Alert archive / Texas / Red Flag Warnings in 2020

Red Flag Warning 2, NWS Brownsville, TX

February 25, 20208 counties in Texas

NWS Brownsville, TX issued this red flag warning at Feb 25, 2020, 3:18 PM CST for 8 counties in Texas. It took effect at Feb 26, 2020, 9:00 AM CST. It was in force for 10 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
Feb 25, 2020, 3:18 PM CST (21:18 UTC)
In effect from
Feb 26, 2020, 9:00 AM CST
Expired
Feb 26, 2020, 7:00 PM CST
In force
10 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 21:21 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 12:00Z, 9.3 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 12:00Z on 2020-02-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 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 12:00Z on 2020-02-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -56 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
6 J/kg
Mixed-layer CIN
-368 J/kg
Mixed-layer LCL
1422 m above ground
0-6 km bulk shear
75 kt
0-1 km storm-relative helicity
-56 m²/s²
0-3 km storm-relative helicity
-136 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted.

074 
WWUS84 KBRO 252118
RFWBRO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Brownsville TX
318 PM CST Tue Feb 25 2020

...Elevated to Locally Critical Fire Weather Conditions
Wednesday...

.A strong cold front moves through Deep South Texas tonight
ushering and very dry and windy conditoins. Significantly lowering 
relative humidity and strong gusty winds combine with very dry
fuels and moderate to severe drought raising the fire weather 
threat into the elevated to critical levels. 

TXZ248>257-351-353-261100-
/O.UPG.KBRO.FW.A.0003.200226T1500Z-200226T2300Z/
/O.NEW.KBRO.FW.W.0002.200226T1500Z-200226T2300Z/
Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo-
Inland Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron-
Coastal Kenedy-Northern Hidalgo-
318 PM CST Tue Feb 25 2020

...RED FLAG WARNING IN EFFECT FROM 9 AM TO 5 PM CST WEDNESDAY FOR
LOW RELATIVE HUMIDITY AND STRONG WINDS FOR FIRE WEATHER ZONES 
248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 351, AND 353...

The National Weather Service in Brownsville has issued a Red Flag
Warning, which is in effect from 9 AM to 5 PM CST Wednesday. The
Fire Weather Watch is no longer in effect. 


* WIND...20 foot wind Northwest to north 15 to 25 mph gusts up to
  40 mph. 

* HUMIDITY...15 to 18 percent west of I 69E and 18 to 30 percent
  along and east of I 69E.

* HIGHEST THREAT...location is between Interstate highway I 69C 
  and I 69 E.

* IMPACTS...any fires that develop will likely spread grow rapidly.
  Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means critical fire weather conditions are
occurring now...or will shortly. In general...these conditions
include sustained 20 foot winds of 25 MPH or greater...humidity
ranging from below 25 percent in Zapata County to below
45 percent along the coast...each lasting for 2 hours or longer...
and cured fuels. Humidity below 25 percent in most areas will
trigger fire danger at lower wind speeds. 

Detailed decision tables are found at 
HTTP://WEATHER.GOV/RGV/?N=MAPCOLORS#FIRE. Listen for later 
forecasts and possible Red Flag Warnings.

&&

$$
5 follow-up statements
922 
WWUS84 KBRO 252140 AAA
RFWBRO

URGENT - FIRE WEATHER MESSAGE...UPDATED
National Weather Service Brownsville TX
340 PM CST Tue Feb 25 2020

...Elevated to Locally Critical Fire Weather Conditions
Wednesday...

.A strong cold front will move through Deep South Texas tonight 
ushering in very dry and windy conditions. Significantly lowering
relative humidity and strong gusty winds will combine with very 
dry fuels and moderate to severe drought raising the fire weather 
threat into the elevated to critical levels.

TXZ248>257-351-353-261100-
/O.CON.KBRO.FW.W.0002.200226T1500Z-200226T2300Z/
Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo-
Inland Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron-
Coastal Kenedy-Northern Hidalgo-
340 PM CST Tue Feb 25 2020

...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM TO 5 PM CST
WEDNESDAY FOR LOW RELATIVE HUMIDITY AND STRONG WINDS FOR FIRE
WEATHER ZONES 248, 249, 250, 251, 252, 253, 254, 255, 256, 257,
351, AND 353...

