Alert archive / South Carolina / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 171, NWS Wilmington, NC

September 17, 1996Horry County, South Carolina

NWS Wilmington, NC issued this severe thunderstorm warning at Sep 17, 1996, 1:04 AM EDT for Horry County, South Carolina. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 17, 1996, 1:04 AM EDT (05:04 UTC)
Expired
Sep 17, 1996, 1:35 AM EDT
In force
31 min
Issued by
NWS Wilmington, NC
Area
Whole counties

County Horry County, SC

The radar

The Wilmington radar (KLTX), 51 km from the middle of the area, began a volume at 05:07 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.

The nearest sounding before it

Newport, NC (KMHX), launched 00:00Z, 5.1 hours before the alert went out and 216 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, Newport, NC at 00:00Z on 1996-09-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 266 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, Newport, NC at 00:00Z on 1996-09-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 178 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
266 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
802 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
178 m²/s²
0-3 km storm-relative helicity
250 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.7

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Sep 16, 3:57 PM EDT, 9 hours 7 minutes earlier.

Area forecast discussion, Sep 16, 3:57 PM EDT, 9 hours 7 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON NC
340 PM EDT MON SEP 16 1996

RAH & CAE: CURRENT TRND.

DISC: SHRA/TSRA ALRDY INVADING WRN PART OF CWA AND GNRL ENE MOVMNT
XPCTD THRU EVE. LTL CHG SYNOPTICWISE WITH MDLS RMNG CONSISTENT IN
MOVG LO TO THE NE THRU PD. GOING FCSTS OK WITH LCLY HVY PCPN XPCTD
CSTL SECS LTR THIS TNGT/TUE. TRAILING CDFNT WILL MOV THRU AREA LT
TUE/ERY WED...CONTG CHC SHRA/TSRA. XPC RPD CLRG WED EVE AS COOLER...
DRIER AIR INVADES THE AREA. TEMPS OK. FOR CSTL WTRS...LTST OBS SHWG
SLY WND INCRG. RAISING SCA LOOKS GOOD AS GRADIENT TIGHTENS AHD OF
APCHG SYS.

ILM EB 073/084 072/080 070 21443
FLO EB 073/086 070/081 068 21543

DTR

Nearby

Severe Thunderstorm Warnings in South Carolina, 1996Every severe thunderstorm warning in 1996

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; radar from the NEXRAD Level II archive.