Alert archive / Texas / Red Flag Warnings in 2021

Red Flag Warning 21, NWS Amarillo, TX

December 14, 2021Cimarron County, Texas County, Oklahoma; Dallam County, Hartley County, Sherman County, Texas

NWS Amarillo, TX issued this red flag warning at Dec 14, 2021, 3:28 AM CST for Cimarron County, Texas County, Oklahoma; Dallam County, Hartley County, Sherman County, Texas. It took effect at Dec 14, 2021, 11:00 AM CST. It was in force for 7 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
Dec 14, 2021, 3:28 AM CST (09:28 UTC)
In effect from
Dec 14, 2021, 11:00 AM CST
Expired
Dec 14, 2021, 6:00 PM CST
In force
7 hr
Issued by
NWS Amarillo, TX

Counties Cimarron County, OK, Texas County, OK, Dallam County, TX, Hartley County, TX, Sherman County, TX

The radar

The Amarillo radar (KAMA), 135 km from the middle of the area, began a volume at 09:34 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 00:00Z, 9.5 hours before the alert went out and 136 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 00:00Z on 2021-12-14Temperature 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 00:00Z on 2021-12-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 133 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3763 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
133 m²/s²
0-3 km storm-relative helicity
147 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

732 
WWUS84 KAMA 140928
RFWAMA

URGENT - FIRE WEATHER MESSAGE
National Weather Service Amarillo TX
328 AM CST Tue Dec 14 2021

OKZ001-002-TXZ001-002-006-150000-
/O.UPG.KAMA.FW.A.0017.211215T1500Z-211216T0000Z/
/O.NEW.KAMA.FW.W.0022.211215T1500Z-211216T0000Z/
/O.NEW.KAMA.FW.W.0021.211214T1700Z-211215T0000Z/
Cimarron-Texas-Dallam-Sherman-Hartley-
328 AM CST Tue Dec 14 2021

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 6 PM CST
THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE
WESTERN OKLAHOMA PANHANDLE AND NORTHWEST TEXAS PANHANDLE... 
...RED FLAG WARNING IN EFFECT FROM 9 AM TO 6 PM CST WEDNESDAY FOR 
STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE WESTERN OKLAHOMA 
PANHANDLE AND NORTHWEST 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 11 AM this morning to 6 PM CST this evening. A Red
Flag Warning has also been issued from 9 AM to 6 PM CST
Wednesday. The Fire Weather Watch is no longer in effect.

* Affected Area...In Oklahoma...Cimarron and Texas. In Texas... 
  Dallam...Sherman and Hartley.

* 20 Foot Winds...Today, southwest 15 to 25 mph with gust up to 40
  mph. Wednesday, southwest 40 to 50 mph with gusts up to 70 mph.

* Relative Humidity...Today, as low as 12 percent. Wednesday, as
  low as 9 to 12 percent.

* Red Flag Threat Index...Today, values between 1 and 2 are
  expected across a majority of the Panhandles, with values of 3
  and 4 possible in the western Oklahoma Panhandle and northwest
  Texas Panhandle. Wednesday, values between 3 and 6 are expected
  across a majority of the Panhandles, with values of 7 possible 
  in the Oklahoma and northern Texas Panhandles.

* Timing...Later this morning through the late afternoon hours. 
  Wednesday morning through the late afternoon hours.

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.

&&

$$

OKZ003-TXZ003-004-150000-
/O.UPG.KAMA.FW.A.0017.211215T1500Z-211216T0000Z/
/O.NEW.KAMA.FW.W.0022.211215T1500Z-211216T0000Z/
Beaver-Hansford-Ochiltree-
328 AM CST Tue Dec 14 2021

...RED FLAG WARNING IN EFFECT FROM 9 AM TO 6 PM CST WEDNESDAY FOR
STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE EASTERN OKLAHOMA
PANHANDLE AND NORTH 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 9 AM to 6 PM CST Wednesday. The Fire Weather Watch is
no longer in effect.

* Affected Area...In Oklahoma...Beaver. In Texas...Hansford and 
  Ochiltree.

* 20 Foot Winds...Southwest 35 to 45 mph with gusts up to 70 mph.

* Relative Humidity...As low as 10 to 12 percent.

* Red Flag Threat Index...Values between 3 and 6 are expected 
  across a majority of the Panhandles, with values of 7 possible 
  in the Oklahoma and northern Texas Panhandles.

* Timing...Wednesday morning through the late afternoon hours.

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.

&&

$$

TXZ005-007>020-317-150000-
/O.CON.KAMA.FW.A.0017.211215T1500Z-211216T0000Z/
Lipscomb-Moore-Hutchinson-Roberts-Hemphill-Oldham-Potter-Carson-
Gray-Wheeler-Deaf Smith-Randall-Armstrong-Donley-Collingsworth-
Palo Duro Canyon-
328 AM CST Tue Dec 14 2021

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH WEDNESDAY AFTERNOON FOR STRONG WINDS AND LOW RELATIVE
HUMIDITY FOR THE SOUTHERN AND EASTERN TEXAS PANHANDLE...

