Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 1, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at Jan 27, 2021, 9:24 AM EST for Beaufort County, Hampton County, Jasper County, South Carolina; Chatham County, Effingham County, Georgia. It was in force for 51 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
- Jan 27, 2021, 9:24 AM EST (14:24 UTC)
- Expired
- Jan 27, 2021, 10:15 AM EST
- In force
- 51 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Chatham County, GA, Effingham County, GA, Beaufort County, SC, Hampton County, SC, Jasper County, SC
The radar
The Charleston,SC radar (KCLX), 26 km from the middle of the area, began a volume at 14:27 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 |
|---|---|---|---|
| Jan 27, 10:04 AM EST | TSTM WND DMG | 1 Ene Port Royal, SC | A TRAINED SPOTTER REPORTED SEVERAL LARGE TREE LIMBS DOWN NEAR BALLARD CIRCLE. THE LARGEST OF THE LIMBS WAS APPROXIMATELY 8FT IN LENGTH WITH A 4 INCH DIAMETER. TIME WAS ESTIMATED VIA RADAR DATA. |
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, 2.4 hours before the alert went out and 121 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 945 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- -37 m²/s²
- 0-3 km storm-relative helicity
- 304 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.2
The text
As transmitted.
325
WUUS52 KCHS 271424
SVRCHS
GAC051-103-SCC013-049-053-271515-
/O.NEW.KCHS.SV.W.0001.210127T1424Z-210127T1515Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Charleston SC
924 AM EST Wed Jan 27 2021
The National Weather Service in Charleston has issued a
* Severe Thunderstorm Warning for portions of...
Effingham County in southeastern Georgia...
Chatham County in southeastern Georgia...
Beaufort County in southeastern South Carolina...
Hampton County in southeastern South Carolina...
Jasper County in southeastern South Carolina...
* Until 1015 AM EST.
* At 924 AM EST, a severe thunderstorm was located near Marlow,
moving northeast at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and powerlines.
* Locations impacted include...
Hilton Head Island, Pooler, Bluffton, Beaufort, Port Royal,
Ridgeland, Springfield, Yemassee, Savannah International Airport,
Godley Station, Clarendon, Jasper, Rincon, Garden City and Port
Wentworth.
This warning includes...
I-16 between mile markers 148 and 155.
I-95 in South Carolina between mile markers 2 and 41.
I-95 in Georgia between mile markers 103 and 112.
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 3285 8092 3283 8090 3272 8085 3270 8082
3267 8076 3230 8055 3207 8137 3213 8141
3221 8141 3222 8143 3223 8142 3224 8144
3230 8145 3239 8153 3242 8154
TIME...MOT...LOC 1424Z 240DEG 49KT 3227 8133
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
SPR3 follow-up statements
333
WWUS52 KCHS 271440
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
940 AM EST Wed Jan 27 2021
SCC049-271448-
/O.CAN.KCHS.SV.W.0001.000000T0000Z-210127T1515Z/
Hampton SC-
940 AM EST Wed Jan 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR HAMPTON COUNTY IS CANCELLED...
The immediate risk for severe weather has ended.
LAT...LON 3267 8076 3230 8055 3211 8123 3248 8141
TIME...MOT...LOC 1438Z 240DEG 49KT 3237 8113
$$
GAC051-103-SCC013-053-271515-
/O.CON.KCHS.SV.W.0001.000000T0000Z-210127T1515Z/
Effingham GA-Chatham GA-Beaufort SC-Jasper SC-
940 AM EST Wed Jan 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 AM EST
FOR EFFINGHAM...CHATHAM...BEAUFORT AND JASPER COUNTIES...
At 938 AM EST, a severe thunderstorm was located near Ebenezer,
moving northeast at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated. Thunderstorm winds had blown down a few
trees in northern Bryan County and southern Effingham
County.
IMPACT...Expect damage to trees and powerlines.
Locations impacted include...
Hilton Head Island, Pooler, Bluffton, Beaufort, Port Royal,
Ridgeland, Springfield, Savannah International Airport, Godley
Station, Clarendon, Jasper, Rincon, Garden City, Port Wentworth and
Hardeeville.
This warning includes...
I-95 in South Carolina between mile markers 2 and 34.
I-95 in Georgia between mile markers 105 and 112.
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 3267 8076 3230 8055 3211 8123 3248 8141
TIME...MOT...LOC 1438Z 240DEG 49KT 3237 8113
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
SPR654
WWUS52 KCHS 271456
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
956 AM EST Wed Jan 27 2021
GAC051-103-SCC013-053-271515-
/O.CON.KCHS.SV.W.0001.000000T0000Z-210127T1515Z/
Effingham GA-Chatham GA-Beaufort SC-Jasper SC-
956 AM EST Wed Jan 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 AM EST
FOR EFFINGHAM...CHATHAM...BEAUFORT AND JASPER COUNTIES...
At 956 AM EST, a severe thunderstorm was located over Rose Hill,
moving east at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated. This thunderstorm has a history of blowing
down a few trees.
IMPACT...Expect damage to trees and powerlines.
Locations impacted include...
Hilton Head Island, Pooler, Bluffton, Beaufort, Port Royal,
Ridgeland, Springfield, Savannah International Airport, Godley
Station, Clarendon, Jasper, Rincon, Garden City, Port Wentworth and
Hardeeville.
This warning includes...
I-95 in South Carolina between mile markers 2 and 34.
I-95 in Georgia between mile markers 105 and 112.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Report damage directly to the Charleston National Weather Service at
888-383-2024 when it is safe to do so.
&&
LAT...LON 3267 8076 3230 8055 3211 8123 3248 8141
TIME...MOT...LOC 1456Z 267DEG 43KT 3229 8088
HAIL...<.75IN
WIND...60MPH
$$
SPR322
WWUS52 KCHS 271514
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
1014 AM EST Wed Jan 27 2021
GAC051-103-SCC013-053-271522-
/O.EXP.KCHS.SV.W.0001.000000T0000Z-210127T1515Z/
Effingham GA-Chatham GA-Beaufort SC-Jasper SC-
1014 AM EST Wed Jan 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR EFFINGHAM...CHATHAM...BEAUFORT
AND JASPER COUNTIES WILL EXPIRE AT 1015 AM EST...
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.
Additional thunderstorms with gusty winds are possible today.
LAT...LON 3267 8076 3230 8055 3211 8123 3248 8141
TIME...MOT...LOC 1512Z 240DEG 49KT 3239 8068
$$
SPRThe office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 27, 3:08 AM EST | Lake Wind Advisory | CHS | Berkeley | 33 hr |
| Jan 27, 3:12 AM EST | Gale Warning | CHS | 33 hr | |
| Jan 27, 3:12 AM EST | Small Craft Advisory | CHS | 12 hr | |
| Jan 27, 9:46 AM EST | Severe Thunderstorm Warning | CHS | Beaufort, Jasper | 43 min |
| Jan 27, 10:02 AM EST | Special Marine Warning | CHS | 50 min | |
| Jan 27, 11:39 AM EST | Special Weather Statement | CHS | Allendale | 21 min |
| Jan 27, 9:12 AM EST | Special Weather Statement | CHS | Effingham | 33 min |
| Jan 27, 11:11 AM EST | Special Weather Statement | CHS | Jenkins | 19 min |
| Jan 27, 12:33 PM EST | Special Weather Statement | CHS | Evans, Tattnall | 27 min |
| Jan 27, 12:49 PM EST | Severe Thunderstorm Warning | CHS | Bryan, Bulloch, Evans, Liberty | 26 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2021Severe Thunderstorm Warnings in Georgia, 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.