Alert archive / Texas / Tornado Warnings in 1986

Tornado Warning 27, NWS Shreveport, LA

August 3, 1986Panola County, Shelby County, Texas

NWS Shreveport, LA issued this tornado warning at Aug 3, 1986, 5:05 AM CDT for Panola County, Shelby County, Texas. It was in force for 55 min. 4 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
Aug 3, 1986, 5:05 AM CDT (10:05 UTC)
Expired
Aug 3, 1986, 6:00 AM CDT
In force
55 min
Issued by
NWS Shreveport, LA
Area
Whole counties

Counties Panola County, TX, Shelby 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
Aug 3, 5:20 AM CDTThunderstorm Wind 0Panola, TX
Aug 3, 5:20 AM CDTThunderstorm Wind 0Panola, TX
Aug 3, 5:38 AM CDTThunderstorm Wind 0Shelby, TX
Aug 3, 5:38 AM CDTThunderstorm Wind 0Shelby, 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, 10.1 hours before the alert went out and 54 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 1986-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2211 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 1986-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.1939Sfc1 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
2211 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
1764 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
67 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 031012 COR
TORSHV
TXC365-419-031100-

BULLETIN...EBS ACTIVATION REQUESTED
TORNADO WARNING...CORRECTED FOR TIME...
NATIONAL WEATHER SERVICE SHREVEPORT LA
505 AM CDT SUN AUG 3 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING EFFECTIVE
UNTIL 600 AM CDT  FOR PEOPLE IN THE FOLLOWING COUNTIES IN

NORTHEAST TEXAS...THE SOUTHEASTERN SECTIONS OF PANOLA AND THE
EASTERN HALF OF SHELBY.

AT 4:00 AM CDT THE NATIONAL WEATGER SERVICE RADAR IN SHREVEPORT SHOWED
A POSSIBLE TORNADO NEAR GALLOWAY TEXAS MOVING SOUTH SOUTHEAST NEAR
10 MPH. THE MOVEMENT WILL TAKE THIS STORM BETWEEN PAXTON AND JOAQUIN
TEXAS.


PERSONS IN THE PATH OF THIS TORNADO SHOULD SEEK SHELTER IN A PERMANENT
STRUCTURE ON THE LOWEST FLOOR IN AN INTERIOR SMALL ROOM.  GET UNDER A
PIECE OF HEAVY FURNITURE OR COVER YOURSELF WITH SOMETHING TO PROTECT
AGAINST FLYING OR FALLING DEBRIS.

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Aug 3, 4:05 AM CDT, 1 hour before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
405 AM CDT SUN AUG 3 1986

...THE SEVERE THUNDERSTORM WARNING ISSUED FOR HARRISON COUNTY AT 3AM
HAS EXPIRED..THOUGH STRONG THUNDERSTORMS CONTINUE OVER HARRISON COUNTY.

AT 4 AM THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT WAS INDICATING
A BAND OF HEAVY THUNDERSTORMS 15 MILES WIDE FROM GILMER TEXAS SOUTHEAST
ACROSS LONGVIEW TO NEAR DE BERRY IN NORTHEAST PANOLA COUNTY.

THE BAND OF THUNDERSTORMS WAS MOVING VERY SLOWLY SOUTHWARD.  THE SLOW
MOVEMENT AND HEAVY INTENSITIES WILL CAUSE LOCALLY HEAVY RAINFALL IN
A SHORT TIME WITH STREET AND LOW AREA FLOODING DEVELOPING QUICKLY
OVER SOUTHERN HARRISON..GREGG AND NORTHERN PANOLA COUNTIES OF NORTH-
EAST TEXAS.  FREQUENT DANGEROUS LIGHTNING..STRONG GUSTY WINDS AND
SMALL HAIL WILL LIKELY ACCOMPANY THE HEAVIER STORMS.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 3:10 AM CDTSevere Thunderstorm WarningSHVHarrison50 min
Aug 3, 6:00 AM CDTSevere Thunderstorm WarningSHVGregg, Rusk60 min
Aug 3, 6:00 AM CDTSevere Thunderstorm WarningSHVPanola60 min
Aug 3, 3:40 PM CDTSevere Thunderstorm WarningSHVGregg, Harrison65 min

Nearby

Tornado Warnings in Texas, 1986Every tornado warning in 1986Tornadoes in 1986

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.