Alert archive / South Carolina / Tornado Warnings in 1998
Tornado Warning 21, NWS Charleston, SC
NWS Charleston, SC issued this tornado warning at May 10, 1998, 6:49 PM EDT for Berkeley County, South Carolina. It was in force for 61 min. 1 report 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, 6:49 PM EDT (22:49 UTC)
- Expired
- May 10, 1998, 7:50 PM EDT
- In force
- 61 min
- Issued by
- NWS Charleston, SC
- Area
- Whole counties
County Berkeley County, SC
The radar
The Charleston,SC radar (KCLX), 118 km from the middle of the area, began a volume at 22:48 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 10, 7:10 PM EDT | Tornado F0 | St Stephen, SC | Several trees and limbs down, mobile home damaged, minor roof damage to several brick homes and outdoor shed destroyed. |
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, 10.8 hours before the alert went out and 33 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.
063 WFUS1 KCHS 102250 RRA TORCHS SCC015-102350- BULLETIN...EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE CHARLESTON SC 649 PM EDT SUN MAY 10 1998 THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A * TORNADO WARNING FOR... NORTHERN BERKELEY COUNTY IN SOUTH CAROLINA * UNTIL 750 PM EDT * AT 648 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO 3 MILES NORTH OF PINEVILLE... MOVING SOUTHEAST AT 20 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... ST. STEPHEN BY 710 PM BONNEAU BY 730 PM ABANDON MOBILE HOMES GO IN A NEARBY STURDY BUILDING. AS A LAST RESORT LIE FLAT IN A DITCH AND COVER YOUR HEAD. SIMENSKY/BRUESKE
The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 3:03 PM EDT | Severe Thunderstorm Warning | CHS | Jasper | 62 min |
| May 10, 4:22 PM EDT | Severe Thunderstorm Warning | CHS | Dorchester | 63 min |
| May 10, 4:36 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort | 34 min |
| May 10, 4:39 PM EDT | Tornado Warning | CHS | Dorchester | 46 min |
| May 10, 5:00 PM EDT | Tornado Warning | CHS | Berkeley | 60 min |
| May 10, 5:19 PM EDT | Tornado Warning | CHS | Charleston | 61 min |
| May 10, 6:00 PM EDT | Tornado Warning | CHS | Berkeley | 20 min |
| May 10, 6:10 PM EDT | Tornado Warning | CHS | Charleston | 40 min |
Nearby
Tornado Warnings in South Carolina, 1998Every tornado warning in 1998Tornadoes 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; radar from the NEXRAD Level II archive.