Alert archive / Texas / Tornado Watches in 2019

Tornado Watch 144

May 7, 2019Beaver County, Texas County, Oklahoma; 19 counties in Texas

The Storm Prediction Center issued this tornado watch at May 7, 2019, 1:28 PM CDT for Beaver County, Texas County, Oklahoma; 19 counties in Texas. It was in force for 9 hr.

The area

The outline as issued.

The facts

Issued: May 7, 2019, 1:28 PM CDT (18:28 UTC)
Expired: May 7, 2019, 10:00 PM CDT
In force: 9 hr
Issued by: the Storm Prediction Center
Largest hail expected: 3 in
Strongest gust expected: 65 kt

All 21 counties

Beaver County, OK, Texas County, OK, Armstrong County, TX, Carson County, TX, Collingsworth County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 106 km from the middle of the area, began a volume at 18:29 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes: 80%
One or more EF2 to EF5 tornadoes: 70%
Ten or more severe wind reports: 50%
One or more gusts of 65 knots or more: 50%
Ten or more severe hail reports: 70%
One or more hailstones of 2 inches or more: 70%
Six or more combined severe hail and wind reports: 95%

Warnings issued inside it

49 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
May 7, 1:32 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hutchinson, Moore, Potter	73 min
May 7, 1:52 PM CDT	Severe Thunderstorm Warning	AMA	Moore, Potter	53 min
May 7, 2:10 PM CDT	Severe Thunderstorm Warning	AMA	Hutchinson	65 min
May 7, 2:13 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter	47 min
May 7, 2:30 PM CDT	Severe Thunderstorm Warning	AMA	Beaver, Texas	60 min
May 7, 2:41 PM CDT	Severe Thunderstorm Warning	AMA	Moore, Potter	64 min
May 7, 2:45 PM CDT	Severe Thunderstorm Warning	AMA	Oldham, Potter	31 min
May 7, 2:49 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham	41 min
May 7, 3:06 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hutchinson	69 min
May 7, 3:12 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter, Randall	48 min
May 7, 3:27 PM CDT	Severe Thunderstorm Warning	AMA	Beaver, Texas	63 min
May 7, 3:27 PM CDT	Severe Thunderstorm Warning	AMA	Oldham, Potter	63 min
May 7, 3:43 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hutchinson, Ochiltree	77 min
May 7, 3:43 PM CDT	Tornado Warning	AMA	Carson, Potter	47 min
May 7, 3:48 PM CDT	Tornado Warning Tornado observed	AMA	Hansford, Hutchinson, Ochiltree	26 min
May 7, 3:53 PM CDT	Severe Thunderstorm Warning	AMA	Hutchinson, Moore, Potter	67 min
May 7, 3:56 PM CDT	Severe Thunderstorm Warning	AMA	Potter	49 min
May 7, 3:57 PM CDT	Tornado Warning	AMA	Potter	33 min
May 7, 4:00 PM CDT	Flash Flood Warning	AMA	Hutchinson, Moore, Potter	3 hr
May 7, 4:04 PM CDT	Tornado Warning	AMA	Beaver	29 min
May 7, 4:11 PM CDT	Tornado Warning	AMA	Ochiltree	34 min
May 7, 4:17 PM CDT	Severe Thunderstorm Warning	AMA	Potter, Randall	28 min
May 7, 4:24 PM CDT	Tornado Warning	AMA	Carson, Potter	51 min
May 7, 4:37 PM CDT	Severe Thunderstorm Warning	AMA	Potter, Randall	38 min
May 7, 4:42 PM CDT	Tornado Warning	AMA	Hutchinson	48 min
May 7, 5:11 PM CDT	Tornado Warning	AMA	Hutchinson, Roberts	49 min
May 7, 5:14 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hutchinson, Moore, Potter	61 min
May 7, 5:26 PM CDT	Severe Thunderstorm Warning	AMA	Hemphill, Wheeler	64 min
May 7, 5:35 PM CDT	Tornado Warning	AMA	Ochiltree	40 min
