Alert archive / Georgia / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 18, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at May 3, 2021, 5:50 PM EDT for Screven County, Georgia; Allendale County, South Carolina. It was in force for 55 min. 1 report 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, 5:50 PM EDT (21:50 UTC)
- Expired
- May 3, 2021, 6:45 PM EDT
- In force
- 55 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Screven County, GA, Allendale County, SC
The radar
The Charleston,SC radar (KCLX), 56 km from the middle of the area, began a volume at 21:54 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, 6:00 PM EDT | TSTM WND DMG | 1 Nnw Martin, SC | NUMEROUS TREES DOWN ALONG HWY 125 AND HWY 321. |
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, 9.8 hours before the alert went out and 133 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.
551
WUUS52 KCHS 032150
SVRCHS
GAC251-SCC005-032245-
/O.NEW.KCHS.SV.W.0018.210503T2150Z-210503T2245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Charleston SC
550 PM EDT Mon May 3 2021
The National Weather Service in Charleston has issued a
* Severe Thunderstorm Warning for portions of...
Screven County in southeastern Georgia...
Allendale County in southeastern South Carolina...
* Until 645 PM EDT.
* At 549 PM EDT, a severe thunderstorm was located near Millhaven,
moving east at 30 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...
Allendale, Fairfax, Sycamore, Ulmer, Seigling, Millett, Martin,
Appleton and Burtons Ferry Landing.
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 3311 8137 3312 8120 3305 8113 3304 8109
3303 8108 3297 8118 3293 8154 3295 8170
3304 8156 3307 8160 3309 8160 3308 8161
3310 8161 3316 8154
TIME...MOT...LOC 2149Z 255DEG 25KT 3302 8166
HAIL...1.00IN
WIND...60MPH
$$4 follow-up statements
685
WWUS52 KCHS 032207
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
607 PM EDT Mon May 3 2021
GAC251-SCC005-032245-
/O.CON.KCHS.SV.W.0018.000000T0000Z-210503T2245Z/
Screven GA-Allendale SC-
607 PM EDT Mon May 3 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR SCREVEN AND ALLENDALE COUNTIES...
At 606 PM EDT, a severe thunderstorm was located near Martin, moving
east at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is possible. Expect wind
damage to trees and powerlines.
Locations impacted include...
Allendale, Fairfax, Sycamore, Ulmer, Seigling, Millett, Martin,
Appleton and Burtons Ferry Landing.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Report damage directly to the Charleston National Weather Service at
888-383-2024 when it is safe to do so.
&&
LAT...LON 3311 8137 3312 8120 3305 8113 3304 8109
3303 8108 3297 8118 3293 8154 3301 8159
3304 8156 3307 8160 3309 8160 3308 8161
3310 8161 3316 8154
TIME...MOT...LOC 2206Z 248DEG 36KT 3312 8141
HAIL...1.00IN
WIND...60MPH
$$762
WWUS52 KCHS 032214
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
614 PM EDT Mon May 3 2021
GAC251-032223-
/O.CAN.KCHS.SV.W.0018.000000T0000Z-210503T2245Z/
Screven GA-
614 PM EDT Mon May 3 2021
...THE SEVERE THUNDERSTORM WARNING FOR SCREVEN COUNTY IS CANCELLED...
The immediate risk for severe weather has ended.
LAT...LON 3311 8137 3312 8120 3305 8113 3303 8108
3297 8119 3297 8140 3300 8150 3301 8149
3301 8151 3304 8153 3305 8157 3309 8160
3308 8161 3310 8161 3316 8154
TIME...MOT...LOC 2213Z 255DEG 25KT 3313 8135
$$
SCC005-032245-
/O.CON.KCHS.SV.W.0018.000000T0000Z-210503T2245Z/
Allendale SC-
614 PM EDT Mon May 3 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR ALLENDALE COUNTY...
At 613 PM EDT, a severe thunderstorm was located near Appleton,
moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is possible. Expect wind
damage to trees and powerlines.
Locations impacted include...
Allendale, Fairfax, Sycamore, Ulmer, Seigling, Millett, Martin and
Appleton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Report damage directly to the Charleston National Weather Service at
888-383-2024 when it is safe to do so.
&&
LAT...LON 3311 8137 3312 8120 3305 8113 3303 8108
3297 8119 3297 8140 3300 8150 3301 8149
3301 8151 3304 8153 3305 8157 3309 8160
3308 8161 3310 8161 3316 8154
TIME...MOT...LOC 2213Z 255DEG 25KT 3313 8135
HAIL...1.00IN
WIND...60MPH
$$296
WWUS52 KCHS 032223
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
623 PM EDT Mon May 3 2021
SCC005-032245-
/O.CON.KCHS.SV.W.0018.000000T0000Z-210503T2245Z/
Allendale SC-
623 PM EDT Mon May 3 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR ALLENDALE COUNTY...
At 622 PM EDT, a severe thunderstorm was located near Ulmer, moving
east at 30 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and powerlines.
Locations impacted include...
Allendale, Sycamore, Ulmer, Seigling and Appleton.
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 3311 8137 3312 8120 3305 8113 3303 8108
3297 8119 3298 8132 3302 8140 3311 8145
3313 8143
TIME...MOT...LOC 2222Z 255DEG 25KT 3315 8127
HAIL...0.88IN
WIND...60MPH
$$346
WWUS52 KCHS 032236
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
636 PM EDT Mon May 3 2021
SCC005-032245-
/O.EXP.KCHS.SV.W.0018.000000T0000Z-210503T2245Z/
Allendale SC-
636 PM EDT Mon May 3 2021
...THE SEVERE THUNDERSTORM WARNING FOR ALLENDALE COUNTY WILL EXPIRE
AT 645 PM EDT...
The immediate risk for severe weather has ended.
LAT...LON 3311 8137 3312 8120 3305 8113 3303 8108
3297 8119 3298 8132 3302 8140 3311 8145
3313 8143
TIME...MOT...LOC 2235Z 255DEG 25KT 3317 8118
$$The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 3, 6:43 PM EDT | Severe Thunderstorm Warning | CHS | Colleton, Dorchester | 62 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 Georgia, 2021Severe 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.