Alert archive / Texas / Tornado Warnings in 1997

Tornado Warning 28, NWS Shreveport, LA

October 23, 1997Shelby County, Texas

NWS Shreveport, LA issued this tornado warning at Oct 23, 1997, 6:10 PM CDT for Shelby County, Texas. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Oct 23, 1997, 6:10 PM CDT (23:10 UTC)
Expired: Oct 23, 1997, 6:45 PM CDT
In force: 35 min
Issued by: NWS Shreveport, LA
Area: Whole counties

County Shelby County, TX

The radar

The Shreveport radar (KSHV), 79 km from the middle of the area, began a volume at 23:13 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 23, 2:45 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 11.2 hours before the alert went out and 85 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 803 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 159 m²/s²
0-3 km storm-relative helicity: 213 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KSHV 232310 RRA
TORSHV
TXC419-232345-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
610 PM CDT THU OCT 23 1997
 
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  645 PM CDT
FOR THE FOLLOWING AREA...
 
IN NORTHEAST TEXAS
 
   ...SHELBY COUNTY
 
AT 608 PM CDT DOPPLER RADAR IN SHREVEPORT INDICATED A POSSIBLE
TORNADO ABOUT 15 MILES SOUTHWEST OF CENTER TEXAS MOVING TO THE
NORTHEAST AT 35 MPH. THIS STORM WILL AFFECT GRISBY AND AIKEN BY
620 PM.
 
 
IF YOU ARE IN THE PATH OF THIS TORNADO...GO TO AN INTERIOR HALLWAY
...CLOSET...OR BATHROOM ON THE LOWEST FLOOR. AVOID WINDOWS.
 
IF YOU ARE IN THE PATH OF THIS TORNADO...ABANDON YOUR CAR OR
MOBILE HOME FOR A REINFORCED BUILDING OR GET INTO A DITCH OR
CULVERT.
 
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
Oct 23, 1:30 PM CDT	Severe Thunderstorm Warning	SHV	Camp, Titus	30 min
Oct 23, 2:36 PM CDT	Severe Thunderstorm Warning	SHV	Cass, Harrison, Marion	69 min
Oct 23, 4:50 PM CDT	Severe Thunderstorm Warning	SHV	Smith	55 min
Oct 23, 5:38 PM CDT	Severe Thunderstorm Warning	SHV	Cherokee	67 min
Oct 23, 5:46 PM CDT	Tornado Warning	SHV	Cherokee	59 min
Oct 23, 6:17 PM CDT	Tornado Warning	SHV	Angelina	43 min
Oct 23, 6:47 PM CDT	Severe Thunderstorm Warning	SHV	Smith	43 min

Nearby

Tornado Warnings in Texas, 1997 Every tornado warning in 1997 Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.