Alert archive / Texas / Severe Thunderstorm Watches in 2008
Severe Thunderstorm Watch 33
The Storm Prediction Center issued this severe thunderstorm watch at Feb 5, 2008, 2:28 AM CST for 42 counties in Texas. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 5, 2008, 2:28 AM CST (08:28 UTC)
- Expired
- Feb 5, 2008, 8:00 AM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 60 kt
All 42 counties
Bell County, TX, Bosque County, TX, Collin County, TX, Comanche County, TX, Cooke County, TX, Coryell County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Eastland County, TX, Ellis County, TX, Erath County, TX, Falls County, TX, Fannin County, TX, Freestone County, TX, Grayson County, TX, Hamilton County, TX, Henderson County, TX, Hill County, TX, Hood County, TX, Hopkins County, TX, Hunt County, TX, Jack County, TX, Johnson County, TX, Kaufman County, TX, Lamar County, TX, Lampasas County, TX, Limestone County, TX, McLennan County, TX, Mills County, TX, Montague County, TX, Navarro County, TX, Palo Pinto County, TX, Parker County, TX, Rains County, TX, Rockwall County, TX, Somervell County, TX, Stephens County, TX, Tarrant County, TX, Van Zandt County, TX, Wise County, TX, Young County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 53 km from the middle of the area, began a volume at 08:32 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
- 10%
- Ten or more severe wind reports
- 20%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 80%
- One or more hailstones of 2 inches or more
- 60%
- Six or more combined severe hail and wind reports
- 90%
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 00:00Z, 8.5 hours before the alert went out and 80 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
- 799 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 1287 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.3
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 5, 2:00 AM CST | Mesoscale Discussion | SPC | Bandera, Blanco, Bosque, Brown, Burnet, Callahan and 40 more | 3 hr |
| Feb 5, 5:03 AM CST | Mesoscale Discussion | SPC | Bosque, Collin, Cooke, Dallas, Delta, Denton and 17 more | 117 min |
| Feb 5, 11:16 AM CST | Mesoscale Discussion | SPC | Bowie, Camp, Cass, Franklin, Gregg, Harrison and 14 more | 89 min |
| Feb 5, 11:56 AM CST | Tornado Watch | SPC | Bowie, Camp, Cass, Delta, Fannin, Franklin and 11 more | 7 hr |
| Feb 5, 2:15 PM CST | Mesoscale Discussion | SPC | Anderson, Bowie, Camp, Cass, Collin, Dallas and 23 more | 90 min |
| Feb 5, 3:17 PM CST | Mesoscale Discussion | SPC | Bowie, Delta, Franklin, Hopkins, Lamar, Rains and 2 more | 88 min |
| Feb 5, 3:59 PM CST | Severe Thunderstorm Watch | SPC | Anderson, Angelina, Cherokee, Gregg, Harrison, Leon and 7 more | 4 hr |
| Feb 5, 5:54 PM CST | Mesoscale Discussion | SPC | Austin, Brazoria, Chambers, Colorado, Fort Bend, Galveston and 14 more | 96 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.