Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Amarillo, TX

July 25, 2021Oldham County, Texas

NWS Amarillo, TX issued this special weather statement at Jul 25, 2021, 2:03 PM CDT for Oldham County, Texas. It was in force for 27 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: Jul 25, 2021, 2:03 PM CDT (19:03 UTC)
Expired: Jul 25, 2021, 2:30 PM CDT
In force: 27 min
Issued by: NWS Amarillo, TX

County Oldham County, TX

The radar

The Amarillo radar (KAMA), 67 km from the middle of the area, began a volume at 19:07 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, 7.1 hours before the alert went out and 67 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 769 J/kg
Mixed-layer CIN: -114 J/kg
Mixed-layer LCL: 1898 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: -59 m²/s²
0-3 km storm-relative helicity: 21 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 Jul 25, 12:37 PM CDT, 1 hour 26 minutes earlier.

Area forecast discussion, Jul 25, 12:37 PM CDT, 1 hour 26 minutes before

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Hazardous weather outlook, Jul 25, 2:59 AM CDT, 11 hours 4 minutes before

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In the hours before

Special weather statement, Jul 25, 2:03 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Amarillo TX
203 PM CDT Sun Jul 25 2021

TXZ011-016-251930-
Deaf Smith TX-Oldham TX-
203 PM CDT Sun Jul 25 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN OLDHAM AND NORTH
CENTRAL DEAF SMITH COUNTIES UNTIL 230 PM CDT...

At 203 PM CDT, automated weather equipment reported 50 mph winds
associated with a strong thunderstorm near Vega, moving north at 15
mph.

Wind gusts of 50 to 55 mph will be possible with this storm.

Locations impacted include...
Vega.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take shelter in a sturdy building if threatening weather approaches.

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3511 10240 3517 10261 3543 10256 3535 10224
TIME...MOT...LOC 1903Z 198DEG 11KT 3522 10248

DGW

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 2:37 PM CDT	Special Weather Statement	AMA	Randall	23 min
Jul 25, 2:51 PM CDT	Special Weather Statement	AMA	Armstrong	24 min
Jul 25, 3:00 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong	60 min
Jul 25, 3:13 PM CDT	Special Weather Statement	AMA	Randall	32 min
Jul 25, 3:24 PM CDT	Special Weather Statement	AMA	Carson, Gray	36 min
Jul 25, 3:33 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Potter, Randall	42 min
Jul 25, 3:44 PM CDT	Special Weather Statement	AMA	Donley	31 min
Jul 25, 3:52 PM CDT	Special Weather Statement	AMA	Ochiltree	38 min
Jul 25, 3:58 PM CDT	Special Weather Statement	AMA	Gray	32 min
Jul 25, 4:07 PM CDT	Severe Thunderstorm Warning	AMA	Donley, Gray	23 min
Jul 25, 4:26 PM CDT	Severe Thunderstorm Warning	AMA	Donley, Gray	64 min
Jul 25, 4:36 PM CDT	Special Weather Statement	AMA	Ochiltree	24 min
Jul 25, 4:44 PM CDT	Severe Thunderstorm Warning	AMA	Roberts	61 min
Jul 25, 5:03 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb	27 min
Jul 25, 5:08 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth, Wheeler	37 min
Jul 25, 5:28 PM CDT	Special Weather Statement	AMA	Hemphill	32 min
Jul 25, 5:40 PM CDT	Severe Thunderstorm Warning	AMA	Hemphill, Roberts, Wheeler	65 min
Jul 25, 5:44 PM CDT	Special Weather Statement	AMA	Wheeler	31 min
Jul 25, 6:11 PM CDT	Special Weather Statement	AMA	Moore	34 min
Jul 25, 4:11 PM CDT	Special Weather Statement	AMA	Beaver	34 min
Jul 25, 4:34 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	18 min
Jul 25, 4:54 PM CDT	Special Weather Statement	AMA	Beaver	36 min
Jul 25, 6:23 PM CDT	Special Weather Statement	AMA	Texas	37 min

Nearby

Special Weather Statements in Texas, 2021 Every 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.