Alert archive / Texas / Severe Thunderstorm Watches in 2015

Severe Thunderstorm Watch 76

April 18, 201526 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Apr 18, 2015, 5:46 PM CDT for 26 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Apr 18, 2015, 5:46 PM CDT (22:46 UTC)
Expired
Apr 18, 2015, 10:19 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 26 counties

Anderson County, TX, Bell County, TX, Collin County, TX, Cooke County, TX, Dallas County, TX, Denton County, TX, Ellis County, TX, Falls County, TX, Fannin County, TX, Freestone County, TX, Grayson County, TX, Henderson County, TX, Hill County, TX, Hunt County, TX, Johnson County, TX, Kaufman County, TX, Leon County, TX, Limestone County, TX, McLennan County, TX, Milam County, TX, Navarro County, TX, Rains County, TX, Robertson County, TX, Rockwall County, TX, Tarrant County, TX, Van Zandt County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 11 km from the middle of the area, began a volume at 22:48 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
20%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
70%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
90%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 18, 6:53 PM CDTSevere Thunderstorm WarningFWDJohnson, Tarrant52 min
Apr 18, 7:44 PM CDTSevere Thunderstorm WarningFWDDallas, Ellis, Johnson, Tarrant61 min
Apr 18, 7:46 PM CDTSevere Thunderstorm WarningFWDDenton59 min
Apr 18, 7:58 PM CDTFlash Flood WarningFWDDenton3 hr
Apr 18, 8:12 PM CDTSevere Thunderstorm WarningFWDCollin63 min
Apr 18, 8:19 PM CDTSevere Thunderstorm WarningFWDNavarro56 min
Apr 18, 8:37 PM CDTSevere Thunderstorm WarningFWDKaufman, Rockwall53 min
Apr 18, 8:50 PM CDTSevere Thunderstorm WarningFWDHenderson55 min
Apr 18, 9:17 PM CDTSevere Thunderstorm WarningFWDKaufman, Van Zandt58 min
Apr 18, 9:25 PM CDTSevere Thunderstorm WarningFWDHenderson49 min

Discussions around it

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

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 17, 7:26 PM CDTMesoscale DiscussionSPCCarson, Hansford, Hutchinson, Ochiltree, Roberts2 hr
Apr 17, 7:39 PM CDTMesoscale DiscussionSPCChambers, Galveston, Jefferson96 min
Apr 17, 9:10 PM CDTMesoscale DiscussionSPCAransas, Brooks, Calhoun, Duval, Hidalgo, Jim Hogg and 7 more95 min
Apr 17, 9:13 PM CDTSevere Thunderstorm WatchSPCBrazoria, Chambers, Fort Bend, Galveston, Hardin, Harris and 4 more5 hr
Apr 17, 10:59 PM CDTMesoscale DiscussionSPCAransas, Brooks, Hidalgo, Kenedy, Kleberg, Nueces91 min
Apr 17, 11:31 PM CDTMesoscale DiscussionSPCChambers, Galveston, Jefferson, Orange59 min
Apr 18, 1:52 PM CDTMesoscale DiscussionSPCArcher, Baylor, Brown, Callahan, Clay, Coleman and 23 more113 min
Apr 18, 2:13 PM CDTSevere Thunderstorm WatchSPCBandera, Bastrop, Bexar, Blanco, Bosque, Brown and 58 more8 hr
Apr 18, 2:27 PM CDTTornado WatchSPCArcher, Baylor, Childress, Clay, Collingsworth, Cottle and 9 more6 hr
Apr 18, 4:32 PM CDTMesoscale DiscussionSPCAtascosa, Bastrop, Bexar, Caldwell, Comal, Dimmit and 11 more2 hr
Apr 18, 4:48 PM CDTMesoscale DiscussionSPCHidalgo, Kenedy, Kleberg, Willacy2 hr
Apr 18, 5:23 PM CDTMesoscale DiscussionSPCCollin, Dallas, Ellis, Falls, Hill, Kaufman and 6 more3 hr
Apr 18, 6:03 PM CDTMesoscale DiscussionSPCBaylor, Childress, Collingsworth, Cottle, Foard, Hardeman and 3 more87 min
Apr 18, 6:40 PM CDTMesoscale DiscussionSPCBandera, Bell, Blanco, Bosque, Brown, Burnet and 48 more95 min

Nearby

Severe Thunderstorm Watches in Texas, 2015Every severe thunderstorm 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; radar from the NEXRAD Level II archive.