Alert archive / Texas / Red Flag Warnings in 2021

Red Flag Warning 7, NWS Amarillo, TX

April 5, 202114 counties in Texas; Cimarron County, Texas County, Oklahoma

NWS Amarillo, TX issued this red flag warning at Apr 5, 2021, 2:05 PM CDT for 14 counties in Texas; Cimarron County, Texas County, Oklahoma. It took effect at Apr 6, 2021, 1:00 PM CDT. It was in force for 8 hr. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Apr 5, 2021, 2:05 PM CDT (19:05 UTC)
In effect from
Apr 6, 2021, 1:00 PM CDT
Expired
Apr 6, 2021, 9:00 PM CDT
In force
8 hr
Issued by
NWS Amarillo, TX

Counties Cimarron County, OK, Texas County, OK, Armstrong County, TX, Carson County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Gray 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), 54 km from the middle of the area, began a volume at 19:11 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.

What was reported inside it

TimeReportWhereRemark
Apr 6, 8:55 PM CDTNON-TSTM WND GST 635 Se Kenton, OK

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 7.1 hours before the alert went out and 54 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 2021-04-05Temperature 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 2021-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
2015 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

951 
WWUS84 KAMA 051905
RFWAMA

URGENT - FIRE WEATHER MESSAGE
National Weather Service Amarillo TX
205 PM CDT Mon Apr 5 2021

OKZ001-TXZ001-002-006>008-011>014-016>019-317-061100-
/O.UPG.KAMA.FW.A.0006.210406T1800Z-210407T0200Z/
/O.NEW.KAMA.FW.W.0007.210406T1800Z-210407T0200Z/
Cimarron-Dallam-Sherman-Hartley-Moore-Hutchinson-Oldham-Potter-
Carson-Gray-Deaf Smith-Randall-Armstrong-Donley-Palo Duro Canyon-
205 PM CDT Mon Apr 5 2021

...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM CDT TUESDAY FOR
STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE WESTERN OKLAHOMA
PANHANDLE AND THE WESTERN AND 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 1 PM to 9 PM CDT Tuesday. The Fire Weather Watch is
no longer in effect.

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

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

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

* Red Flag Threat Index...Values between 4 and 7.

* Timing...1 PM through 9 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
618 
WWUS84 KAMA 060844
RFWAMA

URGENT - FIRE WEATHER MESSAGE
National Weather Service Amarillo TX
344 AM CDT Tue Apr 6 2021

OKZ002-TXZ003-062045-
/O.EXA.KAMA.FW.W.0007.210406T1800Z-210407T0200Z/
Texas-Hansford-
344 AM CDT Tue Apr 6 2021

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM
CDT THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR
THE OKLAHOMA 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 1 PM this afternoon to 9 PM CDT this evening.

* Affected Area...In Oklahoma...Texas. In Texas...Hansford.

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

* Relative Humidity...As low as 4 percent.

* Red Flag Threat Index...Values between 4 and 6.

* Timing...1 PM through 9 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.

&&

$$

OKZ001-TXZ001-002-006>008-011>014-016>019-317-062045-
/O.CON.KAMA.FW.W.0007.210406T1800Z-210407T0200Z/
Cimarron-Dallam-Sherman-Hartley-Moore-Hutchinson-Oldham-Potter-
Carson-Gray-Deaf Smith-Randall-Armstrong-Donley-Palo Duro Canyon-
344 AM CDT Tue Apr 6 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
9 PM CDT THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY
FOR THE WESTERN AND CENTRAL PANHANDLES...

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

* 20 Foot Winds...West 20 to 30 mph with gusts up to 50 mph.

* Relative Humidity...As low as 3 percent.

* Red Flag Threat Index...Values between 5 and 8.

* Timing...1 PM through 9 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
712 
WWUS84 KAMA 061908
RFWAMA

URGENT - FIRE WEATHER MESSAGE
National Weather Service Amarillo TX
208 PM CDT Tue Apr 6 2021

OKZ001-002-TXZ001>003-006>008-011>014-016>019-317-070200-
/O.CON.KAMA.FW.W.0007.000000T0000Z-210407T0200Z/
Cimarron-Texas-Dallam-Sherman-Hansford-Hartley-Moore-Hutchinson-
Oldham-Potter-Carson-Gray-Deaf Smith-Randall-Armstrong-Donley-
Palo Duro Canyon-
208 PM CDT Tue Apr 6 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING
FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE WESTERN AND
CENTRAL PANHANDLES...

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

* 20 Foot Winds...West 20 to 30 mph with gusts up to 45 mph. Winds
  will shift to the northwest this evening. 

* Relative Humidity...As low as 4 percent.

* Red Flag Threat Index...Values between 5 and 8.

* Timing...through 9 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

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.