Alert archive / Georgia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 8, NWS Columbia, SC

March 20, 2018Burke County, Georgia

NWS Columbia, SC issued this severe thunderstorm warning at Mar 20, 2018, 2:26 AM EDT for Burke County, Georgia. It was in force for 79 min. 4 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 20, 2018, 2:26 AM EDT (06:26 UTC)
Expired
Mar 20, 2018, 3:45 AM EDT
In force
79 min
Issued by
NWS Columbia, SC
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Burke County, GA

The radar

The Charleston,SC radar (KCLX), 103 km from the middle of the area, began a volume at 06:29 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

TimeReportWhereRemark
Mar 20, 3:03 AM EDTHAIL 18 Wnw Sardis, GAUTILITY WORKER REPORTED QUARTER SIZE HAIL IN THE ALEXANDER COMMUNITY.
Mar 20, 3:04 AM EDTTSTM WND DMG7 Nw Sardis, GAPLANTERS ELECTRIC COOP REPORTED TREES DOWN ON POWER LINES JUST NORTHEAST OF THE ALEXANDER COMMUNITY NEAR GRAY ROAD.
Mar 20, 3:05 AM EDTHAIL 0.887 Wnw Sardis, GAFIRE DEPT REPORTED NICKEL SIZED HAIL AND DAMAGE TO A GUTTER SPOUT AT BURKE COUNTY FIRE STATION NUMBER 10.
Mar 20, 3:06 AM EDTTSTM WND DMG7 Wnw Sardis, GABURKE COUNTY DISPATCH REPORTED DOWNED POWERLINES ON HIGHWAY 24 NEAR ALEXANDER MUNNERLYN ROAD.

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.

IssuedProductOfficeLasted
Mar 20, 1:51 AM EDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 6.4 hours before the alert went out and 195 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.

Skew-T log-pSkew-T log-p diagram, Charleston AFB, SC at 00:00Z on 2018-03-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 50 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 00:00Z on 2018-03-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 99 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

The text

As transmitted.

245 
WUUS52 KCAE 200626
SVRCAE
GAC033-200745-
/O.NEW.KCAE.SV.W.0008.180320T0626Z-180320T0745Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
226 AM EDT TUE MAR 20 2018

The National Weather Service in Columbia has issued a

* Severe Thunderstorm Warning for...
  Burke County in east central Georgia...

* Until 345 AM EDT

* At 225 AM EDT, likely severe thunderstorms were approaching the
  western border of Burke County. Movement was east near 45 mph. 

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to roofs, siding, and trees. 

* Locations impacted include...
  Waynesboro, Midville and Vidette. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection seek shelter inside a sturdy building and stay
away from windows.

&&

LAT...LON 3283 8231 3293 8227 3308 8229 3318 8225
      3317 8179 3293 8181 3295 8182 3295 8186
      3292 8196 3292 8208 3288 8213 3281 8215
      3280 8221
TIME...MOT...LOC 0625Z 271DEG 40KT 3305 8238 

HAIL...<.75IN
WIND...60MPH
 
$$
4 follow-up statements
271 
WWUS52 KCAE 200643
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
243 AM EDT TUE MAR 20 2018

GAC033-200745-
/O.CON.KCAE.SV.W.0008.000000T0000Z-180320T0745Z/
Burke GA-
243 AM EDT TUE MAR 20 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 AM EDT
FOR BURKE COUNTY...

At 241 AM EDT, there were strong radar indications of a severe 
thunderstorm in the Rosier area of western Burke County. 
Movement was east near 45 mph. 

HAZARD...60 to 80 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to roofs, siding, and trees. 

Locations impacted include...
Waynesboro, Midville and Vidette. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection seek shelter inside a sturdy building and stay
away from windows. Severe thunderstorms can product tornadoes
with little advance warning.

