Alert archive / Texas / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 115, NWS Amarillo, TX

June 14, 2009Armstrong County, Donley County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Jun 14, 2009, 5:07 PM CDT for Armstrong 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: Jun 14, 2009, 5:07 PM CDT (22:07 UTC)
Expired: Jun 14, 2009, 6:00 PM CDT
In force: 53 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon

Counties Armstrong County, TX, Donley County, TX

The radar

The Amarillo radar (KAMA), 64 km from the middle of the area, began a volume at 22:08 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 14, 2:20 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 10.1 hours before the alert went out and 63 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: 695 J/kg
Mixed-layer CIN: -269 J/kg
Mixed-layer LCL: 1741 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 228 m²/s²
0-3 km storm-relative helicity: 169 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

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 Jun 14, 4:12 PM CDT, 55 minutes earlier.

Area forecast discussion, Jun 14, 4:12 PM CDT, 55 minutes before

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Hazardous weather outlook, Jun 14, 4:28 PM CDT, 39 minutes before

TEXAS/OKLAHOMA PANHANDLES HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE AMARILLO TX
428 PM CDT SUN JUN 14 2009

OKZ001>003-TXZ001>020-151100-
ARMSTRONG-BEAVER-CARSON-CIMARRON-COLLINGSWORTH-DALLAM-DEAF SMITH-
DONLEY-GRAY-HANSFORD-HARTLEY-HEMPHILL-HUTCHINSON-LIPSCOMB-MOORE-
OCHILTREE-OLDHAM-POTTER-RANDALL-ROBERTS-SHERMAN-TEXAS-WHEELER-
428 PM CDT SUN JUN 14 2009

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

.DAY ONE...

SCATTERED THUNDERSTORMS ARE EXPECTED THROUGH THIS EVENING ACROSS THE
TEXAS AND OKLAHOMA PANHANDLES. A FEW STORMS MAY BECOME SEVERE THIS
AFTERNOON AND EVENING. THE PRIMARY THREATS WILL BE LARGE HAIL AND
DAMAGING WINDS. ISOLATED TORNADOES WILL ALSO BE POSSIBLE. A SEVERE
THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM CDT FOR THE SOUTHERN
THREE FOURTHS OF THE TEXAS PANHANDLE. A TORNADO WATCH IS IN EFFECT
UNTIL 11 PM CDT FOR THE NORTHEAST AND NORTHERN TEXAS PANHANDLE...
AND THE CENTRAL AND EASTERN OKLAHOMA PANHANDLE.

.DAYS TWO THROUGH SEVEN...

THUNDERSTORMS WILL BE POSSIBLE ACROSS MAINLY THE EASTERN HALF OF THE
TEXAS AND AND OKLAHOMA PANHANDLES MONDAY AFTERNOON. SOME OF THESE
STORMS MAY BECOME SEVERE...WITH THE PRIMARY THREATS BEING LARGE HAIL
AND DAMAGING WINDS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER GROUPS AND EMERGENCY MANAGEMENT OFFICIALS SHOULD REMAIN
ALERT AND BE READY FOR POSSIBLE ACTIVATION TODAY AND MONDAY.

SCHNEIDER/COCKRELL

In the hours before

Special weather statement, Jun 14, 3:48 PM CDT, 1 hour 19 minutes before

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Special weather statement, Jun 14, 4:22 PM CDT, 45 minutes before

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Special weather statement, Jun 14, 4:30 PM CDT, 37 minutes before

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Local storm report, Jun 14, 4:43 PM CDT, 24 minutes before

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Local storm report, Jun 14, 4:49 PM CDT, 18 minutes before

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Local storm report, Jun 14, 5:04 PM CDT, 3 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
Jun 13, 7:04 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hutchinson, Moore, Potter	56 min
Jun 13, 7:21 PM CDT	Tornado Warning	AMA	Gray	24 min
Jun 13, 7:27 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hutchinson, Moore, Sherman	63 min
Jun 13, 7:55 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Gray, Hutchinson, Roberts	37 min
Jun 13, 8:05 PM CDT	Severe Thunderstorm Warning	AMA	Hansford	55 min
Jun 14, 4:42 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Potter, Randall	63 min
Jun 14, 5:50 PM CDT	Severe Thunderstorm Warning	AMA	Donley, Gray	23 min
Jun 14, 6:26 PM CDT	Severe Thunderstorm Warning	AMA	Hutchinson	64 min
Jun 14, 6:49 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Randall	56 min
Jun 14, 6:58 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hutchinson, Ochiltree	47 min
Jun 13, 7:34 PM CDT	Severe Thunderstorm Warning	AMA	Cimarron	39 min
Jun 13, 8:54 PM CDT	Severe Thunderstorm Warning	AMA	Beaver, Texas	21 min
Jun 13, 9:57 PM CDT	Severe Thunderstorm Warning	AMA	Beaver, Texas	63 min
Jun 13, 10:07 PM CDT	Tornado Warning	AMA	Beaver	38 min
Jun 13, 10:34 PM CDT	Tornado Warning	AMA	Beaver	41 min
Jun 13, 11:02 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	58 min
Jun 13, 11:28 PM CDT	Tornado Warning	AMA	Beaver	32 min
Jun 13, 11:31 PM CDT	Areal Flood Advisory	AMA	Beaver	3 hr
Jun 13, 11:48 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	27 min

Nearby

Severe Thunderstorm Warnings in Texas, 2009 Every severe thunderstorm warning in 2009

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.