Alert archive / Texas / Red Flag Warnings in 2009

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

April 3, 2009Kinney County, Maverick County, Val Verde County, Texas

NWS Austin/San Antonio, TX issued this red flag warning at Apr 3, 2009, 3:28 PM CDT for Kinney County, Maverick County, Val Verde County, Texas. It was in force for 5 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
Apr 3, 2009, 3:28 PM CDT (20:28 UTC)
Expired
Apr 3, 2009, 8:00 PM CDT
In force
5 hr
Issued by
NWS Austin/San Antonio, TX

Counties Kinney County, TX, Maverick County, TX, Val Verde County, TX

The radar

The Laughlin AFB radar (KDFX), 34 km from the middle of the area, began a volume at 20:31 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, 8.5 hours before the alert went out and 21 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 2009-04-03Temperature 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 2009-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 315 square meters per square second.1939587897117Sfc1 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
2950 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
315 m²/s²
0-3 km storm-relative helicity
463 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 032028
RFWEWX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
328 PM CDT FRI APR 3 2009

...RED FLAG WARNING IN EFFECT UNTIL 8 PM CDT THIS EVENING ALONG
THE RIO GRANDE VALLEY...
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY EVENING ACROSS MUCH OF SOUTH CENTRAL TEXAS...

.DRY AIR REMAINS ALONG THE RIO GRANDE VALLEY THIS AFTERNOON WITH
SOUTHERLY WINDS OF 20 TO 25 MPH. RED FLAG CONDITIONS WILL PERSIST
INTO THIS EVENING BEFORE RELATIVE HUMIDITIES RECOVER AND WINDS
DECREASE. A STRONG COLD FRONT WILL MOVE ACROSS SOUTH CENTRAL TEXAS
EARLY SUNDAY. NORTHERLY WINDS OF 15 TO 25 MPH WITH HIGHER GUSTS
ALONG WITH RELATIVE HUMIDITIES FALLING INTO THE TEENS WILL CREATE
POTENTIAL RED FLAG CONDITIONS ACROSS MUCH OF SOUTH CENTRAL TEXAS.
OTHERWISE...ELEVATED FIRE WEATHER CONDITIONS ARE POSSIBLE ACROSS
PARTS OF SOUTH CENTRAL TEXAS THROUGH THE NEXT SEVERAL DAYS.

TXZ183-202-217-040200-
/O.NEW.KEWX.FW.W.0013.090403T2028Z-090404T0100Z/
/O.NEW.KEWX.FW.A.0008.090405T1200Z-090406T0300Z/
VAL VERDE-KINNEY-MAVERICK-
328 PM CDT FRI APR 3 2009

...RED FLAG WARNING IN EFFECT UNTIL 8 PM CDT THIS EVENING...
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY EVENING...

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 8 PM CDT THIS
EVENING. A FIRE WEATHER WATCH HAS ALSO BEEN ISSUED. THIS FIRE
WEATHER WATCH IS IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING. 

DRY AIR REMAINS ALONG THE RIO GRANDE VALLEY THIS AFTERNOON WITH
SOUTHERLY WINDS OF 20 TO 25 MPH. RED FLAG CONDITIONS WILL PERSIST
INTO THIS EVENING BEFORE RELATIVE HUMIDITIES RECOVER AND WINDS
DECREASE. A STRONG COLD FRONT WILL MOVE ACROSS SOUTH CENTRAL TEXAS
EARLY SUNDAY. NORTHERLY WINDS OF 15 TO 25 MPH WITH HIGHER GUSTS
ALONG WITH RELATIVE HUMIDITIES FALLING INTO THE TEENS WILL CREATE
POTENTIAL RED FLAG CONDITIONS.

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.

