Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 31, NWS Wilmington, NC
NWS Wilmington, NC issued this severe thunderstorm warning at Jun 19, 2021, 4:58 PM EDT for Horry County, Marion County, South Carolina. It was in force for 11 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
- Jun 19, 2021, 4:58 PM EDT (20:58 UTC)
- Expired
- Jun 19, 2021, 5:09 PM EDT
- In force
- 11 min
- Issued by
- NWS Wilmington, NC
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Horry County, SC, Marion County, SC
The radar
The Wilmington radar (KLTX), 57 km from the middle of the area, began a volume at 21:00 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 nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 9.0 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.
- Mixed-layer CAPE
- 20 J/kg
- Mixed-layer CIN
- -146 J/kg
- Mixed-layer LCL
- 1313 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
446
WUUS52 KILM 192058
SVRILM
SCC051-067-192130-
/O.NEW.KILM.SV.W.0031.210619T2058Z-210619T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wilmington NC
458 PM EDT Sat Jun 19 2021
The National Weather Service in Wilmington has issued a
* Severe Thunderstorm Warning for...
Northwestern Horry County in northeastern South Carolina...
Eastern Marion County in northeastern South Carolina...
* Until 530 PM EDT.
* At 458 PM EDT, a severe thunderstorm was located over Galivants
Ferry, or 12 miles south of Mullins, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is possible. Expect wind
damage to trees and power lines.
* Locations impacted include...
Horry, Loris, Galivants Ferry, Bayboro, Allsbrook, Rains, Green
Sea, Aynor and Loris Community Hospital.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3415 7889 3397 7883 3392 7929 3409 7935
3421 7897
TIME...MOT...LOC 2058Z 255DEG 25KT 3403 7924
HAIL...1.00IN
WIND...60MPH
$$
MBB1 follow-up statement
521
WWUS52 KILM 192109
SVSILM
Severe Weather Statement
National Weather Service Wilmington NC
509 PM EDT Sat Jun 19 2021
SCC051-067-192119-
/O.CAN.KILM.SV.W.0031.000000T0000Z-210619T2130Z/
Horry SC-Marion SC-
509 PM EDT Sat Jun 19 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN HORRY AND EASTERN
MARION COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However heavy rain is
still possible with this thunderstorm.
LAT...LON 3415 7889 3397 7883 3392 7929 3409 7935
3421 7897
TIME...MOT...LOC 2108Z 255DEG 25KT 3405 7914
$$
MBBThe office that day
Everything else NWS Wilmington, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 8:00 PM EDT | Beach Hazards Statement | ILM | Georgetown, Horry | 24 hr |
| Jun 19, 11:08 AM EDT | Tropical Storm Watch | ILM | Georgetown, Horry | 42 hr |
| Jun 19, 3:03 PM EDT | Special Weather Statement | ILM | Darlington | 27 min |
| Jun 19, 4:09 PM EDT | Special Weather Statement | ILM | Darlington | 36 min |
| Jun 19, 4:31 PM EDT | Special Weather Statement | ILM | Marion | 29 min |
| Jun 19, 7:59 PM EDT | Beach Hazards Statement | ILM | Georgetown, Horry | 24 hr |
Nearby
Severe Thunderstorm Warnings in South 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.