAYETTE...ATASCOSA...WILSON...KARNES...GONZALES...DE WITT... LAVACA. * 20-FOOT WIND...NORTH AT 15 TO 20 MPH. * HUMIDITY...15 TO 20 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 |
|---|---|---|---|---|
| Nov 3, 4:00 AM CDT | Freeze Warning | EWX | Bandera, Bastrop, Bexar, Blanco, Burnet, Caldwell and 16 more | 29 hr |
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.