Alert archive / South Carolina / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 17, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at Mar 31, 2002, 6:56 PM EST for Calhoun County, South Carolina. It was in force for 34 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
- Mar 31, 2002, 6:56 PM EST (23:56 UTC)
- Expired
- Mar 31, 2002, 7:30 PM EST
- In force
- 34 min
- Issued by
- NWS Columbia, SC
- Area
- Whole counties
County Calhoun County, SC
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 31, 7:15 PM EST | Thunderstorm Wind 50 E | St Matthews, SC | Sheriff reported some trees down near Creston. |
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 |
|---|---|---|---|
| Mar 31, 1:15 PM EST | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 11.9 hours before the alert went out and 113 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
- 775 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 541 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS52 KCAE 312356
SVRCAE
SCC017-010030-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
655 PM EST SUN MAR 31 2002
THE NATIONAL WEATHER SERVICE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN CALHOUN COUNTY IN CENTRAL SOUTH CAROLINA
* UNTIL 730 PM EST.
* AT 652 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM NEAR CAMERON..MOVING EAST AT 45 MPH.
EXPECT WIND GUSTS OF 40 TO 60 MPH AND LARGE HAIL WITH THIS
THUNDERSTORM.
RJLThe office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 31, 1:12 PM EST | Severe Thunderstorm Warning | CAE | Edgefield | 48 min |
| Mar 31, 1:37 PM EST | Severe Thunderstorm Warning | CAE | Aiken | 38 min |
| Mar 31, 2:03 PM EST | Severe Thunderstorm Warning | CAE | Lexington | 42 min |
| Mar 31, 2:29 PM EST | Severe Thunderstorm Warning | CAE | Calhoun | 31 min |
| Mar 31, 2:34 PM EST | Severe Thunderstorm Warning | CAE | Sumter | 41 min |
| Mar 31, 2:38 PM EST | Severe Thunderstorm Warning | CAE | Fairfield | 22 min |
| Mar 31, 2:48 PM EST | Severe Thunderstorm Warning | CAE | Lee | 57 min |
| Mar 31, 3:09 PM EST | Severe Thunderstorm Warning | CAE | Clarendon, Sumter | 36 min |
| Mar 31, 5:58 PM EST | Severe Thunderstorm Warning | CAE | Lee, Sumter | 47 min |
| Mar 31, 6:06 PM EST | Severe Thunderstorm Warning | CAE | Orangeburg | 54 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.