* Affected Area...In Texas...Lipscomb...Moore...Hutchinson... 
  Roberts...Hemphill...Oldham...Potter...Carson...Gray...
  Wheeler... Deaf Smith...Randall...Armstrong...Donley...
  Collingsworth and Palo Duro Canyon.

* 20 Foot Winds...Southwest 35 to 45 mph with gusts up to 65 mph.

* Relative Humidity...As low as 13 percent.

* Red Flag Threat Index...Values between 3 and 6 are expected
  across a majority of the Texas Panhandle.

* Timing...Wednesday morning through the late afternoon hours.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that the potential for critical fire
weather conditions exists. Listen for later forecasts and
possible red flag warnings.

&&

$$

For more information from the National Weather Service visit...
www.weather.gov/ama
1 follow-up statement
582 
WWUS84 KAMA 142005
RFWAMA

URGENT - FIRE WEATHER MESSAGE
National Weather Service Amarillo TX
205 PM CST Tue Dec 14 2021

OKZ001-002-TXZ001-002-006-151100-
/O.CON.KAMA.FW.W.0021.000000T0000Z-211215T0000Z/
/O.CON.KAMA.FW.W.0022.211215T1500Z-211216T0000Z/
Cimarron-Texas-Dallam-Sherman-Hartley-
205 PM CST Tue Dec 14 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING
FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE WESTERN
OKLAHOMA PANHANDLE AND NORTHWEST TEXAS PANHANDLE...
...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM TO 6 PM CST
WEDNESDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE
WESTERN OKLAHOMA PANHANDLE AND NORTHWEST TEXAS PANHANDLE...

* Affected Area...In Oklahoma...Cimarron and Texas. In Texas... 
  Dallam...Sherman and Hartley.

* 20 Foot Winds...Today, southwest 15 to 25 mph with gust up to 
  40 mph. Wednesday, southwest 40 to 50 mph with gusts up to 70 
  mph.

* Relative Humidity...Today, as low as 12 percent. Wednesday, as 
  low as 9 to 12 percent.

* Red Flag Threat Index...Today, values between 1 and 2 are
  expected across a majority of the Panhandles, with values of 3
  and 4 possible in the western Oklahoma Panhandle and northwest
  Texas Panhandle. Wednesday, values between 3 and 7 are expected
  across a majority of the Panhandles, with values of 8 possible 
  in the Oklahoma and northern Texas Panhandles.

* Timing...Through the late afternoon hours. Wednesday morning 
  through the late afternoon hours.

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.

&&

$$

OKZ003-TXZ003-004-151100-
/O.CON.KAMA.FW.W.0022.211215T1500Z-211216T0000Z/
Beaver-Hansford-Ochiltree-
205 PM CST Tue Dec 14 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM TO 6 PM CST
WEDNESDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE
EASTERN OKLAHOMA PANHANDLE AND NORTH CENTRAL TEXAS PANHANDLE...

* Affected Area...In Oklahoma...Beaver. In Texas...Hansford and 
  Ochiltree.

* 20 Foot Winds...Southwest 35 to 45 mph with gusts up to 70 mph.

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

* Red Flag Threat Index...Values between 3 and 7 are expected
  across a majority of the Panhandles, with values of 8 possible 
  in the Oklahoma and northern Texas Panhandles.

* Timing...Wednesday morning through the late afternoon hours.

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.

&&

$$

TXZ005-007>020-317-151100-
/O.CON.KAMA.FW.A.0017.211215T1500Z-211216T0000Z/
Lipscomb-Moore-Hutchinson-Roberts-Hemphill-Oldham-Potter-Carson-
Gray-Wheeler-Deaf Smith-Randall-Armstrong-Donley-Collingsworth-
Palo Duro Canyon-
205 PM CST Tue Dec 14 2021

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH WEDNESDAY AFTERNOON FOR STRONG WINDS AND LOW RELATIVE
HUMIDITY FOR THE SOUTHERN AND EASTERN TEXAS PANHANDLE...

* Affected Area...In Texas...Lipscomb...Moore...Hutchinson... 
  Roberts...Hemphill...Oldham...Potter...Carson...Gray...
  Wheeler... Deaf Smith...Randall...Armstrong...Donley...
  Collingsworth and Palo Duro Canyon.

* 20 Foot Winds...Southwest 35 to 45 mph with gusts up to 65 mph.

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

* Red Flag Threat Index...Values between 3 and 7 are expected
  across a majority of the Texas Panhandle with values of 8
  possible in the northern Texas Panhandle.

* Timing...Wednesday morning through the late afternoon hours.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that the potential for critical fire
weather conditions exists. Listen for later forecasts and
possible red flag warnings.

&&

$$

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
Dec 14, 3:28 AM CSTRed Flag WarningAMABeaver, Cimarron, Texas42 hr
Dec 14, 4:04 AM CSTHigh Wind WarningAMABeaver, Cimarron, Texas38 hr

Nearby

Red Flag Warnings in Texas, 2021Red Flag Warnings in Oklahoma, 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.