Alert archive / Texas / Tornado Warnings in 1997
Tornado Warning 3, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at Feb 20, 1997, 5:05 PM CST for Cass County, Texas. It was in force for 40 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Feb 20, 1997, 5:05 PM CST (23:05 UTC)
- Expired
- Feb 20, 1997, 5:45 PM CST
- In force
- 40 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
County Cass County, TX
The radar
The Shreveport radar (KSHV), 84 km from the middle of the area, began a volume at 23:05 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 20, 5:11 PM CST | Tornado F0 | Hughes Spgs, TX |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 20, 3:30 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 11.1 hours before the alert went out and 87 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
- 271 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 501 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 164 m²/s²
- 0-3 km storm-relative helicity
- 209 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSHV 202305 RRA TORSHV TXC067-202345- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SHREVEPORT LA 505 PM CST THU FEB 20 1997 THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 545 PM CST FOR THE FOLLOWING AREA... IN NORTHEAST TEXAS ...WESTERN CASS COUNTY AT 503 PM CST DOPPLER RADAR IN SHREVEPORT INDICATED A DEVELOPING TORNADO IN SOUTHWEST CASS COUNTY NEAR HUGHES SPRINGS MOVING TO THE NORTH AT 40 MPH. THIS TORNADO WILL AFFECT HUGHES SPRINGS. IF YOU ARE CAUGHT IN YOUR CAR IN THE PATH OF A TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT. \
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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 |
| Feb 20, 5:00 PM CST | Flash Flood Warning | SHV | Cherokee | 4 hr |
| Feb 20, 5:52 PM CST | Severe Thunderstorm Warning | SHV | Camp, Morris, Upshur | 38 min |
| Feb 20, 5:52 PM CST | Severe Thunderstorm Warning | SHV | Titus | 38 min |
Nearby
Tornado Warnings in Texas, 1997Every tornado warning in 1997Tornadoes in 1997
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.