Alert archive / Texas / Red Flag Warnings in 2021

Red Flag Warning 17, NWS Amarillo, TX

November 15, 202110 counties in Texas

NWS Amarillo, TX issued this red flag warning at Nov 15, 2021, 1:57 PM CST for 10 counties in Texas. It took effect at Nov 16, 2021, 12:00 PM CST. It was in force for 6 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 15, 2021, 1:57 PM CST (19:57 UTC)
In effect from
Nov 16, 2021, 12:00 PM CST
Expired
Nov 16, 2021, 6:00 PM CST
In force
6 hr
Issued by
NWS Amarillo, TX

Counties Armstrong County, TX, Carson County, TX, Collingsworth County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Oldham County, TX, Potter County, TX, Randall County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 30 km from the middle of the area, began a volume at 20:03 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 8.0 hours before the alert went out and 29 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, Amarillo Airport, TX at 12:00Z on 2021-11-15Temperature 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, Amarillo Airport, TX at 12:00Z on 2021-11-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 square meters per square second.193958Sfc1 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
3451 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
29 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

525 
WWUS84 KAMA 151957
RFWAMA

URGENT - FIRE WEATHER MESSAGE
National Weather Service Amarillo TX
157 PM CST Mon Nov 15 2021

TXZ011>013-016>018-317-161000-
/O.UPG.KAMA.FW.A.0013.211116T1800Z-211117T0000Z/
/O.NEW.KAMA.FW.W.0017.211116T1800Z-211117T0000Z/
Oldham-Potter-Carson-Deaf Smith-Randall-Armstrong-
Palo Duro Canyon-
157 PM CST Mon Nov 15 2021

...RED FLAG WARNING IN EFFECT FROM NOON TO 6 PM CST TUESDAY FOR
STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE SOUTHWEST AND SOUTH
CENTRAL TEXAS PANHANDLE...

The National Weather Service in Amarillo has issued a Red Flag
Warning for strong winds and low relative humidity, which is in
effect from noon to 6 PM CST Tuesday. The Fire Weather Watch is
no longer in effect.

* Affected Area...In Texas...Oldham...Potter...Carson...Deaf 
  Smith...Randall...Armstrong and Palo Duro Canyon.

* 20 Foot Winds...Southwest 20 to 25 mph with gusts up to 35 mph.

* Relative Humidity...As low as 8 percent.

* Red Flag Threat Index...Ranging from 3 to 6.

* Timing...Tuesday afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures will
create favorable weather for rapid fire growth and spread. Avoid
activities that promote open flames and sparks.

&&

$$

For more information from the National Weather Service visit...
www.weather.gov/ama
3 follow-up statements
814 
WWUS84 KAMA 160927
RFWAMA

URGENT - FIRE WEATHER MESSAGE
National Weather Service Amarillo TX
327 AM CST Tue Nov 16 2021

TXZ011>013-016>018-317-162200-
/O.CON.KAMA.FW.W.0017.211116T1800Z-211117T0000Z/
Oldham-Potter-Carson-Deaf Smith-Randall-Armstrong-
Palo Duro Canyon-
327 AM CST Tue Nov 16 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 6 PM CST
THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE
SOUTHWEST AND SOUTH CENTRAL TEXAS PANHANDLE...

* Affected Area...In Texas...Oldham...Potter...Carson...Deaf 
  Smith...Randall...Armstrong and Palo Duro Canyon.

* 20 Foot Winds...Southwest 15 to 25 mph with gusts up to 30 mph.

* Relative Humidity...As low as 9 percent.

* Red Flag Threat Index...Ranging from 2 to 4.

* Timing...12 PM TO 6 PM today.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures will
create favorable weather for rapid fire growth and spread. Avoid
activities that promote open flames and sparks.

&&

$$

For more information from the National Weather Service visit...
www.weather.gov/ama
119 
WWUS84 KAMA 161742
RFWAMA

URGENT - FIRE WEATHER MESSAGE
National Weather Service Amarillo TX
1142 AM CST Tue Nov 16 2021


TXZ014-015-019-020-170000-
/O.EXA.KAMA.FW.W.0017.211116T1800Z-211117T0000Z/
Gray-Wheeler-Donley-Collingsworth-
1142 AM CST Tue Nov 16 2021

...RED FLAG WARNING IN EFFECT UNTIL 6 PM CST THIS EVENING FOR
STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE SOUTHEAST TEXAS
PANHANDLE...

The National Weather Service in Amarillo has issued a Red Flag
Warning for strong winds and low relative humidity, which is in
effect until 6 PM CST this evening.

* Affected Area...In Texas...Gray...Wheeler...Donley and 
  Collingsworth.

* 20 Foot Winds...Southwest 15 to 22 mph with gusts up to 30 mph.

* Relative Humidity...As low as 6 percent.

* Red Flag Threat Index...Ranging from 3 to 4, with isolated
  periods of 5 to 6 possible.

* Timing...12 PM TO 6 PM today.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures will
create favorable weather for rapid fire growth and spread. Avoid
activities that promote open flames and sparks.

&&

$$

TXZ011>013-016>018-317-170000-
/O.CON.KAMA.FW.W.0017.211116T1800Z-211117T0000Z/
Oldham-Potter-Carson-Deaf Smith-Randall-Armstrong-
Palo Duro Canyon-
1142 AM CST Tue Nov 16 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING
FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE SOUTHWEST AND
SOUTH CENTRAL TEXAS PANHANDLE...

* Affected Area...In Texas...Oldham...Potter...Carson...Deaf 
  Smith...Randall...Armstrong and Palo Duro Canyon.

* 20 Foot Winds...Southwest 15 to 22 mph with gusts up to 30 mph.

* Relative Humidity...As low as 6 percent.

* Red Flag Threat Index...Ranging from 3 to 4, with isolated
  periods of 5 to 6 possible.

* Timing...12 PM TO 6 PM today.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures will
create favorable weather for rapid fire growth and spread. Avoid
activities that promote open flames and sparks.

&&

$$

For more information from the National Weather Service visit...
www.weather.gov/ama
054 
WWUS84 KAMA 170009
RFWAMA

URGENT - FIRE WEATHER MESSAGE
National Weather Service Amarillo TX
609 PM CST Tue Nov 16 2021

TXZ011>020-317-170115-
/O.EXP.KAMA.FW.W.0017.000000T0000Z-211117T0000Z/
Oldham-Potter-Carson-Gray-Wheeler-Deaf Smith-Randall-Armstrong-
Donley-Collingsworth-Palo Duro Canyon-
609 PM CST Tue Nov 16 2021

...RED FLAG WARNING HAS EXPIRED FOR STRONG WINDS AND LOW RELATIVE
HUMIDITY VALUES FOR THE SOUTHERN TEXAS PANHANDLE...

Winds have diminished and relative humidity values are expected to
increase tonight. Therefore, the Red Flag Warning issued earlier
for the southern Texas Panhandle has been allowed to expire. 

$$

02

For more information from the National Weather Service visit...
www.weather.gov/ama

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 15, 3:29 AM CSTFire Weather WatchAMAArmstrong, Carson, Deaf Smith, Oldham, Potter, Randall10 hr

Nearby

Red Flag Warnings in Texas, 2021Every red flag warning in 2021

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.