Alert archive / Texas / Red Flag Warnings in 2021

Red Flag Warning 25, NWS Amarillo, TX

December 29, 20216 counties in Texas

NWS Amarillo, TX issued this red flag warning at Dec 29, 2021, 3:23 AM CST for 6 counties in Texas. It took effect at Dec 29, 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
Dec 29, 2021, 3:23 AM CST (09:23 UTC)
In effect from
Dec 29, 2021, 12:00 PM CST
Expired
Dec 29, 2021, 6:00 PM CST
In force
6 hr
Issued by
NWS Amarillo, TX

Counties Deaf Smith County, TX, Hartley County, TX, Moore County, TX, Oldham County, TX, Potter County, TX, Randall County, TX

The radar

The Amarillo radar (KAMA), 52 km from the middle of the area, began a volume at 09:27 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, 9.4 hours before the alert went out and 53 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 2021-12-29Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Amarillo Airport, TX at 00:00Z on 2021-12-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 99 square meters per square second.1939587897117136Sfc1 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
2759 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
99 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

391 
WWUS84 KAMA 290923
RFWAMA

URGENT - FIRE WEATHER MESSAGE
National Weather Service Amarillo TX
323 AM CST Wed Dec 29 2021

TXZ006-007-011-012-016-017-317-300000-
/O.NEW.KAMA.FW.W.0025.211229T1800Z-211230T0000Z/
Hartley-Moore-Oldham-Potter-Deaf Smith-Randall-Palo Duro Canyon-
323 AM CST Wed Dec 29 2021

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM CST THIS
EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE WEST
CENTRAL AND SOUTHWESTERN 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 today to 6 PM CST this evening.

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

* 20 Foot Winds...West 20 to 30 mph with gusts up to 40 mph.

* Relative Humidity...As low as 19 percent.

* Red Flag Threat Index...3.

* Timing...12 PM CST through 6 PM CST.

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, 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.