Alert archive / Texas / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 138, NWS Amarillo, TX

August 8, 2014Collingsworth County, Donley County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Aug 8, 2014, 6:52 PM CDT for Collingsworth County, Donley County, Texas. It was in force for 53 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 8, 2014, 6:52 PM CDT (23:52 UTC)
Expired: Aug 8, 2014, 7:45 PM CDT
In force: 53 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon

Counties Collingsworth County, TX, Donley County, TX

The radar

The Amarillo radar (KAMA), 110 km from the middle of the area, began a volume at 23:52 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, 11.9 hours before the alert went out and 109 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: 249 J/kg
Mixed-layer CIN: -152 J/kg
Mixed-layer LCL: 1528 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 52 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Aug 8, 6:37 PM CDT, 15 minutes earlier.

Area forecast discussion, Aug 8, 6:37 PM CDT, 15 minutes before

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Hazardous weather outlook, Aug 8, 3:28 PM CDT, 3 hours 24 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AMARILLO TX
328 PM CDT FRI AUG 8 2014

OKZ001>003-TXZ001>020-091200-
CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB-
HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON-
GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH-
328 PM CDT FRI AUG 8 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE TEXAS AND OKLAHOMA
PANHANDLES.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE ACROSS MUCH OF THE
TEXAS AND OKLAHOMA PANHANDLES TODAY THROUGH TONIGHT. NO WIDESPREAD OR
ORGANIZED SEVERE THUNDERSTORMS ARE EXPECTED AT THIS TIME. HOWEVER...A
FEW STORMS COULD BECOME STRONG WITH WIND GUSTS TO 55 MPH AND HAIL UP
TO THE SIZE OF NICKELS POSSIBLE.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

ISOLATED TO SCATTERED THUNDERSTORMS WILL CONTINUE ACROSS MOST OF THE
TEXAS AND OKLAHOMA PANHANDLES SATURDAY THROUGH TUESDAY NIGHT...AND
AGAIN ACROSS THE NORTHWEST PORTIONS OF THE PANHANDLES WEDNESDAY
NIGHT. NO WIDESPREAD OR ORGANIZED SEVERE THUNDERSTORMS ARE EXPECTED
AT THIS TIME. HOWEVER...A FEW STORMS COULD BECOME STRONG WITH WIND
GUSTS UP TO 55 MPH AND HAIL UP TO THE SIZE OF NICKELS POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

In the hours before

Local storm report, Aug 8, 5:10 PM CDT, 1 hour 42 minutes before

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Local storm report, Aug 8, 5:13 PM CDT, 1 hour 39 minutes before

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Special weather statement, Aug 8, 5:16 PM CDT, 1 hour 36 minutes before

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Special weather statement, Aug 8, 6:10 PM CDT, 42 minutes before

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Special weather statement, Aug 8, 6:13 PM CDT, 39 minutes before

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Local storm report, Aug 8, 6:43 PM CDT, 9 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 7:04 PM CDT	Special Weather Statement	AMA	Sherman	41 min
Aug 7, 7:36 PM CDT	Special Weather Statement	AMA	Sherman	39 min
Aug 7, 8:13 PM CDT	Special Weather Statement	AMA	Hansford, Hutchinson	47 min
Aug 8, 3:19 PM CDT	Special Weather Statement	AMA	Randall	26 min
Aug 8, 3:41 PM CDT	Special Weather Statement	AMA	Carson	49 min
Aug 8, 3:49 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Potter	41 min
Aug 8, 4:13 PM CDT	Special Weather Statement	AMA	Armstrong	47 min
Aug 8, 4:18 PM CDT	Special Weather Statement	AMA	Carson	42 min
Aug 8, 4:28 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson	37 min
Aug 8, 4:31 PM CDT	Areal Flood Advisory	AMA	Armstrong, Carson	3 hr
Aug 8, 4:44 PM CDT	Special Weather Statement	AMA	Deaf Smith	46 min
Aug 8, 4:51 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hutchinson	18 min
Aug 8, 4:59 PM CDT	Special Weather Statement	AMA	Armstrong	46 min
Aug 8, 5:16 PM CDT	Special Weather Statement	AMA	Randall	44 min
Aug 8, 6:13 PM CDT	Special Weather Statement	AMA	Donley	47 min
Aug 8, 6:16 PM CDT	Severe Thunderstorm Warning	AMA	Donley, Gray	46 min
Aug 7, 8:55 PM CDT	Special Weather Statement	AMA	Texas	50 min
Aug 8, 6:10 PM CDT	Special Weather Statement	AMA	Cimarron	50 min

Nearby

Severe Thunderstorm Warnings in Texas, 2014 Every severe thunderstorm warning in 2014

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.