Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 19, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at May 3, 2021, 6:43 PM EDT for Colleton County, Dorchester County, South Carolina. It was in force for 62 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 3, 2021, 6:43 PM EDT (22:43 UTC)
- Expired
- May 3, 2021, 7:45 PM EDT
- In force
- 62 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Colleton County, SC, Dorchester County, SC
The radar
The Charleston,SC radar (KCLX), 62 km from the middle of the area, began a volume at 22:42 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, 7:09 PM EDT | TSTM WND DMG | 5 Ne Smoaks, SC | A TREE WAS REPORTED DOWN ON AUGUSTA HIGHWAY NEAR DRAIN ROAD. |
| May 3, 7:21 PM EDT | TSTM WND DMG | 5 Ssw Saint George, SC | A TREE WAS REPORTED DOWN NEAR WESTBURRY ROAD AND WIRE ROAD. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 10.7 hours before the alert went out and 68 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
- 1333 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 765 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 141 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 5.0
The text
As transmitted.
725
WUUS52 KCHS 032243
SVRCHS
SCC029-035-032345-
/O.NEW.KCHS.SV.W.0019.210503T2243Z-210503T2345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Charleston SC
643 PM EDT Mon May 3 2021
The National Weather Service in Charleston has issued a
* Severe Thunderstorm Warning for portions of...
Colleton County in southeastern South Carolina...
Dorchester County in southeastern South Carolina...
* Until 745 PM EDT.
* At 643 PM EDT, a severe thunderstorm was located over Lodge, moving
east at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is possible. Expect wind
damage to trees and powerlines.
* Locations impacted include...
Walterboro, Saint George, Givhans Ferry State Park, Dorchester,
Colleton, Ridgeville, Cottageville, Harleyville, Reevesville,
Smoaks, Lodge, Williams, Givhans, Ruffin and Ashton.
This warning includes...
I-26 between mile markers 171 and 185.
I-95 in South Carolina between mile markers 58 and 85.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Report damage directly to the Charleston National Weather Service at
888-383-2024 when it is safe to do so.
&&
LAT...LON 3328 8048 3326 8043 3326 8040 3286 8021
3291 8064 3301 8103 3304 8105 3310 8095
3306 8090 3309 8088 3313 8089 3333 8050
TIME...MOT...LOC 2243Z 270DEG 35KT 3309 8094
HAIL...1.00IN
WIND...60MPH
$$3 follow-up statements
533
WWUS52 KCHS 032259
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
659 PM EDT Mon May 3 2021
SCC029-035-032345-
/O.CON.KCHS.SV.W.0019.000000T0000Z-210503T2345Z/
Colleton SC-Dorchester SC-
659 PM EDT Mon May 3 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR COLLETON AND DORCHESTER COUNTIES...
At 658 PM EDT, a severe thunderstorm was located near Smoaks, moving
east at 40 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and powerlines.
Locations impacted include...
Saint George, Givhans Ferry State Park, Dorchester, Colleton,
Ridgeville, Harleyville, Reevesville, Smoaks, Lodge, Williams,
Ruffin, Ashton, Canadys and Padgetts.
This warning includes...
I-26 between mile markers 171 and 185.
I-95 in South Carolina between mile markers 64 and 85.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Report damage directly to the Charleston National Weather Service at
888-383-2024 when it is safe to do so.
&&
LAT...LON 3328 8048 3326 8043 3326 8040 3303 8029
3300 8055 3300 8082 3301 8103 3304 8105
3310 8095 3306 8090 3309 8088 3313 8089
3333 8050
TIME...MOT...LOC 2258Z 270DEG 35KT 3309 8076
HAIL...0.88IN
WIND...60MPH
$$649
WWUS52 KCHS 032313
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
713 PM EDT Mon May 3 2021
SCC029-035-032345-
/O.CON.KCHS.SV.W.0019.000000T0000Z-210503T2345Z/
Colleton SC-Dorchester SC-
713 PM EDT Mon May 3 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR COLLETON AND DORCHESTER COUNTIES...
At 713 PM EDT, a severe thunderstorm was located near Canadys, moving
east at 40 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and powerlines.
Locations impacted include...
Saint George, Givhans Ferry State Park, Dorchester, Colleton,
Ridgeville, Harleyville, Reevesville, Smoaks, Lodge, Williams,
Ruffin, Ashton, Canadys and Padgetts.
This warning includes...
I-26 between mile markers 171 and 185.
I-95 in South Carolina between mile markers 64 and 85.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Report damage directly to the Charleston National Weather Service at
888-383-2024 when it is safe to do so.
&&
LAT...LON 3328 8048 3326 8043 3326 8040 3303 8029
3300 8055 3300 8082 3301 8103 3304 8105
3310 8095 3306 8090 3309 8088 3313 8089
3333 8050
TIME...MOT...LOC 2313Z 270DEG 35KT 3309 8058
HAIL...0.88IN
WIND...60MPH
$$122
WWUS52 KCHS 032337
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
737 PM EDT Mon May 3 2021
SCC029-035-032347-
/O.EXP.KCHS.SV.W.0019.000000T0000Z-210503T2345Z/
Colleton SC-Dorchester SC-
737 PM EDT Mon May 3 2021
...THE SEVERE THUNDERSTORM WARNING FOR COLLETON AND DORCHESTER
COUNTIES WILL EXPIRE AT 745 PM EDT...
Strong thunderstorms will remain possible for the next 1 to 2 hours.
LAT...LON 3328 8048 3326 8043 3326 8040 3303 8029
3300 8055 3300 8082 3301 8103 3304 8105
3310 8095 3306 8090 3309 8088 3313 8089
3333 8050
TIME...MOT...LOC 2337Z 270DEG 35KT 3309 8031
$$The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 3, 5:50 PM EDT | Severe Thunderstorm Warning | CHS | Allendale | 55 min |
| May 3, 7:34 PM EDT | Special Weather Statement | CHS | Berkeley | 26 min |
| May 3, 7:40 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Dorchester | 65 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.