Alert archive / Texas / Tornado Watches in 2019

Tornado Watch 259

May 26, 20196 counties in Oklahoma; 26 counties in Texas

The Storm Prediction Center issued this tornado watch at May 26, 2019, 7:55 PM CDT for 6 counties in Oklahoma; 26 counties in Texas. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued: May 26, 2019, 7:55 PM CDT (00:55 UTC)
Expired: May 27, 2019, 4:00 AM CDT
In force: 8 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2 in
Strongest gust expected: 80 kt

All 32 counties

Beaver County, OK, Ellis County, OK, Harper County, OK, Roger Mills County, OK, Woods County, OK, Woodward County, OK, Armstrong County, TX, Bailey County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Cochran County, TX, Collingsworth County, TX, Donley County, TX, Floyd County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hansford County, TX, Hemphill County, TX, Hockley County, TX, Hutchinson County, TX, Lamb County, TX, Lipscomb County, TX, Lubbock County, TX, Ochiltree County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Swisher County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 52 km from the middle of the area, began a volume at 00:56 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: 60%
One or more EF2 to EF5 tornadoes: 30%
Ten or more severe wind reports: 80%
One or more gusts of 65 knots or more: 70%
Ten or more severe hail reports: 40%
One or more hailstones of 2 inches or more: 30%
Six or more combined severe hail and wind reports: 95%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
May 26, 8:05 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter, Randall	55 min
May 26, 8:40 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hansford, Hartley, Hutchinson, Moore, Sherman	65 min
May 26, 8:43 PM CDT	Tornado Warning	AMA	Hansford, Sherman	32 min
May 26, 8:50 PM CDT	Tornado Warning Considerable damage threat	LUB	Bailey, Lamb, Parmer	25 min
May 26, 8:52 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Deaf Smith, Oldham, Potter, Randall	53 min
May 26, 9:11 PM CDT	Tornado Warning Considerable damage threat	LUB	Bailey, Lamb, Parmer	49 min
May 26, 9:36 PM CDT	Severe Thunderstorm Warning	AMA	Beaver, Texas	54 min
May 26, 9:42 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Potter, Randall	63 min
May 26, 9:46 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Randall	29 min
May 26, 9:59 PM CDT	Tornado Warning Tornado observed	LUB	Castro, Hale, Lamb, Parmer, Swisher	31 min
May 26, 10:29 PM CDT	Tornado Warning Tornado observed	LUB	Briscoe, Castro, Swisher	61 min
May 26, 10:38 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	53 min
May 26, 10:53 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper	37 min
May 26, 11:12 PM CDT	Severe Thunderstorm Warning	AMA	Gray, Hemphill, Lipscomb, Ochiltree, Roberts, Wheeler	63 min
May 26, 11:13 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Collingsworth, Donley, Gray, Wheeler	62 min
May 26, 11:14 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Moore, Oldham, Potter	61 min
May 26, 11:21 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Donley, Randall	54 min
May 26, 11:24 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Woods, Woodward	51 min
May 26, 11:27 PM CDT	Tornado Warning	AMA	Oldham, Potter	28 min
May 26, 11:28 PM CDT	Severe Thunderstorm Warning	LUB	Swisher	26 min
May 27, 12:00 AM CDT	Tornado Warning	AMA	Moore, Oldham, Potter	22 min
May 27, 12:06 AM CDT	Tornado Warning	AMA	Hartley, Oldham, Potter	39 min
May 27, 12:13 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Ellis, Harper, Major, Woods, Woodward	47 min
May 27, 12:19 AM CDT	Severe Thunderstorm Warning	AMA	Hartley, Moore, Oldham, Potter, Sherman	37 min
May 27, 12:20 AM CDT	Severe Thunderstorm Warning	AMA	Carson, Hutchinson, Moore, Potter	55 min
May 27, 12:40 AM CDT	Tornado Warning	AMA	Moore, Oldham, Potter	34 min
May 27, 12:53 AM CDT	Severe Thunderstorm Warning	AMA	Carson, Hutchinson, Moore, Potter	52 min
May 27, 12:56 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Grant, Woods, Woodward	49 min
May 27, 1:10 AM CDT	Severe Thunderstorm Warning	AMA	Carson, Hansford, Hutchinson, Moore, Ochiltree, Roberts	65 min
May 27, 1:13 AM CDT	Tornado Warning	AMA	Carson, Hutchinson, Moore, Potter	25 min
May 27, 1:32 AM CDT	Severe Thunderstorm Warning	AMA	Carson, Gray, Hansford, Hutchinson, Moore, Ochiltree and 2 more	43 min
May 27, 1:42 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Major, Woods	48 min
May 27, 1:50 AM CDT	Severe Thunderstorm Warning	AMA	Beaver	55 min
May 27, 2:21 AM CDT	Severe Thunderstorm Warning	OUN	Ellis	39 min
May 27, 2:40 AM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Woodward	50 min
May 27, 3:02 AM CDT	Severe Thunderstorm Warning	OUN	Ellis, Woodward	28 min
May 27, 3:15 AM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Woods, Woodward	45 min
May 27, 4:00 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Major, Woods, Woodward	45 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 00:00Z, 0.9 hours before the alert went out and 52 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: 1501 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 659 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 103 m²/s²
0-3 km storm-relative helicity: 219 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 4.6

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 26, 11:23 PM CDT	Severe Thunderstorm Watch	SPC	Alfalfa, Garfield, Grant, Kay, Major	6 hr
May 27, 1:54 AM CDT	Mesoscale Discussion	SPC	Kay, Noble, Nowata, Osage, Washington	111 min
May 27, 12:49 AM CDT	Mesoscale Discussion	SPC	Carson, Gray, Hansford, Hutchinson, Moore, Ochiltree and 3 more	86 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.