&&

$$

TXZ171-172-184>190-203>207-218>225-228-040200-
/O.NEW.KEWX.FW.A.0008.090405T1200Z-090406T0300Z/
LLANO-BURNET-EDWARDS-REAL-KERR-BANDERA-GILLESPIE-KENDALL-BLANCO-
UVALDE-MEDINA-BEXAR-COMAL-GUADALUPE-ZAVALA-FRIO-ATASCOSA-WILSON-
KARNES-GONZALES-DE WITT-LAVACA-DIMMIT-
328 PM CDT FRI APR 3 2009

...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY EVENING...

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM SUNDAY MORNING
THROUGH SUNDAY EVENING. 

A STRONG COLD FRONT WILL MOVE ACROSS SOUTH CENTRAL TEXAS EARLY
SUNDAY. NORTHERLY WINDS OF 15 TO 25 MPH WITH HIGHER GUSTS ALONG
WITH RELATIVE HUMIDITIES FALLING INTO THE TEENS WILL CREATE
POTENTIAL RED FLAG CONDITIONS.

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.

&&

$$
1 follow-up statement
000 
WWUS84 KEWX 040103 AAA
RFWEWX

URGENT - FIRE WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
803 PM CDT FRI APR 3 2009

...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING ACROSS MUCH OF SOUTH CENTRAL TEXAS...

.A STRONG COLD FRONT WILL MOVE ACROSS SOUTH CENTRAL TEXAS EARLY
SUNDAY. NORTHERLY WINDS OF 15 TO 25 MPH WITH HIGHER GUSTS ALONG
WITH RELATIVE HUMIDITIES FALLING INTO THE TEENS WILL CREATE
POTENTIAL RED FLAG CONDITIONS ACROSS MUCH OF SOUTH CENTRAL TEXAS.
OTHERWISE...ELEVATED FIRE WEATHER CONDITIONS ARE POSSIBLE ACROSS
PARTS OF SOUTH CENTRAL TEXAS THROUGH THE NEXT SEVERAL DAYS.

TXZ183-202-217-041200-
/O.EXP.KEWX.FW.W.0013.000000T0000Z-090404T0100Z/
/O.CON.KEWX.FW.A.0008.090405T1200Z-090406T0300Z/
VAL VERDE-KINNEY-MAVERICK-
803 PM CDT FRI APR 3 2009

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH SUNDAY EVENING...
...RED FLAG WARNING HAS EXPIRED...

A STRONG COLD FRONT WILL MOVE ACROSS SOUTH CENTRAL TEXAS EARLY
SUNDAY. NORTHERLY WINDS OF 15 TO 25 MPH WITH HIGHER GUSTS ALONG
WITH RELATIVE HUMIDITIES FALLING INTO THE TEENS WILL CREATE
POTENTIAL RED FLAG CONDITIONS.

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.

&&

$$

TXZ171-172-184>190-203>207-218>225-228-041200-
/O.CON.KEWX.FW.A.0008.090405T1200Z-090406T0300Z/
LLANO-BURNET-EDWARDS-REAL-KERR-BANDERA-GILLESPIE-KENDALL-BLANCO-
UVALDE-MEDINA-BEXAR-COMAL-GUADALUPE-ZAVALA-FRIO-ATASCOSA-WILSON-
KARNES-GONZALES-DE WITT-LAVACA-DIMMIT-
803 PM CDT FRI APR 3 2009

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH SUNDAY EVENING...

A STRONG COLD FRONT WILL MOVE ACROSS SOUTH CENTRAL TEXAS EARLY
SUNDAY. NORTHERLY WINDS OF 15 TO 25 MPH WITH HIGHER GUSTS ALONG
WITH RELATIVE HUMIDITIES FALLING INTO THE TEENS WILL CREATE
POTENTIAL RED FLAG CONDITIONS.

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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 3, 3:28 PM CDTFire Weather WatchEWXAtascosa, Bandera, Bexar, Blanco, Burnet, Comal and 20 more12 hr

Nearby

Red Flag Warnings in Texas, 2009Every red flag warning in 2009

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.