Alert archive / Texas / Red Flag Warnings in 2025

Red Flag Warning 2, NWS Austin/San Antonio, TX

March 7, 202525 counties in Texas

NWS Austin/San Antonio, TX issued this red flag warning at Mar 7, 2025, 1:35 PM CST for 25 counties in Texas. It took effect at Mar 8, 2025, 12:00 PM 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 7, 2025, 1:35 PM CST (19:35 UTC)
In effect from
Mar 8, 2025, 12:00 PM CST
Expired
Mar 8, 2025, 8:00 PM CST
In force
8 hr
Issued by
NWS Austin/San Antonio, TX
All 25 counties

Atascosa County, TX, Bandera County, TX, Bexar County, TX, Blanco County, TX, Caldwell County, TX, Comal County, TX, DeWitt County, TX, Dimmit County, TX, Edwards 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, Maverick County, TX, Medina County, TX, Real County, TX, Uvalde County, TX, Val Verde County, TX, Wilson County, TX, Zavala County, TX

The radar

The Austin/San Antonio radar (KEWX), 93 km from the middle of the area, began a volume at 19:40 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, 7.6 hours before the alert went out and 183 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 2025-03-07Temperature 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 12:00Z on 2025-03-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 101 square meters per square second.1939587897117136Sfc1 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
1255 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
101 m²/s²
0-3 km storm-relative helicity
71 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

897 
WWUS84 KEWX 071935
RFWEWX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Austin/San Antonio TX
135 PM CST Fri Mar 7 2025

...BREEZY AND DRY BEHIND A COLD FRONT SATURDAY WILL RESULT IN
CRITICAL FIRE WEATHER CONDITIONS...

.A cold front will move through South-Central Texas from west to 
east Saturday between midnight and noon. This boundary will bring 
much drier air and breezy northwesterly winds. Relative humidity 
will drop below 20% from the western Hill Country, southern I-35 
Corridor, and western Coastal Plains to the Rio Grande. Winds 
will be 15-25 mph with higher gusts up to 35 mph during the 
afternoon and early evening. This will result in the likelihood of
critical fire weather conditions. 

TXZ183>191-202>208-217>224-228-081100-
/O.UPG.KEWX.FW.A.0002.250308T1800Z-250309T0200Z/
/O.NEW.KEWX.FW.W.0002.250308T1800Z-250309T0200Z/
Val Verde-Edwards-Real-Kerr-Bandera-Gillespie-Kendall-Blanco-Hays-
Kinney-Uvalde-Medina-Bexar-Comal-Guadalupe-Caldwell-Maverick-
Zavala-Frio-Atascosa-Wilson-Karnes-Gonzales-De Witt-Dimmit-
135 PM CST Fri Mar 7 2025

...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM CST SATURDAY FOR
CRITICAL FIRE WEATHER CONDITIONS FOR WESTERN TWO THIRDS OF SOUTH
CENTRAL TEXAS...

The National Weather Service in Austin/San Antonio has issued a
Red Flag Warning for critical fire weather conditions, which is 
in effect from noon to 8 PM CST Saturday. The Fire Weather Watch 
is no longer in effect.

* AFFECTED AREAS...Western two thirds of South Central Texas

* TIMING...From noon to 8 PM CST Saturday.

* WINDS...Northwest 15 to 25 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...10-20 percent.

* IMPACTS...Any fires that develop may rapidly increase in size 
  and intensity, move quickly, and be very difficult to control.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$
1 follow-up statement
922 
WWUS84 KEWX 080827
RFWEWX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Austin/San Antonio TX
227 AM CST Sat Mar 8 2025

...BREEZY AND DRY BEHIND A COLD FRONT SATURDAY WILL RESULT IN
CRITICAL FIRE WEATHER CONDITIONS...

.A cold front will move through South-Central Texas from west to
east today between now and mid-afternoon. This boundary will 
bring much drier air and breezy northwesterly winds. Relative 
humidity will drop below 20% from the western Hill Country, 
southern I- 35 Corridor, and western Coastal Plains to the Rio 
Grande. Winds will be 15-25 mph with higher gusts up to 30 mph 
during the afternoon and early evening. This will result in the 
likelihood of critical fire weather conditions.

TXZ183>191-202>208-217>224-228-090200-
/O.CON.KEWX.FW.W.0002.250308T1800Z-250309T0200Z/
Val Verde-Edwards-Real-Kerr-Bandera-Gillespie-Kendall-Blanco-Hays-
Kinney-Uvalde-Medina-Bexar-Comal-Guadalupe-Caldwell-Maverick-
Zavala-Frio-Atascosa-Wilson-Karnes-Gonzales-De Witt-Dimmit-
227 AM CST Sat Mar 8 2025

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM CST
THIS EVENING FOR CRITICAL FIRE WEATHER CONDITIONS FOR WESTERN TWO
THIRDS OF SOUTH CENTRAL TEXAS...

* AFFECTED AREAS...Western two thirds of South Central Texas

* TIMING...From noon today to 8 PM CST this evening.

* WINDS...Northwest 15 to 25 mph with gusts up to 30 mph.

* RELATIVE HUMIDITY...As low as 13 percent.

* IMPACTS...Any fires that develop may rapidly increase in size 
  and intensity, move quickly, and be very difficult to control.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 7, 2:57 AM CSTFire Weather WatchEWXAtascosa, Bandera, Bexar, Blanco, Caldwell, Comal and 19 more11 hr

Nearby

Red Flag Warnings in Texas, 2025Every red flag warning in 2025

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.