* WIND...20 foot wind Northwest to north 15 to 25 mph with gusts 
  up to 40 mph. 

* HUMIDITY...15 to 18 percent west of I 69E and 18 to 30 
  percent along and east of I 69E. 

* HIGHEST THREAT...between Interstate highway I 69C and I 69E.

* IMPACTS...any fires that develop will likely grow and spread
  rapidly. Outdoor burning is not recommended. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means critical fire weather conditions are
occurring now...or will shortly. In general...these conditions
include sustained 20 foot winds of 25 MPH or greater...humidity
ranging from below 25 percent in Zapata County to below
45 percent along the coast...each lasting for 2 hours or longer...
 and cured fuels. Humidity below 25 percent in most areas will
trigger fire danger at lower wind speeds.

Detailed decision tables are found at
HTTP://WEATHER.GOV/RGV/?N=MAPCOLORS#FIRE. Listen for later
forecasts and possible Red Flag Warnings.

&&

$$
455 
WWUS84 KBRO 261025
RFWBRO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Brownsville TX
425 AM CST Wed Feb 26 2020

...Elevated to Locally Critical Fire Weather Conditions
Expected Today...

.A strong cold front moved through Deep South Texas last night 
ushering in very dry and windy conditions. Significantly lower 
relative humidity and strong gusty winds will combine with very 
dry fuels and moderate to severe drought conditions raising the 
fire weather threat into the elevated to critical levels.

TXZ248>257-351-353-261830-
/O.CON.KBRO.FW.W.0002.200226T1500Z-200226T2300Z/
Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo-
Inland Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron-
Coastal Kenedy-Northern Hidalgo-
425 AM CST Wed Feb 26 2020

...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO
5 PM CST THIS AFTERNOON FOR LOW RELATIVE HUMIDITY AND STRONG
WINDS FOR FIRE WEATHER ZONES 248, 249, 250, 251, 252, 253, 254,
255, 256, 257, 351, AND 353...

* WIND...20 foot wind Northwest to north 15 to 25 mph with gusts
  up to 30 to 35 mph. 

* HUMIDITY...15 to 18 percent west of Interstate 69E and 20 to 30
  percent along and east of Interstate 69E.

* HIGHEST THREAT...East of Interstate 69C.

* IMPACTS...Any fires that develop will likely grow and spread 
  rapidly. Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means critical fire weather conditions are
occurring now...or will shortly. In general...these conditions
include sustained 20 foot winds of 25 MPH or greater...humidity
ranging from below 25 percent in Zapata County to below
45 percent along the coast...each lasting for 2 hours or longer...
  and cured fuels. Humidity below 25 percent in most areas will
trigger fire danger at lower wind speeds.

Detailed decision tables are found at
HTTP://WEATHER.GOV/RGV/?N=MAPCOLORS#FIRE. Listen for later
forecasts and possible Red Flag Warnings.

&&

$$
794 
WWUS84 KBRO 261816
RFWBRO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Brownsville TX
1216 PM CST Wed Feb 26 2020

...Elevated to Locally Critical Fire Weather Conditions Continue
Rest of Afternoon...

.Strong and gusty and low relative humidity continue this
afternoon with Red Flag conditions occurring. Winds to slowly
diminish west to east however frequent gusty periods are expected.
Winds quickly diminish this evening with a slow recovery of
relative humidity. 


TXZ248>257-351-353-262300-
/O.CON.KBRO.FW.W.0002.000000T0000Z-200226T2300Z/
Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo-
Inland Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron-
Coastal Kenedy-Northern Hidalgo-
1216 PM CST Wed Feb 26 2020

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM CST THIS
AFTERNOON FOR winds and low relative humidity FOR FIRE WEATHER 
ZONES 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 351, AND 
353...

* WIND...20 foot wind Northwest to north 15 to 25 mph with gusts 
  up to 30 to 35 mph. 

* HUMIDITY...15 to 25 percent. 

* HIGHEST THREAT...East of Interstate 69C.

