Alert archive / Texas / Red Flag Warnings in 2011
Red Flag Warning 7, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this red flag warning at Mar 10, 2011, 1:55 PM CST for 23 counties in Texas. It took effect at Mar 11, 2011, 11:00 AM CST. It was in force for 8 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
- Mar 10, 2011, 1:55 PM CST (19:55 UTC)
- In effect from
- Mar 11, 2011, 11:00 AM CST
- Expired
- Mar 11, 2011, 7:00 PM CST
- In force
- 8 hr
- Issued by
- NWS Austin/San Antonio, TX
All 23 counties
Atascosa County, TX, Bandera County, TX, Bexar County, TX, Blanco County, TX, Burnet County, TX, Comal County, TX, Dimmit County, TX, Edwards County, TX, Frio County, TX, Gillespie County, TX, Hays County, TX, Kendall County, TX, Kerr County, TX, Kinney 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, Zavala County, TX
The radar
The Austin/San Antonio radar (KEWX), 105 km from the middle of the area, began a volume at 19:56 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, 7.9 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
- 2901 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
395 WWUS84 KEWX 101955 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 155 PM CST THU MAR 10 2011 ...A RED FLAG WARNING HAS BEEN ISSUED BY NWS AUSTIN/SAN ANTONIO FROM 11 AM TO 7 PM FRIDAY NEAR AND WEST OF A BURNET TO CANYON LAKE TO PLEASANTON LINE FOR GUSTY AND DRY SOUTH WINDS... .THE EARLIER ISSUED FIRE WEATHER WATCH HAS BEEN UPGRADED TO A RED FLAG WARNING FROM 11 AM TO 7 PM FRIDAY FOR AREAS OVER THE WESTERN TWO THIRDS OF SOUTH CENTRAL TEXAS. THE AREA FOR THE RED FLAG WARNING IS ALONG AND WEST OF A LINE FROM BURNET TO CANYON LAKE TO PLEASANTON. SOUTH AND SOUTHEAST WINDS WILL INCREASE TO 15 TO 20 MPH AND GUSTY FROM LATE FRIDAY MORNING THROUGH THE AFTERNOON AND EARLY EVENING HOURS. THE RELATIVE HUMIDITY IS EXPECTED TO FALL INTO THE TEENS TO NEAR 20 PERCENT IN THE AFTERNOON ON FRIDAY. NEAR CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED EAST OF A BURNET TO CANYON LAKE TO PLEASANTON LINE... WHERE THE HUMIDITY WILL FALL TO THE MID 20S TO NEAR 30 PERCENT IN THE AFTERNOON. TXZ171-172-183>190-202>206-217>220-228-110400- /O.UPG.KEWX.FW.A.0003.110311T1700Z-110312T0200Z/ /O.NEW.KEWX.FW.W.0007.110311T1700Z-110312T0100Z/ LLANO-BURNET-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-GILLESPIE- KENDALL-BLANCO-KINNEY-UVALDE-MEDINA-BEXAR-COMAL-MAVERICK-ZAVALA- FRIO-ATASCOSA-DIMMIT- 155 PM CST THU MAR 10 2011 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 7 PM CST FRIDAY... THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM TO 7 PM CST FRIDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. A RED FLAG WARNING IS IN EFFECT FROM 11 AM TO 7 PM FRIDAY FOR AREAS OVER THE WESTERN TWO THIRDS OF SOUTH CENTRAL TEXAS. THE AREA FOR THE RED FLAG WARNING IS ALONG AND WEST OF A LINE FROM BURNET TO CANYON LAKE TO PLEASANTON. SOUTH