Alert archive / Texas / Red Flag Warnings in 2008

Red Flag Warning 3, NWS Austin/San Antonio, TX

January 11, 200817 counties in Texas

NWS Austin/San Antonio, TX issued this red flag warning at Jan 11, 2008, 9:53 PM CST for 17 counties in Texas. It took effect at Jan 12, 2008, 4:12 AM CST. It was in force for 16 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
Jan 11, 2008, 9:53 PM CST (03:53 UTC)
In effect from
Jan 12, 2008, 4:12 AM CST
Expired
Jan 12, 2008, 8:00 PM CST
In force
16 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 03:55 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, 3.9 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.

Skew-T log-pSkew-T log-p diagram, Del Rio, TX at 00:00Z on 2008-01-12Temperature 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 2008-01-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 99 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3386 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
99 m²/s²
0-3 km storm-relative helicity
104 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 120353
RFWEWX

RED FLAG WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
953 PM CST FRI JAN 11 2008

...RED FLAG WARNING IN EFFECT FROM 12 PM TO 5 PM CST SATURDAY...

.A RED FLAG WARNING IS NOW IN EFFECT FOR THE RIO GRANDE VALLEY AND
NEARBY PLAINS FOR SATURDAY AFTERNOON. THIS GENERALLY ALONG AND
SOUTHWEST OF A JUNO TO BRACKETTVILLE TO UVALDE TO CATARINA LINE. 
ANOTHER COLD FRONT WILL MOVE THROUGH THE AREA ON SATURDAY.
RELATIVE HUMIDITIES WILL FALL TO 10 TO 15 PERCENT WHILE 20 FOOT
WINDS INCREASE TO 15 TO 20 MPH AND GUSTY. ELSEWHERE ACROSS SOUTH
CENTRAL TEXAS...CRITICAL FIRE WEATHER CONDITIONS MAY BE
APPROACHED.

TXZ183-202-203-217-218-228-121200-
/O.NEW.KEWX.FW.W.0003.080112T1800Z-080112T2300Z/
VAL VERDE-KINNEY-UVALDE-MAVERICK-ZAVALA-DIMMIT-
953 PM CST FRI JAN 11 2008

...RED FLAG WARNING IN EFFECT FROM 12 PM TO 5 PM CST SATURDAY...

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
RED FLAG WARNING...WHICH IS IN EFFECT FROM 12 PM TO 5 PM CST
SATURDAY. 

ANOTHER COLD FRONT WILL MOVE THROUGH THE AREA. EXPECT RELATIVE
HUMIDITIES TO FALL TO 10 TO 15 PERCENT WHILE 20 FOOT WINDS
INCREASE TO 15 TO 20 MPH AND GUSTY DURING THE AFTERNOON HOURS.
WINDS RAPIDLY DECREASE TOWARD SUNSET 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 121012
RFWEWX

RED FLAG WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
412 AM CST SAT JAN 12 2008

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM CST THIS EVENING
FOR WESTERN PORTIONS OF SOUTH CENTRAL TEXAS DUE TO VERY LOW
RELATIVE HUMIDITIES AND WESTERLY WINDS UP TO 20 MPH...

.A RED FLAG WARNING IS NOW IN EFFECT FOR THE RIO GRANDE VALLEY
...NEARBY PLAINS AND THE HILL COUNTRY. THIS AREA IS GENERALLY
ALONG AND WEST OF A BURNET TO BOERNE TO PEARSALL LINE. WEST AND
NORTHWEST WINDS WILL MIX DOWN TO THE SURFACE AHEAD OF A COLD FRONT
TODAY. RELATIVE HUMIDITIES WILL FALL TO 10 TO 20 PERCENT WHILE 20
FOOT WINDS INCREASE TO 15 TO 20 MPH WITH HIGHER GUSTS. 

TXZ171-172-184>190-204-219-130200-
/O.EXB.KEWX.FW.W.0003.080112T1700Z-080113T0200Z/
LLANO-BURNET-EDWARDS-REAL-KERR-BANDERA-GILLESPIE-KENDALL-BLANCO-
MEDINA-FRIO-
412 AM CST SAT JAN 12 2008

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 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
8 PM CST THIS EVENING. 

WEST AND NORTHWEST WINDS WILL MIX DOWN TO THE SURFACE AHEAD OF A
COLD FRONT TODAY. RELATIVE HUMIDITIES WILL FALL TO 10 TO 20
PERCENT WHILE 20 FOOT WINDS INCREASE TO 15 TO 20 MPH WITH HIGHER
GUSTS. WINDS WILL DECREASE AFTER SUNSET AND RELATIVE HUMIDITIES 
WILL GRADUALLY 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.

$$

TXZ183-202-203-217-218-228-130200-
/O.EXT.KEWX.FW.W.0003.080112T1700Z-080113T0200Z/
VAL VERDE-KINNEY-UVALDE-MAVERICK-ZAVALA-DIMMIT-
412 AM CST SAT JAN 12 2008

...RED FLAG WARNING NOW IN EFFECT FROM 11 AM THIS MORNING TO 8 PM
CST THIS EVENING...

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS EXTENDED
THE RED FLAG WARNING...WHICH IS NOW IN EFFECT FROM 11 AM THIS
MORNING TO 8 PM CST THIS EVENING.

WEST AND NORTHWEST WINDS WILL MIX DOWN TO THE SURFACE AHEAD OF A
COLD FRONT TODAY. RELATIVE HUMIDITIES WILL FALL TO 10 TO 20
PERCENT WHILE 20 FOOT WINDS INCREASE TO 15 TO 20 MPH WITH HIGHER
GUSTS. WINDS WILL DECREASE AFTER SUNSET AND RELATIVE HUMIDITIES 
WILL GRADUALLY 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.

$$

Nearby

Red Flag Warnings in Texas, 2008Every red flag warning in 2008

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.