Alert archive / Texas / Severe Thunderstorm Watches in 2008
Severe Thunderstorm Watch 57
The Storm Prediction Center issued this severe thunderstorm watch at Feb 16, 2008, 12:35 PM CST for 56 counties in Texas. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 16, 2008, 12:35 PM CST (18:35 UTC)
- Expired
- Feb 16, 2008, 7:00 PM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 56 counties
Bandera County, TX, Bell County, TX, Blanco County, TX, Bosque County, TX, Brown County, TX, Burnet County, TX, Coleman County, TX, Collin County, TX, Comal County, TX, Comanche County, TX, Cooke County, TX, Coryell County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Eastland County, TX, Edwards County, TX, Ellis County, TX, Erath County, TX, Fannin County, TX, Gillespie County, TX, Grayson County, TX, Hamilton County, TX, Hays County, TX, Hill County, TX, Hood County, TX, Hopkins County, TX, Hunt County, TX, Jack County, TX, Johnson County, TX, Kaufman County, TX, Kendall County, TX, Kerr County, TX, Kimble County, TX, Lamar County, TX, Lampasas County, TX, Llano County, TX, Mason County, TX, McCulloch County, TX, McLennan County, TX, Menard County, TX, Mills County, TX, Montague County, TX, Navarro County, TX, Palo Pinto County, TX, Parker County, TX, Real County, TX, Rockwall County, TX, San Saba County, TX, Somervell County, TX, Stephens County, TX, Tarrant County, TX, Travis County, TX, Williamson County, TX, Wise County, TX, Young County, TX
The radar
The Ft Hood radar (KGRK), 129 km from the middle of the area, began a volume at 18:38 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
- 5%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 20%
- One or more gusts of 65 knots or more
- 5%
- Ten or more severe hail reports
- 80%
- One or more hailstones of 2 inches or more
- 40%
- Six or more combined severe hail and wind reports
- 90%
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 |
|---|---|---|---|---|
| Feb 16, 12:46 PM CST | Severe Thunderstorm Warning | FWD | Johnson, Tarrant | 44 min |
| Feb 16, 2:45 PM CST | Severe Thunderstorm Warning | FWD | Lamar | 31 min |
| Feb 16, 2:56 PM CST | Severe Thunderstorm Warning | FWD | Freestone, Limestone, Navarro | 49 min |
| Feb 16, 3:13 PM CST | Severe Thunderstorm Warning | FWD | Henderson, Kaufman, Navarro, Van Zandt | 47 min |
| Feb 16, 4:14 PM CST | Severe Thunderstorm Warning | EWX | Lee, Williamson | 15 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
Fort Worth, TX (KFWD), launched 12:00Z, 6.6 hours before the alert went out and 200 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
- 362 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 591 m²/s²
- 0-3 km storm-relative helicity
- 667 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.9
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 15, 7:00 PM CST | Mesoscale Discussion | SPC | Atascosa, Bexar, Dimmit, Frio, Guadalupe, Karnes and 3 more | 90 min |
| Feb 15, 10:38 PM CST | Mesoscale Discussion | SPC | Austin, Grimes, Hardin, Harris, Jasper, Liberty and 7 more | 97 min |
| Feb 15, 11:43 PM CST | Mesoscale Discussion | SPC | Armstrong, Briscoe, Carson, Castro, Childress, Collingsworth and 24 more | 5 hr |
| Feb 16, 1:09 AM CST | Mesoscale Discussion | SPC | Anderson, Angelina, Archer, Baylor, Camp, Chambers and 58 more | 66 min |
| Feb 16, 2:53 AM CST | Mesoscale Discussion | SPC | Borden, Coke, Concho, Edwards, Fisher, Glasscock and 16 more | 67 min |
| Feb 16, 6:36 AM CST | Mesoscale Discussion | SPC | Armstrong, Carson, Collingsworth, Donley, Gray, Hansford and 12 more | 4 hr |
| Feb 16, 10:00 AM CST | Mesoscale Discussion | SPC | Archer, Bandera, Baylor, Brown, Callahan, Clay and 39 more | 90 min |
| Feb 16, 12:01 PM CST | Mesoscale Discussion | SPC | Bastrop, Bell, Blanco, Bosque, Brown, Burnet and 30 more | 89 min |
| Feb 16, 2:00 PM CST | Mesoscale Discussion | SPC | Anderson, Angelina, Austin, Bee, Brazoria, Brazos and 49 more | 90 min |
| Feb 16, 2:26 PM CST | Tornado Watch | SPC | Anderson, Angelina, Austin, Bastrop, Brazoria, Brazos and 54 more | 6 hr |
| Feb 16, 3:31 PM CST | Mesoscale Discussion | SPC | Bandera, Bell, Blanco, Bosque, Brown, Burnet and 41 more | 59 min |
| Feb 16, 5:57 PM CST | Mesoscale Discussion | SPC | Angelina, Austin, Brazoria, Chambers, Cherokee, Colorado and 29 more | 2 hr |
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.