Alert archive / South Carolina / Tornado Watches in 1999

Tornado Watch 8

January 2, 19996 counties in Georgia; 14 counties in North Carolina; 17 counties in South Carolina

The Storm Prediction Center issued this tornado watch at Jan 2, 1999, 11:00 PM EST for 6 counties in Georgia; 14 counties in North Carolina; 17 counties in South Carolina. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jan 2, 1999, 11:00 PM EST (04:00 UTC)
Expired
Jan 3, 1999, 5:00 AM EST
In force
6 hr
Issued by
the Storm Prediction Center
All 37 counties

Bulloch County, GA, Candler County, GA, Effingham County, GA, Evans County, GA, Montgomery County, GA, Screven County, GA, Bladen County, NC, Brunswick County, NC, Carteret County, NC, Columbus County, NC, Craven County, NC, Duplin County, NC, Hyde County, NC, Jones County, NC, Lenoir County, NC, New Hanover County, NC, Onslow County, NC, Pamlico County, NC, Pender County, NC, Sampson County, NC, Allendale County, SC, Bamberg County, SC, Beaufort County, SC, Berkeley County, SC, Charleston County, SC, Clarendon County, SC, Colleton County, SC, Dillon County, SC, Dorchester County, SC, Florence County, SC, Georgetown County, SC, Hampton County, SC, Horry County, SC, Jasper County, SC, Marion County, SC, Orangeburg County, SC, Williamsburg County, SC

The radar

The Columbia radar (KCAE), 133 km from the middle of the area, began a volume at 03:59 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

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

IssuedProductOfficeCountiesLasted
Jan 3, 3:11 AM ESTTornado WarningILMBrunswick44 min
Jan 3, 3:49 AM ESTTornado WarningILMBrunswick, New Hanover46 min
Jan 3, 3:53 AM ESTSevere Thunderstorm WarningILMColumbus47 min

The nearest sounding before it

Newport, NC (KMHX), launched 00:00Z, 4.0 hours before the alert went out and 308 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 1999-01-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1999-01-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 272 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1196 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
272 m²/s²
0-3 km storm-relative helicity
528 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.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 2, 9:00 PM ESTTornado WatchSPCAppling, Atkinson, Bacon, Ben Hill, Berrien, Brantley and 19 more6 hr

Nearby

Tornado Watches in South Carolina, 1999Tornado Watches in North Carolina, 1999Tornado Watches in Georgia, 1999Every tornado watch in 1999

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.