Alert archive / Georgia / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 6, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at Mar 18, 2021, 1:47 PM EDT for 4 counties in Georgia. It was in force for 43 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
- Mar 18, 2021, 1:47 PM EDT (17:47 UTC)
- Expired
- Mar 18, 2021, 2:30 PM EDT
- In force
- 43 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Bryan County, GA, Liberty County, GA, Long County, GA, Tattnall County, GA
The radar
The Charleston,SC radar (KCLX), 118 km from the middle of the area, began a volume at 17:46 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 |
|---|---|---|---|
| Mar 18, 2:02 PM EDT | TSTM WND DMG | 2 Wnw Donald, GA | METAL ROOF WAS DISPLACED FROM LARGE SHED. TIME ESTIMATED FROM RADAR. |
| Mar 18, 2:35 PM EDT | FUNNEL CLOUD | 1 Nnw Flemington, GA | WRIGHT ARMY AIRFIELD REPORTED A FUNNEL CLOUD PASSED OVER THE FIELD AT 235 PM. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 18, 11:42 AM EDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 5.8 hours before the alert went out and 151 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
- 162 J/kg
- Mixed-layer CIN
- -183 J/kg
- Mixed-layer LCL
- 888 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 183 m²/s²
- 0-3 km storm-relative helicity
- 220 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
336
WUUS52 KCHS 181747
SVRCHS
GAC029-179-183-267-181830-
/O.NEW.KCHS.SV.W.0006.210318T1747Z-210318T1830Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Charleston SC
147 PM EDT Thu Mar 18 2021
The National Weather Service in Charleston has issued a
* Severe Thunderstorm Warning for portions of...
Bryan County in southeastern Georgia...
Liberty County in southeastern Georgia...
Long County in southeastern Georgia...
Tattnall County in southeastern Georgia...
* Until 230 PM EDT.
* At 146 PM EDT, a severe thunderstorm was located near Odum, moving
northeast at 65 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and powerlines.
* Locations impacted include...
Hinesville, Richmond Hill, Glennville, Pembroke, Fort Stewart,
Lanier, Flemington, Gumbranch, Gum Branch and Donald.
This warning includes I-95 in Georgia near mile marker 90.
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 8156 3195 8133 3171 8189 3173 8191
3176 8192 3175 8193 3176 8195 3179 8195
3179 8199 3182 8202 3181 8203 3184 8207
TIME...MOT...LOC 1746Z 238DEG 56KT 3176 8203
TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
$$
RFM2 follow-up statements
639
WWUS52 KCHS 181811
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
211 PM EDT Thu Mar 18 2021
GAC029-179-183-267-181830-
/O.CON.KCHS.SV.W.0006.000000T0000Z-210318T1830Z/
Bryan GA-Liberty GA-Long GA-Tattnall GA-
211 PM EDT Thu Mar 18 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM EDT
FOR BRYAN...LIBERTY...LONG AND TATTNALL COUNTIES...
At 210 PM EDT, a severe thunderstorm was located near Donald, moving
northeast at 45 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and powerlines.
Locations impacted include...
Hinesville, Richmond Hill, Glennville, Pembroke, Fort Stewart,
Lanier, Flemington, Gumbranch, Gum Branch and Donald.
This warning includes I-95 in Georgia near mile marker 90.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Report damage directly to the Charleston National Weather Service at
888-383-2024 when it is safe to do so.
&&
LAT...LON 3216 8156 3195 8133 3172 8186 3185 8189
3191 8196
TIME...MOT...LOC 1810Z 237DEG 41KT 3188 8183
TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
$$
RFM918
WWUS52 KCHS 181829
SVSCHS
Severe Weather Statement
National Weather Service Charleston SC
229 PM EDT Thu Mar 18 2021
GAC029-179-183-267-181839-
/O.EXP.KCHS.SV.W.0006.000000T0000Z-210318T1830Z/
Bryan GA-Liberty GA-Long GA-Tattnall GA-
229 PM EDT Thu Mar 18 2021
...THE SEVERE THUNDERSTORM WARNING FOR BRYAN...LIBERTY...LONG AND
TATTNALL COUNTIES WILL EXPIRE AT 230 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and have exited the warned area. Therefore the warning will
be allowed to expire.
LAT...LON 3216 8156 3195 8133 3172 8186 3185 8189
3191 8196
TIME...MOT...LOC 1829Z 238DEG 56KT 3203 8155
$$
RFMThe office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 18, 2:55 PM EDT | Tornado Warning | CHS | Bryan, Chatham | 21 min |
Nearby
Severe 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.