Alert archive / Texas / Severe Thunderstorm Watches in 2001
Severe Thunderstorm Watch 53
The Storm Prediction Center issued this severe thunderstorm watch at Mar 11, 2001, 11:00 PM CST for 15 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 11, 2001, 11:00 PM CST (05:00 UTC)
- Expired
- Mar 12, 2001, 4:00 AM CST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
Counties Bandera County, TX, Bexar County, TX, Comal County, TX, Edwards County, TX, Guadalupe County, TX, Hays County, TX, Kendall County, TX, Kerr County, TX, Kinney County, TX, Medina County, TX, Real County, TX, Travis County, TX, Uvalde County, TX, Wilson County, TX, Zavala County, TX
Warnings issued inside it
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 11, 11:14 PM CST | Severe Thunderstorm Warning | EWX | Bandera, Real, Uvalde | 61 min |
| Mar 12, 12:11 AM CST | Severe Thunderstorm Warning | EWX | Bandera, Medina | 64 min |
| Mar 12, 12:18 AM CST | Severe Thunderstorm Warning | EWX | Kinney | 57 min |
| Mar 12, 12:55 AM CST | Severe Thunderstorm Warning | EWX | Bexar, Kendall | 65 min |
| Mar 12, 1:09 AM CST | Severe Thunderstorm Warning | EWX | Bandera, Real, Uvalde | 66 min |
| Mar 12, 1:16 AM CST | Severe Thunderstorm Warning | EWX | Travis | 59 min |
| Mar 12, 1:44 AM CST | Severe Thunderstorm Warning | EWX | Comal | 61 min |
| Mar 12, 2:04 AM CST | Severe Thunderstorm Warning | EWX | Bandera, Medina | 56 min |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 5.0 hours before the alert went out and 113 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
- 1542 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 1115 m above ground
- 0-6 km bulk shear
- 82 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 146 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 2.6
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 12, 2:00 AM CST | Severe Thunderstorm Watch | SPC | Angelina, Austin, Bastrop, Brazos, Burleson, Caldwell and 29 more | 4 hr |
| Mar 12, 3:30 AM CST | Severe Thunderstorm Watch | SPC | Cass, Harrison, Marion, Panola, Shelby | 6 hr |
| Mar 12, 5:00 AM CST | Severe Thunderstorm Watch | SPC | Angelina, Hardin, Jasper, Jefferson, Liberty, Newton and 5 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Texas, 2001Every severe thunderstorm watch in 2001
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.