Alert archive / Texas / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 43
The Storm Prediction Center issued this severe thunderstorm watch at Mar 7, 2005, 11:50 AM CST for 6 parishes in Louisiana; 31 counties in Texas. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 7, 2005, 11:50 AM CST (17:50 UTC)
- Expired
- Mar 7, 2005, 6:00 PM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 37 counties
Beauregard Parish, LA, Calcasieu Parish, LA, Cameron Parish, LA, Natchitoches Parish, LA, Sabine Parish, LA, Vernon Parish, LA, Angelina County, TX, Austin County, TX, Brazoria County, TX, Brazos County, TX, Burleson County, TX, Calhoun County, TX, Chambers County, TX, Colorado County, TX, Fort Bend County, TX, Galveston County, TX, Grimes County, TX, Hardin County, TX, Harris County, TX, Jackson County, TX, Jasper County, TX, Jefferson County, TX, Liberty County, TX, Matagorda County, TX, Montgomery County, TX, Newton County, TX, Orange County, TX, Polk County, TX, Sabine County, TX, San Augustine County, TX, San Jacinto County, TX, Trinity County, TX, Tyler County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Wharton County, TX
The radar
The Houston radar (KHGX), 85 km from the middle of the area, began a volume at 17:52 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
9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 7, 12:00 PM CST | Severe Thunderstorm Warning | HGX | Austin, Colorado | 45 min |
| Mar 7, 12:38 PM CST | Severe Thunderstorm Warning | HGX | Colorado | 97 min |
| Mar 7, 1:13 PM CST | Severe Thunderstorm Warning | HGX | Wharton | 85 min |
| Mar 7, 1:24 PM CST | Severe Thunderstorm Warning | HGX | Harris | 36 min |
| Mar 7, 1:41 PM CST | Severe Thunderstorm Warning | HGX | Fort Bend | 99 min |
| Mar 7, 1:59 PM CST | Severe Thunderstorm Warning | HGX | Harris, Liberty | 92 min |
| Mar 7, 2:16 PM CST | Severe Thunderstorm Warning | HGX | Harris | 29 min |
| Mar 7, 2:42 PM CST | Severe Thunderstorm Warning | HGX | Chambers, Harris | 110 min |
| Mar 7, 3:58 PM CST | Severe Thunderstorm Warning | HGX | Colorado | 32 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 12:00Z, 5.8 hours before the alert went out and 339 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
- 572 J/kg
- Mixed-layer CIN
- -111 J/kg
- Mixed-layer LCL
- 693 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 200 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 3.6
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 7, 12:00 PM CST | Mesoscale Discussion | SPC | Bossier, Caddo, Claiborne, Webster | 2 hr |
| Mar 7, 12:50 PM CST | Severe Thunderstorm Watch | SPC | Bienville, Bossier, Caddo, Claiborne, De Soto, Lincoln and 3 more | 5 hr |
| Mar 7, 3:31 PM CST | Mesoscale Discussion | SPC | Bossier, Caddo, Claiborne, Union, Webster | 89 min |
| Mar 7, 3:39 PM CST | Mesoscale Discussion | SPC | Beauregard, Calcasieu, Natchitoches, Sabine, Vernon | 96 min |
| Mar 7, 9:08 AM CST | Mesoscale Discussion | SPC | Angelina, Aransas, Atascosa, Austin, Bastrop, Bee and 53 more | 97 min |
Nearby
Severe Thunderstorm Watches in Texas, 2005Severe Thunderstorm Watches in Louisiana, 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.