Alert archive / Texas / Red Flag Warnings in 2006

Red Flag Warning 21, NWS Brownsville, TX

November 30, 20068 counties in Texas

NWS Brownsville, TX issued this red flag warning at Nov 30, 2006, 2:21 AM CST for 8 counties in Texas. It took effect at Nov 30, 2006, 8:34 AM CST. It was in force for 9 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
Nov 30, 2006, 2:21 AM CST (08:21 UTC)
In effect from
Nov 30, 2006, 8:34 AM CST
Expired
Nov 30, 2006, 6:00 PM CST
In force
9 hr
Issued by
NWS Brownsville, TX

Counties Brooks County, TX, Cameron County, TX, Hidalgo County, TX, Jim Hogg County, TX, Kenedy County, TX, Starr County, TX, Willacy County, TX, Zapata County, TX

The radar

The Brownsville radar (KBRO), 118 km from the middle of the area, began a volume at 08:27 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

Brownsville Intl, TX (KBRO), launched 00:00Z, 8.4 hours before the alert went out and 120 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, Brownsville Intl, TX at 00:00Z on 2006-11-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 216 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, Brownsville Intl, TX at 00:00Z on 2006-11-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 159 square meters per square second.19395878Sfc1 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
216 J/kg
Mixed-layer CIN
-108 J/kg
Mixed-layer LCL
734 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
159 m²/s²
0-3 km storm-relative helicity
183 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

000 
WWUS84 KBRO 300821
RFWBRO

RED FLAG WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
221 AM CST THU NOV 30 2006

...RED FLAG WARNING FROM NOON TO 6 PM CST FOR WESTERN DEEP SOUTH TEXAS
FOR STRONG WINDS AND LOW HUMIDITY...

.A STRONG COLD FRONT WILL MOVE ACROSS DEEP SOUTH TEXAS TODAY...
BRINGING STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY. THE MOST
CRITICAL FIRE WEATHER CONDITIONS WILL OCCUR ALONG AND BEHIND THE
FRONT. THOUGH TEMPERATURES WILL BE A BIT COOLER...WINDS AND
TEMPERATURES WILL BE NEAR CRITICAL VALUES THIS AFTERNOON. BY THIS
EVENING...THE FRONT WILL HAVE MOVED THROUGH DEEP SOUTH TEXAS...
ALLOWING WINDS TO DECREASE BELOW CRITICAL VALUES AND HUMIDITY TO
INCREASE.

TXZ250-251-253>257-300930-
/O.CAN.KBRO.FW.A.0009.061130T1800Z-061201T0600Z/
BROOKS-KENEDY-HIDALGO-INLAND WILLACY-INLAND CAMERON-
COASTAL WILLACY-COASTAL CAMERON-
221 AM CST THU NOV 30 2006

...FIRE WEATHER WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS CANCELLED THE
FIRE WEATHER WATCH. 

$$

TXZ248-249-252-010000-
/O.UPG.KBRO.FW.A.0009.061130T1800Z-061201T0600Z/
/O.NEW.KBRO.FW.W.0021.061130T1800Z-061201T0000Z/
ZAPATA-JIM HOGG-STARR-
221 AM CST THU NOV 30 2006

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

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A RED FLAG
WARNING FOR ZAPATA...JIM HOGG AND STARR COUNTIES...WHICH IS IN EFFECT
FROM NOON TODAY TO 6 PM CST THIS AFTERNOON. THE FIRE WEATHER WATCH
IS NO LONGER IN EFFECT.

