Alert archive / Texas / Tornado Watches in 2015

Tornado Watch 100

April 24, 201558 counties in Texas

The Storm Prediction Center issued this tornado watch at Apr 24, 2015, 2:10 PM CDT for 58 counties in Texas. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Apr 24, 2015, 2:10 PM CDT (19:10 UTC)
Expired
Apr 24, 2015, 10:00 PM CDT
In force
8 hr
Issued by
the Storm Prediction Center
Largest hail expected
3 in
Strongest gust expected
65 kt
All 58 counties

Anderson County, TX, Bell County, TX, Bosque County, TX, Brown County, TX, Callahan County, TX, Coke County, TX, Coleman County, TX, Collin County, TX, Comanche County, TX, Concho County, TX, Coryell County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Eastland County, TX, Ellis County, TX, Erath County, TX, Falls County, TX, Fisher County, TX, Freestone County, TX, Hamilton County, TX, Haskell County, TX, Henderson County, TX, Hill County, TX, Hood County, TX, Hopkins County, TX, Hunt County, TX, Irion County, TX, Jack County, TX, Johnson County, TX, Jones County, TX, Kaufman County, TX, Lampasas County, TX, Limestone County, TX, McCulloch County, TX, McLennan County, TX, Menard County, TX, Mills County, TX, Navarro County, TX, Nolan County, TX, Palo Pinto County, TX, Parker County, TX, Rains County, TX, Rockwall County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Shackelford County, TX, Somervell County, TX, Stephens County, TX, Sterling County, TX, Tarrant County, TX, Taylor County, TX, Throckmorton County, TX, Tom Green County, TX, Van Zandt County, TX, Wise County, TX, Young County, TX

The radar

The Dyess AFB radar (KDYX), 54 km from the middle of the area, began a volume at 19:12 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
40%
Ten or more severe wind reports
50%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
70%
One or more hailstones of 2 inches or more
60%
Six or more combined severe hail and wind reports
90%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 24, 2:31 PM CDTSevere Thunderstorm WarningSJTCoke, Nolan, Runnels44 min
Apr 24, 2:59 PM CDTSevere Thunderstorm WarningSJTCoke, Runnels, Taylor46 min
Apr 24, 3:15 PM CDTSevere Thunderstorm WarningSJTCoke, Runnels45 min
Apr 24, 3:30 PM CDTSevere Thunderstorm WarningSJTCallahan, Coleman, Runnels, Taylor45 min
Apr 24, 3:36 PM CDTTornado WarningSJTCallahan, Coleman, Runnels, Taylor24 min
Apr 24, 3:45 PM CDTSevere Thunderstorm WarningSJTColeman, Runnels30 min
Apr 24, 3:56 PM CDTTornado WarningSJTBrown, Callahan, Coleman49 min
Apr 24, 4:00 PM CDTSevere Thunderstorm WarningSJTIrion, Tom Green45 min
Apr 24, 4:09 PM CDTSevere Thunderstorm WarningSJTBrown, Callahan, Coleman51 min
Apr 24, 4:25 PM CDTSevere Thunderstorm WarningSJTColeman, Concho, Runnels, Tom Green50 min
Apr 24, 4:27 PM CDTSevere Thunderstorm WarningFWDComanche, Eastland63 min
Apr 24, 4:50 PM CDTTornado WarningFWDComanche, Eastland25 min
Apr 24, 5:03 PM CDTSevere Thunderstorm WarningFWDErath57 min
Apr 24, 5:05 PM CDTSevere Thunderstorm WarningSJTBrown, Coleman40 min
Apr 24, 5:37 PM CDTSevere Thunderstorm WarningFWDErath, Hood, Somervell53 min
Apr 24, 6:03 PM CDTSevere Thunderstorm WarningFWDJohnson, Parker, Tarrant57 min
Apr 24, 6:09 PM CDTFlash Flood WarningFWDDenton2 hr
Apr 24, 6:28 PM CDTTornado WarningFWDTarrant19 min
Apr 24, 6:38 PM CDTSevere Thunderstorm WarningFWDDallas, Ellis67 min
Apr 24, 6:43 PM CDTTornado WarningFWDEllis, Johnson32 min
Apr 24, 7:17 PM CDTSevere Thunderstorm WarningFWDKaufman, Van Zandt58 min
Apr 24, 7:17 PM CDTSevere Thunderstorm WarningSJTMcCulloch, Mason, Menard, San Saba43 min
Apr 24, 7:51 PM CDTSevere Thunderstorm WarningFWDHopkins, Rains54 min
Apr 24, 8:13 PM CDTSevere Thunderstorm WarningFWDVan Zandt47 min
Apr 24, 8:57 PM CDTSevere Thunderstorm WarningFWDFreestone, Limestone, Navarro49 min
Apr 24, 9:38 PM CDTSevere Thunderstorm WarningFWDAnderson, Henderson37 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 12:00Z, 7.2 hours before the alert went out and 172 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 12:00Z on 2015-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1508 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 12:00Z on 2015-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 145 square meters per square second.1939587897117Sfc1 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
1508 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
506 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
145 m²/s²
0-3 km storm-relative helicity
309 m²/s²
Significant tornado parameter
1.2
Supercell composite
4.6

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 23, 9:34 PM CDTMesoscale DiscussionSPCBandera, Dimmit, Edwards, Frio, Jim Hogg, Kinney and 10 more56 min
Apr 24, 2:36 AM CDTMesoscale DiscussionSPCDimmit, La Salle, McMullen, Webb, Zavala84 min
Apr 24, 3:01 AM CDTSevere Thunderstorm WatchSPCAtascosa, Dimmit, Frio, La Salle, Live Oak, McMullen and 5 more4 hr
Apr 24, 5:41 AM CDTMesoscale DiscussionSPCAtascosa, Bandera, Dimmit, Duval, Edwards, Frio and 10 more94 min
Apr 24, 10:29 AM CDTMesoscale DiscussionSPCHardin, Jasper, Liberty, Newton, Orange, Tyler91 min
Apr 24, 11:12 AM CDTMesoscale DiscussionSPCBosque, Brown, Callahan, Coke, Coleman, Collin and 43 more2 hr
Apr 24, 11:53 AM CDTMesoscale DiscussionSPCHardin, Jefferson, Newton, Orange97 min
Apr 24, 12:18 PM CDTTornado WatchSPCJasper, Newton, Orange5 hr
Apr 24, 12:56 PM CDTMesoscale DiscussionSPCChildress, Collingsworth, Cottle, Crosby, Dickens, Foard and 3 more94 min
Apr 24, 3:58 PM CDTMesoscale DiscussionSPCAngelina, Camp, Cass, Cherokee, Gregg, Harrison and 16 more92 min
Apr 24, 4:45 PM CDTTornado WatchSPCAngelina, Bowie, Camp, Cass, Cherokee, Franklin and 20 more5 hr
Apr 24, 4:56 PM CDTMesoscale DiscussionSPCAtascosa, Dimmit, Duval, Frio, Jim Hogg, Kinney and 9 more94 min
Apr 24, 6:01 PM CDTMesoscale DiscussionSPCDallas, Ellis, Erath, Hood, Johnson, Kaufman and 3 more59 min
Apr 24, 6:53 PM CDTSevere Thunderstorm WatchSPCAtascosa, Bee, Brooks, Cameron, DeWitt, Dimmit and 19 more6 hr

Nearby

Tornado Watches in Texas, 2015Every tornado watch in 2015

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.