Alert archive / Texas / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 161, NWS Amarillo, TX

June 13, 20184 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Jun 13, 2018, 1:06 AM CDT for 4 counties in Texas. It was in force for 34 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 13, 2018, 1:06 AM CDT (06:06 UTC)
Expired: Jun 13, 2018, 1:40 AM CDT
In force: 34 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Dallam County, TX, Hartley County, TX, Moore County, TX, Sherman County, TX

The radar

The Amarillo radar (KAMA), 104 km from the middle of the area, began a volume at 06:05 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 12, 4:40 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 6.1 hours before the alert went out and 105 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: 1665 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 2531 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 275 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 13.3

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 12, 11:58 PM CDT, 1 hour 8 minutes earlier.

Area forecast discussion, Jun 12, 11:58 PM CDT, 1 hour 8 minutes before

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Hazardous weather outlook, Jun 12, 10:35 PM CDT, 2 hours 31 minutes before

Hazardous Weather Outlook...UPDATED
National Weather Service Amarillo TX
1035 PM CDT Tue Jun 12 2018

OKZ001>003-TXZ001>020-317-131100-
Cimarron-Texas-Beaver-Dallam-Sherman-Hansford-Ochiltree-Lipscomb-
Hartley-Moore-Hutchinson-Roberts-Hemphill-Oldham-Potter-Carson-
Gray-Wheeler-Deaf Smith-Randall-Armstrong-Donley-Collingsworth-
Palo Duro Canyon-
1035 PM CDT Tue Jun 12 2018

This Hazardous Weather Outlook is for the Texas and Oklahoma
Panhandles.

.DAY ONE...Tonight.

Thunderstorms are possible across the Panhandles. Some of the
storms may become severe with large hail and damaging winds the
main threats. A Severe Thunderstorm Watch is in effect until 2 AM
CDT for most of the Texas and Oklahoma Panhandles.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Thunderstorms will be possible across the Panhandles Wednesday
and again Sunday and Monday. Some of the storms may become severe.

.SPOTTER INFORMATION STATEMENT...

Emergency managers and spotter groups should be ready for activation
may be needed tonight.

Schneider

In the hours before

Local storm report, Jun 13, 12:18 AM CDT, 48 minutes before

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Local storm report, Jun 13, 12:20 AM CDT, 46 minutes before

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Local storm report, Jun 13, 12:35 AM CDT, 31 minutes before

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Local storm report, Jun 13, 12:36 AM CDT, 30 minutes before

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Local storm report, Jun 13, 12:49 AM CDT, 17 minutes before

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Local storm report, Jun 13, 12:58 AM CDT, 8 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 12, 7:15 PM CDT	Severe Thunderstorm Warning	AMA	Hutchinson, Moore	60 min
Jun 12, 8:06 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson	51 min
Jun 12, 8:17 PM CDT	Special Weather Statement	AMA	Moore	58 min
Jun 12, 8:31 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Moore, Oldham, Potter	74 min
Jun 12, 8:48 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley, Sherman	72 min
Jun 12, 9:22 PM CDT	Areal Flood Advisory	AMA	Dallam, Hartley, Oldham	3 hr
Jun 12, 9:44 PM CDT	Areal Flood Advisory	AMA	Hartley, Moore, Oldham, Potter	3 hr
Jun 12, 9:44 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hartley, Moore, Oldham, Potter, Randall	46 min
Jun 12, 9:49 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hansford, Hartley, Moore, Oldham, Potter and 1 more	71 min
Jun 12, 9:56 PM CDT	Areal Flood Advisory	AMA	Armstrong, Carson, Donley, Potter	3 hr
Jun 12, 10:01 PM CDT	Flash Flood Warning	AMA	Hartley, Moore, Oldham, Potter	107 min
Jun 12, 10:38 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Donley	49 min
Jun 12, 10:49 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Ochiltree, Roberts	86 min
Jun 12, 10:54 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Moore, Oldham, Potter	73 min
Jun 12, 11:11 PM CDT	Severe Thunderstorm Warning	AMA	Hemphill, Lipscomb	79 min
Jun 12, 11:53 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Potter, Randall	67 min
Jun 13, 12:06 AM CDT	Areal Flood Advisory	AMA	Armstrong, Carson, Potter, Randall	3 hr
Jun 13, 12:22 AM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Deaf Smith, Randall	98 min
Jun 13, 12:27 AM CDT	Severe Thunderstorm Warning	AMA	Gray, Hemphill, Roberts, Wheeler	71 min
Jun 13, 12:41 AM CDT	Areal Flood Advisory	AMA	Hemphill, Lipscomb, Roberts	3 hr
Jun 13, 12:51 AM CDT	Areal Flood Advisory	AMA	Armstrong, Randall	111 min
Jun 13, 2:45 AM CDT	Special Weather Statement	AMA	Dallam	45 min
Jun 12, 7:09 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	81 min
Jun 12, 7:19 PM CDT	Areal Flood Advisory	AMA	Beaver	3 hr
Jun 12, 7:44 PM CDT	Severe Thunderstorm Warning	AMA	Beaver, Texas	61 min
Jun 12, 8:06 PM CDT	Flash Flood Warning	AMA	Beaver	3 hr
Jun 12, 8:29 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	76 min
Jun 12, 8:44 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	61 min
Jun 12, 9:41 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	44 min

Nearby

Severe Thunderstorm Warnings in Texas, 2018 Every severe thunderstorm warning in 2018

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.