Alert archive / Texas / Tornado Watches in 2019

Tornado Watch 180

May 18, 201915 counties in Oklahoma; 60 counties in Texas

The Storm Prediction Center issued this tornado watch at May 18, 2019, 2:20 AM CDT for 15 counties in Oklahoma; 60 counties in Texas. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
May 18, 2019, 2:20 AM CDT (07:20 UTC)
Expired
May 18, 2019, 10:00 AM CDT
In force
8 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
65 kt
All 75 counties

Carter County, OK, Cleveland County, OK, Comanche County, OK, Cotton County, OK, Garvin County, OK, Grady County, OK, Harmon County, OK, Jackson County, OK, Jefferson County, OK, Love County, OK, McClain County, OK, Murray County, OK, Pottawatomie County, OK, Stephens County, OK, Tillman County, OK, Archer County, TX, Baylor County, TX, Borden County, TX, Brown County, TX, Callahan County, TX, Childress County, TX, Clay County, TX, Coke County, TX, Coleman County, TX, Comanche County, TX, Concho County, TX, Cottle County, TX, Crane County, TX, Crockett County, TX, Dickens County, TX, Eastland County, TX, Ector County, TX, Erath County, TX, Fisher County, TX, Foard County, TX, Garza County, TX, Glasscock County, TX, Hardeman County, TX, Haskell County, TX, Howard County, TX, Irion County, TX, Jack County, TX, Jones County, TX, Kent County, TX, Kimble County, TX, King County, TX, Knox County, TX, Martin County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Midland County, TX, Mills County, TX, Mitchell County, TX, Montague County, TX, Motley County, TX, Nolan County, TX, Palo Pinto County, TX, Reagan County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Scurry County, TX, Shackelford County, TX, Stephens County, TX, Sterling County, TX, Stonewall County, TX, Sutton County, TX, Taylor County, TX, Throckmorton County, TX, Tom Green County, TX, Upton County, TX, Wichita County, TX, Wilbarger County, TX, Young County, TX

The radar

The Dyess AFB radar (KDYX), 66 km from the middle of the area, began a volume at 07:19 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
30%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
70%
One or more gusts of 65 knots or more
30%
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
90%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 18, 2:36 AM CDTSevere Thunderstorm WarningMAFReagan39 min
May 18, 2:56 AM CDTSevere Thunderstorm WarningMAFAndrews, Ector, Martin64 min
May 18, 3:57 AM CDTSevere Thunderstorm WarningSJTIrion48 min
May 18, 3:59 AM CDTSevere Thunderstorm WarningMAFBorden, Dawson, Howard, Martin, Mitchell, Scurry61 min
May 18, 4:49 AM CDTTornado WarningSJTIrion, Tom Green26 min
May 18, 4:57 AM CDTSevere Thunderstorm WarningMAFBorden, Glasscock, Howard, Mitchell, Scurry63 min
May 18, 5:08 AM CDTTornado WarningSJTTom Green22 min
May 18, 5:15 AM CDTSevere Thunderstorm WarningSJTCoke, Runnels, Tom Green45 min
May 18, 5:16 AM CDTSevere Thunderstorm WarningOUNBaylor, Foard, Wilbarger44 min
May 18, 5:21 AM CDTTornado WarningSJTTom Green24 min
May 18, 5:39 AM CDTTornado WarningSJTTom Green51 min
May 18, 5:40 AM CDTSevere Thunderstorm WarningSJTCallahan, Jones, Shackelford, Taylor65 min
May 18, 5:45 AM CDTTornado WarningSJTJones, Taylor45 min
May 18, 5:48 AM CDTSevere Thunderstorm WarningSJTFisher, Jones57 min
May 18, 5:57 AM CDTSevere Thunderstorm WarningOUNBaylor, Foard, Knox, Wilbarger33 min
May 18, 5:58 AM CDTSevere Thunderstorm WarningSJTCoke, Runnels, Tom Green62 min
May 18, 6:15 AM CDTTornado WarningSJTJones, Shackelford30 min
May 18, 6:36 AM CDTSevere Thunderstorm WarningSJTCoke39 min
May 18, 6:42 AM CDTSevere Thunderstorm WarningOUNCaddo, Comanche, Grady48 min
May 18, 6:42 AM CDTSevere Thunderstorm WarningSJTCoke, Concho, Runnels, Tom Green63 min
May 18, 6:45 AM CDTSevere Thunderstorm WarningOUNComanche, Cotton30 min
May 18, 6:52 AM CDTSevere Thunderstorm WarningOUNCanadian, Cleveland, Grady, McClain, Oklahoma38 min
May 18, 6:55 AM CDTTornado WarningSJTConcho, Runnels35 min
May 18, 7:05 AM CDTSevere Thunderstorm WarningSJTShackelford, Throckmorton55 min
May 18, 7:06 AM CDTTornado Warning Tornado observedSJTRunnels24 min
May 18, 7:10 AM CDTSevere Thunderstorm WarningSJTIrion, Sterling, Tom Green65 min
May 18, 7:19 AM CDTTornado Warning Tornado observedConsiderable damage threatSJTRunnels41 min
May 18, 7:30 AM CDTSevere Thunderstorm WarningOUNCleveland, Logan, Oklahoma45 min
May 18, 7:32 AM CDTSevere Thunderstorm WarningOUNCaddo, Comanche, Kiowa43 min
May 18, 7:37 AM CDTTornado WarningOUNComanche24 min
May 18, 7:38 AM CDTSevere Thunderstorm WarningSJTColeman, Runnels67 min
May 18, 7:45 AM CDTSevere Thunderstorm WarningSJTCoke, Nolan, Runnels, Taylor45 min
May 18, 7:49 AM CDTTornado WarningSJTColeman, Runnels25 min
May 18, 7:51 AM CDTSevere Thunderstorm WarningFWDStephens, Young54 min
May 18, 7:56 AM CDTFlash Flood WarningOUNCaddo, Comanche, Grady, Stephens3 hr
May 18, 7:58 AM CDTSevere Thunderstorm WarningOUNCaddo, Canadian, Grady, Kiowa, Washita47 min
May 18, 7:59 AM CDTSevere Thunderstorm WarningOUNCanadian, Grady46 min
May 18, 8:04 AM CDTFlash Flood WarningOUNCanadian, Cleveland, Grady, McClain, Oklahoma3 hr
May 18, 8:09 AM CDTSevere Thunderstorm WarningSJTCallahan, Coleman, Runnels, Taylor51 min
May 18, 8:10 AM CDTTornado WarningFWDYoung20 min
May 18, 8:25 AM CDTTornado WarningSJTColeman35 min
May 18, 8:33 AM CDTFlash Flood WarningSJTTom Green117 min
May 18, 8:34 AM CDTTornado Warning Tornado observedConsiderable damage threatSJTColeman26 min
May 18, 8:40 AM CDTFlash Flood WarningSJTRunnels3 hr
May 18, 8:52 AM CDTTornado Warning Tornado observedSJTCallahan23 min
May 18, 8:53 AM CDTSevere Thunderstorm WarningOUNCleveland, Lincoln, Oklahoma, Pottawatomie52 min
May 18, 9:03 AM CDTSevere Thunderstorm WarningSJTCallahan, Coleman57 min
May 18, 9:05 AM CDTSevere Thunderstorm WarningOUNCarter, Garvin, Jefferson, McClain, Murray, Stephens40 min
May 18, 9:24 AM CDTSevere Thunderstorm WarningSJTBrown66 min
May 18, 9:30 AM CDTSevere Thunderstorm WarningFWDEastland60 min
May 18, 9:32 AM CDTSevere Thunderstorm WarningOUNGarvin, McClain, Pontotoc, Pottawatomie, Seminole43 min
May 18, 9:46 AM CDTSevere Thunderstorm WarningOUNCarter, Garvin, Johnston, Murray, Pontotoc44 min
May 18, 9:47 AM CDTFlash Flood WarningSJTBrown, Callahan, Coleman, Runnels3 hr
May 18, 9:57 AM CDTSevere Thunderstorm WarningSJTColeman48 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

