Alert archive / South Carolina / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 96, NWS Wilmington, NC

August 16, 1997Florence County, Marion County, Williamsburg County, South Carolina

NWS Wilmington, NC issued this severe thunderstorm warning at Aug 16, 1997, 7:52 PM EDT for Florence County, Marion County, Williamsburg County, South Carolina. It was in force for 43 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
Aug 16, 1997, 7:52 PM EDT (23:52 UTC)
Expired
Aug 16, 1997, 8:35 PM EDT
In force
43 min
Issued by
NWS Wilmington, NC
Area
Whole counties

Counties Florence County, SC, Marion County, SC, Williamsburg County, SC

The radar

The Wilmington radar (KLTX), 108 km from the middle of the area, began a volume at 23:53 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

TimeReportWhereRemark
Aug 16, 8:30 PM EDTThunderstorm Wind 60Johnsonville, SCFlorence Co. Sheriffs Dep. reported trees down in the Johnsonville area.

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

Charleston AFB, SC (KCHS), launched 12:00Z, 11.9 hours before the alert went out and 118 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 1997-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 940 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, Charleston AFB, SC at 12:00Z on 1997-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 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
940 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
864 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
-16 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.

239 
WUUS1 KILM 162356
SVRILM
SCC041-067-089-162035-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED EXPIRATION TIME
NATIONAL WEATHER SERVICE WILMINGTON NC
752 PM EDT SAT AUG 16 1997

THE NATIONAL WEATHER SERVICE IN WILMINGTON NC HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 835 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN NORTHEASTERN SOUTH CAROLINA

   ...EXTREME SOUTHERN FLORENCE COUNTY
   ...SOUTHERN MARION COUNTY
   ...EXTREME NORTHEASTERN WILLIAMSBURG COUNTY


AT 751 PM EDT...DOPPLER RADAR INDICATED LARGE HAIL 31 MILES
SOUTHEAST OF FLORENCE OR 2 MILES SOUTHEAST OF KINGSBURG MOVING
NORTHWEST AT 5 MPH.

THIS STORM WILL BE IN THE VICINITY OF...
        KINGSBURG               BY 810 PM EDT
        GRESHAM                 BY 810 PM EDT

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN AND
DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.  STAY
INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

LGE

What forecasters said that day

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

NWS Wilmington, NC wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 16, 2:27 PM EDT, 5 hours 25 minutes earlier.

Area forecast discussion, Aug 16, 2:27 PM EDT, 5 hours 25 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
225 PM EDT SAT AUG 16 1997

ZFP: MOSTLY SUNNY SKIES SUNDAY WITH PC TO PARTLY SUNNY MON. POPS 20%
THRU SUN PM MON AND 30% MON. FWC TEMPS +2 LOOK GOOD.

CWF: WL CONT SW WINDS THRU FP...WOULD LIKE TO HOLD OFF ON BRINGING
TO WEST OVR THE WTR TILL MON PM. NOCTURNAL SURGES WL CONT TNT AND
SUN NIGHT. MON LOOKS WINDY OVR LAND AND THIS SHUD TRANSLATE OVR THE
SNDS SO WL CONT 15 TO 20 THRU MON. THE WIND SPEEDS SHUD REMAIN BELO
SCA LEVELS THRU FP. WL MENTION ISOLATED TSTMS THRU FP AS WELL...
THOUGH WEST FLOW SHOULD KEEP THE GREATEST ACTIVITY +20 NM OFFSHORE.
THE DEBATE WL PROB CONT ON SEA HEIGHTS. WL WORD AS 3 FT NORTH AND 4
FT SOUTH. THINKING IS 3 FT IMPLIES 2 TO 4 FT AND 4 FT IMPLIES 3 TO 5
FT. IT IS DIFFICULT TO ACCOUNT FOR ALL THE SUBTLE NUANCES FOUND OFF
THE NC COAST WITHOUT CHOPPING THE BREAK POINT INTO MUCH SMALLER
DIVISIONS TO ACCOUNT FOR AREAS SUCH AS DSNL AND THE EDDY CURRENT OFF
OF SHACKLEFORD AND CAPE LOOKOUT.

DISC: RIDGE CONT TO DOMINATE PATTERN AND AS FRONT BENDS ACROSS IT
NORTH OF THE REGION FLOW WILL BECOME MORE WESTERLY. THIS WILL RESULT
IN FEWER CLDS AND MORE HEATING FROM DOWNSLOPE COMPRESSION SUNDAY.
MON SHOULD BE A WINDY HOT ONE WITH MORE CLDS. NOT MUCH IN THE WAY OF
PRECIP...SEA BRZ WL BE HELD CLOSER TO THE COAST WITH THE WEST WIND.

.MHX...NONE.

JCI

Nearby

Severe Thunderstorm Warnings in South Carolina, 1997Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.