AND SOUTHEAST WINDS WILL INCREASE TO 15 TO 20 MPH AND GUSTY FROM LATE FRIDAY MORNING THROUGH THE AFTERNOON AND EARLY EVENING HOURS. THE RELATIVE HUMIDITY IS EXPECTED TO FALL INTO THE TEENS TO NEAR 20 PERCENT IN THE AFTERNOON ON FRIDAY. NEAR CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED EAST OF A BURNET TO CANYON LAKE TO PLEASANTON LINE... WHERE THE HUMIDITY WILL FALL TO THE MID 20S TO NEAR 30 PERCENT IN THE AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS WEATHER CONDITIONS WILL PROMOTE FIRES THAT ARE DIFFICULT TO CONTROL ACROSS THE WARNED AREA. A RED FLAG WARNING IS COMPLETELY SEPARATE FROM A LOCAL BURN BAN WHICH IS ISSUED BY LOCAL OFFICIALS. && $$
4 follow-up statements
277 WWUS84 KEWX 110411 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1011 PM CST THU MAR 10 2011 ...A RED FLAG WARNING HAS BEEN ISSUED BY NWS AUSTIN/SAN ANTONIO FROM 11 AM TO 7 PM FRIDAY NEAR AND WEST OF A BURNET TO CANYON LAKE TO PLEASANTON LINE FOR GUSTY AND DRY SOUTH WINDS... .THE AREA FOR THE RED FLAG WARNING IS ALONG AND WEST OF A LINE FROM BURNET TO CANYON LAKE TO PLEASANTON. SOUTH AND SOUTHEAST WINDS WILL INCREASE TO 15 TO 20 MPH AND GUSTY FROM LATE FRIDAY MORNING THROUGH THE AFTERNOON AND EARLY EVENING HOURS. RELATIVE HUMIDITIES ARE EXPECTED TO FALL INTO THE TEENS TO NEAR 20 PERCENT IN THE AFTERNOON ON FRIDAY. NEAR CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED EAST OF A BURNET TO CANYON LAKE TO PLEASANTON LINE... WHERE THE HUMIDITY WILL FALL TO THE MID 20S TO NEAR 30 PERCENT IN THE AFTERNOON. TXZ171-172-183>190-202>206-217>220-228-111615- /O.CON.KEWX.FW.W.0007.110311T1700Z-110312T0100Z/ LLANO-BURNET-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-GILLESPIE- KENDALL-BLANCO-KINNEY-UVALDE-MEDINA-BEXAR-COMAL-MAVERICK-ZAVALA- FRIO-ATASCOSA-DIMMIT- 1011 PM CST THU MAR 10 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 7 PM CST FRIDAY... A RED FLAG WARNING IS IN EFFECT FROM 11 AM TO 7 PM FRIDAY FOR AREAS OVER THE WESTERN TWO THIRDS OF SOUTH CENTRAL TEXAS. THE AREA FOR THE RED FLAG WARNING IS ALONG AND WEST OF A LINE FROM BURNET TO CANYON LAKE TO PLEASANTON. SOUTH AND SOUTHEAST WINDS WILL INCREASE TO 15 TO 20 MPH AND GUSTY FROM LATE FRIDAY MORNING THROUGH THE AFTERNOON AND EARLY EVENING HOURS. RELATIVE HUMIDITIES ARE EXPECTED TO FALL INTO THE TEENS TO NEAR 20 PERCENT IN THE AFTERNOON ON FRIDAY. NEAR CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED EAST OF A BURNET TO CANYON LAKE TO PLEASANTON LINE... WHERE THE HUMIDITY WILL FALL TO THE MID 20S TO NEAR 30 PERCENT IN THE AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS WEATHER CONDITIONS WILL PROMOTE FIRES THAT ARE DIFFICULT TO CONTROL ACROSS THE WARNED AREA. A RED FLAG WARNING IS COMPLETELY SEPARATE FROM A LOCAL BURN BAN WHICH IS ISSUED BY LOCAL OFFICIALS. && $$
