Alert archive / Texas / Severe Thunderstorm Watches in 2008
Severe Thunderstorm Watch 239
The Storm Prediction Center issued this severe thunderstorm watch at Apr 26, 2008, 6:04 PM CDT for 55 counties in Texas. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 26, 2008, 6:04 PM CDT (23:04 UTC)
- Expired
- Apr 27, 2008, 1:00 AM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 55 counties
Bandera County, TX, Baylor County, TX, Blanco County, TX, Borden County, TX, Brown County, TX, Callahan County, TX, Coke County, TX, Coleman County, TX, Concho County, TX, Cottle County, TX, Crockett County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Edwards County, TX, Fisher County, TX, Foard County, TX, Garza County, TX, Gillespie County, TX, Glasscock County, TX, Haskell County, TX, Howard County, TX, Irion County, TX, Jones County, TX, Kendall County, TX, Kent County, TX, Kerr County, TX, Kimble County, TX, King County, TX, Knox County, TX, Llano County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Mitchell County, TX, Motley County, TX, Nolan County, TX, Reagan County, TX, Real County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Scurry County, TX, Shackelford County, TX, Sterling County, TX, Stonewall County, TX, Sutton County, TX, Taylor County, TX, Terrell County, TX, Throckmorton County, TX, Tom Green County, TX, Val Verde County, TX
The radar
The San Angelo radar (KSJT), 102 km from the middle of the area, began a volume at 23:06 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
- 5%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 40%
- Ten or more severe hail reports
- 70%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
29 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 6:16 PM CDT | Severe Thunderstorm Warning | SJT | Coke, Sterling, Tom Green | 29 min |
| Apr 26, 6:23 PM CDT | Severe Thunderstorm Warning | LUB | Crosby | 52 min |
| Apr 26, 6:42 PM CDT | Severe Thunderstorm Warning | SJT | Coke, Tom Green | 33 min |
| Apr 26, 7:08 PM CDT | Severe Thunderstorm Warning | LUB | Crosby, Dickens, Garza, Kent | 67 min |
| Apr 26, 7:10 PM CDT | Severe Thunderstorm Warning | SJT | Coke, Runnels, Tom Green | 50 min |
| Apr 26, 7:18 PM CDT | Severe Thunderstorm Warning | LUB | Garza | 42 min |
| Apr 26, 7:37 PM CDT | Severe Thunderstorm Warning | MAF | Brewster, Pecos, Terrell | 53 min |
| Apr 26, 7:46 PM CDT | Severe Thunderstorm Warning | SJT | Coke, Concho, Runnels, Tom Green | 44 min |
| Apr 26, 7:49 PM CDT | Severe Thunderstorm Warning | MAF | Reagan | 41 min |
| Apr 26, 7:59 PM CDT | Severe Thunderstorm Warning | MAF | Mitchell | 31 min |
| Apr 26, 8:01 PM CDT | Severe Thunderstorm Warning | LUB | Kent, Stonewall | 59 min |
| Apr 26, 8:10 PM CDT | Severe Thunderstorm Warning | LUB | Garza, Kent | 50 min |
| Apr 26, 8:13 PM CDT | Tornado Warning | MAF | Mitchell | 32 min |
| Apr 26, 8:24 PM CDT | Severe Thunderstorm Warning | MAF | Glasscock | 18 min |
| Apr 26, 8:26 PM CDT | Severe Thunderstorm Warning | SJT | Concho, Tom Green | 49 min |
| Apr 26, 8:32 PM CDT | Severe Thunderstorm Warning | LUB | Garza, Kent | 28 min |
| Apr 26, 8:37 PM CDT | Severe Thunderstorm Warning | SJT | Sterling | 38 min |
| Apr 26, 8:42 PM CDT | Tornado Warning | SJT | Coke, Nolan | 33 min |
| Apr 26, 8:59 PM CDT | Severe Thunderstorm Warning | LUB | Garza, Kent, Stonewall | 46 min |
| Apr 26, 9:05 PM CDT | Severe Thunderstorm Warning | SJT | Concho, McCulloch | 55 min |
| Apr 26, 9:12 PM CDT | Severe Thunderstorm Warning | SJT | Coke, Sterling | 33 min |
| Apr 26, 9:22 PM CDT | Tornado Warning | SJT | Concho, McCulloch, Menard | 38 min |
| Apr 26, 9:50 PM CDT | Severe Thunderstorm Warning | SJT | Jones, Shackelford | 40 min |
| Apr 26, 9:52 PM CDT | Tornado Warning | SJT | Concho, McCulloch, Mason, Menard | 53 min |
| Apr 26, 10:25 PM CDT | Severe Thunderstorm Warning | SJT | Shackelford | 50 min |
| Apr 26, 10:34 PM CDT | Tornado Warning | SJT | McCulloch, Mason, Menard | 56 min |
| Apr 26, 10:56 PM CDT | Severe Thunderstorm Warning | SJT | Callahan, Shackelford | 34 min |
| Apr 26, 11:03 PM CDT | Severe Thunderstorm Warning | SJT | Coleman, Concho, Runnels | 42 min |
| Apr 26, 11:26 PM CDT | Severe Thunderstorm Warning | SJT | Mason | 49 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, 11.1 hours before the alert went out and 143 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
- 1672 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 218 m²/s²
- 0-3 km storm-relative helicity
- 279 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 |
|---|---|---|---|---|
| Apr 25, 7:02 PM CDT | Mesoscale Discussion | SPC | Bell, Williamson | 88 min |
| Apr 25, 9:39 PM CDT | Mesoscale Discussion | SPC | Bandera, Bastrop, Blanco, Burnet, Comal, Edwards and 13 more | 66 min |
| Apr 25, 11:49 PM CDT | Mesoscale Discussion | SPC | Atascosa, Austin, Bastrop, Bexar, Burleson, Caldwell and 17 more | 56 min |
| Apr 26, 2:11 AM CDT | Mesoscale Discussion | SPC | Aransas, Atascosa, Bee, Brazoria, Brooks, Calhoun and 25 more | 94 min |
| Apr 26, 3:43 PM CDT | Mesoscale Discussion | SPC | Armstrong, Bailey, Borden, Briscoe, Carson, Castro and 31 more | 2 hr |
| Apr 26, 5:46 PM CDT | Mesoscale Discussion | SPC | Coke, Concho, Crockett, Glasscock, Irion, Menard and 6 more | 59 min |
Nearby
Severe Thunderstorm Watches in Texas, 2008Every severe thunderstorm watch in 2008
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.