Alert archive / Texas / Red Flag Warnings in 2007

Red Flag Warning 13, NWS Austin/San Antonio, TX

October 24, 200733 counties in Texas

NWS Austin/San Antonio, TX issued this red flag warning at Oct 24, 2007, 4:22 AM CDT for 33 counties in Texas. It took effect at Oct 24, 2007, 12:00 PM CDT. It was in force for 6 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
Oct 24, 2007, 4:22 AM CDT (09:22 UTC)
In effect from
Oct 24, 2007, 12:00 PM CDT
Expired
Oct 24, 2007, 6:00 PM CDT
In force
6 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 09:28 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 00:00Z, 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.

Skew-T log-pSkew-T log-p diagram, Del Rio, TX at 00:00Z on 2007-10-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2007-10-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
4374 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
114 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 240922
RFWEWX

RED FLAG WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
422 AM CDT WED OCT 24 2007

...A RED FLAG WARNING IS IN EFFECT FOR ALL OF SOUTH CENTRAL TEXAS
AND THE HILL COUNTRY FROM NOON TO 6 PM TODAY...

.NORTH AND NORTHWEST 20 FOOT WINDS OF 15 TO 20 MPH WITH GUSTS OF
20 TO 25 MPH IS EXPECTED THIS AFTERNOON. RELATIVE HUMIDITIES THIS
AFTERNOON WILL FALL TO BETWEEN 20 AND 25 PERCENT.

TXZ171>173-183>194-202>209-217>225-228-242030-
/O.NEW.KEWX.FW.W.0013.071024T1700Z-071024T2300Z/
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-
422 AM CDT WED OCT 24 2007

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM CDT THIS
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 6 PM CDT
THIS AFTERNOON. 

NORTH AND NORTHWESTERLY 20 FOOT WINDS OF 15 TO 20 MPH WITH GUSTS
OF 20 TO 25 MPH IS EXPECTED THIS AFTERNOON. RELATIVE HUMIDITIES
THIS AFTERNOON WILL FALL TO 20 TO 25 PERCENT.  THESE CONDITIONS
ARE CONDUCIVE TO THE SPREAD OF WILDFIRES.

WIND SPEED WILL RAPIDLY DECREASE EARLY THIS EVENING 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.

$$
1 follow-up statement
000 
WWUS84 KEWX 242024
RFWEWX

RED FLAG WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
324 PM CDT WED OCT 24 2007

...A RED FLAG WARNING IS IN EFFECT FOR ALL OF SOUTH CENTRAL TEXAS
AND THE HILL COUNTRY UNTIL 6 PM CDT THIS AFTERNOON...

.NORTH AND NORTHWEST 20 FOOT WINDS OF 15 TO 20 MPH WITH GUSTS OF
20 TO 30 MPH WILL PERSIST INTO LATE THIS AFTERNOON. RELATIVE
HUMIDITIES WILL REMAIN BETWEEN 20 AND 25 PERCENT INTO LATE THIS
AFTERNOON. 

TXZ171>173-183>194-202>209-217>225-228-242300-
/O.CON.KEWX.FW.W.0013.000000T0000Z-071024T2300Z/
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-
324 PM CDT WED OCT 24 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS
AFTERNOON...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS
AFTERNOON. 

NORTH AND NORTHWEST 20 FOOT WINDS OF 15 TO 20 MPH WITH GUSTS OF
20 TO 30 MPH WILL PERSIST UNTIL LATE THIS AFTERNOON. RELATIVE
HUMIDITIES WILL REMAIN BETWEEN 20 TO 25 PERCENT INTO LATE THIS
AFTERNOON. THESE CONDITIONS ARE CONDUCIVE TO THE SPREAD OF
WILDFIRES.

WIND SPEEDS WILL RAPIDLY DECREASE AND RELATIVE HUMIDITIES WILL
SLOWLY RECOVER EARLY THIS EVENING.

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.

$$

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.