Alert archive / South Carolina / Tornado Warnings in 1986

Tornado Warning 2, NWS Charleston, SC

August 4, 1986Horry County, South Carolina

NWS Charleston, SC issued this tornado warning at Aug 4, 1986, 1:05 PM EDT for Horry County, South Carolina. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Aug 4, 1986, 1:05 PM EDT (17:05 UTC)
Expired
Aug 4, 1986, 2:00 PM EDT
In force
55 min
Issued by
NWS Charleston, SC
Area
Whole counties

County Horry County, SC

The radar

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

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 5.1 hours before the alert went out and 147 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, Charleston AFB, SC at 12:00Z on 1986-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 564 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 12:00Z on 1986-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.1939Sfc1 km3 km6 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
564 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
985 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
30 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 KCHS 041705
TORCHS
SCC051-041800-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
105 PM EDT MON AUG 4 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO AND SPECIAL 
MARINE WARNING EFFECTIVE UNTIL 200 PM EDT FOR PEOPLE IN THE 
FOLLOWING COUNTY OF

SOUTH CAROLINA...EASTERN HORRY
...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE
COUNTY JUST MENTIONED

THIS INCLUDES THE CITY OF CRESCENT BEACH

COASTAL WATERS FROM CRESCENT BEACH TO THE NORTH CAROLINA LINE

AT 1255 PM EDT SEVERAL FUNNEL CLOUDS WERE OBSERVED EAST AND
NORTH OF THE CRESCENT BEACH AIRPORT.  SOME OF THESE CLOUDS
HAVE BRIEFLY TOUCHED THE GROUND.

IF YOU ARE NEAR THE WARNED AREA.. BE ALERT FOR CHANGING WEATHER
CONDITIONS AND POSSIBLE WARNINGS THAT MAY BE ISSUED.

STAY TUNED TO YOUR LOCAL RADIO.. TV STATION OR NOAA WEATHER RADIO
FOR THE LATEST INFORMATION ON THESE SEVERE WEATHER CONDITIONS.

MORE DETAILED INFORMATION WILL FOLLOW IN A SEVERE WEATHER STATEMENT.

PLEASE REPORT ANY DAMAGE OR INJURIES TO YOUR LOCAL LAW ENFORCEMENT
AGENCY AND ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER
SERVICE.

BOATERS IN THE WARNED AREA SHOULD MAKE FOR A SAFE PORT IMMEDIATELY.

 HALL

The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 4, 3:49 PM EDTSevere Thunderstorm WarningCHSDorchester56 min
Aug 4, 5:14 PM EDTSevere Thunderstorm WarningCHSBerkeley, Charleston61 min

Nearby

Tornado Warnings in South Carolina, 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; the sounding from the Mesonet's radiosonde archive.