Alert archive / South Carolina / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 29, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at May 3, 2002, 7:06 PM EDT for Barnwell County, South Carolina. It was in force for 39 min. 3 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 3, 2002, 7:06 PM EDT (23:06 UTC)
- Expired
- May 3, 2002, 7:45 PM EDT
- In force
- 39 min
- Issued by
- NWS Columbia, SC
- Area
- Whole counties
County Barnwell County, SC
The radar
The Charleston,SC radar (KCLX), 77 km from the middle of the area, began a volume at 23:06 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 3, 7:15 PM EDT | Thunderstorm Wind 50 E | Barnwell, SC | Sheriff reported trees down west of Barnwell. |
| May 3, 7:30 PM EDT | Hail 1.75 | Barnwell, SC | Sheriff reported golf ball size hail in Barnwell. |
| May 3, 7:45 PM EDT | Thunderstorm Wind 50 E | Barnwell, SC | Sheriff reported trees down northeast of Barnwell. |
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 3, 6:00 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 11.1 hours before the alert went out and 140 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
- 1445 J/kg
- Mixed-layer CIN
- -140 J/kg
- Mixed-layer LCL
- 808 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 159 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS52 KCAE 032306
SVRCAE
SCC011-032345-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
705 PM EDT FRI MAY 3 2002
THE NATIONAL WEATHER SERVICE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
BARNWELL COUNTY IN CENTRAL SOUTH CAROLINA
* UNTIL 745 PM EDT.
* AT 704 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 13 MILES SOUTHWEST OF WILLISTON..MOVING EAST AT
35 MPH.
* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
WILLISTON.
BLACKVILLE.
RC/CDLThe office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 3, 3:05 AM EDT | Severe Thunderstorm Warning | CAE | Lancaster | 25 min |
| May 3, 6:03 PM EDT | Severe Thunderstorm Warning | CAE | Aiken | 42 min |
| May 3, 6:47 PM EDT | Severe Thunderstorm Warning | CAE | Aiken | 43 min |
| May 3, 7:32 PM EDT | Tornado Warning | CAE | Barnwell | 28 min |
| May 3, 7:36 PM EDT | Severe Thunderstorm Warning | CAE | Bamberg | 39 min |
| May 3, 7:57 PM EDT | Severe Thunderstorm Warning | CAE | Orangeburg | 48 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2002Every severe thunderstorm warning in 2002
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.