Alert archive / Texas / Red Flag Warnings in 2013

Red Flag Warning 9, NWS Austin/San Antonio, TX

March 10, 201310 counties in Texas

NWS Austin/San Antonio, TX issued this red flag warning at Mar 10, 2013, 4:46 AM CDT for 10 counties in Texas. It took effect at Mar 10, 2013, 9:00 AM CDT. It was in force for 11 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 10, 2013, 4:46 AM CDT (09:46 UTC)
In effect from
Mar 10, 2013, 9:00 AM CDT
Expired
Mar 10, 2013, 8:19 PM CDT
In force
11 hr
Issued by
NWS Austin/San Antonio, TX

Counties Atascosa County, TX, Dimmit County, TX, Edwards County, TX, Frio County, TX, Kinney County, TX, Maverick County, TX, Medina County, TX, Uvalde County, TX, Val Verde County, TX, Zavala County, TX

The radar

The Laughlin AFB radar (KDFX), 46 km from the middle of the area, began a volume at 09:49 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, 9.8 hours before the alert went out and 101 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 2013-03-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 450 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 00:00Z on 2013-03-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 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
450 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
3080 m above ground
0-6 km bulk shear
86 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
178 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.6

Open this sounding in Storm Lab

The text

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

103 
WWUS84 KEWX 100946
RFWEWX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
446 AM CDT SUN MAR 10 2013

...A RED FLAG WARNING IS IN EFFECT TODAY INTO THIS EVENING ACROSS
THE RIO GRANDE PLAINS AND SOUTHERN EDWARDS PLATEAU FOR STRONG
WINDS AND DRY CONDITIONS BEHIND A COLD FRONT...

.A COLD FRONT IN THE WAKE OF DEPARTING STORM SYSTEM WILL PRODUCE 
STRONG NORTHWEST WINDS OF 15 TO 25 MPH AND LOW RELATIVE HUMIDITIES
TODAY ACROSS WESTERN PORTIONS OF SOUTH CENTRAL TEXAS. ALTHOUGH A 
FEW AREAS RECEIVED A WETTING RAIN OVERNIGHT...MANY AREAS ALONG AND 
SOUTHWEST OF A ROCKSPRINGS TO UVALDE TO CAMPBELLTON LINE RECEIVED
LITTLE OR NO RAINFALL. THE BREEZY AND DRY CONDITIONS ARE EXPECTED
TO CONTINUE INTO THE EARLY EVENING...WITH LIGHTER WINDS EXPECTED 
LATE TONIGHT. SOME BREEZY AND DRY CONDITIONS MAY DEVELOP FOR A FEW
HOURS MONDAY BEFORE THE STRONGER WINDS CONCENTRATE FARTHER TO THE 
EAST.

TXZ183-184-202>204-217>220-228-110200-
/O.NEW.KEWX.FW.W.0009.130310T1400Z-130311T0200Z/
VAL VERDE-EDWARDS-KINNEY-UVALDE-MEDINA-MAVERICK-ZAVALA-FRIO-
ATASCOSA-DIMMIT-
446 AM CDT SUN MAR 10 2013

...RED FLAG WARNING IN EFFECT FROM 9 AM THIS MORNING TO 9 PM CDT
THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITIES ACROSS
THE SOUTHERN EDWARDS PLATEAU AND THE RIO GRANDE PLAINS...

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
RED FLAG WARNING...WHICH IS IN EFFECT FROM 9 AM THIS MORNING TO
9 PM CDT THIS EVENING. 

* AFFECTED AREA...THE FOLLOWING SOUTH CENTRAL TEXAS COUNTIES... 
  VAL VERDE...EDWARDS...KINNEY...UVALDE...MEDINA...MAVERICK... 
  ZAVALA...FRIO...ATASCOSA...DIMMIT. 

* 20-FOOT WIND...15 TO 25 MPH

* HUMIDITY...12 TO 20 PERCENT.

* THUNDERSTORMS...NONE.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY.  AVOID THE USE OF
OPEN FLAMES OR ANY ACTIVITIES THAT MAY GENERATE SPARKS. 
ACCIDENTAL IGNITIONS WILL HAVE THE POTENTIAL TO GROW QUICKLY INTO
DANGEROUS WIND DRIVEN WILDFIRES.

&&

$$


FOR INFORMATION ON BURN BANS PLEASE VISIT THE TEXAS INTERAGENCY
COORDINATION CENTER WEBSITE AT: TICC.TAMU.EDU
1 follow-up statement
132 
WWUS84 KEWX 110119
RFWEWX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
819 PM CDT SUN MAR 10 2013

...RED FLAG WARNING IS CANCELLED...

