Alert archive / Texas / Tornado Watches in 1997
Tornado Watch 47
The Storm Prediction Center issued this tornado watch at Feb 20, 1997, 11:00 AM CST for 40 counties in Texas. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 20, 1997, 11:00 AM CST (17:00 UTC)
- Expired
- Feb 20, 1997, 5:00 PM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 40 counties
Anderson County, TX, Bell County, TX, Bosque County, TX, Brazos County, TX, Burleson County, TX, Burnet County, TX, Collin County, TX, Cooke County, TX, Coryell County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Ellis County, TX, Falls County, TX, Fannin County, TX, Franklin County, TX, Freestone County, TX, Grayson County, TX, Henderson County, TX, Hill County, TX, Hopkins County, TX, Hunt County, TX, Johnson County, TX, Kaufman County, TX, Lamar County, TX, Lampasas County, TX, Leon County, TX, Limestone County, TX, McLennan County, TX, Milam County, TX, Navarro County, TX, Rains County, TX, Red River County, TX, Robertson County, TX, Rockwall County, TX, Somervell County, TX, Tarrant County, TX, Van Zandt County, TX, Williamson County, TX, Wood County, TX
Warnings issued inside it
12 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 20, 11:55 AM CST | Tornado Warning | FWD | Tarrant | 65 min |
| Feb 20, 1:36 PM CST | Flash Flood Warning | FWD | Hill, McLennan | 2 hr |
| Feb 20, 1:40 PM CST | Flash Flood Warning | FWD | Hill, McLennan | 2 hr |
| Feb 20, 2:04 PM CST | Flash Flood Warning | FWD | Coryell, Hamilton | 116 min |
| Feb 20, 2:26 PM CST | Flash Flood Warning | FWD | Lampasas, Mills | 4 hr |
| Feb 20, 2:26 PM CST | Flash Flood Warning | FWD | Bosque, Erath, Somervell | 4 hr |
| Feb 20, 2:55 PM CST | Flash Flood Warning | FWD | Henderson, Van Zandt | 4 hr |
| Feb 20, 3:05 PM CST | Flash Flood Warning | HGX | Brazos, Burleson | 3 hr |
| Feb 20, 4:15 PM CST | Flash Flood Warning | FWD | Hopkins, Rains | 4 hr |
| Feb 20, 4:15 PM CST | Flash Flood Warning | FWD | Delta | 4 hr |
| Feb 20, 5:00 PM CST | Flash Flood Warning | SHV | Camp, Smith, Upshur, Wood | 4 hr |
| Feb 20, 5:00 PM CST | Flash Flood Warning | SHV | Franklin, Red River, Titus | 4 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 5.0 hours before the alert went out and 117 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
- 372 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 546 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 197 m²/s²
- 0-3 km storm-relative helicity
- 245 m²/s²
- Significant tornado parameter
- 0.4
- 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 |
|---|---|---|---|---|
| Feb 19, 9:45 PM CST | Tornado Watch | SPC | Atascosa, Bandera, Bee, Bexar, Crockett, Dimmit and 18 more | 5 hr |
| Feb 20, 5:00 AM CST | Tornado Watch | SPC | Atascosa, Bastrop, Bell, Bexar, Blanco, Bosque and 56 more | 6 hr |
| Feb 20, 11:00 AM CST | Tornado Watch | SPC | Atascosa, Austin, Bastrop, Bee, Bexar, Blanco and 32 more | 6 hr |
| Feb 20, 3:30 PM CST | Tornado Watch | SPC | Anderson, Angelina, Bowie, Brazoria, Camp, Cass and 43 more | 6 hr |
Nearby
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.