Alert archive / Texas / Severe Thunderstorm Watches in 2013
Severe Thunderstorm Watch 39
The Storm Prediction Center issued this severe thunderstorm watch at Feb 24, 2013, 10:36 PM CST for 33 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 24, 2013, 10:36 PM CST (04:36 UTC)
- Expired
- Feb 25, 2013, 3:55 AM CST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 33 counties
Archer County, TX, Baylor County, TX, Brown County, TX, Callahan County, TX, Clay County, TX, Coke County, TX, Coleman County, TX, Comanche County, TX, Concho County, TX, Eastland County, TX, Erath County, TX, Fisher County, TX, Haskell County, TX, Irion County, TX, Jack County, TX, Jones County, TX, Knox County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Mills County, TX, Nolan County, TX, Palo Pinto County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Shackelford County, TX, Stephens County, TX, Sterling County, TX, Taylor County, TX, Throckmorton County, TX, Tom Green County, TX, Young County, TX
The radar
The Dyess AFB radar (KDYX), 81 km from the middle of the area, began a volume at 04:39 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
- 5%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
2 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 24, 11:45 PM CST | Severe Thunderstorm Warning | OUN | Knox | 45 min |
| Feb 25, 12:30 AM CST | Severe Thunderstorm Warning | OUN | Foard, Knox | 30 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 00:00Z, 4.6 hours before the alert went out and 228 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
- 3888 m above ground
- 0-6 km bulk shear
- 84 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 175 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 |
|---|---|---|---|---|
| Feb 24, 7:20 PM CST | Mesoscale Discussion | SPC | Armstrong, Carson, Dallam, Deaf Smith, Gray, Hansford and 11 more | 6 hr |
| Feb 24, 7:52 PM CST | Mesoscale Discussion | SPC | Baylor, Childress, Collingsworth, Cottle, Foard, Hall and 4 more | 113 min |
| Feb 24, 10:25 PM CST | Mesoscale Discussion | SPC | Archer, Baylor, Brown, Callahan, Coke, Coleman and 29 more | 2 hr |
| Feb 25, 2:01 AM CST | Mesoscale Discussion | SPC | Archer, Baylor, Brown, Callahan, Clay, Coleman and 19 more | 119 min |
| Feb 25, 3:39 AM CST | Mesoscale Discussion | SPC | Armstrong, Briscoe, Carson, Castro, Collingsworth, Deaf Smith and 19 more | 5 hr |
| Feb 25, 9:25 AM CST | Mesoscale Discussion | SPC | Hardin, Harrison, Jasper, Jefferson, Newton, Orange and 5 more | 65 min |
| Feb 25, 10:54 AM CST | Mesoscale Discussion | SPC | Armstrong, Briscoe, Carson, Castro, Childress, Collingsworth and 23 more | 6 hr |
| Feb 25, 12:26 PM CST | Tornado Watch | SPC | Jasper, Newton, Orange, Sabine, San Augustine, Shelby | 10 hr |
Nearby
Severe Thunderstorm Watches in Texas, 2013Every severe thunderstorm watch in 2013
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.