Alert archive / Texas / Red Flag Warnings in 2007

Red Flag Warning 4, NWS Austin/San Antonio, TX

February 23, 200733 counties in Texas

NWS Austin/San Antonio, TX issued this red flag warning at Feb 23, 2007, 3:11 PM CST for 33 counties in Texas. It took effect at Feb 24, 2007, 9:00 AM CST. It was in force for 10 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 23, 2007, 3:11 PM CST (21:11 UTC)
In effect from
Feb 24, 2007, 9:00 AM CST
Expired
Feb 24, 2007, 7:00 PM CST
In force
10 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 21:11 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, 9.2 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.

Skew-T log-pSkew-T log-p diagram, Del Rio, TX at 12:00Z on 2007-02-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 12:00Z on 2007-02-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 141 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
597 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
141 m²/s²
0-3 km storm-relative helicity
190 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS84 KEWX 232111
RFWEWX

RED FLAG WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
311 PM CST FRI FEB 23 2007

...A RED FLAG WARNING IS IN EFFECT FROM 9 AM SATURDAY MORNING
TO 7 PM SATURDAY FOR MUCH OF SOUTH CENTRAL TEXAS AND THE HILL
COUNTRY...

.A STRONG STORM SYSTEM WILL MOVE ACROSS THE PLAINS STATES PUSHING
A PACIFIC COLD FRONT THROUGH SOUTH CENTRAL TEXAS EARLY SATURDAY.
IN ITS WAKE...STRONG GUSTY NORTHWEST WINDS AND VERY LOW RELATIVE
HUMIDITIES WILL CREATE THE POTENTIAL FOR EXTREME FIRE WEATHER
BEHAVIOR LATE SATURDAY MORNING THROUGH 7 PM SATURDAY.

TXZ171>173-183>194-202>208-217>221-228-240515-
/O.UPG.KEWX.FW.A.0002.070224T1500Z-070225T0000Z/
/O.NEW.KEWX.FW.W.0004.070224T1500Z-070225T0100Z/
LLANO-BURNET-WILLIAMSON-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-
GILLESPIE-KENDALL-BLANCO-HAYS-TRAVIS-BASTROP-LEE-KINNEY-UVALDE-
MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-MAVERICK-ZAVALA-FRIO-
ATASCOSA-WILSON-DIMMIT-
311 PM CST FRI FEB 23 2007

...RED FLAG WARNING IN EFFECT FROM 9 AM TO 7 PM CST SATURDAY...

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
RED FLAG WARNING...WHICH IS IN EFFECT FROM 9 AM TO 7 PM CST
SATURDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

A STRONG STORM SYSTEM WILL MOVE ACROSS THE PLAINS STATES PUSHING
A PACIFIC COLD FRONT THROUGH SOUTH CENTRAL TEXAS EARLY SATURDAY.
IN ITS WAKE...STRONG NORTHWEST WINDS OF 15 TO 30 MPH WITH GUSTS TO
AS HIGH AS 40 MPH CAN BE EXPECTED. RELATIVE HUMIDITIES WILL FALL
BELOW 25 PERCENT TO AS LOW AS 10 PERCENT. THIS WILL CREATE THE
POTENTIAL FOR EXTREME FIRE WEATHER BEHAVIOR FROM LATE SATURDAY
MORNING THROUGH 7 PM SATURDAY.

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.

$$

TXZ209-222>225-240515-
/O.NEW.KEWX.FW.W.0004.070224T1500Z-070225T0100Z/
FAYETTE-KARNES-GONZALES-DE WITT-LAVACA-
311 PM CST FRI FEB 23 2007

...RED FLAG WARNING IN EFFECT FROM 9 AM TO 7 PM CST SATURDAY...

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
RED FLAG WARNING...WHICH IS IN EFFECT FROM 9 AM TO 7 PM CST
SATURDAY. 

A STRONG STORM SYSTEM WILL MOVE ACROSS THE PLAINS STATES PUSHING
A PACIFIC COLD FRONT THROUGH SOUTH CENTRAL TEXAS EARLY SATURDAY.
IN ITS WAKE...STRONG NORTHWEST WINDS OF 15 TO 30 MPH WITH GUSTS TO
AS HIGH AS 40 MPH CAN BE EXPECTED. RELATIVE HUMIDITIES WILL FALL
BELOW 25 PERCENT TO AS LOW AS 10 PERCENT. THIS WILL CREATE THE
POTENTIAL FOR EXTREME FIRE WEATHER BEHAVIOR FROM LATE SATURDAY
MORNING THROUGH 7 PM SATURDAY.

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
000 
WWUS84 KEWX 240511
RFWEWX

RED FLAG WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1111 PM CST FRI FEB 23 2007

...A RED FLAG WARNING IS IN EFFECT FROM 9 AM SATURDAY TO 7 PM
SATURDAY FOR MUCH OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY...

