Alert archive / Texas / Severe Thunderstorm Watches in 2016

Severe Thunderstorm Watch 180

May 17, 201640 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 17, 2016, 2:25 PM CDT for 40 counties in Texas. It was in force for 13 hr.

The area

The outline as issued.

The facts

Issued
May 17, 2016, 2:25 PM CDT (19:25 UTC)
Expired
May 18, 2016, 3:00 AM CDT
In force
13 hr
Issued by
the Storm Prediction Center
Largest hail expected
2.5 in
Strongest gust expected
60 kt
All 40 counties

Atascosa County, TX, Bandera County, TX, Bexar County, TX, Blanco County, TX, Brewster County, TX, Comal County, TX, Crane County, TX, Crockett County, TX, DeWitt County, TX, Dimmit County, TX, Ector County, TX, Edwards County, TX, Frio County, TX, Gillespie County, TX, Glasscock County, TX, Gonzales County, TX, Guadalupe County, TX, Irion County, TX, Karnes County, TX, Kendall County, TX, Kerr County, TX, Kimble County, TX, Kinney County, TX, Maverick County, TX, Medina County, TX, Menard County, TX, Midland County, TX, Pecos County, TX, Reagan County, TX, Real County, TX, Schleicher County, TX, Sterling County, TX, Sutton County, TX, Terrell County, TX, Tom Green County, TX, Upton County, TX, Uvalde County, TX, Val Verde County, TX, Wilson County, TX, Zavala County, TX

The radar

The San Angelo radar (KSJT), 130 km from the middle of the area, began a volume at 19:27 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
30%
One or more gusts of 65 knots or more
10%
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
70%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 17, 2:30 PM CDTSevere Thunderstorm WarningMAFCrane, Ector, Midland, Upton60 min
May 17, 2:59 PM CDTTornado WarningMAFReagan, Upton31 min
May 17, 3:00 PM CDTSevere Thunderstorm WarningSJTIrion60 min
May 17, 3:28 PM CDTSevere Thunderstorm WarningMAFReagan62 min
May 17, 3:28 PM CDTSevere Thunderstorm WarningMAFReagan, Upton62 min
May 17, 3:49 PM CDTSevere Thunderstorm WarningSJTIrion, Sterling, Tom Green40 min
May 17, 3:50 PM CDTFlash Flood WarningSJTIrion3 hr
May 17, 3:54 PM CDTSevere Thunderstorm WarningSJTIrion66 min
May 17, 4:20 PM CDTFlash Flood WarningMAFReagan3 hr
May 17, 4:24 PM CDTSevere Thunderstorm WarningSJTCrockett, Irion66 min
May 17, 4:27 PM CDTSevere Thunderstorm WarningMAFReagan32 min
May 17, 4:45 PM CDTSevere Thunderstorm WarningMAFCrane, Pecos, Upton60 min
May 17, 4:51 PM CDTTornado WarningMAFCrane, Pecos, Upton24 min
May 17, 4:51 PM CDTSevere Thunderstorm WarningSJTIrion, Tom Green54 min
May 17, 5:05 PM CDTTornado WarningSJTCrockett, Schleicher40 min
May 17, 5:34 PM CDTSevere Thunderstorm WarningMAFPecos41 min
May 17, 5:36 PM CDTSevere Thunderstorm WarningSJTCrockett54 min
May 17, 5:40 PM CDTSevere Thunderstorm WarningSJTCrockett, Schleicher, Tom Green65 min
May 17, 5:54 PM CDTSevere Thunderstorm WarningSJTCrockett51 min
May 17, 6:18 PM CDTSevere Thunderstorm WarningSJTCrockett, Schleicher, Sutton57 min
May 17, 6:42 PM CDTSevere Thunderstorm WarningSJTMenard, Schleicher63 min
May 17, 7:04 PM CDTFlash Flood WarningSJTMenard, Schleicher3 hr
May 17, 7:14 PM CDTSevere Thunderstorm WarningSJTKimble, Sutton61 min
May 17, 7:26 PM CDTSevere Thunderstorm WarningEWXEdwards, Val Verde79 min
May 17, 7:26 PM CDTSevere Thunderstorm WarningSJTSutton39 min
May 17, 8:11 PM CDTSevere Thunderstorm WarningEWXEdwards, Gillespie, Kerr, Real64 min
May 17, 8:11 PM CDTSevere Thunderstorm WarningSJTKimble64 min
May 17, 8:43 PM CDTSevere Thunderstorm WarningEWXVal Verde77 min
May 17, 8:45 PM CDTSevere Thunderstorm WarningEWXEdwards34 min
May 17, 8:50 PM CDTFlash Flood WarningSJTKimble3 hr
May 17, 9:29 PM CDTSevere Thunderstorm WarningEWXMedina46 min
May 17, 9:33 PM CDTSevere Thunderstorm WarningEWXGillespie, Kerr42 min
May 17, 9:47 PM CDTSevere Thunderstorm WarningEWXGillespie, Kendall, Kerr58 min
May 17, 10:02 PM CDTFlash Flood WarningEWXBandera3 hr
May 17, 10:14 PM CDTSevere Thunderstorm WarningEWXBandera, Medina, Real, Uvalde46 min
May 17, 10:14 PM CDTSevere Thunderstorm WarningEWXBandera, Bexar, Kendall, Medina61 min
May 17, 10:19 PM CDTSevere Thunderstorm WarningEWXEdwards, Kinney, Val Verde56 min
May 17, 10:37 PM CDTSevere Thunderstorm WarningEWXKendall, Kerr53 min
May 17, 10:40 PM CDTSevere Thunderstorm WarningEWXKinney, Maverick, Val Verde50 min
May 17, 10:57 PM CDTSevere Thunderstorm WarningEWXAtascosa, Bexar, Medina63 min
May 17, 11:05 PM CDTSevere Thunderstorm WarningEWXBexar, Blanco, Comal, Guadalupe, Kendall55 min
May 17, 11:08 PM CDTSevere Thunderstorm WarningEWXEdwards, Kinney, Val Verde35 min
May 17, 11:14 PM CDTSevere Thunderstorm WarningEWXMedina32 min
May 17, 11:38 PM CDTSevere Thunderstorm WarningEWXBexar, Wilson52 min
May 18, 12:31 AM CDTFlash Flood WarningEWXBexar, Comal, Guadalupe3 hr
May 18, 12:41 AM CDTSevere Thunderstorm WarningEWXDimmit, Kinney, Maverick, Zavala49 min
May 18, 1:31 AM CDTSevere Thunderstorm WarningEWXDimmit, Frio, Zavala44 min
May 18, 2:06 AM CDTFlash Flood WarningEWXGonzales, Guadalupe3 hr

