Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 84, NWS Columbia, SC

May 29, 2017Lincoln County, Georgia; McCormick County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at May 29, 2017, 4:51 PM EDT for Lincoln County, Georgia; McCormick County, South Carolina. It was in force for 54 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
May 29, 2017, 4:51 PM EDT (20:51 UTC)
Expired
May 29, 2017, 5:45 PM EDT
In force
54 min
Issued by
NWS Columbia, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Lincoln County, GA, McCormick County, SC

The radar

The Greer radar (KGSP), 120 km from the middle of the area, began a volume at 20:52 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
May 29, 5:27 PM EDTTSTM WND DMG3 Ssw Lincolnton, GALINCOLN COUNTY EMERGENCY MANAGER REPORTED TREES DOWN ON HWY 378.
May 29, 5:27 PM EDTHAIL 0.752 Ssw Lincolnton, GALINCOLN COUNTY EMERGENCY MANAGER REPORTED HAIL JUST LARGER THAN PENNY SIZE.
May 29, 5:50 PM EDTTSTM WND DMG1 S Plum Branch, SCHAM RADIO OPERATOR REPORTS TREES DOWN PLUM BRANCH RD/HWY 230.
May 29, 5:50 PM EDTHAIL 0.881 Ssw Plum Branch, SCHAM RADIO OPERATOR REPORTS NICKEL-SIZE HAIL ALONG PLUM BRANCH ROAD NEAR BEAVER CREEK RANGE.

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
May 29, 3:15 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.9 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, Peachtre/Fal Fld, GA at 12:00Z on 2017-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 27 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2017-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -82 square meters per square second.19395878Sfc1 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
27 J/kg
Mixed-layer CIN
-236 J/kg
Mixed-layer LCL
1043 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
-82 m²/s²
0-3 km storm-relative helicity
-88 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

048 
WUUS52 KCAE 292051
SVRCAE
GAC181-SCC065-292145-
/O.NEW.KCAE.SV.W.0084.170529T2051Z-170529T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
451 PM EDT MON MAY 29 2017

The National Weather Service in Columbia has issued a

* Severe Thunderstorm Warning for...
  Lincoln County in east central Georgia...
  Central McCormick County in central South Carolina...

* Until 545 PM EDT

* At 451 PM EDT, a severe thunderstorm was located over Washington,
  or 22 miles northwest of Thomson, moving east at 30 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  McCormick, Lincolnton, Plum Branch, Willington and Modoc. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3398 8260 3396 8257 3398 8258 3401 8236
      3369 8217 3368 8223 3369 8224 3368 8228
      3370 8233 3367 8238 3366 8250 3382 8259
      3383 8260 3386 8257 3387 8258 3386 8261
      3397 8264
TIME...MOT...LOC 2051Z 261DEG 27KT 3374 8272 

HAIL...1.00IN
WIND...60MPH
 
$$

awp
2 follow-up statements
860 
WWUS52 KCAE 292058
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
458 PM EDT MON MAY 29 2017

GAC181-SCC065-292145-
/O.CON.KCAE.SV.W.0084.000000T0000Z-170529T2145Z/
Lincoln GA-McCormick SC-
458 PM EDT MON MAY 29 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR LINCOLN AND CENTRAL MCCORMICK COUNTIES...

At 454 PM EDT, a severe thunderstorm was located near Washington, or
21 miles northwest of Thomson, moving east at 30 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
McCormick, Lincolnton, Plum Branch, Willington and Modoc. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

If on or near Strom Thurmond Lake, get away from the water and move 
indoors or inside a vehicle. remember, lightning can strike out to 
15 miles from the parent thunderstorm. If you can hear thunder, you 
are close enough to be struck by lightning. Move to safe shelter 
now!  Do not be caught on the water in a thunderstorm.

Persons in Elijah Clark State Park should prepare for severe weather.

&&

LAT...LON 3398 8260 3396 8257 3398 8258 3401 8236
      3369 8217 3368 8223 3369 8224 3368 8228
      3370 8233 3367 8238 3366 8250 3382 8259
      3383 8260 3386 8257 3387 8258 3386 8261
      3397 8264
TIME...MOT...LOC 2054Z 261DEG 27KT 3375 8268 

HAIL...1.00IN
WIND...60MPH
 
$$

awp
558 
WWUS52 KCAE 292115
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
515 PM EDT MON MAY 29 2017

GAC181-SCC065-292145-
/O.CON.KCAE.SV.W.0084.000000T0000Z-170529T2145Z/
Lincoln GA-McCormick SC-
515 PM EDT MON MAY 29 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR LINCOLN AND CENTRAL MCCORMICK COUNTIES...

At 514 PM EDT, a severe thunderstorm was located over Lincolnton, or
21 miles north of Thomson, moving east at 30 mph.

HAZARD...70 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings. 

Locations impacted include...
McCormick, Lincolnton, Plum Branch, Willington and Modoc. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This thunderstorm is capable of producing all types of severe weather
including extremely large hail, destructive straight line winds and
tornadoes. Move quickly to a safe shelter, such as an interior room,
a bathroom or closet or basement.

If on or near Strom thurmond Lake, get away from the water and move 
indoors or inside a vehicle. remember, lightning can strike out to 
15 miles from the parent thunderstorm. If you can hear thunder, you 
are close enough to be struck by lightning. Move to safe shelter 
now!  Do not be caught on the water in a thunderstorm.

Persons in Elijah Clark State Park should prepare for severe weather.

&&

LAT...LON 3398 8260 3396 8257 3398 8258 3401 8236
      3369 8217 3368 8223 3369 8224 3368 8228
      3370 8233 3367 8238 3366 8250 3382 8259
      3383 8260 3386 8257 3387 8258 3386 8261
      3397 8264
TIME...MOT...LOC 2114Z 261DEG 27KT 3377 8250 

HAIL...1.00IN
WIND...70MPH
 
$$

awp

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 4:42 PM EDTSpecial Weather StatementCAELincoln63 min
May 29, 5:11 PM EDTSevere Thunderstorm WarningCAEColumbia, McDuffie64 min
May 29, 5:35 PM EDTSevere Thunderstorm WarningCAELincoln55 min
May 29, 6:12 PM EDTSevere Thunderstorm WarningCAEColumbia63 min
May 29, 6:31 PM EDTSevere Thunderstorm WarningCAELincoln59 min
May 29, 6:49 PM EDTSevere Thunderstorm WarningCAEColumbia, McDuffie41 min
May 28, 8:09 PM EDTSevere Thunderstorm WarningCAECalhoun, Lexington, Orangeburg, Sumter42 min
May 28, 8:44 PM EDTSevere Thunderstorm WarningCAEClarendon, Sumter31 min
May 29, 5:53 PM EDTSpecial Weather StatementCAELexington52 min
May 29, 6:15 PM EDTSevere Thunderstorm WarningCAEEdgefield, Lexington, Newberry, Saluda60 min
May 29, 6:55 PM EDTSevere Thunderstorm WarningCAEAiken, Calhoun, Lexington, Richland65 min
May 29, 7:11 PM EDTSevere Thunderstorm WarningCAELexington, Richland, Saluda64 min
May 29, 7:32 PM EDTSevere Thunderstorm WarningCAEKershaw, Lee, Richland, Sumter28 min
May 29, 7:48 PM EDTFlash Flood WarningCAELexington, Richland57 min
May 29, 7:52 PM EDTSevere Thunderstorm WarningCAEKershaw, Lee, Richland, Sumter53 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2017Severe Thunderstorm Warnings in South Carolina, 2017Every severe thunderstorm warning in 2017

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.