843 WWUS84 KEWX 111037 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 437 AM CST FRI MAR 11 2011 ...A RED FLAG WARNING IS IN EFFECT FROM 11 AM TO 7 PM TODAY ALONG AND WEST OF A TAYLOR TO SAN ANTONIO TO CAMPBELLTON LINE FOR GUSTY AND DRY SOUTH WINDS... .SOUTH AND SOUTHEAST 20-FOOT LEVEL WINDS WILL INCREASE TO 15 TO 20 MPH WITH HIGHER GUSTS FROM LATE THIS MORNING THROUGH EARLY THIS EVENING. RELATIVE HUMIDITIES ARE EXPECTED TO FALL INTO THE TEENS TO NEAR 20 PERCENT IN THE AFTERNOON HOURS. MOISTURE WILL GRADUALLY INCREASE IN THE EARLY EVENING HOURS AS 20-FOOT WIND SPEEDS FALL TO BETWEEN 10 AND 15 MPH. EAST OF THE RED FLAG WARNING AREA....NEAR CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED FOR THE REMAINDER OF SOUTH CENTRAL TEXAS...WHERE SIMILAR WIND SPEEDS WILL BE ACCOMPANIED BY MINIMUM HUMIDITY VALUES IN THE 20S TO NEAR 30 PERCENT. TXZ173-191-192-120100- /O.EXA.KEWX.FW.W.0007.110311T1700Z-110312T0100Z/ WILLIAMSON-HAYS-TRAVIS- 437 AM CST FRI MAR 11 2011 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CST THIS EVENING... THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM LATE THIS MORNING THROUGH EARLY THIS EVENING. SOUTH TO SOUTHEAST 20-FOOT LEVEL WINDS WILL INCREASE TO 15 TO 20 MPH WITH GUSTS TO 30 MPH FROM LATE THIS MORNING THROUGH EARLY THIS EVENING. RELATIVE HUMIDITIES ARE EXPECTED TO FALL INTO THE TEENS TO NEAR 20 PERCENT THIS AFTERNOON. AFTER 8 PM THIS EVENING...THE RELATIVE HUMIDITY WILL BEGIN TO RECOVER QUICKLY...INCREASING TO 45 TO 60 PERCENT BY MIDNIGHT AND TO 80 TO 100 PERCENT BY SUNRISE SATURDAY MORNING. EXPECT 20-FOOT LEVEL WIND SPEEDS TO FALL INTO THE 10 TO 15 MPH RANGE THIS EVENING AND BELOW 10 MPH LATE TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS WEATHER CONDITIONS WILL PROMOTE FIRES THAT ARE DIFFICULT TO CONTROL ACROSS THE WARNED AREA. A RED FLAG WARNING IS COMPLETELY SEPARATE FROM A LOCAL BURN BAN WHICH IS ISSUED BY LOCAL OFFICIALS. && $$ TXZ171-172-183>190-202>206-217>220-228-120100- /O.CON.KEWX.FW.W.0007.110311T1700Z-110312T0100Z/ LLANO-BURNET-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-GILLESPIE- KENDALL-BLANCO-KINNEY-UVALDE-MEDINA-BEXAR-COMAL-MAVERICK-ZAVALA- FRIO-ATASCOSA-DIMMIT- 437 AM CST FRI MAR 11 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CST THIS EVENING... SOUTH TO SOUTHEAST 20-FOOT LEVEL WINDS WILL INCREASE TO 15 TO 20 MPH WITH GUSTS TO 30 MPH FROM LATE THIS MORNING THROUGH EARLY THIS EVENING. RELATIVE HUMIDITIES ARE EXPECTED TO FALL INTO THE TEENS TO NEAR 20 PERCENT THIS AFTERNOON. AFTER 8 PM THIS EVENING...THE RELATIVE HUMIDITY WILL BEGIN TO RECOVER QUICKLY...INCREASING TO 45 TO 60 PERCENT BY MIDNIGHT AND TO 80 TO 100 PERCENT BY SUNRISE SATURDAY MORNING. EXPECT 20-FOOT LEVEL WIND SPEEDS TO FALL INTO THE 10 TO 15 MPH RANGE THIS EVENING AND BELOW 10 MPH LATE TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS WEATHER CONDITIONS WILL PROMOTE FIRES THAT ARE DIFFICULT TO CONTROL ACROSS THE WARNED AREA. A RED FLAG WARNING IS COMPLETELY SEPARATE FROM A LOCAL BURN BAN WHICH IS ISSUED BY LOCAL OFFICIALS. && $$
