Alert archive / Texas / Red Flag Warnings in 2011
Red Flag Warning 3, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this red flag warning at Feb 24, 2011, 3:53 AM CST for 17 counties in Texas. It took effect at Feb 24, 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
- Feb 24, 2011, 3:53 AM CST (09:53 UTC)
- In effect from
- Feb 24, 2011, 11:00 AM CST
- Expired
- Feb 24, 2011, 7:00 PM CST
- In force
- 8 hr
- Issued by
- NWS Austin/San Antonio, TX
Counties Bandera County, TX, Blanco County, TX, Burnet County, TX, Dimmit County, TX, Edwards County, TX, Frio County, TX, Gillespie County, TX, Kendall County, TX, Kerr County, TX, Kinney County, TX, Llano County, TX, Maverick County, TX, Medina County, TX, Real County, TX, Uvalde County, TX, Val Verde County, TX, Zavala County, TX
The radar
The Laughlin AFB radar (KDFX), 90 km from the middle of the area, began a volume at 09:51 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 00:00Z, 9.9 hours before the alert went out and 137 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
- 243 J/kg
- Mixed-layer CIN
- -233 J/kg
- Mixed-layer LCL
- 1377 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
184 WWUS84 KEWX 240953 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 353 AM CST THU FEB 24 2011 ...A RED FLAG WARNING IS IN EFFECT FROM 11 AM TO 7 PM CST TODAY FOR WESTERN PORTIONS OF SOUTH CENTRAL TEXAS DUE TO BREEZY AND VERY DRY CONDITIONS EXPECTED... .RELATIVE HUMIDITIES IN THE TEENS AND SINGLE DIGITS WILL COMBINE WITH BREEZY CONDITIONS LATER TODAY TO PRODUCE DANGEROUS FIRE WEATHER CONDITIONS BEHIND A PACIFIC FRONT. THESE DANGEROUS FIRE WEATHER CONDITIONS ARE EXPECTED TO BEGIN LATE THIS MORNING ACROSS NORTHERN VAL VERDE COUNTY...THEN SPREAD EAST ACROSS THE HILL COUNTRY AND RIO GRANDE PLAINS THIS AFTERNOON. WINDS ARE FORECAST TO DECREASE TO BELOW CRITICAL THRESHOLDS THIS EVENING. TXZ171-172-183>190-202>204-217>219-228-242200- /O.NEW.KEWX.FW.W.0003.110224T1700Z-110225T0100Z/ LLANO-BURNET-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-GILLESPIE- KENDALL-BLANCO-KINNEY-UVALDE-MEDINA-MAVERICK-ZAVALA-FRIO-DIMMIT- 353 AM CST THU FEB 24 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 11 AM THIS MORNING TO 7 PM CST THIS EVENING. 20 FOOT WINDS OF 15-20 MPH WITH HIGHER GUSTS WILL COMBINE WITH RELATIVE HUMIDITIES IN THE SINGLE DIGITS AND TEENS TO PRODUCE DANGEROUS FIRE WEATHER CONDITIONS BEHIND A PACIFIC FRONT TODAY. 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. && $$
3 follow-up statements
945 WWUS84 KEWX 241708 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1108 AM CST THU FEB 24 2011 ...A RED FLAG WARNING IN EFFECT FROM THROUGH 7 PM CST THIS EVENING FOR THE WESTERN HALF OF SOUTH CENTRAL TEXAS DUE TO BREEZY AND VERY DRY CONDITIONS... ...ELEVATED TO NEAR CRITICAL FIRE WEATHER CONDITIONS WILL DEVELOP ACROSS THE ADJACENT AREAS OF SOUTH CENTRAL TEXAS THIS AFTERNOON... .RELATIVE HUMIDITIES FALLING INTO THE TEENS AND SINGLE DIGITS WILL COMBINE