Alert archive / Texas / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 206
The Storm Prediction Center issued this severe thunderstorm watch at May 1, 2003, 11:20 PM CDT for 10 counties in Texas. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- May 1, 2003, 11:20 PM CDT (04:20 UTC)
- Expired
- May 2, 2003, 3:00 AM CDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
Counties Austin County, TX, Brazoria County, TX, Chambers County, TX, Fort Bend County, TX, Galveston County, TX, Harris County, TX, Liberty County, TX, Montgomery County, TX, San Jacinto County, TX, Waller County, TX
The radar
The Houston radar (KHGX), 61 km from the middle of the area, began a volume at 04:22 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 |
|---|---|---|---|---|
| May 2, 12:17 AM CDT | Severe Thunderstorm Warning | HGX | San Jacinto | 58 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
Lake Charles Mun, LA (KLCH), launched 00:00Z, 4.3 hours before the alert went out and 220 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
- 2084 J/kg
- Mixed-layer CIN
- -167 J/kg
- Mixed-layer LCL
- 1112 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 7:25 PM CDT | Severe Thunderstorm Watch | SPC | Bell, Blanco, Bosque, Brown, Burnet, Comanche and 29 more | 5 hr |
| May 1, 9:00 PM CDT | Severe Thunderstorm Watch | SPC | Bowie, Cass, Morris, Titus | 4 hr |
| May 1, 10:10 PM CDT | Mesoscale Discussion | SPC | Anderson, Bell, Blanco, Bosque, Brown, Burnet and 30 more | 95 min |
| May 1, 11:19 PM CDT | Mesoscale Discussion | SPC | Austin, Brazoria, Brazos, Burleson, Colorado, Fort Bend and 14 more | 86 min |
| May 1, 11:53 PM CDT | Mesoscale Discussion | SPC | Bowie, Cass, Morris, Titus | 67 min |
| May 2, 2:21 PM CDT | Mesoscale Discussion | SPC | Anderson, Angelina, Cherokee, Gregg, Hardin, Harrison and 15 more | 114 min |
| May 2, 2:25 PM CDT | Mesoscale Discussion | SPC | Bosque, Brown, Callahan, Coke, Coleman, Comanche and 21 more | 2 hr |
| May 2, 2:45 PM CDT | Tornado Watch | SPC | Brown, Callahan, Coke, Coleman, Concho, Crockett and 20 more | 6 hr |
| May 2, 4:28 PM CDT | Mesoscale Discussion | SPC | Anderson, Bell, Bosque, Cherokee, Coryell, Dallas and 30 more | 2 hr |
| May 2, 4:45 PM CDT | Severe Thunderstorm Watch | SPC | Anderson, Bell, Bosque, Brown, Burnet, Cass and 32 more | 5 hr |
| May 2, 5:57 PM CDT | Mesoscale Discussion | SPC | Brown, Callahan, Coke, Coleman, Comanche, Concho and 12 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Texas, 2003Every severe thunderstorm watch in 2003
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.