Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 15, NWS Wilmington, NC

May 4, 2021Darlington County, Dillon County, Marlboro County, South Carolina; Robeson County, North Carolina

NWS Wilmington, NC issued this severe thunderstorm warning at May 4, 2021, 5:57 PM EDT for Darlington County, Dillon County, Marlboro County, South Carolina; Robeson County, North Carolina. It was in force for 33 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 4, 2021, 5:57 PM EDT (21:57 UTC)
Expired
May 4, 2021, 6:30 PM EDT
In force
33 min
Issued by
NWS Wilmington, NC
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

Counties Robeson County, NC, Darlington County, SC, Dillon County, SC, Marlboro County, SC

The radar

The Wilmington radar (KLTX), 136 km from the middle of the area, began a volume at 21:58 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 4, 6:00 PM EDTTSTM WND DMG4 Ssw Tatum, SCSC PATROL REPORTS TREE DOWN ON ROADWAY AT SANDY GROVE RD AND HEBRON DUNBAR RD. TIME ESTIMATED VIA RADAR.
May 4, 6:00 PM EDTTSTM WND DMG5 Wnw Blenheim, SCSC PATROL REPORTS TREE DOWN ON ROADWAY AT ZION RD AND MARLBORO WAY. TIME ESTIMATED VIA RADAR.
May 4, 6:10 PM EDTTSTM WND DMG2 Nw Mccoll, SCSC PATROL REPORTS TREE DOWN ON ROADWAY AT SC-381 AND CHELSEA LANE. TIME ESTIMATED VIA RADAR.
May 4, 6:12 PM EDTTSTM WND DMGMccoll, SCBROADCAST REPORTER SHARED PICTURES OF A FALLEN TREE ON A CAR. TIME ESTIMATED VIA RADAR.

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 4, 4:56 PM EDTSevere Thunderstorm WatchSPC3 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.0 hours before the alert went out and 159 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, Greensboro/Hi Pt, NC at 12:00Z on 2021-05-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 463 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, Greensboro/Hi Pt, NC at 12:00Z on 2021-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 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
463 J/kg
Mixed-layer CIN
-235 J/kg
Mixed-layer LCL
935 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
87 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

133 
WUUS52 KILM 042157
SVRILM
NCC155-SCC031-033-069-042230-
/O.NEW.KILM.SV.W.0015.210504T2157Z-210504T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wilmington NC
557 PM EDT Tue May 4 2021

The National Weather Service in Wilmington has issued a

* Severe Thunderstorm Warning for...
  Northwestern Robeson County in southeastern North Carolina...
  Northwestern Dillon County in northeastern South Carolina...
  Northeastern Darlington County in northeastern South Carolina...
  Marlboro County in northeastern South Carolina...

* Until 630 PM EDT.

* At 557 PM EDT, a severe thunderstorm was located near
  Bennettsville, moving east at 55 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Bennettsville, Pembroke, Maxton, Mccoll, Rowland, Clio, Raemon,
  Mont Clare, Wallace, Wakulla, Chavistown, Purvis, Prospect, Dunbar,
  Minturn, Elrod, Society Hill, Gibson, Blenheim and Mcdonald.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 3484 7928 3456 7912 3436 7989 3449 7989
      3450 7987 3453 7984 3453 7983 3461 7981
      3461 7978 3464 7980 3465 7980 3466 7983
      3469 7987 3475 7990 3481 7990 3481 7968
      3463 7946 3477 7933 3482 7936 3484 7935
TIME...MOT...LOC 2157Z 252DEG 47KT 3469 7965 

HAIL...0.75IN
WIND...70MPH
 
$$

VAO
2 follow-up statements
505 
WWUS52 KILM 042213
SVSILM

Severe Weather Statement
National Weather Service Wilmington NC
613 PM EDT Tue May 4 2021

SCC031-042222-
/O.CAN.KILM.SV.W.0015.000000T0000Z-210504T2230Z/
Darlington SC-
613 PM EDT Tue May 4 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DARLINGTON COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
southeastern North Carolina...and northeastern South Carolina.