WITH GUSTY NORTHWEST WINDS TODAY TO PRODUCE DANGEROUS FIRE WEATHER CONDITIONS BEHIND A PACIFIC FRONT. WINDS ARE FORECAST TO DECREASE TO BELOW CRITICAL THRESHOLDS THIS EVENING. TXZ171-172-183>190-202>204-217>219-228-250100- /O.CON.KEWX.FW.W.0003.000000T0000Z-110225T0100Z/ LLANO-BURNET-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-GILLESPIE- KENDALL-BLANCO-KINNEY-UVALDE-MEDINA-MAVERICK-ZAVALA-FRIO-DIMMIT- 1108 AM CST THU FEB 24 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CST THIS EVENING... WEST OT NORTHWEST 20 FOOT WINDS OF 15-20 MPH WITH HIGHER GUSTS TO NEAR 30 MPH WILL COMBINE WITH RELATIVE HUMIDITIES IN THE SINGLE DIGITS AND TEENS TO PRODUCE DANGEROUS FIRE WEATHER CONDITIONS BEHIND A PACIFIC FRONT THROUGH 7 PM THIS EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS WEATHER CONDITIONS WILL PROMOTE FIRES THAT ARE DIFFICULT TO CONTROL ACROSS THE WARNED AREA. A RED FLAG WARNING IS COMPLETELY SEPARATE FROM A LOCAL BURN BAN WHICH IS ISSUED BY LOCAL OFFICIALS. && $$
716 WWUS84 KEWX 242137 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 337 PM CST THU FEB 24 2011 ...A RED FLAG WARNING REMAINS IN EFFECT THROUGH 7 PM CST THIS EVENING FOR THE WESTERN HALF OF SOUTH CENTRAL TEXAS DUE TO BREEZY AND VERY DRY CONDITIONS... ...ELEVATED TO NEAR CRITICAL FIRE WEATHER CONDITIONS WILL DEVELOP ACROSS THE ADJACENT AREAS OF SOUTH CENTRAL TEXAS THROUGH 7 PM... ...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING FOR THE EDWARDS PLATEAU AND WESTERN HILL COUNTRY... .RELATIVE HUMIDITIES FALLING INTO THE TEENS AND SINGLE DIGITS HAVE COMBINED WITH GUSTY NORTHWEST WINDS THIS AFTERNOON TO PRODUCE DANGEROUS FIRE WEATHER CONDITIONS BEHIND A COLD FRONT. WINDS WILL FALL BELOW CRITICAL THRESHOLDS THIS EVENING. A VIGOROUS UPPER AIR SYSTEM MOVING ACROSS THE SOUTHERN ROCKIES WILL RESULT IN A STRONG POTENTIAL FOR HIGH WINDS AND VERY LOW HUMIDITIES OVER FAR WESTERN SECTIONS OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY DEVELOPING SUNDAY AFTERNOON. THE FIRE WEATHER WATCH MAY NEED TO BE EXPANDED FURTHER EAST DEPENDING ON THE STRENGTH AND TIMING OF THIS STORM SYSTEM. TXZ183-184-202-250200- /O.NEW.KEWX.FW.A.0001.110227T1800Z-110228T0200Z/ /O.CON.KEWX.FW.W.0003.000000T0000Z-110225T0100Z/ VAL VERDE-EDWARDS-KINNEY- 337 PM CST THU FEB 24 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CST THIS EVENING... ...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING... THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING. A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CST THIS EVENING. RED FLAG CONDITIONS WILL CONTINUE THROUGH AROUND 7 PM. WINDS WILL GRADUALLY SUBSIDE OVER THE NEXT SEVERAL HOURS...HOWEVER HUMIDITIES WILL REMAIN LOW THIS EVENING AND NOT REBOUND UNTIL AROUND MIDNIGHT. 