May 7, 5:42 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hutchinson	33 min
May 7, 6:00 PM CDT	Severe Thunderstorm Warning	AMA	Moore, Sherman	26 min
May 7, 6:12 PM CDT	Tornado Warning	AMA	Armstrong, Donley, Randall	48 min
May 7, 6:28 PM CDT	Severe Thunderstorm Warning	AMA	Hemphill, Lipscomb	77 min
May 7, 6:36 PM CDT	Tornado Warning	AMA	Hemphill, Wheeler	39 min
May 7, 6:42 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	49 min
May 7, 6:43 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hutchinson, Ochiltree, Roberts	41 min
May 7, 6:50 PM CDT	Tornado Warning	AMA	Armstrong, Donley	19 min
May 7, 6:52 PM CDT	Tornado Warning	AMA	Lipscomb, Ochiltree	38 min
May 7, 6:57 PM CDT	Tornado Warning	AMA	Armstrong, Donley	48 min
May 7, 7:06 PM CDT	Tornado Warning	AMA	Beaver	24 min
May 7, 7:32 PM CDT	Tornado Warning	AMA	Armstrong, Collingsworth, Donley, Gray, Wheeler	43 min
May 7, 7:38 PM CDT	Severe Thunderstorm Warning	AMA	Potter, Randall	40 min
May 7, 7:38 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth, Wheeler	48 min
May 7, 7:47 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth	34 min
May 7, 7:59 PM CDT	Tornado Warning	AMA	Collingsworth, Wheeler	16 min
May 7, 8:07 PM CDT	Tornado Warning	AMA	Gray, Hemphill, Roberts, Wheeler	12 min
May 7, 8:13 PM CDT	Severe Thunderstorm Warning	AMA	Hemphill, Lipscomb, Wheeler	17 min
May 7, 8:44 PM CDT	Severe Thunderstorm Warning	AMA	Potter, Randall	48 min
May 7, 9:00 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth, Wheeler	16 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 6.5 hours before the alert went out and 106 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: 334 J/kg
Mixed-layer CIN: -280 J/kg
Mixed-layer LCL: 2060 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 6, 8:50 PM CDT	Mesoscale Discussion	SPC	Beaver, Harper, Texas, Woods	55 min
May 6, 10:18 PM CDT	Mesoscale Discussion	SPC	Craig, Nowata, Ottawa	57 min
May 6, 11:50 PM CDT	Mesoscale Discussion	SPC	Craig, Delaware, Mayes	55 min
May 7, 11:04 AM CDT	Mesoscale Discussion	SPC	Beaver, Harper, Texas	116 min
May 7, 2:11 PM CDT	Mesoscale Discussion	SPC	Grant, Kay	2 hr
May 7, 3:31 PM CDT	Tornado Watch	SPC	Alfalfa, Ellis, Grant, Harper, Kay, Woods and 1 more	6 hr
May 7, 3:41 PM CDT	Mesoscale Discussion	SPC	Beaver	94 min
May 7, 4:47 PM CDT	Tornado Watch	SPC	Cimarron	5 hr
May 7, 5:24 PM CDT	Mesoscale Discussion	SPC	Beckham, Custer, Dewey, Ellis, Greer, Kiowa and 3 more	66 min
May 7, 5:36 PM CDT	Mesoscale Discussion	SPC	Beaver, Texas	54 min
May 7, 5:38 PM CDT	Tornado Watch	SPC	Beckham, Blaine, Caddo, Canadian, Custer, Dewey and 11 more	4 hr
May 7, 6:01 PM CDT	Mesoscale Discussion	SPC	Alfalfa, Grant, Harper, Woods	89 min
May 7, 1:39 PM CDT	Mesoscale Discussion	SPC	Andrews, Crane, Ector, Howard, Martin, Midland and 3 more	2 hr
May 7, 2:22 PM CDT	Mesoscale Discussion	SPC	Bailey, Briscoe, Castro, Cochran, Crosby, Dawson and 12 more	83 min
May 7, 3:00 PM CDT	Tornado Watch	SPC	Andrews, Bailey, Borden, Briscoe, Castro, Childress and 43 more	8 hr
May 7, 5:01 PM CDT	Mesoscale Discussion	SPC	Andrews, Borden, Coke, Crane, Crockett, Dawson and 23 more	89 min

Nearby

Tornado Watches in Texas, 2019 Tornado Watches in Oklahoma, 2019 Every tornado watch 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.