Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Amarillo, TX

March 13, 2021Collingsworth County, Hemphill County, Wheeler County, Texas

NWS Amarillo, TX issued this special weather statement at Mar 13, 2021, 9:21 PM CST for Collingsworth County, Hemphill County, Wheeler County, Texas. It was in force for 84 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: Mar 13, 2021, 9:21 PM CST (03:21 UTC)
Expired: Mar 13, 2021, 10:45 PM CST
In force: 84 min
Issued by: NWS Amarillo, TX

Counties Collingsworth County, TX, Hemphill County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 114 km from the middle of the area, began a volume at 03:21 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

Dodge City, (KDDC), launched 00:00Z, 3.4 hours before the alert went out and 272 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: 199 J/kg
Mixed-layer CIN: -95 J/kg
Mixed-layer LCL: 473 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 469 m²/s²
0-3 km storm-relative helicity: 534 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.4

Open this sounding in Storm Lab

The text

As transmitted.

338 
WWUS84 KAMA 140321
SPSAMA

Special Weather Statement
National Weather Service Amarillo TX
921 PM CST Sat Mar 13 2021
 
TXZ010-014-015-019-020-140445-
Hemphill TX-Gray TX-Wheeler TX-Donley TX-Collingsworth TX-
921 PM CST Sat Mar 13 2021

...SIGNIFICANT WEATHER ADVISORY FOR WHEELER...EASTERN GRAY...
COLLINGSWORTH...HEMPHILL AND EASTERN DONLEY COUNTIES UNTIL 1045 PM
CST...

At 921 PM CST, Doppler radar was tracking strong thunderstorms along
a line extending from 5 miles east of Canadian to 6 miles southeast
of Hedley. Movement was northeast at 35 mph.

Wind gusts of up to 55 mph will be possible with these storms. 

Locations impacted include...
Canadian, Wellington, Shamrock, Briscoe, Wheeler, Mclean, Hedley,
Dodson, Lutie, Lelia Lake, New Mobeetie, Twitty, Allison, Lela,
Quail, Samnorwood, Glazier, Lake Marvin, Kellerville and Dozier.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take shelter in a sturdy building if threatening weather approaches.
 
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3475 10082 3562 10057 3562 10054 3599 10046
      3606 10000 3475 10000
TIME...MOT...LOC 0321Z 233DEG 31KT 3589 10028 3482 10057 

$$

Ferguson

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 13, 6:11 PM CST	Special Weather Statement	AMA	Armstrong	34 min
Mar 13, 6:23 PM CST	Tornado Warning	AMA	Collingsworth, Donley, Gray, Wheeler	37 min
Mar 13, 6:43 PM CST	Special Weather Statement	AMA	Armstrong, Carson	32 min
Mar 13, 6:52 PM CST	Tornado Warning	AMA	Gray, Hemphill, Roberts, Wheeler	38 min
Mar 13, 7:01 PM CST	Areal Flood Advisory	AMA	Armstrong, Carson	3 hr
Mar 13, 7:03 PM CST	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Donley, Gray, Roberts	57 min
Mar 13, 7:52 PM CST	Severe Thunderstorm Warning	AMA	Gray, Hemphill, Lipscomb, Roberts, Wheeler	83 min
Mar 13, 8:23 PM CST	Special Weather Statement	AMA	Collingsworth, Donley	67 min
Mar 13, 8:39 PM CST	Special Weather Statement	AMA	Lipscomb	96 min
Mar 13, 8:58 PM CST	Areal Flood Advisory	AMA	Hemphill, Lipscomb	3 hr
Mar 13, 9:18 PM CST	Severe Thunderstorm Warning	AMA	Hemphill, Lipscomb	42 min
Mar 13, 9:53 PM CST	Special Weather Statement	AMA	Lipscomb	52 min
Mar 14, 6:18 AM CDT	Wind Advisory	AMA	Deaf Smith, Oldham, Potter, Randall	14 hr
Mar 13, 7:21 PM CST	Special Weather Statement	AMA	Beaver	24 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.