479 WWUS84 KEWX 111705 AAA RFWEWX URGENT - FIRE WEATHER MESSAGE...UPDATED NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1105 AM CST FRI MAR 11 2011 ...A RED FLAG WARNING IS NOW IN EFFECT THROUGH 7 PM THIS EVENING ALONG AND WEST OF A TAYLOR TO SAN ANTONIO TO CAMPBELLTON LINE FOR GUSTY AND DRY SOUTH WINDS... .SOUTH AND SOUTHEAST 20-FOOT LEVEL WINDS WILL INCREASE TO 15 TO 20 MPH WITH HIGHER GUSTS THROUGH EARLY THIS EVENING. RELATIVE HUMIDITIES ARE EXPECTED TO FALL INTO THE TEENS TO NEAR 20 PERCENT IN THE AFTERNOON HOURS. MOISTURE WILL GRADUALLY INCREASE IN THE EARLY EVENING HOURS AS 20-FOOT WIND SPEEDS FALL TO BETWEEN 10 AND 15 MPH. EAST OF THE RED FLAG WARNING AREA....NEAR CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED FOR THE REMAINDER OF SOUTH CENTRAL TEXAS...WHERE SIMILAR WIND SPEEDS WILL BE ACCOMPANIED BY MINIMUM HUMIDITY VALUES IN THE 20S TO NEAR 30 PERCENT. TXZ171>173-183>192-202>206-217>220-228-120100- /O.CON.KEWX.FW.W.0007.000000T0000Z-110312T0100Z/ LLANO-BURNET-WILLIAMSON-VAL VERDE-EDWARDS-REAL-KERR-BANDERA- GILLESPIE-KENDALL-BLANCO-HAYS-TRAVIS-KINNEY-UVALDE-MEDINA-BEXAR- COMAL-MAVERICK-ZAVALA-FRIO-ATASCOSA-DIMMIT- 1105 AM CST FRI MAR 11 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CST THIS EVENING... A RED FLAG WARNING IS NOW IN EFFECT UNTIL 7 PM CST THIS EVENING. AFTER 8 PM THIS EVENING...THE RELATIVE HUMIDITY WILL BEGIN TO RECOVER QUICKLY...INCREASING TO 45 TO 60 PERCENT BY MIDNIGHT AND TO 80 TO 100 PERCENT BY SUNRISE SATURDAY MORNING. EXPECT 20-FOOT LEVEL WIND SPEEDS TO FALL INTO THE 10 TO 15 MPH RANGE THIS EVENING AND BELOW 10 MPH LATE TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS WEATHER CONDITIONS WILL PROMOTE FIRES THAT ARE DIFFICULT TO CONTROL ACROSS THE WARNED AREA. A RED FLAG WARNING IS COMPLETELY SEPARATE FROM A LOCAL BURN BAN WHICH IS ISSUED BY LOCAL OFFICIALS. && $$
296 WWUS84 KEWX 120104 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 704 PM CST FRI MAR 11 2011 ...THE RED FLAG WARNING FOR SOUTH CENTRAL TEXAS AND THE HILL COUNTRY IS NO LONGER IN EFFECT... .RELATIVE HUMIDITIES HAVE INCREASED TO AT OR ABOVE 20 PERCENT ACROSS THE REGION. IN ADDITION SOUTHERLY WINDS WILL CONTINUE THROUGHOUT THE EVENING AND OVERNIGHT BUT WILL BE BELOW RED FLAG CRITERIA. TXZ171>173-183>192-202>206-217>220-228-120215- /O.EXP.KEWX.FW.W.0007.000000T0000Z-110312T0100Z/ LLANO-BURNET-WILLIAMSON-VAL VERDE-EDWARDS-REAL-KERR-BANDERA- GILLESPIE-KENDALL-BLANCO-HAYS-TRAVIS-KINNEY-UVALDE-MEDINA-BEXAR- COMAL-MAVERICK-ZAVALA-FRIO-ATASCOSA-DIMMIT- 704 PM CST FRI MAR 11 2011 ...RED FLAG WARNING HAS EXPIRED... THE RED FLAG WARNING IS NO LONGER IN EFFECT. $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 10, 4:33 AM CST | Fire Weather Watch | EWX | Atascosa, Bandera, Bexar, Blanco, Burnet, Comal and 14 more | 9 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.