Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 2, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at Jan 27, 2021, 9:46 AM EST for Beaufort County, Jasper County, South Carolina; Chatham County, Georgia. It was in force for 43 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, 9:46 AM EST (14:46 UTC)
- Expired
- Jan 27, 2021, 10:29 AM EST
- In force
- 43 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Chatham County, GA, Beaufort County, SC, Jasper County, SC
The radar
The Charleston,SC radar (KCLX), 53 km from the middle of the area, began a volume at 14:45 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, 2.8 hours before the alert went out and 107 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.
589
WUUS52 KCHS 271446
SVRCHS
GAC051-SCC013-053-271545-
/O.NEW.KCHS.SV.W.0002.210127T1446Z-210127T1545Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Charleston SC
946 AM EST Wed Jan 27 2021
The National Weather Service in Charleston has issued a
* Severe Thunderstorm Warning for portions of...
Chatham County in southeastern Georgia...
Beaufort County in southeastern South Carolina...
Jasper County in southeastern South Carolina...
* Until 1045 AM EST.
* At 945 AM EST, a severe thunderstorm was located near
Pritchardville, moving northeast at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and powerlines.
* Locations impacted include...
Hilton Head Island, Bluffton, Beaufort, Port Royal, Bellinger Hill
Area, Downtown Savannah, Wilmington Island, Jasper, Hardeeville,
Thunderbolt, Rose Hill, Whitemarsh Island, Purysburgh, Burton and
Pritchardville.
This warning includes...
I-16 between mile markers 165 and 168.
I-516 between mile markers 5 and 8.
I-95 in South Carolina between mile markers 4 and 16.
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 3204 8114 3229 8112 3230 8112 3239 8113
3249 8045 3246 8045 3241 8040 3235 8040
3225 8058 3212 8072 3207 8083 3205 8083
3204 8091 3202 8095
TIME...MOT...LOC 1445Z 242DEG 42KT 3224 8103
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
BRM2 follow-up statements
809
WWUS52 KCHS 271512
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
1012 AM EST Wed Jan 27 2021
GAC051-SCC053-271522-
/O.CAN.KCHS.SV.W.0002.000000T0000Z-210127T1545Z/
Chatham GA-Jasper SC-
1012 AM EST Wed Jan 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR CHATHAM AND JASPER COUNTIES IS
CANCELLED...
The immediate risk for severe weather has ended.
LAT...LON 3220 8077 3238 8084 3241 8083 3243 8085
3249 8045 3246 8045 3241 8040 3235 8040
3226 8057 3212 8072 3212 8076
TIME...MOT...LOC 1512Z 242DEG 42KT 3239 8070
$$
SCC013-271545-
/O.CON.KCHS.SV.W.0002.000000T0000Z-210127T1545Z/
Beaufort SC-
1012 AM EST Wed Jan 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 AM EST
FOR BEAUFORT COUNTY...
At 1012 AM EST, a severe thunderstorm was located over Port Royal,
moving northeast at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and powerlines.
Locations impacted include...
Hilton Head Island, Beaufort, Port Royal, Shell Point, Burton, Hilton
Head Airport, Fripp Island, Forest Beach, Lemon Island, Ladys Island,
Parris Island and Folly Field.
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 3220 8077 3238 8084 3241 8083 3243 8085
3249 8045 3246 8045 3241 8040 3235 8040
3226 8057 3212 8072 3212 8076
TIME...MOT...LOC 1512Z 242DEG 42KT 3239 8070
HAIL...<.75IN
WIND...60MPH
$$
BRM326
WWUS52 KCHS 271529
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
1029 AM EST Wed Jan 27 2021
SCC013-271539-
/O.CAN.KCHS.SV.W.0002.000000T0000Z-210127T1545Z/
Beaufort SC-
1029 AM EST Wed Jan 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR BEAUFORT COUNTY IS
CANCELLED...
The storm which prompted the warning has moved out of the area.
Therefore the warning has been cancelled.
LAT...LON 3220 8077 3238 8084 3241 8083 3243 8085
3249 8045 3246 8045 3241 8040 3235 8040
3226 8057 3212 8072 3212 8076
TIME...MOT...LOC 1529Z 242DEG 42KT 3249 8048
$$
BRMThe 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, 9:24 AM EST | Severe Thunderstorm Warning | CHS | Beaufort, Hampton, Jasper | 51 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.