* IMPACTS...Any fires that develop will likely grow and spread 
  rapidly. Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means critical fire weather conditions are
occurring now...or will shortly. In general...these conditions
include sustained 20 foot winds of 25 MPH or greater...humidity
ranging from below 25 percent in Zapata County to below
45 percent along the coast...each lasting for 2 hours or longer...
and cured fuels. Humidity below 25 percent in most areas will 
trigger fire danger at lower wind speeds.

Detailed decision tables are found at
HTTP://WEATHER.GOV/RGV/?N=MAPCOLORS#FIRE. Listen for later
forecasts and possible Red Flag Warnings.

&&

$$
650 
WWUS84 KBRO 262225
RFWBRO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Brownsville TX
425 PM CST Wed Feb 26 2020

...Elevated to Locally Critical Fire Weather Conditions Continue
Through Sunset...

.Breezy, gusty northerly winds and low relative humidity continue
this afternoon with Red Flag conditions occurring. Winds should 
quickly diminish later this evening after sunset with a slow 
recovery of relative humidity.

TXZ248>257-351-353-270100-
/O.EXT.KBRO.FW.W.0002.000000T0000Z-200227T0100Z/
Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo-
Inland Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron-
Coastal Kenedy-Northern Hidalgo-
425 PM CST Wed Feb 26 2020

...RED FLAG WARNING NOW IN EFFECT UNTIL 7 PM CST THIS EVENING FOR
VERY LOW HUMIDITY AND GUSTY NORTH WINDS FOR FIRE WEATHER ZONES 
248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 351, AND 353...

* WIND...20 foot wind Northwest to north 15 to 25 mph with gusts 
  up to 30 to 35 mph. 

* HUMIDITY...15 to 25 percent.

* HIGHEST THREAT...East of Interstate 69C.

* IMPACTS...Any fires that develop will likely grow and spread 
  rapidly. Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means critical fire weather conditions are
occurring now...or will shortly. In general...these conditions
include sustained 20 foot winds of 25 MPH or greater...humidity
ranging from below 25 percent in Zapata County to below
45 percent along the coast...each lasting for 2 hours or longer...
 and cured fuels. Humidity below 25 percent in most areas will
trigger fire danger at lower wind speeds.

Detailed decision tables are found at
HTTP://WEATHER.GOV/RGV/?N=MAPCOLORS#FIRE. Listen for later
forecasts and possible Red Flag Warnings.

&&

$$

BRADY
986 
WWUS84 KBRO 270056
RFWBRO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Brownsville TX
656 PM CST Wed Feb 26 2020

...RED FLAG WARNING TO EXPIRE AT 7 PM CST...

TXZ248>257-351-353-270200-
/O.EXP.KBRO.FW.W.0002.000000T0000Z-200227T0100Z/
Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo-
Inland Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron-
Coastal Kenedy-Northern Hidalgo-
656 PM CST Wed Feb 26 2020

...RED FLAG WARNING WILL EXPIRE AT 7 PM CST THIS EVENING FOR VERY
LOW HUMIDITY AND GUSTY NORTH WINDS FOR FIRE WEATHER ZONES 248, 
249, 250, 251, 252, 253, 254, 255, 256, 257, 351, AND 353...

Winds have decreased below Red Flag Warning thresholds, therefore
the warning will be allowed to expire. Although the warning will 
expire, relatively low humidity values will continue to reside 
across the region but will gradually rise tonight as temperatures
fall.

$$

Brady

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 25, 2:23 AM CSTGale WarningBRO34 hr
Feb 25, 2:23 AM CSTSmall Craft AdvisoryBRO13 hr
Feb 25, 3:00 AM CSTDense Fog AdvisoryBROCameron, Willacy5 hr
Feb 25, 3:01 AM CSTMarine Dense Fog AdvisoryBRO5 hr
Feb 25, 8:10 AM CSTDense Fog AdvisoryBRO3 hr
Feb 25, 8:16 AM CSTMarine Dense Fog AdvisoryBRO3 hr

Nearby

Red Flag Warnings in Texas, 2020Every red flag warning in 2020

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.