Alert archive / Texas / Tornado Warnings in 1998

Tornado Warning 2, NWS Shreveport, LA

January 5, 1998Smith County, Texas

NWS Shreveport, LA issued this tornado warning at Jan 5, 1998, 11:43 PM CST for Smith County, Texas. It was in force for 32 min. 2 reports 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: Jan 5, 1998, 11:43 PM CST (05:43 UTC)
Expired: Jan 6, 1998, 12:15 AM CST
In force: 32 min
Issued by: NWS Shreveport, LA
Area: Whole counties

County Smith County, TX

The radar

The Shreveport radar (KSHV), 134 km from the middle of the area, began a volume at 05:46 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
Jan 5, 11:50 PM CST	Hail 0.75	Starrville, TX	Hail covered the roadways resulting in a car accident on I-20 and Hwy 271. No injuries.
Jan 5, 11:55 PM CST	Hail 2.5	Friendship, 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 nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 5.7 hours before the alert went out and 143 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: 631 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 676 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 32 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

125 
WFUS1 KSHV 060544 RRA
TORSHV
TXC423-060615-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
1143 PM CST MON JAN 5 1998
 
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1215 AM CST
FOR THE FOLLOWING AREA...
 
IN NORTHEAST TEXAS
 
   ...NORTHEASTERN SMITH COUNTY
 
AT 1143 PM CST DOPPLER RADAR INDICATED A TORNADO OVER NORTHEAST
SMITH COUNTY NEAR HIGHWAY 155 AND I-20 OR ABOUT 8 MILES NORTHEAST
OF TYLER MOVING TO THE NORTHEAST AT 20 MPH.
 
THIS TORNADO WILL AFFECT THE WINONA AREA.
 
 
IF YOU ARE CAUGHT OUTSIDE...HURRY TO A NEARBY REINFORCED BUILDING.
AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT.
 
IF YOU ARE IN A MOBILE HOME...GO TO A STORM SHELTER IF AVAILABLE.
IF A STORM SHELTER IS NOT AVAILABLE...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
Jan 5, 6:51 PM CST	Severe Thunderstorm Warning	SHV	Angelina	54 min
Jan 5, 10:48 PM CST	Tornado Warning	SHV	Smith	57 min
Jan 5, 11:23 PM CST	Flash Flood Warning	SHV	Smith	3 hr
Jan 5, 11:46 PM CST	Tornado Warning	SHV	Upshur	59 min
Jan 5, 11:53 PM CST	Severe Thunderstorm Warning	SHV	Gregg	52 min
Jan 6, 12:28 AM CST	Severe Thunderstorm Warning	SHV	Cass	62 min
Jan 6, 12:33 AM CST	Severe Thunderstorm Warning	SHV	Harrison, Marion	57 min
Jan 6, 1:00 AM CST	Flash Flood Warning	SHV	Gregg, Upshur	3 hr
Jan 6, 1:22 AM CST	Severe Thunderstorm Warning	SHV	Bowie	53 min
Jan 6, 1:26 AM CST	Severe Thunderstorm Warning	SHV	Gregg	49 min
Jan 6, 1:53 AM CST	Flash Flood Warning	SHV	Cass, Marion	3 hr
Jan 6, 2:36 AM CST	Flash Flood Warning	SHV	Bowie	3 hr
Jan 6, 5:25 AM CST	Severe Thunderstorm Warning	SHV	Panola	65 min
Jan 6, 12:10 PM CST	Flash Flood Warning	SHV	Sabine, San Augustine, Shelby	4 hr
Jan 6, 2:34 PM CST	Flash Flood Warning	SHV	Smith	3 hr
Jan 6, 3:00 PM CST	Flash Flood Warning	SHV	Angelina	3 hr

Nearby

Tornado Warnings in Texas, 1998 Every tornado warning in 1998 Tornadoes in 1998

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.