Alert archive / South Carolina / Tornado Watches in 1998
Tornado Watch 811
The Storm Prediction Center issued this tornado watch at Sep 3, 1998, 9:45 AM EDT for 21 counties in Georgia; 6 counties in North Carolina; 27 counties in South Carolina. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 3, 1998, 9:45 AM EDT (13:45 UTC)
- Expired
- Sep 3, 1998, 5:00 PM EDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 54 counties
Bryan County, GA, Bulloch County, GA, Burke County, GA, Candler County, GA, Chatham County, GA, Dodge County, GA, Effingham County, GA, Emanuel County, GA, Evans County, GA, Jeff Davis County, GA, Jenkins County, GA, Laurens County, GA, Liberty County, GA, Montgomery County, GA, Screven County, GA, Tattnall County, GA, Telfair County, GA, Toombs County, GA, Treutlen County, GA, Wheeler County, GA, Wilcox County, GA, Bladen County, NC, Brunswick County, NC, Columbus County, NC, Onslow County, NC, Pender County, NC, Robeson County, NC, Aiken County, SC, Allendale County, SC, Bamberg County, SC, Barnwell County, SC, Beaufort County, SC, Berkeley County, SC, Calhoun County, SC, Charleston County, SC, Chesterfield 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, Kershaw County, SC, Lee County, SC, Marion County, SC, Marlboro County, SC, Orangeburg County, SC, Richland County, SC, Sumter County, SC, Williamsburg County, SC
The radar
The Charleston,SC radar (KCLX), 38 km from the middle of the area, began a volume at 13:44 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 10:28 AM EDT | Severe Thunderstorm Warning | CHS | Charleston | 47 min |
| Sep 3, 10:40 AM EDT | Severe Thunderstorm Warning | CHS | Bulloch | 45 min |
| Sep 3, 11:24 AM EDT | Tornado Warning | CHS | Screven | 31 min |
| Sep 3, 11:33 AM EDT | Severe Thunderstorm Warning | CHS | Jasper | 32 min |
| Sep 3, 12:04 PM EDT | Severe Thunderstorm Warning | CHS | Hampton | 36 min |
| Sep 3, 1:05 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley | 50 min |
| Sep 3, 1:09 PM EDT | Tornado Warning | CHS | Berkeley | 46 min |
| Sep 3, 1:21 PM EDT | Tornado Warning | CHS | Colleton | 49 min |
| Sep 3, 1:36 PM EDT | Tornado Warning | CAE | Orangeburg | 24 min |
| Sep 3, 1:49 PM EDT | Tornado Warning | CHS | Dorchester | 46 min |
| Sep 3, 1:55 PM EDT | Tornado Warning | ILM | Williamsburg | 30 min |
| Sep 3, 2:11 PM EDT | Tornado Warning | CAE | Orangeburg | 34 min |
| Sep 3, 2:11 PM EDT | Tornado Warning | ILM | Georgetown | 34 min |
| Sep 3, 2:30 PM EDT | Tornado Warning | ILM | Brunswick | 30 min |
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 1.8 hours before the alert went out and 108 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.
- Mixed-layer CAPE
- 182 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 528 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 288 m²/s²
- 0-3 km storm-relative helicity
- 433 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 2, 10:30 PM EDT | Tornado Watch | SPC | Atkinson, Bacon, Baker, Berrien, Brantley, Brooks and 21 more | 13 hr |
| Sep 3, 5:00 PM EDT | Tornado Watch | SPC | Beaufort, Bertie, Bladen, Brunswick, Camden, Carteret and 23 more | 7 hr |
Nearby
Tornado Watches in South Carolina, 1998Tornado Watches in Georgia, 1998Tornado Watches in North Carolina, 1998Every tornado watch in 1998
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.