Discussions around it

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

The nearest sounding before it

Del Rio, TX (KDLF), launched 12:00Z, 7.4 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-pSkew-T log-p diagram, Del Rio, TX at 12:00Z on 2016-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 38 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, Del Rio, TX at 12:00Z on 2016-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -57 square meters per square second.19395878Sfc1 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
38 J/kg
Mixed-layer CIN
-561 J/kg
Mixed-layer LCL
2197 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-57 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 16, 7:23 PM CDTMesoscale DiscussionSPCCarson, Collingsworth, Gray, Hansford, Hartley, Hemphill and 7 more67 min
May 16, 11:58 PM CDTSevere Thunderstorm WatchSPCArcher, Baylor, Briscoe, Childress, Clay, Cottle and 7 more5 hr
May 17, 2:08 AM CDTMesoscale DiscussionSPCClay, Cooke, Foard, Hardeman, Montague, Wichita and 1 more2 hr
May 17, 1:52 PM CDTMesoscale DiscussionSPCBandera, Crane, Crockett, Edwards, Irion, Kerr and 8 more113 min
May 17, 5:18 PM CDTMesoscale DiscussionSPCBee, Duval, Jim Wells, Live Oak, Webb57 min
May 17, 5:38 PM CDTMesoscale DiscussionSPCBandera, Crockett, Dimmit, Edwards, Frio, Gillespie and 17 more97 min
May 17, 6:20 PM CDTSevere Thunderstorm WatchSPCBrooks, Duval, Hidalgo, Jim Hogg, La Salle, McMullen and 3 more5 hr

Nearby

Severe Thunderstorm Watches in Texas, 2016Every 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.