Alert archive / Georgia / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 9, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at Mar 20, 2018, 2:30 AM EDT for Burke County, Richmond County, Georgia; Aiken County, Barnwell County, South Carolina. It was in force for 60 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
- Mar 20, 2018, 2:30 AM EDT (06:30 UTC)
- Expired
- Mar 20, 2018, 3:30 AM EDT
- In force
- 60 min
- Issued by
- NWS Columbia, SC
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Burke County, GA, Richmond County, GA, Aiken County, SC, Barnwell County, SC
The radar
The Charleston,SC radar (KCLX), 78 km from the middle of the area, began a volume at 06:34 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 20, 1:51 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 00:00Z, 6.5 hours before the alert went out and 154 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
- 50 J/kg
- Mixed-layer CIN
- -156 J/kg
- Mixed-layer LCL
- 793 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 234 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
170
WUUS52 KCAE 200630
SVRCAE
GAC033-245-SCC003-011-200745-
/O.NEW.KCAE.SV.W.0009.180320T0630Z-180320T0745Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
230 AM EDT TUE MAR 20 2018
The National Weather Service in Columbia has issued a
* Severe Thunderstorm Warning for...
Northeastern Burke County in east central Georgia...
Southeastern Richmond County in east central Georgia...
Central Barnwell County in central South Carolina...
Southwestern Aiken County in central South Carolina...
* Until 345 AM EDT
* At 229 AM EDT, likely severe thunderstorms in
Richmond County were moving eastward near 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Barnwell, Savannah River Site, Clearwater, Williston, New Ellenton,
Jackson, Snelling and Elko.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection seek shelter inside a sturdy building and stay
away from windows.
&&
LAT...LON 3317 8198 3350 8195 3344 8135 3312 8139
3316 8154 3310 8162 3305 8157 3306 8156
3305 8156 3305 8154 3303 8157 3304 8158
TIME...MOT...LOC 0629Z 270DEG 43KT 3334 8188
HAIL...<.75IN
WIND...60MPH
$$2 follow-up statements
564
WWUS52 KCAE 200713
SVSCAE
Severe Weather Statement
National Weather Service Columbia SC
313 AM EDT TUE MAR 20 2018
GAC245-SCC003-200722-
/O.CAN.KCAE.SV.W.0009.000000T0000Z-180320T0745Z/
Richmond GA-Aiken SC-
313 AM EDT TUE MAR 20 2018
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN RICHMOND AND
SOUTHWESTERN AIKEN COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved
out of the area.
A severe thunderstorm watch remains in effect until 900 AM EDT for
east central Georgia...and central South Carolina.
LAT...LON 3311 8181 3336 8147 3344 8135 3312 8139
3316 8154 3310 8162 3305 8157 3306 8156
3305 8156 3305 8154 3303 8157 3304 8158
TIME...MOT...LOC 0712Z 270DEG 43KT 3334 8127
$$
GAC033-SCC011-200745-
/O.CON.KCAE.SV.W.0009.000000T0000Z-180320T0745Z/
Burke GA-Barnwell SC-
313 AM EDT TUE MAR 20 2018
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 AM EDT
FOR EAST CENTRAL BURKE AND WESTERN BARNWELL COUNTIES...
At 312 AM EDT, likely severe thunderstorms were just west
of Snelling, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Barnwell, Williston, Snelling and Elko.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection seek shelter inside a sturdy building and stay
away from windows.
&&
LAT...LON 3311 8181 3336 8147 3344 8135 3312 8139
3316 8154 3310 8162 3305 8157 3306 8156
3305 8156 3305 8154 3303 8157 3304 8158
TIME...MOT...LOC 0712Z 270DEG 43KT 3334 8127
HAIL...<.75IN
WIND...60MPH
$$245
WWUS52 KCAE 200730
SVSCAE
Severe Weather Statement
National Weather Service Columbia SC
330 AM EDT TUE MAR 20 2018
GAC033-SCC011-200739-
/O.CAN.KCAE.SV.W.0009.000000T0000Z-180320T0745Z/
Burke GA-Barnwell SC-
330 AM EDT TUE MAR 20 2018
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BURKE AND WESTERN
BARNWELL COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has weakened.
A severe thunderstorm watch remains in effect until 900 AM EDT for
east central Georgia...and central South Carolina.
LAT...LON 3311 8181 3336 8147 3344 8135 3312 8139
3316 8154 3310 8162 3305 8157 3306 8156
3305 8156 3305 8154 3303 8157 3304 8158
TIME...MOT...LOC 0723Z 270DEG 43KT 3334 8102
$$The office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 20, 1:05 AM EDT | Special Weather Statement | CAE | Burke, Columbia, McDuffie, Richmond | 55 min |
| Mar 20, 1:32 AM EDT | Severe Thunderstorm Warning | CAE | Columbia, McDuffie, Richmond | 58 min |
| Mar 20, 1:56 AM EDT | Severe Thunderstorm Warning | CAE | Burke, Columbia, Richmond | 52 min |
| Mar 20, 2:26 AM EDT | Severe Thunderstorm Warning | CAE | Burke | 79 min |
| Mar 20, 3:08 AM EDT | Severe Thunderstorm Warning | CAE | Burke | 29 min |
| Mar 20, 12:15 PM EDT | Lake Wind Advisory | CAE | Burke, Columbia, Lincoln, McDuffie, Richmond | 32 hr |
| Mar 20, 7:56 PM EDT | Special Weather Statement | CAE | Lancaster | 49 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2018Severe Thunderstorm Warnings in South Carolina, 2018Every severe thunderstorm warning in 2018
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.