Alert archive / South Carolina / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 79, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at May 10, 1998, 3:42 PM EDT for Orangeburg County, South Carolina. It was in force for 48 min. 6 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 10, 1998, 3:42 PM EDT (19:42 UTC)
- Expired
- May 10, 1998, 4:30 PM EDT
- In force
- 48 min
- Issued by
- NWS Columbia, SC
- Area
- Whole counties
County Orangeburg County, SC
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 10, 3:55 PM EDT | Hail 1 | Neeses, SC | EOC reported 1 inch hail in Neeses. |
| May 10, 4:05 PM EDT | Thunderstorm Wind 50 | Orangeburg, SC | Sheriff reported trees and powerlines down in Bolentown. |
| May 10, 4:10 PM EDT | Hail 1.75 | Santee, SC | SKYWARN spotter reported golf ball size hail. |
| May 10, 4:12 PM EDT | Thunderstorm Wind 60 | Cordova, SC | Sheriff reported trees down. |
| May 10, 4:14 PM EDT | Hail 1.75 | Cordova, SC | Sheriff reported golf ball size hail. |
| May 10, 4:20 PM EDT | Hail 1.75 | Orangeburg, SC | SKYWARN spotter reported golf ball size hail. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 10, 2:00 PM EDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 7.7 hours before the alert went out and 96 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
- 315 J/kg
- Mixed-layer CIN
- -133 J/kg
- Mixed-layer LCL
- 1032 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 138 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCAE 101942 RRA SVRCAE SCC075-102030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE COLUMBIA SC 342 PM EDT SUN MAY 10 1998 THE NATIONAL WEATHER SERVICE IN COLUMBIA SC HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... ORANGEBURG COUNTY IN SOUTH CAROLINA * UNTIL 430 PM EDT * AT 340 PM NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM 10 MILES SOUTHEAST OF NEESES. THIS STORM WILL MOVE EAST-NORTHEAST 45 MPH. THE MAIN THREAT FROM THIS STORM IS LARGE HAIL.. * THE SEVERE THUNDERSTORM WILL BE NEAR... ORANGEBURG AT 400 PM. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN 6CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
The office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 4:04 PM EDT | Tornado Warning | CAE | Orangeburg | 26 min |
| May 10, 5:13 PM EDT | Severe Thunderstorm Warning | CAE | Sumter | 32 min |
| May 10, 5:23 PM EDT | Tornado Warning | CAE | Sumter | 37 min |
| May 10, 5:32 PM EDT | Severe Thunderstorm Warning | CAE | Bamberg, Orangeburg | 43 min |
| May 10, 5:36 PM EDT | Tornado Warning | CAE | Clarendon | 39 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 1998Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.