LAT...LON 3484 7928 3456 7912 3441 7972 3446 7975
      3449 7972 3454 7977 3461 7978 3465 7980
      3469 7987 3475 7990 3481 7990 3481 7968
      3463 7946 3477 7933 3484 7935
TIME...MOT...LOC 2212Z 251DEG 47KT 3467 7945 

$$

NCC155-SCC033-069-042230-
/O.CON.KILM.SV.W.0015.000000T0000Z-210504T2230Z/
Robeson NC-Dillon SC-Marlboro SC-
613 PM EDT Tue May 4 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHWESTERN ROBESON...NORTHWESTERN DILLON AND MARLBORO
COUNTIES...

At 612 PM EDT, a severe thunderstorm was located near Mccoll, or near
Laurinburg, moving east at 55 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Bennettsville, Pembroke, Maxton, Mccoll, Rowland, Clio, Raemon,
Wallace, Wakulla, Chavistown, Purvis, Prospect, Dunbar, Minturn,
Elrod, Gibson, Blenheim, Mcdonald, Tatum and Raynham.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3484 7928 3456 7912 3441 7972 3446 7975
      3449 7972 3454 7977 3461 7978 3465 7980
      3469 7987 3475 7990 3481 7990 3481 7968
      3463 7946 3477 7933 3484 7935
TIME...MOT...LOC 2212Z 251DEG 47KT 3467 7945 

HAIL...0.75IN
WIND...70MPH
 
$$

VAO
289 
WWUS52 KILM 042231
SVSILM

Severe Weather Statement
National Weather Service Wilmington NC
631 PM EDT Tue May 4 2021

NCC155-SCC033-069-042240-
/O.EXP.KILM.SV.W.0015.000000T0000Z-210504T2230Z/
Robeson NC-Dillon SC-Marlboro SC-
631 PM EDT Tue May 4 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN ROBESON...
NORTHWESTERN DILLON AND MARLBORO COUNTIES HAS EXPIRED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been allowed to expire.  However gusty
winds are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
southeastern North Carolina...and northeastern South Carolina.

Remember, a Severe Thunderstorm Warning still remains in effect for
north Dillon County and western Robeson County until 7:00 PM EDT.

LAT...LON 3484 7928 3456 7912 3441 7972 3446 7975
      3449 7972 3454 7977 3461 7978 3465 7980
      3469 7987 3475 7990 3481 7990 3481 7968
      3463 7946 3477 7933 3484 7935
TIME...MOT...LOC 2230Z 252DEG 47KT 3474 7919 

$$

VAO

The office that day

Everything else NWS Wilmington, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 3, 8:47 PM EDTSevere Thunderstorm WarningILMGeorgetown43 min
May 4, 4:50 PM EDTSpecial Weather StatementILMGeorgetown40 min
May 4, 5:08 PM EDTSevere Thunderstorm WarningILMDarlington, Marlboro52 min
May 4, 6:26 PM EDTSpecial Weather StatementILMDillon, Florence49 min
May 4, 6:30 PM EDTSevere Thunderstorm WarningILMDillon30 min
May 4, 7:04 PM EDTSevere Thunderstorm WarningILMFlorence, Williamsburg41 min
May 4, 7:42 PM EDTSevere Thunderstorm WarningILMFlorence, Georgetown, Marion, Williamsburg33 min
May 3, 9:04 PM EDTSpecial Marine WarningILM26 min
May 3, 9:31 PM EDTSpecial Marine WarningILM44 min
May 3, 10:14 PM EDTSpecial Marine WarningILM61 min
May 4, 6:12 AM EDTSmall Craft AdvisoryILM38 hr
May 4, 6:55 PM EDTSpecial Weather StatementILMBladen, Robeson35 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2021Severe Thunderstorm Warnings in North 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.