Alert archive / South Carolina / Tornado Warnings in 2017
Tornado Warning 18, NWS Wilmington, NC
NWS Wilmington, NC issued this tornado warning at Sep 11, 2017, 10:18 PM EDT for Georgetown County, Horry County, South Carolina. It was in force for 27 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
- Sep 11, 2017, 10:18 PM EDT (02:18 UTC)
- Expired
- Sep 11, 2017, 10:45 PM EDT
- In force
- 27 min
- Issued by
- NWS Wilmington, NC
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties Georgetown County, SC, Horry County, SC
The radar
The Wilmington radar (KLTX), 75 km from the middle of the area, began a volume at 02:22 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 00:00Z, 2.3 hours before the alert went out and 114 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
- 458 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 652 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 334 m²/s²
- 0-3 km storm-relative helicity
- 383 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 6.7
The text
As transmitted.
572
WFUS52 KILM 120218
TORILM
SCC043-051-120245-
/O.NEW.KILM.TO.W.0018.170912T0218Z-170912T0245Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Wilmington NC
1018 PM EDT MON SEP 11 2017
The National Weather Service in Wilmington has issued a
* Tornado Warning for...
Northeastern Georgetown County in northeastern South Carolina...
South central Horry County in northeastern South Carolina...
* Until 1045 PM EDT
* At 1017 PM EDT, a severe thunderstorm capable of producing a
tornado was located near Murrells Inlet, moving northwest at 30
mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
* Locations impacted include...
Surfside Beach, Garden City, Murrells Inlet, Burgess, Yauhannah,
Bucksport and Waccamaw Community Hospital.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3360 7924 3373 7910 3360 7897 3356 7901
3354 7902 3353 7904 3352 7904 3352 7905
TIME...MOT...LOC 0217Z 129DEG 27KT 3354 7900
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
Ekster2 follow-up statements
402
WWUS52 KILM 120232
SVSILM
Severe Weather Statement
National Weather Service Wilmington NC
1032 PM EDT MON SEP 11 2017
SCC043-051-120245-
/O.CON.KILM.TO.W.0018.000000T0000Z-170912T0245Z/
Georgetown SC-Horry SC-
1032 PM EDT MON SEP 11 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 PM EDT FOR
NORTHEASTERN GEORGETOWN AND SOUTHWESTERN HORRY COUNTIES...
At 1032 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Burgess, or near Garden City, moving northwest at
30 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Bucksport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3363 7904 3359 7908 3365 7919 3372 7911
TIME...MOT...LOC 0232Z 131DEG 27KT 3362 7907
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
mle388
WWUS52 KILM 120241
SVSILM
Severe Weather Statement
National Weather Service Wilmington NC
1041 PM EDT MON SEP 11 2017
SCC043-051-120251-
/O.EXP.KILM.TO.W.0018.000000T0000Z-170912T0245Z/
Georgetown SC-Horry SC-
1041 PM EDT MON SEP 11 2017
...THE TORNADO WARNING FOR NORTHEASTERN GEORGETOWN AND SOUTHWESTERN
HORRY COUNTIES WILL EXPIRE AT 1045 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning will be allowed to expire. However gusty winds
and heavy rain are still possible with this thunderstorm.
LAT...LON 3363 7904 3359 7908 3365 7919 3372 7911
TIME...MOT...LOC 0241Z 129DEG 27KT 3366 7913
$$
eksterThe office that day
Everything else NWS Wilmington, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 9:43 PM EDT | Special Marine Warning | ILM | 47 min | |
| Sep 11, 10:03 PM EDT | Special Marine Warning | ILM | 27 min | |
| Sep 11, 10:37 PM EDT | Special Marine Warning | ILM | 38 min | |
| Sep 11, 11:26 PM EDT | Severe Thunderstorm Warning | ILM | Horry | 34 min |
| Sep 12, 1:16 AM EDT | Areal Flood Advisory | ILM | Horry | 119 min |
| Sep 12, 3:00 AM EDT | Areal Flood Advisory | ILM | Dillon, Horry | 3 hr |
| Sep 12, 3:13 AM EDT | River Flood Warning | ILM | Horry | 6 days |
| Sep 12, 4:11 AM EDT | Small Craft Advisory | ILM | 26 hr | |
| Sep 12, 5:17 AM EDT | Special Marine Warning | ILM | 28 min | |
| Sep 12, 7:09 AM EDT | Special Marine Warning | ILM | 111 min |
Nearby
Tornado Warnings in South Carolina, 2017Every tornado warning in 2017Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.