Alert archive / Texas / Tornado Watches in 2015
Tornado Watch 135
The Storm Prediction Center issued this tornado watch at May 6, 2015, 3:00 PM CDT for 18 counties in Texas. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- May 6, 2015, 3:00 PM CDT (20:00 UTC)
- Expired
- May 6, 2015, 10:03 PM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
Counties Brown County, TX, Coke County, TX, Coleman County, TX, Concho County, TX, Crockett County, TX, Fisher County, TX, Irion 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, Sterling County, TX, Sutton County, TX, Tom Green County, TX
The radar
The San Angelo radar (KSJT), 33 km from the middle of the area, began a volume at 20:01 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
- 30%
- One or more EF2 to EF5 tornadoes
- 10%
- 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
- 60%
Warnings issued inside it
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 3:24 PM CDT | Severe Thunderstorm Warning | SJT | Coleman, Concho, McCulloch, Runnels | 51 min |
| May 6, 3:53 PM CDT | Severe Thunderstorm Warning | SJT | Coleman, Runnels | 52 min |
| May 6, 4:22 PM CDT | Severe Thunderstorm Warning | SJT | Callahan, Coleman, Taylor | 38 min |
| May 6, 4:56 PM CDT | Severe Thunderstorm Warning | SJT | Fisher, Haskell, Jones | 34 min |
| May 6, 5:29 PM CDT | Severe Thunderstorm Warning | SJT | Fisher, Haskell, Jones | 46 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
Midland Regional, TX (KMAF), launched 12:00Z, 8.0 hours before the alert went out and 189 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
- 428 J/kg
- Mixed-layer CIN
- -115 J/kg
- Mixed-layer LCL
- 1325 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.9
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 7:41 PM CDT | Mesoscale Discussion | SPC | Borden, Briscoe, Childress, Cottle, Crosby, Dickens and 15 more | 2 hr |
| May 5, 8:07 PM CDT | Tornado Watch | SPC | Coke, Cottle, Crosby, Dickens, Fisher, Foard and 14 more | 4 hr |
| May 5, 9:56 PM CDT | Mesoscale Discussion | SPC | Borden, Callahan, Coke, Cottle, Crosby, Dickens and 23 more | 94 min |
| May 6, 1:03 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Childress, Clay, Cottle, Dickens and 17 more | 117 min |
| May 6, 1:23 PM CDT | Tornado Watch | SPC | Archer, Baylor, Callahan, Clay, Eastland, Foard and 16 more | 8 hr |
| May 6, 1:46 PM CDT | Mesoscale Discussion | SPC | Brown, Callahan, Coke, Coleman, Concho, Crockett and 22 more | 119 min |
| May 6, 3:27 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Clay, Foard, Hardeman, Haskell and 8 more | 2 hr |
| May 6, 5:25 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Clay, Foard, Hardeman, Haskell and 13 more | 2 hr |
| May 6, 6:34 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Clay, Cooke, Foard, Hardeman and 13 more | 86 min |
Nearby
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.