.A STRONG STORM SYSTEM WILL MOVE ACROSS THE PLAINS STATES PUSHING
A PACIFIC COLD FRONT THROUGH SOUTH CENTRAL TEXAS EARLY SATURDAY.
IN ITS WAKE...STRONG GUSTY NORTHWEST WINDS AND VERY LOW RELATIVE
HUMIDITIES WILL CREATE THE POTENTIAL FOR EXTREME FIRE WEATHER
BEHAVIOR LATE SATURDAY MORNING THROUGH 7 PM SATURDAY.

TXZ171>173-183>194-202>209-217>225-228-241300-
/O.CON.KEWX.FW.W.0004.070224T1500Z-070225T0100Z/
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-
1111 PM CST FRI FEB 23 2007

...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM TO 7 PM CST
SATURDAY...

A RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM TO 7 PM CST
SATURDAY. 

A STRONG STORM SYSTEM WILL MOVE ACROSS THE PLAINS STATES PUSHING
A PACIFIC COLD FRONT THROUGH SOUTH CENTRAL TEXAS EARLY SATURDAY.
IN ITS WAKE...STRONG NORTHWEST WINDS OF 15 TO 30 MPH WITH GUSTS
TO AS HIGH AS 40 MPH CAN BE EXPECTED. RELATIVE HUMIDITIES WILL
FALL BELOW 25 PERCENT TO AS LOW AS 10 PERCENT. THIS WILL CREATE
THE POTENTIAL FOR EXTREME FIRE WEATHER BEHAVIOR FROM LATE
SATURDAY MORNING THROUGH 7 PM SATURDAY.

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.

$$
000 
WWUS84 KEWX 241256
RFWEWX

RED FLAG WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
656 AM CST SAT FEB 24 2007

...A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM THIS EVENING
FOR ALL OF SOUTH CENTRAL TEXAS...

.A DRYLINE AND PACIFIC COLD FRONT WILL MOVE ACROSS SOUTH CENTRAL
TEXAS THIS MORNING. IN ITS WAKE...STRONG GUSTY WEST TO NORTHWEST
WINDS AND VERY LOW RELATIVE HUMIDITIES WILL CREATE THE POTENTIAL
FOR EXTREME FIRE WEATHER BEHAVIOR FROM LATE THIS MORNING THROUGH
EARLY THIS EVENING.

TXZ171>173-183>194-202>209-217>225-228-242200-
/O.CON.KEWX.FW.W.0004.070224T1500Z-070225T0100Z/
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-
656 AM CST SAT FEB 24 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CST THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CST THIS EVENING.

A DRYLINE AND PACIFIC COLD FRONT WILL MOVE ACROSS SOUTH CENTRAL
TEXAS THIS MORNING. IN ITS WAKE...WEST TO NORTHWEST WINDS OF 15 TO
30 MPH WITH GUSTS TO AS HIGH AS 40 MPH CAN BE EXPECTED. RELATIVE
HUMIDITIES WILL FALL BELOW 20 PERCENT AND TO LESS THAN 10 PERCENT
ACROSS THE WESTERN HILL COUNTRY AND EDWARDS PLATEAU. THIS WILL
CREATE THE POTENTIAL FOR EXTREME FIRE WEATHER BEHAVIOR FROM LATE
THIS MORNING THROUGH EARLY THIS EVENING.

AFTER SUNSET...WINDS WILL DECREASE RAPIDLY AND RELATIVE HUMIDITIES
WILL SLOWLY RECOVER. 

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.

$$
000 
WWUS84 KEWX 242127
RFWEWX

RED FLAG WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
327 PM CST SAT FEB 24 2007

...A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM THIS EVENING
FOR ALL OF SOUTH CENTRAL TEXAS...

.STRONG GUSTY WEST TO NORTHWEST WINDS AND VERY LOW RELATIVE
HUMIDITIES WILL CONTINUE THE POTENTIAL FOR EXTREME FIRE WEATHER
BEHAVIOR THROUGH 7 PM CST. WINDS ARE EXPECTED TO DIMINISH 
EARLY THIS EVENING.

TXZ171>173-183>194-202>209-217>225-228-250100-
/O.CON.KEWX.FW.W.0004.000000T0000Z-070225T0100Z/
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-
327 PM CST SAT FEB 24 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CST THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CST THIS EVENING.

WEST TO NORTHWEST WINDS OF 15 TO 30 MPH WITH GUSTS 35 TO 40 MPH
AND VERY LOW HUMIDITY IS EXPECTED THROUGH 6 PM...THEN DIMINISHING
TO 15 TO 25 MPH AFTER 6 PM. RELATIVE HUMIDITIES WILL REMAIN BELOW
25 PERCENT THROUGH 7 PM. THIS WILL CONTINUE THE POTENTIAL FOR
EXTREME FIRE WEATHER BEHAVIOR THROUGH 7 PM CST.

WINDS ARE EXPECTED TO DIMINISH TO 10 TO 15 MPH AFTER 7 PM
AND TO 5 TO 10 MPH LATE TONIGHT.  RELATIVE HUMIDITIES WILL
SLOWLY RECOVER TONIGHT.

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.

$$

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 23, 3:24 PM CSTWind AdvisoryEWXAtascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 27 more27 hr

Nearby

Red Flag Warnings in Texas, 2007Every red flag warning in 2007

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.