Alert archive / North Carolina / Tornado Watches in 1998
Tornado Watch 812
The Storm Prediction Center issued this tornado watch at Sep 3, 1998, 5:00 PM EDT for 29 counties in North Carolina; 16 counties in South Carolina. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 3, 1998, 5:00 PM EDT (21:00 UTC)
- Expired
- Sep 4, 1998, 12:00 AM EDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 45 counties
Beaufort County, NC, Bertie County, NC, Bladen County, NC, Brunswick County, NC, Camden County, NC, Carteret County, NC, Chowan County, NC, Columbus County, NC, Craven County, NC, Cumberland County, NC, Dare County, NC, Duplin County, NC, Greene County, NC, Hyde County, NC, Jones County, NC, Lenoir County, NC, Martin County, NC, New Hanover County, NC, Onslow County, NC, Pamlico County, NC, Pasquotank County, NC, Pender County, NC, Perquimans County, NC, Pitt County, NC, Robeson County, NC, Sampson County, NC, Tyrrell County, NC, Washington County, NC, Wayne County, NC, Berkeley County, SC, Calhoun County, SC, Charleston County, SC, Clarendon County, SC, Darlington County, SC, Dillon County, SC, Dorchester County, SC, Florence County, SC, Georgetown County, SC, Horry County, SC, Lee County, SC, Marion County, SC, Marlboro County, SC, Orangeburg County, SC, Sumter County, SC, Williamsburg County, SC
The radar
The Wilmington radar (KLTX), 59 km from the middle of the area, began a volume at 21:03 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
6 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 5:45 PM EDT | Flash Flood Warning | ILM | Pender | 2 hr |
| Sep 3, 7:11 PM EDT | Severe Thunderstorm Warning | ILM | Brunswick | 34 min |
| Sep 3, 7:46 PM EDT | Tornado Warning | ILM | Brunswick, Columbus | 49 min |
| Sep 3, 8:08 PM EDT | Severe Thunderstorm Warning | ILM | Brunswick | 32 min |
| Sep 3, 10:23 PM EDT | Tornado Warning | MHX | Carteret | 32 min |
| Sep 3, 10:35 PM EDT | Tornado Warning | MHX | Craven | 45 min |
The nearest sounding before it
Newport, NC (KMHX), launched 12:00Z, 9.0 hours before the alert went out and 185 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
- 51 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 1265 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -46 m²/s²
- 0-3 km storm-relative helicity
- -5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 3, 9:45 AM EDT | Tornado Watch | SPC | Bladen, Brunswick, Columbus, Onslow, Pender, Robeson | 7 hr |
Nearby
Tornado Watches in North Carolina, 1998Tornado Watches in South 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.