Alert archive / Georgia / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 45, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at Jul 22, 2021, 3:19 PM EDT for Bryan County, Chatham County, Effingham County, Georgia; Jasper County, South Carolina. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 22, 2021, 3:19 PM EDT (19:19 UTC)
- Expired
- Jul 22, 2021, 4:00 PM EDT
- In force
- 41 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Bryan County, GA, Chatham County, GA, Effingham County, GA, Jasper County, SC
The radar
The Charleston,SC radar (KCLX), 63 km from the middle of the area, began a volume at 19:22 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.
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 7.3 hours before the alert went out and 147 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
- 1228 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 787 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
311
WUUS52 KCHS 221919
SVRCHS
GAC029-051-103-SCC053-222000-
/O.NEW.KCHS.SV.W.0045.210722T1919Z-210722T2000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Charleston SC
319 PM EDT Thu Jul 22 2021
The National Weather Service in Charleston has issued a
* Severe Thunderstorm Warning for portions of...
Bryan County in southeastern Georgia...
Effingham County in southeastern Georgia...
Chatham County in southeastern Georgia...
Jasper County in southeastern South Carolina...
* Until 400 PM EDT.
* At 318 PM EDT, a severe thunderstorm was located over Godley
Station, moving southeast at 20 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...
Pooler, Richmond Hill, Midtown Savannah, Downtown Savannah,
Savannah International Airport, I-16/I-95 Interchange, Hunter Army
Airfield, Godley Station, Coffee Bluff, Montgomery, Rincon, Garden
City, Port Wentworth, Bloomingdale and Thunderbolt.
This warning includes the following interstates:
I-16 between mile markers 148 and 168.
I-516 between mile markers 3 and 9.
I-95 in Georgia between mile markers 86 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 3221 8144 3229 8122 3205 8095 3186 8132
TIME...MOT...LOC 1918Z 324DEG 19KT 3217 8128
HAIL...1.00IN
WIND...60MPH
$$
BRM2 follow-up statements
794
WWUS52 KCHS 221945
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
345 PM EDT Thu Jul 22 2021
GAC029-221955-
/O.CAN.KCHS.SV.W.0045.000000T0000Z-210722T2000Z/
Bryan GA-
345 PM EDT Thu Jul 22 2021
...THE SEVERE THUNDERSTORM WARNING FOR BRYAN COUNTY IS CANCELLED...
The immediate risk for severe weather has ended.
LAT...LON 3216 8129 3227 8120 3205 8095 3193 8118
TIME...MOT...LOC 1945Z 312DEG 14KT 3211 8117
$$
GAC051-103-SCC053-222000-
/O.CON.KCHS.SV.W.0045.000000T0000Z-210722T2000Z/
Effingham GA-Chatham GA-Jasper SC-
345 PM EDT Thu Jul 22 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR EFFINGHAM...CHATHAM AND JASPER COUNTIES...
At 345 PM EDT, a severe thunderstorm was located over Garden City,
moving southeast at 15 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...
Pooler, I-16/I-95 Interchange, Hunter Army Airfield, Midtown
Savannah, Downtown Savannah, Godley Station, Savannah International
Airport, Coffee Bluff, Montgomery, Garden City, Port Wentworth,
Bloomingdale, Thunderbolt, Vernonburg and Sandfly.
This warning includes the following interstates:
I-16 between mile markers 159 and 168.
I-516 between mile markers 3 and 9.
I-95 in Georgia between mile markers 101 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 3216 8129 3227 8120 3205 8095 3193 8118
TIME...MOT...LOC 1945Z 312DEG 14KT 3211 8117
HAIL...1.00IN
WIND...60MPH
$$
BRM387
WWUS52 KCHS 221953
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
353 PM EDT Thu Jul 22 2021
GAC051-103-SCC053-222003-
/O.EXP.KCHS.SV.W.0045.000000T0000Z-210722T2000Z/
Effingham GA-Chatham GA-Jasper SC-
353 PM EDT Thu Jul 22 2021
...THE SEVERE THUNDERSTORM WARNING FOR PORTIONS OF EFFINGHAM...
CHATHAM AND JASPER COUNTIES WILL EXPIRE AT 400 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning will be allowed to expire. However heavy rain
is still possible with this thunderstorm.
LAT...LON 3216 8129 3227 8120 3205 8095 3193 8118
TIME...MOT...LOC 1953Z 324DEG 19KT 3208 8114
$$
BRMThe office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 3:14 PM EDT | Severe Thunderstorm Warning | CHS | Bryan, Bulloch, Liberty | 10 min |
| Jul 22, 7:20 PM EDT | Special Weather Statement | CHS | Jenkins | 25 min |
| Jul 22, 2:06 PM EDT | Areal Flood Advisory | CHS | Beaufort | 35 min |
| Jul 22, 2:10 PM EDT | Special Marine Warning | CHS | 32 min | |
| Jul 22, 2:38 PM EDT | Areal Flood Advisory | CHS | Berkeley, Charleston | 2 hr |
| Jul 22, 4:10 PM EDT | Special Weather Statement | CHS | Dorchester | 35 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.