Alert archive / Texas / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 39
The Storm Prediction Center issued this severe thunderstorm watch at Feb 24, 2005, 4:45 AM CST for 5 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 24, 2005, 4:45 AM CST (10:45 UTC)
- Expired
- Feb 24, 2005, 10:00 AM CST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
Counties Brazoria County, TX, Calhoun County, TX, Jackson County, TX, Matagorda County, TX, Wharton County, TX
The radar
The Houston radar (KHGX), 127 km from the middle of the area, began a volume at 10:48 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.
Warnings issued inside it
1 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 24, 5:07 AM CST | Severe Thunderstorm Warning | HGX | Jackson | 38 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
Corpus Christi, TX (KCRP), launched 00:00Z, 10.8 hours before the alert went out and 169 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
- 1789 J/kg
- Mixed-layer CIN
- -102 J/kg
- Mixed-layer LCL
- 1160 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 100 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.6
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 23, 6:46 PM CST | Mesoscale Discussion | SPC | Andrews, Gaines, Yoakum | 119 min |
| Feb 23, 7:36 PM CST | Mesoscale Discussion | SPC | Bandera, Bell, Blanco, Burnet, Caldwell, Comal and 26 more | 84 min |
| Feb 23, 8:15 PM CST | Severe Thunderstorm Watch | SPC | Atascosa, Bandera, Bexar, Blanco, Comal, Edwards and 11 more | 7 hr |
| Feb 23, 11:12 PM CST | Mesoscale Discussion | SPC | Brown, Coke, Coleman, Concho, Crockett, Irion and 13 more | 2 hr |
| Feb 23, 11:37 PM CST | Mesoscale Discussion | SPC | Atascosa, Bandera, Bexar, Blanco, Comal, Dimmit and 12 more | 113 min |
| Feb 24, 1:47 AM CST | Mesoscale Discussion | SPC | Bandera, Bee, Blanco, Caldwell, DeWitt, Edwards and 19 more | 88 min |
| Feb 24, 2:15 AM CST | Severe Thunderstorm Watch | SPC | Atascosa, Bee, Bexar, DeWitt, Goliad, Karnes and 6 more | 6 hr |
| Feb 24, 4:12 AM CST | Mesoscale Discussion | SPC | Aransas, Atascosa, Bee, Brazoria, Calhoun, DeWitt and 11 more | 93 min |
| Feb 24, 7:04 AM CST | Mesoscale Discussion | SPC | Bee, Brazoria, Calhoun, Chambers, DeWitt, Fort Bend and 10 more | 86 min |
Nearby
Severe Thunderstorm Watches in Texas, 2005Every severe thunderstorm watch in 2005
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.