&&

LAT...LON 3283 8231 3293 8227 3308 8229 3318 8225
      3317 8179 3293 8181 3295 8182 3295 8186
      3292 8196 3292 8208 3288 8213 3281 8215
      3280 8221
TIME...MOT...LOC 0641Z 271DEG 40KT 3305 8216 

HAIL...<.75IN
WIND...60MPH
 
$$
765 
WWUS52 KCAE 200653
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
253 AM EDT TUE MAR 20 2018

GAC033-200745-
/O.CON.KCAE.SV.W.0008.000000T0000Z-180320T0745Z/
Burke GA-
253 AM EDT TUE MAR 20 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 AM EDT
FOR SOUTHWESTERN BURKE COUNTY...

At 251 AM EDT, a severe thunderstorm was located just west and
southwest of Waynesboro, moving east at 45 mph. Radar indications
were close to the criteria for issuance of a tornado warning. 
This is a dangerous storm.

HAZARD...70 to 80 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings. 

Locations impacted include...
Waynesboro and Midville. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection seek shelter inside a sturdy building and stay
away from windows.

&&

LAT...LON 3283 8231 3293 8227 3305 8220 3317 8210
      3317 8179 3293 8181 3295 8182 3295 8186
      3292 8196 3292 8208 3288 8213 3281 8215
      3280 8221
TIME...MOT...LOC 0651Z 271DEG 40KT 3305 8202 

HAIL...<.75IN
WIND...70MPH
 
$$
916 
WWUS52 KCAE 200704
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
304 AM EDT TUE MAR 20 2018

GAC033-200745-
/O.CON.KCAE.SV.W.0008.000000T0000Z-180320T0745Z/
Burke GA-
304 AM EDT TUE MAR 20 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 AM EDT
FOR CENTRAL BURKE COUNTY...

At 302 AM EDT, a severe thunderstorm was in the Idlewood area
just south of Waynesboro moving eastward near 45 mph and 
toward the Alexander area. Radar indications were close to 
the criteria for issuance of a tornado warning. This is a 
very dangerous storm.

HAZARD...80 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely. 

Locations impacted include...
Waynesboro, Idlewood and Alexander.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection seek shelter inside a sturdy building and stay
away from windows.

&&

LAT...LON 3283 8231 3293 8227 3304 8214 3317 8203
      3317 8179 3293 8181 3295 8182 3295 8186
      3292 8196 3292 8208 3288 8213 3281 8215
      3280 8221
TIME...MOT...LOC 0702Z 271DEG 40KT 3305 8187 

HAIL...<.75IN
WIND...80MPH
 
$$
001 
WWUS52 KCAE 200711
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
311 AM EDT TUE MAR 20 2018

GAC033-200745-
/O.CON.KCAE.SV.W.0008.000000T0000Z-180320T0745Z/
Burke GA-
311 AM EDT TUE MAR 20 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 AM EDT
FOR SOUTHWESTERN BURKE COUNTY...

At 310 AM EDT, a severe thunderstorm was nearing the
Alexander area and moving east near 45 mph and toward
the Girard and Sardis areas.

This is a very dangerous storm.

HAZARD...80 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely. 

Locations impacted include...
Alexander.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection seek shelter inside a sturdy building and stay
away from windows.

&&

LAT...LON 3283 8231 3293 8227 3297 8205 3309 8189
      3317 8179 3293 8181 3295 8182 3295 8186
      3292 8196 3292 8208 3288 8213 3281 8215
      3280 8221
TIME...MOT...LOC 0710Z 271DEG 40KT 3305 8176 

HAIL...<.75IN
WIND...80MPH
 
$$

The office that day

Everything else NWS Columbia, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 20, 1:05 AM EDTSpecial Weather StatementCAEBurke, Columbia, McDuffie, Richmond55 min
Mar 20, 1:32 AM EDTSevere Thunderstorm WarningCAEColumbia, McDuffie, Richmond58 min
Mar 20, 1:56 AM EDTSevere Thunderstorm WarningCAEBurke, Columbia, Richmond52 min
Mar 20, 2:30 AM EDTSevere Thunderstorm WarningCAEBurke, Richmond60 min
Mar 20, 3:08 AM EDTSevere Thunderstorm WarningCAEBurke29 min
Mar 20, 12:15 PM EDTLake Wind AdvisoryCAEBurke, Columbia, Lincoln, McDuffie, Richmond32 hr

Nearby

Severe Thunderstorm Warnings in Georgia, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.