Alert archive / Texas / Tornado Warnings in 1989

Tornado Warning 21, NWS Shreveport, LA

June 4, 1989Harrison County, Texas

NWS Shreveport, LA issued this tornado warning at Jun 4, 1989, 10:09 PM CDT for Harrison County, Texas. It was in force for 66 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
Jun 4, 1989, 10:09 PM CDT (03:09 UTC)
Expired
Jun 4, 1989, 11:15 PM CDT
In force
66 min
Issued by
NWS Shreveport, LA
Area
Whole counties

County Harrison County, TX

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Jun 4, 10:15 PM CDTHail 1.75Harrison, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Longview/Gregg, TX (KGGG), launched 00:00Z, 3.2 hours before the alert went out and 31 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-pSkew-T log-p diagram, Longview/Gregg, TX at 00:00Z on 1989-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 945 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Longview/Gregg, TX at 00:00Z on 1989-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
945 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
1495 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.2
Supercell composite
3.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSHV 050310
TORSHV
LAC015-017-TXC203-050415-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
1009 PM CDT SUN JUN 4 1989
 
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1115 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES AND PARISHES...
 
IN NORTHWEST LOUISIANA
          ...BOSSIER...CADDO
IN NORTHEAST TEXAS
          ...HARRISON
 
AT 1006 PM WEATHER SERVICE RADAR SHOWED A POSSIBLE TORNADO JUST SOUTH
OF WASKOM TEXAS MOVING TO THE NORTHEAST NEAR 20 MPH.
 
PERSONS IN THE PATH OF THIS STORM SHOULD SEEK SAFE SHELTER
IMMEDIATELY.

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 4, 9:28 PM CDTSevere Thunderstorm WarningSHVHarrison62 min
Jun 4, 10:49 PM CDTSevere Thunderstorm WarningSHVPanola86 min
Jun 4, 10:49 PM CDTSevere Thunderstorm WarningSHVRusk86 min
Jun 5, 12:06 AM CDTFlash Flood WarningSHVHarrison, Panola, Rusk4 hr
Jun 5, 4:19 AM CDTFlash Flood WarningSHVHarrison, Panola, Rusk, Shelby5 hr

Nearby

Tornado Warnings in Texas, 1989Every tornado warning in 1989Tornadoes in 1989

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.