Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Amarillo, TX

May 25, 2021Potter County, Texas

NWS Amarillo, TX issued this special weather statement at May 25, 2021, 6:21 PM CDT for Potter County, Texas. It was in force for 39 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 25, 2021, 6:21 PM CDT (23:21 UTC)
Expired: May 25, 2021, 7:00 PM CDT
In force: 39 min
Issued by: NWS Amarillo, TX

County Potter County, TX

The radar

The Amarillo radar (KAMA), 28 km from the middle of the area, began a volume at 23:22 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, 11.4 hours before the alert went out and 29 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2701 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

656 
WWUS84 KAMA 252321
SPSAMA

Special Weather Statement
National Weather Service Amarillo TX
621 PM CDT Tue May 25 2021
 
TXZ012-260000-
Potter TX-
621 PM CDT Tue May 25 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN POTTER COUNTY UNTIL 700
PM CDT...

At 620 PM CDT, Doppler radar was tracking a strong thunderstorm 10
miles east of Valley De Oro, or 14 miles north of Amarillo, moving
northeast at 30 mph.

Up to nickel size hail and wind gusts of up to 55 mph will be 
possible with this storm.

This storm will remain over mainly rural areas of northern Potter
County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take shelter in a sturdy building if threatening weather approaches.
 
&&

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
the Panhandle of Texas.

LAT...LON 3538 10206 3562 10185 3562 10162 3546 10162
      3529 10194
TIME...MOT...LOC 2320Z 226DEG 27KT 3540 10194 

$$

Ferguson

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 1:37 AM CDT	Special Weather Statement	AMA	Deaf Smith	38 min
May 25, 2:58 AM CDT	Special Weather Statement	AMA	Deaf Smith	32 min
May 25, 5:06 PM CDT	Special Weather Statement	AMA	Oldham	24 min
May 25, 5:15 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter, Randall	60 min
May 25, 5:45 PM CDT	Special Weather Statement	AMA	Oldham	30 min
May 25, 6:05 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter, Randall	55 min
May 25, 6:56 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter, Randall	64 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.