Fort Worth, TX (KFWD), launched 00:00Z, 7.3 hours before the alert went out and 168 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-pSkew-T log-p diagram, Fort Worth, TX at 00:00Z on 2019-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1123 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 00:00Z on 2019-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1123 J/kg
Mixed-layer CIN
-131 J/kg
Mixed-layer LCL
1440 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
204 m²/s²
Significant tornado parameter
0.1
Supercell composite
3.6

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 17, 7:00 PM CDTMesoscale DiscussionSPCBeaver2 hr
May 18, 1:35 AM CDTMesoscale DiscussionSPCCarter, Comanche, Cotton, Garvin, Grady, Jefferson and 2 more2 hr
May 18, 5:11 AM CDTMesoscale DiscussionSPCCarter, Comanche, Cotton, Garvin, Jefferson, Love and 3 more2 hr
May 18, 6:51 AM CDTMesoscale DiscussionSPCCarter, Cleveland, Coal, Cotton, Garvin, Grady and 11 more114 min
May 18, 7:47 AM CDTMesoscale DiscussionSPCAlfalfa, Blaine, Caddo, Canadian, Cleveland, Creek and 18 more88 min
May 18, 9:10 AM CDTTornado WatchSPCAdair, Atoka, Bryan, Cherokee, Choctaw, Coal and 27 more8 hr
May 18, 9:38 AM CDTMesoscale DiscussionSPCCraig, Creek, Delaware, Mayes, Nowata, Osage and 5 more2 hr
May 18, 12:11 PM CDTMesoscale DiscussionSPCChoctaw, Latimer, LeFlore, McCurtain, Pushmataha64 min
May 18, 12:47 PM CDTMesoscale DiscussionSPCAdair, Sequoyah88 min
May 18, 12:48 PM CDTTornado WatchSPCMcCurtain7 hr
May 18, 3:31 PM CDTMesoscale DiscussionSPCAlfalfa, Dewey, Ellis, Garfield, Grant, Harper and 3 more119 min
May 18, 3:48 PM CDTSevere Thunderstorm WatchSPCAlfalfa, Beaver, Blaine, Ellis, Garfield, Grant and 5 more6 hr
May 18, 6:07 PM CDTMesoscale DiscussionSPCAlfalfa, Beaver, Dewey, Ellis, Garfield, Grant and 6 more83 min
May 17, 9:20 PM CDTMesoscale DiscussionSPCCrockett, Irion, Reagan, Schleicher, Sutton, Terrell and 1 more85 min
May 17, 11:47 PM CDTMesoscale DiscussionSPCBorden, Brown, Callahan, Coke, Coleman, Concho and 34 more2 hr
May 18, 1:16 PM CDTTornado WatchSPCAnderson, Bastrop, Bell, Blanco, Brazos, Burleson and 19 more9 hr
May 18, 5:16 PM CDTMesoscale DiscussionSPCAngelina, Grimes, Houston, Jasper, Nacogdoches, Newton and 9 more119 min
May 18, 6:37 PM CDTMesoscale DiscussionSPCCooke, Dallas, Denton, Parker, Tarrant, Wise53 min

Nearby

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