Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Amarillo, TX

April 23, 2021Ochiltree County, Texas

NWS Amarillo, TX issued this special weather statement at Apr 23, 2021, 8:06 PM CDT for Ochiltree County, Texas. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 23, 2021, 8:06 PM CDT (01:06 UTC)
Expired
Apr 23, 2021, 8:30 PM CDT
In force
24 min
Issued by
NWS Amarillo, TX

County Ochiltree County, TX

The radar

The Amarillo radar (KAMA), 139 km from the middle of the area, began a volume at 01:08 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, 1.1 hours before the alert went out and 139 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 2021-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 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 2021-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 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
3101 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Amarillo, TX wrote its last area forecast discussion before this special weather statement went out at Apr 23, 6:47 PM CDT, 1 hour 19 minutes earlier.

Area forecast discussion, Apr 23, 6:47 PM CDT, 1 hour 19 minutes before
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Hazardous weather outlook, Apr 23, 3:52 PM CDT, 4 hours 14 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service Amarillo TX
352 PM CDT Fri Apr 23 2021

OKZ001>003-TXZ001>020-317-241100-
Cimarron-Texas-Beaver-Dallam-Sherman-Hansford-Ochiltree-Lipscomb-
Hartley-Moore-Hutchinson-Roberts-Hemphill-Oldham-Potter-Carson-
Gray-Wheeler-Deaf Smith-Randall-Armstrong-Donley-Collingsworth-
Palo Duro Canyon-
352 PM CDT Fri Apr 23 2021

This Hazardous Weather Outlook is for the Texas and Oklahoma
Panhandles.

.DAY ONE...This Afternoon and Tonight.

Thunderstorms are possible across portions of the combined
Panhandles this afternoon and evening. Some storms may become
strong to severe with large hail and damaging winds being the
main threat. An isolated tornado cannot be ruled out. A Tornado
Watch is in effect for Collingsworth County until 9 PM this
evening.

Elevated fire weather conditions are expected this afternoon in
the southwest Texas Panhandle.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Thunderstorms are possible across portions of the combined
Panhandles Tuesday and Wednesday. Strong to severe thunderstorms
cannot be ruled out in the eastern Panhandles.

Elevated to critical fire weather conditions are expected Saturday
through Thursday across portions of the Panhandles due to gusty
winds, low afternoon relative humidity values, and receptive
fuels. Sunday and Monday are the most favored for critical fire
weather conditions across most of the combined Panhandles.

.SPOTTER INFORMATION STATEMENT...

Limited spotter activation may become necessary for Collingsworth
County this afternoon and early this evening.

Area fire managers and emergency officials should be alert for
elevated to critical fire weather conditions Saturday through
Thursday.

In the hours before

Special weather statement, Apr 23, 5:58 PM CDT, 2 hours 8 minutes before
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Local storm report, Apr 23, 6:11 PM CDT, 1 hour 55 minutes before
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Local storm report, Apr 23, 6:23 PM CDT, 1 hour 43 minutes before
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Special weather statement, Apr 23, 6:24 PM CDT, 1 hour 42 minutes before
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Special weather statement, Apr 23, 6:28 PM CDT, 1 hour 38 minutes before
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Special weather statement, Apr 23, 6:59 PM CDT, 1 hour 7 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 23, 7:01 PM CDTSpecial Weather StatementAMASherman29 min
Apr 23, 7:27 PM CDTSpecial Weather StatementAMASherman33 min
Apr 23, 7:59 PM CDTSpecial Weather StatementAMAHansford31 min
Apr 24, 1:59 AM CDTFire Weather WatchAMADallam, Deaf Smith, Hartley, Moore, Oldham, Potter and 2 more25 hr
Apr 24, 2:32 PM CDTFire Weather WatchAMAArmstrong, Carson, Dallam, Deaf Smith, Donley, Gray and 10 more24 hr

Nearby

Special Weather Statements in Texas, 2021Every special weather statement 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.