Alert archive / South Carolina / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 16, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at Mar 20, 2001, 10:44 AM EST for Aiken County, Barnwell County, South Carolina. It was in force for 46 min. 2 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
- Mar 20, 2001, 10:44 AM EST (15:44 UTC)
- Expired
- Mar 20, 2001, 11:30 AM EST
- In force
- 46 min
- Issued by
- NWS Columbia, SC
- Area
- Whole counties
Counties Aiken County, SC, Barnwell County, SC
The radar
The Columbia radar (KCAE), 72 km from the middle of the area, began a volume at 15:44 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 20, 11:00 AM EST | Thunderstorm Wind 50 E | Countywide, SC | Sheriff reported scattered trees and powerlines down throughout county. |
| Mar 20, 11:05 AM EST | Thunderstorm Wind 50 E | Countywide, SC | Sheriff reported scattered trees and powerlines down throughout county. |
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 nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 3.7 hours before the alert went out and 275 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
- 3 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 457 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 1027 m²/s²
- 0-3 km storm-relative helicity
- 1597 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.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Columbia, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 20, 10:15 AM EST, 29 minutes earlier.
Area forecast discussion, Mar 20, 10:15 AM EST, 29 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE COLUMBIA SC 1015 AM EST TUE MAR 20 2001 DRY SLOT IN ERN GA MOVING TOWARD THE CSRA. THIS COULD PLAY HAVOC WITH OUR CURRENT FCST. MODELS NOT HANDLING THIS FEATURE WELL. RUC AND ETA BOTH HAVE THIS FEATURE WHERE IT IS NOW AT 00Z. BACK EDGE OF RAIN IS JUST AHEAD OF APPROACHING EDGE OF DRY SLOT. EXPECT RAIN TO ABATE FROM S TO N ACROSS THE CWA FOR THE MOST PART UNTIL UPPER LVL LOW MOVES OVER AREA. AM CONTEMPLATING HOW TO HANDLE AN UPDATE. .CAE... GA...NONE. SC...NONE. 04
The office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 20, 10:44 AM EST | Severe Thunderstorm Warning | CAE | Edgefield, McCormick | 46 min |
| Mar 20, 11:12 AM EST | Severe Thunderstorm Warning | CAE | Bamberg | 48 min |
| Mar 20, 11:27 AM EST | Severe Thunderstorm Warning | CAE | Aiken | 48 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2001Every severe thunderstorm warning in 2001
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.