.RELATIVE HUMIDITIES REMAIN IN THE TEENS TO LOWER 20S ACROSS THE 
AREA. HOWEVER...20-FOOT WINDS HAVE DECREASED TO LESS THAN 15 MPH.
ELEVATED FIRE WEATHER CONDITIONS WILL PERSIST THIS EVENING AS
RELATIVE HUMIDITIES WILL BE SLOW TO RECOVER. ELEVATED FIRE WEATHER
CONDITIONS CAN BE EXPECTED MONDAY THROUGH WEDNESDAY DURING THE
AFTERNOON HOURS. RELATIVE HUMIDITIES WILL FALL INTO THE TEENS WITH
WINDS OF LESS THAN 15 MPH.

TXZ183-184-202>204-217>220-228-110230-
/O.CAN.KEWX.FW.W.0009.000000T0000Z-130311T0200Z/
VAL VERDE-EDWARDS-KINNEY-UVALDE-MEDINA-MAVERICK-ZAVALA-FRIO-
ATASCOSA-DIMMIT-
819 PM CDT SUN MAR 10 2013

...RED FLAG WARNING IS CANCELLED FOR STRONG WINDS AND LOW
RELATIVE HUMIDITIES ACROSS THE EDWARDS PLATEAU AND RIO GRANDE 
PLAINS...

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS CANCELLED
THE RED FLAG WARNING. 

RELATIVE HUMIDITIES REMAIN IN THE TEENS TO LOWER 20S ACROSS THE 
AREA. HOWEVER...WINDS HAVE DECREASED TO LESS THAN 15 MPH. ELEVATED
FIRE WEATHER CONDITIONS WILL PERSIST THIS EVENING AS RELATIVE
HUMIDITIES WILL BE SLOW TO RECOVER. ELEVATED FIRE WEATHER
CONDITIONS CAN BE EXPECTED MONDAY THROUGH WEDNESDAY DURING THE
AFTERNOON HOURS. RELATIVE HUMIDITIES WILL FALL INTO THE TEENS WITH
WINDS OF LESS THAN 15 MPH.

$$


FOR INFORMATION ON BURN BANS PLEASE VISIT THE TEXAS INTERAGENCY
COORDINATION CENTER WEBSITE AT: TICC.TAMU.EDU

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 9, 6:57 PM CSTSpecial Weather StatementEWXGillespie48 min
Mar 9, 7:07 PM CSTSevere Thunderstorm WarningEWXGillespie, Kerr38 min
Mar 9, 8:04 PM CSTSpecial Weather StatementEWXBlanco41 min
Mar 9, 9:02 PM CSTSevere Thunderstorm WarningEWXGillespie43 min
Mar 9, 9:03 PM CSTSpecial Weather StatementEWXEdwards27 min
Mar 9, 9:10 PM CSTSevere Thunderstorm WarningEWXEdwards, Kerr50 min
Mar 9, 9:34 PM CSTSpecial Weather StatementEWXEdwards41 min
Mar 9, 9:36 PM CSTSevere Thunderstorm WarningEWXEdwards, Real54 min
Mar 9, 9:44 PM CSTSpecial Weather StatementEWXKinney31 min
Mar 9, 9:56 PM CSTSevere Thunderstorm WarningEWXEdwards, Kerr, Real49 min
Mar 9, 10:03 PM CSTSpecial Weather StatementEWXBurnet, Gillespie, Llano42 min
Mar 9, 10:05 PM CSTSevere Thunderstorm WarningEWXKinney, Uvalde40 min
Mar 9, 10:34 PM CSTSevere Thunderstorm WarningEWXKinney, Uvalde, Zavala41 min
Mar 9, 10:42 PM CSTSpecial Weather StatementEWXBandera48 min
Mar 9, 10:52 PM CSTSpecial Weather StatementEWXBandera, Blanco, Burnet, Gillespie, Kendall, Williamson38 min
Mar 9, 11:30 PM CSTSpecial Weather StatementEWXKinney45 min
Mar 9, 11:40 PM CSTSevere Thunderstorm WarningEWXKinney, Uvalde50 min
Mar 9, 11:42 PM CSTSevere Thunderstorm WarningEWXMedina, Uvalde48 min
Mar 9, 11:46 PM CSTSpecial Weather StatementEWXBandera44 min
Mar 9, 11:59 PM CSTSevere Thunderstorm WarningEWXBandera, Medina46 min
Mar 10, 12:25 AM CSTSpecial Weather StatementEWXBandera50 min
Mar 10, 12:31 AM CSTSevere Thunderstorm WarningEWXBexar44 min
Mar 10, 1:01 AM CSTSpecial Weather StatementEWXComal29 min
Mar 10, 1:14 AM CSTSevere Thunderstorm WarningEWXBexar, Caldwell, Comal, Guadalupe, Hays46 min
Mar 10, 1:48 AM CSTSevere Thunderstorm WarningEWXCaldwell, Gonzales, Guadalupe27 min
Mar 10, 4:43 AM CDTSpecial Weather StatementEWXLee47 min

Nearby

Red Flag Warnings in Texas, 2013Every red flag warning in 2013

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.