Alert archive / Texas / Red Flag Warnings in 2021

Red Flag Warning 14, NWS Amarillo, TX

October 25, 202110 counties in Texas; Cimarron County, Texas County, Oklahoma

NWS Amarillo, TX issued this red flag warning at Oct 25, 2021, 2:55 PM CDT for 10 counties in Texas; Cimarron County, Texas County, Oklahoma. It took effect at Oct 26, 2021, 12:00 PM CDT. 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
Oct 25, 2021, 2:55 PM CDT (19:55 UTC)
In effect from
Oct 26, 2021, 12:00 PM CDT
Expired
Oct 26, 2021, 7:00 PM CDT
In force
7 hr
Issued by
NWS Amarillo, TX

Counties Cimarron County, OK, Texas County, OK, Dallam County, TX, Deaf Smith County, TX, Hansford County, TX, Hartley County, TX, Hutchinson County, TX, Moore County, TX, Oldham County, TX, Potter County, TX, Randall County, TX, Sherman County, TX

The radar

The Amarillo radar (KAMA), 79 km from the middle of the area, began a volume at 19:55 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, 7.9 hours before the alert went out and 79 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 2021-10-25Temperature 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 2021-10-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 365 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
2447 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
365 m²/s²
0-3 km storm-relative helicity
396 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

883 
WWUS84 KAMA 251955
RFWAMA

URGENT - FIRE WEATHER MESSAGE
National Weather Service Amarillo TX
255 PM CDT Mon Oct 25 2021

OKZ001-002-TXZ001-002-006-261200-
/O.UPG.KAMA.FW.A.0012.211026T1800Z-211027T0000Z/
/O.NEW.KAMA.FW.W.0014.211026T1700Z-211027T0000Z/
Cimarron-Texas-Dallam-Sherman-Hartley-
255 PM CDT Mon Oct 25 2021

...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM CDT TUESDAY FOR
STRONG WINDS AND LOW RELATIVE HUMIDITY FOR NORTHWEST PANHANDLES...

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 7 PM CDT Tuesday. 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...Southwest 25 to 35 mph with gusts 40 to 45 mph,
  isolated 50 mph.

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

* Red Flag Threat Index...4 to 6

* Timing...1 PM to 7 PM CDT

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.

&&

$$

TXZ003-007-008-011-012-016-017-317-261200-
/O.NEW.KAMA.FW.W.0014.211026T1700Z-211027T0000Z/
Hansford-Moore-Hutchinson-Oldham-Potter-Deaf Smith-Randall-
Palo Duro Canyon-
255 PM CDT Mon Oct 25 2021

...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM CDT TUESDAY FOR
STRONG WINDS AND LOW RELATIVE HUMIDITY FOR SOUTHWEST 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 noon to 7 PM CDT Tuesday.

* Affected Area...In Texas...Hansford...Moore...Hutchinson... 
  Oldham...Potter...Deaf Smith...Randall and Palo Duro Canyon.

* 20 Foot Winds...Southwest 25 to 30 mph with gusts up to 45 mph.

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

* Red Flag Threat Index...3 to 5.

* Timing...1 to 7 pm. 

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
2 follow-up statements
504 
WWUS84 KAMA 260745
RFWAMA

URGENT - FIRE WEATHER MESSAGE
National Weather Service Amarillo TX
245 AM CDT Tue Oct 26 2021

OKZ001-002-TXZ001>003-006>008-011-012-016-017-317-270000-
/O.CON.KAMA.FW.W.0014.211026T1700Z-211027T0000Z/
Cimarron-Texas-Dallam-Sherman-Hansford-Hartley-Moore-Hutchinson-
Oldham-Potter-Deaf Smith-Randall-Palo Duro Canyon-
245 AM CDT Tue Oct 26 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM CDT
THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR
SOUTHWEST AND NORTH CENTRAL TEXAS PANHANDLE...

* Affected Area...In Oklahoma...Cimarron and Texas. In Texas... 
  Dallam...Sherman...Hansford...Hartley...Moore...Hutchinson... 
  Oldham...Potter...Deaf Smith...Randall and Palo Duro Canyon.

* 20 Foot Winds...Southwest 25 to 33 mph with gusts up to 45 mph.

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

* Red Flag Threat Index...3 to 5.

* Timing...1 to 7 pm.

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
071 
WWUS84 KAMA 270010
RFWAMA

URGENT - FIRE WEATHER MESSAGE
National Weather Service Amarillo TX
710 PM CDT Tue Oct 26 2021

OKZ001-002-TXZ001>003-006>008-011-012-016-017-317-270115-
/O.EXP.KAMA.FW.W.0014.000000T0000Z-211027T0000Z/
Cimarron-Texas-Dallam-Sherman-Hansford-Hartley-Moore-Hutchinson-
Oldham-Potter-Deaf Smith-Randall-Palo Duro Canyon-
710 PM CDT Tue Oct 26 2021

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

Winds are diminishing and relative humidity values are increasing
as temperatures cool off with loss of daytime heating. As a
result, the Red Flag Warning issued earlier 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
Oct 25, 3:36 AM CDTFire Weather WatchAMADallam, Hartley, Sherman11 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.