Alert archive / Texas / Severe Thunderstorm Watches in 2015
Severe Thunderstorm Watch 183
The Storm Prediction Center issued this severe thunderstorm watch at May 16, 2015, 9:36 PM CDT for 21 counties in Texas. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 16, 2015, 9:36 PM CDT (02:36 UTC)
- Expired
- May 17, 2015, 4:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 21 counties
Brown County, TX, Callahan County, TX, Coke County, TX, Coleman County, TX, Concho County, TX, Crockett County, TX, Irion County, TX, Jones County, TX, Kimble County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Nolan County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Shackelford County, TX, Sutton County, TX, Taylor County, TX, Throckmorton County, TX, Tom Green County, TX
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
- 40%
- 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
6 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 9:57 PM CDT | Severe Thunderstorm Warning | SJT | Callahan, Shackelford | 48 min |
| May 16, 10:12 PM CDT | Severe Thunderstorm Warning | SJT | Crockett, Irion, Schleicher | 63 min |
| May 16, 10:14 PM CDT | Severe Thunderstorm Warning | SJT | Brown, Callahan, Coleman | 46 min |
| May 16, 10:20 PM CDT | Flash Flood Warning | SJT | Shackelford | 3 hr |
| May 16, 11:13 PM CDT | Severe Thunderstorm Warning | SJT | Crockett, Schleicher, Sutton | 47 min |
| May 16, 11:49 PM CDT | Flash Flood Warning | SJT | Crockett | 3 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
Midland Regional, TX (KMAF), launched 00:00Z, 2.6 hours before the alert went out and 192 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2901 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 7:14 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Clay, Cooke, Haskell, Jack and 12 more | 91 min |
| May 16, 9:02 PM CDT | Mesoscale Discussion | SPC | Brown, Callahan, Coke, Coleman, Comanche, Concho and 29 more | 58 min |
| May 16, 10:40 PM CDT | Severe Thunderstorm Watch | SPC | Bosque, Collin, Comanche, Cooke, Dallas, Denton and 17 more | 3 hr |
| May 16, 11:48 PM CDT | Mesoscale Discussion | SPC | Bosque, Brown, Callahan, Coleman, Collin, Comanche and 34 more | 117 min |
| May 17, 1:48 AM CDT | Mesoscale Discussion | SPC | Bosque, Brown, Collin, Comanche, Dallas, Denton and 22 more | 57 min |
| May 17, 2:25 AM CDT | Mesoscale Discussion | SPC | Edwards, Gillespie, Kerr, Kimble, Lampasas, Llano and 3 more | 95 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; the sounding from the Mesonet's radiosonde archive.