Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Amarillo, TX

May 10, 2021Armstrong County, Donley County, Texas

NWS Amarillo, TX issued this special weather statement at May 10, 2021, 12:47 AM CDT for Armstrong County, Donley County, Texas. It was in force for 58 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
May 10, 2021, 12:47 AM CDT (05:47 UTC)
Expired
May 10, 2021, 1:45 AM CDT
In force
58 min
Issued by
NWS Amarillo, TX

Counties Armstrong County, TX, Donley County, TX

The radar

The Amarillo radar (KAMA), 45 km from the middle of the area, began a volume at 05:50 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, 5.8 hours before the alert went out and 44 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 2021-05-10Temperature 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 2021-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -48 square meters per square second.1939587897117Sfc1 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
2438 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
-48 m²/s²
0-3 km storm-relative helicity
176 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 May 10, 12:20 AM CDT, 27 minutes earlier.

Area forecast discussion, May 10, 12:20 AM CDT, 27 minutes before
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Hazardous weather outlook, May 9, 2:24 PM CDT, 10 hours 23 minutes before
Hazardous Weather Outlook
National Weather Service Amarillo TX
224 PM CDT Sun May 9 2021

OKZ001>003-TXZ001>020-317-100730-
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-
224 PM CDT Sun May 9 2021

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

.DAY ONE...This Afternoon and Tonight.

Thunderstorms will be possible across much of the Oklahoma and
Texas Panhandles late this afternoon and tonight. A few storms
may become strong to severe in the far western sections of the
area, with damaging winds the primary hazard.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Thunderstorms may develop across parts of the Oklahoma and Texas
Panhandles Monday night through Tuesday night, and then again
Friday evening. Any storms that form during this time period are
expected to remain below severe levels at this time.

.SPOTTER INFORMATION STATEMENT...

Limited spotter activation may become necessary across far western
sections of the area late this afternoon and evening.

In the hours before

Special weather statement, May 9, 8:42 PM CDT, 4 hours 5 minutes before
Special Weather Statement
National Weather Service Amarillo TX
842 PM CDT Sun May 9 2021

TXZ006-011-100245-
Hartley TX-Oldham TX-
842 PM CDT Sun May 9 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN OLDHAM AND HARTLEY
COUNTIES UNTIL 945 PM CDT...

At 841 PM CDT, Doppler radar was tracking a strong thunderstorm 6
miles north of Romero, or 12 miles southeast of Amistad, moving east
at 45 mph.

Half inch hail and wind gusts up to 50 mph will be possible with this
storm.

Locations impacted include...
Hartley, Channing, Boys Ranch and Romero.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take shelter in a sturdy building if threatening weather approaches.

&&

LAT...LON 3604 10304 3604 10216 3540 10217 3557 10299
      3560 10304
TIME...MOT...LOC 0141Z 278DEG 41KT 3581 10297

Ferguson
Special weather statement, May 9, 8:45 PM CDT, 4 hours 2 minutes before
Special Weather Statement
National Weather Service Amarillo TX
845 PM CDT Sun May 9 2021

TXZ016-017-100215-
Randall TX-Deaf Smith TX-
845 PM CDT Sun May 9 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN RANDALL AND
SOUTHEASTERN DEAF SMITH COUNTIES UNTIL 915 PM CDT...

At 844 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 7 miles west of Hereford to near Black to
Friona. Movement was southeast at 35 mph.

Up to nickel size hail and wind gusts of 50 to 55 mph will be
possible with these storms.

Locations impacted include...
Hereford, Umbarger, Buffalo Lake and Dawn.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take shelter in a sturdy building if threatening weather approaches.

&&

LAT...LON 3475 10270 3500 10256 3495 10191 3475 10201
TIME...MOT...LOC 0144Z 293DEG 31KT 3486 10252 3469 10257 3462 10270

Ferguson
Special weather statement, May 9, 11:13 PM CDT, 1 hour 34 minutes before
Special Weather Statement
National Weather Service Amarillo TX
1113 PM CDT Sun May 9 2021

TXZ016-100500-
Deaf Smith TX-
1113 PM CDT Sun May 9 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN DEAF SMITH COUNTY
UNTIL MIDNIGHT CDT...

At 1113 PM CDT, Doppler radar was tracking a strong thunderstorm 7
miles northeast of Bootleg, or 19 miles north of Friona, moving east
at 40 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Hereford and Simms.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take shelter in a sturdy building if threatening weather approaches.

&&

LAT...LON 3475 10278 3502 10280 3508 10229 3475 10225
TIME...MOT...LOC 0413Z 265DEG 34KT 3492 10273

Guerrero
Special weather statement, May 10, 12:00 AM CDT, 47 minutes before
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Special weather statement, May 10, 12:25 AM CDT, 22 minutes before
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Special weather statement, May 10, 12:47 AM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 9, 7:31 PM CDTSpecial Weather StatementAMADeaf Smith59 min
May 9, 8:22 PM CDTSpecial Weather StatementAMADeaf Smith23 min
May 9, 8:42 PM CDTSpecial Weather StatementAMAHartley63 min
May 9, 8:45 PM CDTSpecial Weather StatementAMADeaf Smith30 min
May 9, 11:13 PM CDTSpecial Weather StatementAMADeaf Smith47 min
May 10, 12:00 AM CDTSpecial Weather StatementAMARandall45 min
May 10, 12:25 AM CDTSpecial Weather StatementAMAOldham65 min

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.