Alert archive / North Carolina / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 64, NWS Wilmington, NC

July 15, 2017Brunswick County, Columbus County, North Carolina; Horry County, South Carolina

NWS Wilmington, NC issued this severe thunderstorm warning at Jul 15, 2017, 7:01 PM EDT for Brunswick County, Columbus County, North Carolina; Horry County, South Carolina. It was in force for 30 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: Jul 15, 2017, 7:01 PM EDT (23:01 UTC)
Expired: Jul 15, 2017, 7:31 PM EDT
In force: 30 min
Issued by: NWS Wilmington, NC
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Brunswick County, NC, Columbus County, NC, Horry County, SC

The radar

The Wilmington radar (KLTX), 16 km from the middle of the area, began a volume at 23:05 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

Newport, NC (KMHX), launched 12:00Z, 11.0 hours before the alert went out and 178 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1322 J/kg
Mixed-layer CIN: -74 J/kg
Mixed-layer LCL: 1001 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 132 m²/s²
0-3 km storm-relative helicity: 104 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

508 
WUUS52 KILM 152301
SVRILM
NCC019-047-SCC051-152345-
/O.NEW.KILM.SV.W.0064.170715T2301Z-170715T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wilmington NC
701 PM EDT SAT JUL 15 2017

The National Weather Service in Wilmington has issued a

* Severe Thunderstorm Warning for...
  Southwestern Brunswick County in southeastern North Carolina...
  South central Columbus County in southeastern North Carolina...
  East central Horry County in northeastern South Carolina...

* Until 745 PM EDT

* At 700 PM EDT, a severe thunderstorm was located over Dulah, or 13
  miles north of Little River, moving east at 25 mph.

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

  SOURCE...Radar indicated. 

  IMPACT...Expect damage trees and power lines. 

* Locations impacted include...
  Bethel, Freeland, Grissettown, Nakina, Old Dock, Exum, Bughill,
  Longwood, Russtown, Pireway, Ash, Dulah, Goretown, Crusoe Island
  and Mollie.

This includes US Route 17 in Brunswick County between mile markers 3
and 13.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3391 7840 3397 7887 3412 7886 3423 7843
TIME...MOT...LOC 2300Z 262DEG 23KT 3406 7871 

HAIL...0.88IN
WIND...60MPH
 
$$

JDW

1 follow-up statement

189 
WWUS52 KILM 152331
SVSILM

Severe Weather Statement
National Weather Service Wilmington NC
731 PM EDT SAT JUL 15 2017

NCC019-047-SCC051-152341-
/O.CAN.KILM.SV.W.0064.000000T0000Z-170715T2345Z/
Brunswick NC-Columbus NC-Horry SC-
731 PM EDT SAT JUL 15 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN BRUNSWICK...SOUTH
CENTRAL COLUMBUS AND EAST CENTRAL HORRY 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 gusty winds are
still possible with this thunderstorm.

LAT...LON 3391 7840 3397 7887 3412 7886 3423 7843
TIME...MOT...LOC 2329Z 262DEG 23KT 3409 7847 

$$

JDW

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 11:40 AM EDT	Heat Advisory	ILM	Bladen, Brunswick, Columbus, New Hanover, Pender, Robeson	7 hr
Jul 15, 5:29 PM EDT	Special Weather Statement	ILM	Robeson	61 min
Jul 15, 6:30 PM EDT	Special Weather Statement	ILM	Bladen, Columbus, Robeson	60 min
Jul 15, 6:47 PM EDT	Severe Thunderstorm Warning	ILM	Bladen, Robeson	31 min
Jul 15, 7:24 PM EDT	Severe Thunderstorm Warning	ILM	Bladen, Columbus, Pender	35 min
Jul 15, 4:32 PM EDT	Special Weather Statement	ILM	Darlington	58 min
Jul 15, 5:01 PM EDT	Severe Thunderstorm Warning	ILM	Darlington	29 min
Jul 15, 5:07 PM EDT	Special Weather Statement	ILM	Marlboro	53 min
Jul 15, 5:10 PM EDT	Areal Flood Advisory	ILM	Darlington	3 hr
Jul 15, 5:46 PM EDT	Severe Thunderstorm Warning	ILM	Marlboro	29 min
Jul 15, 6:16 PM EDT	Special Weather Statement	ILM	Horry	59 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2017 Severe Thunderstorm Warnings in South Carolina, 2017 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.