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. A FIRE WEATHER WATCH MEANS WEATHER CONDITIONS ARE EXPECTED TO PROMOTE FIRES THAT WILL BE DIFFICULT TO CONTROL ACROSS THE WATCH AREA. A FIRE WEATHER WATCH IS COMPLETELY SEPARATE FROM A LOCAL BURN BAN WHICH IS ISSUED BY LOCAL OFFICIALS. && $$ TXZ171-172-185>190-203-204-217>219-228-250100- /O.CON.KEWX.FW.W.0003.000000T0000Z-110225T0100Z/ LLANO-BURNET-REAL-KERR-BANDERA-GILLESPIE-KENDALL-BLANCO-UVALDE- MEDINA-MAVERICK-ZAVALA-FRIO-DIMMIT- 337 PM CST THU FEB 24 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CST THIS EVENING... RED FLAG CONDITIONS WILL CONTINUE THROUGH AROUND 7 PM. WINDS WILL GRADUALLY SUBSIDE OVER THE NEXT SEVERAL HOURS...HOWEVER HUMIDITIES WILL REMAIN LOW THIS EVENING AND NOT REBOUND UNTIL AROUND MIDNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS WEATHER CONDITIONS WILL PROMOTE FIRES THAT ARE DIFFICULT TO CONTROL ACROSS THE WARNED AREA. A RED FLAG WARNING IS COMPLETELY SEPARATE FROM A LOCAL BURN BAN WHICH IS ISSUED BY LOCAL OFFICIALS. && $$
314 WWUS84 KEWX 250057 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 657 PM CST THU FEB 24 2011 ...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING FOR THE EDWARDS PLATEAU AND WESTERN HILL COUNTRY... .RELATIVE HUMIDITIES HAVE PLUMMETED IN THE WAKE OF A COLD FRONT. HOWEVER...WINDS HAVE FALLEN BELOW RED FLAG CRITERIA THIS EVENING. RELATIVE HUMIDITIES ARE NOT EXPECTED TO RECOVER MUCH OVERNIGHT...WITH MAX RH VALUES GENERALLY BELOW 60 PERCENT ACROSS MUCH OF THE REGION AND BELOW 40 PERCENT ACROSS THE RIO GRANDE PLAINS. A VIGOROUS UPPER AIR SYSTEM MOVING ACROSS THE SOUTHERN ROCKIES WILL RESULT IN A STRONG POTENTIAL FOR HIGH WINDS AND VERY LOW HUMIDITIES OVER FAR WESTERN SECTIONS OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY DEVELOPING SUNDAY AFTERNOON. THE FIRE WEATHER WATCH MAY NEED TO BE EXPANDED FURTHER EAST DEPENDING ON THE STRENGTH AND TIMING OF THIS STORM SYSTEM. TXZ183-184-202-251300- /O.EXP.KEWX.FW.W.0003.000000T0000Z-110225T0100Z/ /O.CON.KEWX.FW.A.0001.110227T1800Z-110228T0200Z/ VAL VERDE-EDWARDS-KINNEY- 657 PM CST THU FEB 24 2011 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING... ...RED FLAG WARNING WILL EXPIRE AT 7 PM CST THIS EVENING... THE RED FLAG WARNING WILL EXPIRE AT 7 PM CST THIS EVENING. A FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING. && PRECAUTIONARY/PREPAREDNESS ACTIONS... A FIRE WEATHER WATCH MEANS WEATHER CONDITIONS ARE EXPECTED TO PROMOTE FIRES THAT WILL BE DIFFICULT TO CONTROL ACROSS THE WATCH AREA. A FIRE WEATHER WATCH IS COMPLETELY SEPARATE FROM A LOCAL BURN BAN WHICH IS ISSUED BY LOCAL OFFICIALS. && $$ TXZ171-172-185>190-203-204-217>219-228-250200- /O.EXP.KEWX.FW.W.0003.000000T0000Z-110225T0100Z/ LLANO-BURNET-REAL-KERR-BANDERA-GILLESPIE-KENDALL-BLANCO-UVALDE- MEDINA-MAVERICK-ZAVALA-FRIO-DIMMIT- 657 PM CST THU FEB 24 2011 ...RED FLAG WARNING WILL EXPIRE AT 7 PM CST THIS EVENING... THE RED FLAG WARNING WILL EXPIRE AT 7 PM CST THIS EVENING. $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 24, 3:37 PM CST | Fire Weather Watch | EWX | Dimmit, Edwards, Kinney, Maverick, Uvalde, Val Verde and 1 more | 47 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.