Alert archive / Texas / Tornado Watches in 2009
Tornado Watch 193
The Storm Prediction Center issued this tornado watch at Apr 26, 2009, 3:01 PM CDT for 24 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 26, 2009, 3:01 PM CDT (20:01 UTC)
- Expired
- Apr 26, 2009, 8:15 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 3 in
- Strongest gust expected
- 70 kt
All 24 counties
Callahan County, TX, Coke County, TX, Crockett County, TX, Fisher County, TX, Glasscock County, TX, Haskell County, TX, Howard County, TX, Irion County, TX, Jones County, TX, Mitchell County, TX, Nolan County, TX, Pecos County, TX, Reagan County, TX, Runnels County, TX, Schleicher County, TX, Scurry County, TX, Shackelford County, TX, Sterling County, TX, Sutton County, TX, Taylor County, TX, Terrell County, TX, Throckmorton County, TX, Tom Green County, TX, Upton County, TX
The radar
The San Angelo radar (KSJT), 74 km from the middle of the area, began a volume at 20:00 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
- 50%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 70%
- One or more gusts of 65 knots or more
- 60%
- Ten or more severe hail reports
- 80%
- One or more hailstones of 2 inches or more
- 80%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
28 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 3:29 PM CDT | Tornado Warning | MAF | Pecos, Terrell | 46 min |
| Apr 26, 4:01 PM CDT | Severe Thunderstorm Warning | MAF | Glasscock, Midland, Upton | 44 min |
| Apr 26, 4:03 PM CDT | Severe Thunderstorm Warning | MAF | Pecos | 57 min |
| Apr 26, 4:09 PM CDT | Tornado Warning | SJT | Crockett | 51 min |
| Apr 26, 4:13 PM CDT | Tornado Warning | MAF | Pecos, Terrell | 17 min |
| Apr 26, 4:34 PM CDT | Severe Thunderstorm Warning | MAF | Glasscock | 41 min |
| Apr 26, 4:44 PM CDT | Severe Thunderstorm Warning | MAF | Glasscock | 46 min |
| Apr 26, 4:52 PM CDT | Severe Thunderstorm Warning | MAF | Howard, Mitchell, Scurry | 53 min |
| Apr 26, 4:54 PM CDT | Severe Thunderstorm Warning | SJT | Crockett | 51 min |
| Apr 26, 4:59 PM CDT | Severe Thunderstorm Warning | MAF | Pecos, Terrell | 61 min |
| Apr 26, 5:01 PM CDT | Severe Thunderstorm Warning | MAF | Glasscock, Howard | 44 min |
| Apr 26, 5:20 PM CDT | Flash Flood Warning | SJT | Crockett | 4 hr |
| Apr 26, 5:27 PM CDT | Flash Flood Warning | MAF | Pecos | 3 hr |
| Apr 26, 5:29 PM CDT | Tornado Warning | SJT | Crockett | 46 min |
| Apr 26, 5:30 PM CDT | Severe Thunderstorm Warning | MAF | Glasscock | 60 min |
| Apr 26, 5:36 PM CDT | Severe Thunderstorm Warning | MAF | Mitchell, Scurry | 54 min |
| Apr 26, 5:39 PM CDT | Severe Thunderstorm Warning | SJT | Crockett | 51 min |
| Apr 26, 5:48 PM CDT | Severe Thunderstorm Warning | SJT | Sterling | 57 min |
| Apr 26, 6:00 PM CDT | Severe Thunderstorm Warning | MAF | Pecos, Terrell | 60 min |
| Apr 26, 6:00 PM CDT | Tornado Warning | SJT | Crockett | 45 min |
| Apr 26, 6:23 PM CDT | Severe Thunderstorm Warning | SJT | Crockett, Irion, Schleicher, Sutton | 52 min |
| Apr 26, 6:34 PM CDT | Tornado Warning | SJT | Crockett | 41 min |
| Apr 26, 7:06 PM CDT | Tornado Warning | SJT | Crockett, Sutton | 39 min |
| Apr 26, 7:15 PM CDT | Severe Thunderstorm Warning | SJT | Crockett, Schleicher, Sutton | 60 min |
| Apr 26, 7:37 PM CDT | Severe Thunderstorm Warning | SJT | Crockett, Sutton | 38 min |
| Apr 26, 7:49 PM CDT | Tornado Warning | SJT | Crockett, Sutton | 41 min |
| Apr 26, 7:49 PM CDT | Tornado Warning | SJT | Sutton | 41 min |
| Apr 26, 8:13 PM CDT | Severe Thunderstorm Warning | SJT | Crockett, Schleicher, Sutton | 47 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 112 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
- 2464 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 635 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 179 m²/s²
- 0-3 km storm-relative helicity
- 261 m²/s²
- Significant tornado parameter
- 2.7
- Supercell composite
- 14.5
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 6:56 AM CDT | Mesoscale Discussion | SPC | Armstrong, Borden, Briscoe, Carson, Childress, Collingsworth and 24 more | 94 min |
| Apr 26, 10:19 AM CDT | Mesoscale Discussion | SPC | Carson, Gray, Hemphill, Lipscomb, Roberts, Wheeler | 56 min |
| Apr 26, 10:54 AM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Childress, Clay, Collingsworth, Cottle and 26 more | 66 min |
| Apr 26, 11:07 AM CDT | Tornado Watch | SPC | Collingsworth, Donley, Gray, Hemphill, Lipscomb, Ochiltree and 2 more | 7 hr |
| Apr 26, 12:58 PM CDT | Mesoscale Discussion | SPC | Baylor, Borden, Briscoe, Childress, Coke, Collingsworth and 29 more | 92 min |
| Apr 26, 1:37 PM CDT | Tornado Watch | SPC | Archer, Baylor, Childress, Clay, Cottle, Crosby and 15 more | 5 hr |
| Apr 26, 3:34 PM CDT | Mesoscale Discussion | SPC | Childress, Collingsworth, Cottle, Dickens, Donley, Foard and 9 more | 116 min |
| Apr 26, 5:44 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Childress, Clay, Collingsworth, Cottle and 11 more | 61 min |
| Apr 26, 6:16 PM CDT | Tornado Watch | SPC | Archer, Baylor, Childress, Clay, Collingsworth, Cottle and 14 more | 8 hr |
| Apr 26, 6:25 PM CDT | Mesoscale Discussion | SPC | Callahan, Coke, Coleman, Concho, Crockett, Edwards and 25 more | 2 hr |
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.