A RED FLAG WARNING HAS BEEN ISSUED FOR STRONG NORTHWEST TO NORTH
WINDS AND LOW HUMIDITY FOR THIS AFTERNOON. A STRONG COLD FRONT
WILL MOVE ACROSS DEEP SOUTH TEXAS TODAY. SURFACE WINDS IN THE WAKE
OF THIS FRONT WILL BECOME NORTHWEST TO NORTH AT 20 TO 30 MPH...WITH
SOME HIGHER GUSTS. RELATIVE HUMIDITY VALUES WILL FALL TO BELOW 35
PERCENT ACROSS WESTERN SECTIONS BY THIS AFTERNOON. THIS
COMBINATION OF STRONG SURFACE WINDS AND DRY CONDITIONS WILL RESULT
IN CONDITIONS THAT ARE CONDUCIVE TO EXTREME FIRE BEHAVIOR.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY.

$$

54
1 follow-up statement
000 
WWUS84 KBRO 301434
RFWBRO

RED FLAG WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
834 AM CST THU NOV 30 2006

...RED FLAG WARNING IN EFFECT UNTIL 6 PM CST FOR DEEP SOUTH TEXAS
FOR STRONG WINDS AND LOW HUMIDITY...

.A STRONG COLD FRONT IS MOVING ACROSS DEEP SOUTH TEXAS TODAY...
BRINGING STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY. THE MOST
CRITICAL FIRE WEATHER CONDITIONS WILL OCCUR ALONG AND BEHIND THE
FRONT. THOUGH TEMPERATURES WILL BE COLDER...WINDS AND RELATIVE
HUMIDITY VALUES WILL BE NEAR CRITICAL VALUES THIS AFTERNOON. BY
THIS EVENING...THE FRONT WILL HAVE MOVED THROUGH DEEP SOUTH
TEXAS... ALLOWING WINDS TO DECREASE BELOW CRITICAL VALUES.

TXZ250-251-253>255-010000-
/O.EXB.KBRO.FW.W.0021.061130T1434Z-061201T0000Z/
BROOKS-KENEDY-HIDALGO-INLAND WILLACY-INLAND CAMERON-
834 AM CST THU NOV 30 2006

...RED FLAG WARNING IN EFFECT UNTIL 6 PM CST THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON. 

A RED FLAG WARNING HAS BEEN ISSUED FOR STRONG NORTHWEST TO NORTH
WINDS AND LOW HUMIDITY TODAY. A STRONG COLD FRONT IS MOVING ACROSS
DEEP SOUTH TEXAS TODAY. SURFACE WINDS IN THE WAKE OF THIS FRONT
WILL BECOME NORTHWEST TO NORTH AT 20 TO 30 MPH...WITH HIGHER
GUSTS. RELATIVE HUMIDITY VALUES WILL FALL BELOW 35 PERCENT QUICKLY.
THIS COMBINATION OF STRONG SURFACE WINDS AND DRY CONDITIONS WILL
RESULT IN CONDITIONS THAT ARE CONDUCIVE TO EXTREME FIRE BEHAVIOR.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY.

$$

TXZ248-249-252-010000-
/O.EXT.KBRO.FW.W.0021.061130T1434Z-061201T0000Z/
ZAPATA-JIM HOGG-STARR-
834 AM CST THU NOV 30 2006

...RED FLAG WARNING NOW IN EFFECT UNTIL 6 PM CST THIS AFTERNOON...

THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON. 

A RED FLAG WARNING HAS BEEN ISSUED FOR STRONG NORTHWEST TO NORTH
WINDS AND LOW HUMIDITY FOR THIS AFTERNOON. A STRONG COLD FRONT
IS MOVING ACROSS DEEP SOUTH TEXAS TODAY. SURFACE WINDS IN THE WAKE
OF THIS FRONT WILL BECOME NORTHWEST TO NORTH AT 20 TO 30
MPH...WITH HIGHER GUSTS. RELATIVE HUMIDITY VALUES WILL FALL TO
BELOW 35 PERCENT BY THIS AFTERNOON. THIS COMBINATION OF STRONG
SURFACE WINDS AND DRY CONDITIONS WILL RESULT IN CONDITIONS THAT
ARE CONDUCIVE TO EXTREME FIRE BEHAVIOR.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY.

$$

The office that day

Everything else NWS Brownsville, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 30, 3:58 AM CSTMarine Weather StatementBRO8 hr
Nov 30, 8:04 AM CSTWind AdvisoryBROBrooks, Cameron, Hidalgo, Jim Hogg, Kenedy, Starr and 2 more12 hr

Nearby

Red Flag Warnings in Texas, 2006Every red flag warning in 2006

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.