Alert archive / South Carolina / Severe Thunderstorm Watches in 1997

Severe Thunderstorm Watch 573

July 5, 199723 counties in South Carolina

The Storm Prediction Center issued this severe thunderstorm watch at Jul 5, 1997, 4:30 PM EDT for 23 counties in South Carolina. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jul 5, 1997, 4:30 PM EDT (20:30 UTC)
Expired
Jul 5, 1997, 11:00 PM EDT
In force
7 hr
Issued by
the Storm Prediction Center
All 23 counties

Allendale County, SC, Bamberg County, SC, Barnwell County, SC, Beaufort County, SC, Berkeley County, SC, Calhoun County, SC, Charleston County, SC, Clarendon County, SC, Colleton County, SC, Darlington County, SC, Dillon County, SC, Dorchester County, SC, Florence County, SC, Georgetown County, SC, Hampton County, SC, Horry County, SC, Jasper County, SC, Lee County, SC, Marion County, SC, Marlboro County, SC, Orangeburg County, SC, Sumter County, SC, Williamsburg County, SC

The radar

The Columbia radar (KCAE), 96 km from the middle of the area, began a volume at 20:30 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.

Warnings issued inside it

14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jul 5, 4:42 PM EDTSevere Thunderstorm WarningILMGeorgetown48 min
Jul 5, 4:44 PM EDTSevere Thunderstorm WarningCAESumter46 min
Jul 5, 5:08 PM EDTSevere Thunderstorm WarningILMHorry62 min
Jul 5, 5:15 PM EDTSevere Thunderstorm WarningCAECalhoun45 min
Jul 5, 5:24 PM EDTSevere Thunderstorm WarningCAEBarnwell36 min
Jul 5, 5:40 PM EDTSevere Thunderstorm WarningCAEBamberg65 min
Jul 5, 5:55 PM EDTSevere Thunderstorm WarningILMMarlboro45 min
Jul 5, 6:13 PM EDTSevere Thunderstorm WarningILMHorry47 min
Jul 5, 6:15 PM EDTSevere Thunderstorm WarningCAEClarendon45 min
Jul 5, 6:22 PM EDTSevere Thunderstorm WarningILMWilliamsburg43 min
Jul 5, 6:26 PM EDTSevere Thunderstorm WarningILMDillon34 min
Jul 5, 6:35 PM EDTTornado WarningILMDillon30 min
Jul 5, 7:50 PM EDTSevere Thunderstorm WarningCAECalhoun40 min
Jul 5, 8:43 PM EDTSevere Thunderstorm WarningILMHorry47 min

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 8.5 hours before the alert went out and 60 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 1997-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2272 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 1997-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
2272 J/kg
Mixed-layer CIN
-119 J/kg
Mixed-layer LCL
1274 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
20 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

Nearby

Severe Thunderstorm Watches in South Carolina, 1997Every severe thunderstorm watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.