Alert archive / Texas / Severe Thunderstorm Watches in 2016

Severe Thunderstorm Watch 160

May 10, 201669 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 10, 2016, 2:39 PM CDT for 69 counties in Texas. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: May 10, 2016, 2:39 PM CDT (19:39 UTC)
Expired: May 10, 2016, 10:00 PM CDT
In force: 7 hr
Issued by: the Storm Prediction Center
Largest hail expected: 3 in
Strongest gust expected: 60 kt

All 69 counties

Bandera County, TX, Bell County, TX, Blanco County, TX, Bosque County, TX, Brown County, TX, Burnet County, TX, Callahan County, TX, Coleman County, TX, Collin County, TX, Comanche County, TX, Concho County, TX, Cooke County, TX, Coryell County, TX, Crockett County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Eastland County, TX, Edwards County, TX, Ellis County, TX, Erath County, TX, Falls County, TX, Fannin County, TX, Gillespie County, TX, Grayson County, TX, Hamilton County, TX, Hays County, TX, Hill County, TX, Hood County, TX, Hopkins County, TX, Hunt County, TX, Irion County, TX, Jack County, TX, Johnson County, TX, Kaufman County, TX, Kendall County, TX, Kerr County, TX, Kimble County, TX, Lamar County, TX, Lampasas County, TX, Limestone County, TX, Llano County, TX, Mason County, TX, McCulloch County, TX, McLennan County, TX, Menard County, TX, Milam County, TX, Mills County, TX, Montague County, TX, Navarro County, TX, Palo Pinto County, TX, Parker County, TX, Rains County, TX, Real County, TX, Rockwall County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Somervell County, TX, Stephens County, TX, Sutton County, TX, Tarrant County, TX, Taylor County, TX, Tom Green County, TX, Travis County, TX, Val Verde County, TX, Williamson County, TX, Wise County, TX, Young County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 91 km from the middle of the area, began a volume at 19:42 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: 10%
One or more EF2 to EF5 tornadoes: 2%
Ten or more severe wind reports: 50%
One or more gusts of 65 knots or more: 10%
Ten or more severe hail reports: 90%
One or more hailstones of 2 inches or more: 60%
Six or more combined severe hail and wind reports: 90%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
May 10, 3:32 PM CDT	Severe Thunderstorm Warning	SJT	Brown, Coleman, McCulloch, San Saba	58 min
May 10, 4:25 PM CDT	Severe Thunderstorm Warning	FWD	Comanche, Mills	65 min
May 10, 4:28 PM CDT	Severe Thunderstorm Warning	SJT	Brown, Coleman, McCulloch, San Saba	47 min
May 10, 4:31 PM CDT	Severe Thunderstorm Warning	SJT	Coleman, Concho, McCulloch, Menard	44 min
May 10, 4:43 PM CDT	Severe Thunderstorm Warning	SJT	Schleicher, Sutton	47 min
May 10, 4:52 PM CDT	Severe Thunderstorm Warning	FWD	Hamilton, Mills	53 min
May 10, 4:58 PM CDT	Severe Thunderstorm Warning	SJT	Coleman, Concho, Runnels	47 min
May 10, 5:11 PM CDT	Severe Thunderstorm Warning	SJT	Coleman, Concho, McCulloch	49 min
May 10, 5:14 PM CDT	Severe Thunderstorm Warning	SJT	Concho, Menard	46 min
May 10, 5:14 PM CDT	Severe Thunderstorm Warning	SJT	Brown, Coleman, McCulloch, San Saba	46 min
May 10, 5:15 PM CDT	Severe Thunderstorm Warning	FWD	Comanche, Eastland, Erath	60 min
May 10, 5:28 PM CDT	Severe Thunderstorm Warning	SJT	Schleicher, Sutton	47 min
May 10, 5:30 PM CDT	Flash Flood Warning	FWD	Mills	3 hr
May 10, 5:40 PM CDT	Severe Thunderstorm Warning	FWD	Hamilton, Mills	65 min
May 10, 5:48 PM CDT	Severe Thunderstorm Warning	FWD	Palo Pinto	57 min
May 10, 5:50 PM CDT	Severe Thunderstorm Warning	SJT	Concho, Tom Green	40 min
May 10, 5:56 PM CDT	Severe Thunderstorm Warning	SJT	Schleicher	49 min
May 10, 5:58 PM CDT	Severe Thunderstorm Warning	SJT	Brown, Coleman	62 min
May 10, 6:06 PM CDT	Severe Thunderstorm Warning	FWD	Hood, Parker	54 min
May 10, 6:27 PM CDT	Severe Thunderstorm Warning	FWD	Coryell, Lampasas	63 min
May 10, 6:30 PM CDT	Severe Thunderstorm Warning	SJT	Schleicher, Sutton	60 min
May 10, 6:37 PM CDT	Severe Thunderstorm Warning	FWD	Bosque, Hamilton	53 min
May 10, 6:53 PM CDT	Severe Thunderstorm Warning	FWD	Parker, Tarrant	67 min
May 10, 7:07 PM CDT	Severe Thunderstorm Warning	SJT	McCulloch, San Saba	38 min
May 10, 7:14 PM CDT	Severe Thunderstorm Warning	FWD	McLennan	76 min
May 10, 7:25 PM CDT	Severe Thunderstorm Warning	SJT	Menard, Schleicher	52 min
May 10, 7:28 PM CDT	Severe Thunderstorm Warning	FWD	Bosque	47 min
May 10, 7:47 PM CDT	Severe Thunderstorm Warning	SJT	San Saba	58 min
May 10, 7:53 PM CDT	Severe Thunderstorm Warning	FWD	Collin, Dallas, Denton, Tarrant	67 min
May 10, 7:57 PM CDT	Severe Thunderstorm Warning	FWD	Hill, Limestone, McLennan	63 min
May 10, 8:08 PM CDT	Severe Thunderstorm Warning	FWD	Lampasas	49 min
May 10, 8:32 PM CDT	Severe Thunderstorm Warning	SJT	Schleicher, Tom Green	43 min
May 10, 8:44 PM CDT	Severe Thunderstorm Warning	FWD	Falls, Freestone, Limestone, Navarro	61 min
May 10, 9:27 PM CDT	Severe Thunderstorm Warning	SJT	McCulloch, San Saba	63 min
May 10, 9:51 PM CDT	Severe Thunderstorm Warning	SJT	Irion, Tom Green	39 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, 7.7 hours before the alert went out and 110 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: 2081 J/kg
Mixed-layer CIN: -184 J/kg
Mixed-layer LCL: 996 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 399 m²/s²
0-3 km storm-relative helicity: 391 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 6.7

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 9, 7:23 PM CDT	Tornado Watch	SPC	Bowie, Camp, Cass, Franklin, Gregg, Harrison and 8 more	8 hr
May 9, 8:01 PM CDT	Mesoscale Discussion	SPC	Bowie, Cass, Lamar, Morris, Red River, Titus	89 min
May 9, 11:15 PM CDT	Mesoscale Discussion	SPC	Bowie, Cass, Morris, Titus	90 min
May 10, 1:56 PM CDT	Mesoscale Discussion	SPC	Bosque, Brown, Burnet, Coleman, Collin, Comanche and 45 more	2 hr
May 10, 6:39 PM CDT	Mesoscale Discussion	SPC	Bandera, Bell, Blanco, Bosque, Brown, Burnet and 61 more	96 min

Nearby

Severe Thunderstorm Watches in Texas, 2016 Every severe thunderstorm watch in 2016

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.