Alert archive / Texas / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 133, NWS Amarillo, TX

May 23, 2019Dallam County, Sherman County, Texas; Cimarron County, Texas County, Oklahoma

NWS Amarillo, TX issued this severe thunderstorm warning at May 23, 2019, 8:56 AM CDT for Dallam County, Sherman County, Texas; Cimarron County, Texas County, Oklahoma. It was in force for 49 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: May 23, 2019, 8:56 AM CDT (13:56 UTC)
Expired: May 23, 2019, 9:45 AM CDT
In force: 49 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.75 in
Wind: 50.0 mph

Counties Cimarron County, OK, Texas County, OK, Dallam County, TX, Sherman County, TX

The radar

The Amarillo radar (KAMA), 147 km from the middle of the area, began a volume at 13:57 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, 1.9 hours before the alert went out and 148 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: 1941 J/kg
Mixed-layer CIN: -107 J/kg
Mixed-layer LCL: 815 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 107 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 6.3

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 May 23, 5:45 AM CDT, 3 hours 11 minutes earlier.

Area forecast discussion, May 23, 5:45 AM CDT, 3 hours 11 minutes before

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Hazardous weather outlook, May 23, 8:28 AM CDT, 28 minutes before

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In the hours before

Special weather statement, May 23, 7:21 AM CDT, 1 hour 35 minutes before

Special Weather Statement
National Weather Service Amarillo TX
721 AM CDT Thu May 23 2019

TXZ006-011-231245-
Hartley TX-Oldham TX-
721 AM CDT Thu May 23 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN OLDHAM AND WESTERN
HARTLEY COUNTIES UNTIL 745 AM CDT...

At 721 AM CDT, Doppler radar was tracking a strong thunderstorm over
Romero, or 10 miles northeast of Nara Visa, moving north at 35 mph.

Half inch hail will be possible with this storm.

Locations impacted include...
Romero.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take shelter in a sturdy building if threatening weather approaches.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3605 10304 3605 10258 3555 10277 3554 10304
TIME...MOT...LOC 1221Z 190DEG 30KT 3570 10296

LFM

Special weather statement, May 23, 8:09 AM CDT, 47 minutes before

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Local storm report, May 23, 8:12 AM CDT, 44 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
May 23, 3:48 AM CDT	Flash Flood Watch	AMA	Armstrong, Carson, Collingsworth, Donley, Gray, Hansford and 10 more	36 hr
May 23, 7:21 AM CDT	Special Weather Statement	AMA	Hartley	24 min
May 23, 7:40 AM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley	50 min
May 23, 8:28 AM CDT	Severe Thunderstorm Warning	AMA	Dallam	47 min
May 23, 10:10 AM CDT	Special Weather Statement	AMA	Oldham	35 min
May 23, 11:43 AM CDT	Severe Thunderstorm Warning	AMA	Moore, Sherman	47 min
May 23, 12:29 PM CDT	Special Weather Statement	AMA	Moore	31 min
May 23, 12:59 PM CDT	Special Weather Statement	AMA	Moore	31 min
May 23, 1:46 PM CDT	Severe Thunderstorm Warning	AMA	Hutchinson, Moore	44 min
May 23, 2:29 PM CDT	Special Weather Statement	AMA	Hutchinson	31 min
May 23, 2:36 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hutchinson, Ochiltree	54 min
May 23, 3:04 PM CDT	Areal Flood Advisory	AMA	Hansford, Hutchinson, Ochiltree, Roberts	3 hr
May 23, 3:28 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Ochiltree	62 min
May 23, 3:49 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter, Randall	41 min
May 23, 4:07 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hansford, Hutchinson, Ochiltree, Roberts	53 min
May 23, 4:26 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Hartley, Oldham, Potter, Randall	64 min
May 23, 4:40 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter, Randall	50 min
May 23, 4:56 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hutchinson, Ochiltree, Roberts	64 min
May 23, 5:09 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hutchinson, Moore, Potter	66 min
May 23, 5:13 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley, Moore, Sherman	46 min
May 23, 5:22 PM CDT	Areal Flood Advisory	AMA	Potter, Randall	3 hr
May 23, 5:22 PM CDT	Tornado Warning	AMA	Hansford, Hutchinson, Ochiltree, Roberts	38 min
May 23, 5:27 PM CDT	Special Weather Statement	AMA	Carson	33 min
May 23, 5:28 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hutchinson, Moore, Potter, Randall	48 min
May 23, 5:47 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Deaf Smith, Oldham, Potter, Randall	58 min
May 23, 5:52 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Gray, Hansford, Hutchinson, Roberts	38 min
May 23, 5:55 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hutchinson, Lipscomb, Ochiltree, Roberts	65 min
May 23, 5:57 PM CDT	Areal Flood Advisory	AMA	Hansford, Hutchinson, Ochiltree, Roberts	3 hr
May 23, 6:01 PM CDT	Tornado Warning	AMA	Carson, Gray, Hemphill, Hutchinson, Roberts	44 min
May 23, 6:08 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Gray, Hutchinson, Roberts	67 min
May 23, 6:15 PM CDT	Tornado Warning	AMA	Lipscomb, Ochiltree	45 min
May 23, 6:39 PM CDT	Severe Thunderstorm Warning	AMA	Hemphill, Lipscomb, Ochiltree, Roberts	66 min
May 23, 6:44 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb, Ochiltree	76 min
May 23, 6:44 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Potter, Randall	61 min
May 23, 6:55 PM CDT	Severe Thunderstorm Warning	AMA	Gray, Hemphill, Ochiltree, Roberts	65 min
May 23, 8:09 AM CDT	Special Weather Statement	AMA	Texas	36 min
May 23, 9:22 AM CDT	Special Weather Statement	AMA	Cimarron	38 min
May 23, 9:40 AM CDT	Severe Thunderstorm Warning	AMA	Texas	35 min
May 23, 10:13 AM CDT	Severe Thunderstorm Warning	AMA	Texas	47 min
May 23, 2:31 PM CDT	Special Weather Statement	AMA	Texas	29 min
May 23, 2:33 PM CDT	Special Weather Statement	AMA	Beaver	27 min
May 23, 4:24 PM CDT	Tornado Warning	AMA	Beaver	51 min
May 23, 6:18 PM CDT	Severe Thunderstorm Warning	AMA	Cimarron, Texas	18 min

Nearby

Severe Thunderstorm Warnings in Texas, 2019 Severe Thunderstorm Warnings in Oklahoma, 2019 Every severe thunderstorm warning in 2019

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.