Alert archive / North Carolina / Special Weather Statements in 2017

Special Weather Statement, NWS Wilmington, NC

October 23, 2017Brunswick County, New Hanover County, Pender County, North Carolina

NWS Wilmington, NC issued this special weather statement at Oct 23, 2017, 11:45 PM EDT for Brunswick County, New Hanover County, Pender County, North Carolina. It was in force for 60 min. 1 report 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: Oct 23, 2017, 11:45 PM EDT (03:45 UTC)
Expired: Oct 24, 2017, 12:45 AM EDT
In force: 60 min
Issued by: NWS Wilmington, NC

Counties Brunswick County, NC, New Hanover County, NC, Pender County, NC

The radar

The Wilmington radar (KLTX), 50 km from the middle of the area, began a volume at 03:50 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

Time	Report	Where	Remark
Oct 23, 11:45 PM EDT	TORNADO	2 Wnw Prospect, NC	SNAPPED TREES ALONG A PATH THREE-TENTHS OF A MILE LONG AND 50 YARDS WIDE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Newport, NC (KMHX), launched 00:00Z, 3.8 hours before the alert went out and 117 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: 531 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 678 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 206 m²/s²
0-3 km storm-relative helicity: 195 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.2

Open this sounding in Storm Lab

The text

As transmitted.

364 
WWUS82 KILM 240345
SPSILM

Special Weather Statement
National Weather Service Wilmington NC
1145 PM EDT MON OCT 23 2017
 
NCZ096-099-105>110-240445-
Inland New Hanover NC-Inland Brunswick NC-Coastal Pender NC-
Columbus NC-Inland Pender NC-Bladen NC-Coastal New Hanover NC-
Coastal Brunswick NC-
1145 PM EDT MON OCT 23 2017

...SPECIAL WEATHER STATEMENT...

At 1143 PM EDT, Doppler radar was tracking an area of strong 
thunderstorms moving north from Brunswick county to Pender county. 
The strongest storm was over Honey Island, or 14 miles north of 
Shallotte, moving northeast at 35 mph.

Winds in excess of 30 mph will be possible with these storms.

Locations impacted include...
Wilmington, Leland, Oak Island, Carolina Beach, Burgaw, Shallotte,
Wrightsville Beach, Kure Beach, Surf City, Holden Beach, Ocean Isle
Beach, Caswell Beach, Bald Head Island, Snows Cut, South Masonboro
Island, Figure Eight Island, Yaupon Beach, Rich Inlet, North
Masonboro Island and Hampstead.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Thunderstorms can pose a variety of threats including gusty winds,
small hail, cloud to ground lightning, and localized flooding. It is
recommended that you remain indoors until the storm passes.

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3432 7769 3417 7783 3386 7796 3386 7800
      3389 7803 3391 7814 3391 7834 3388 7847
      3401 7863 3472 7811 3472 7772 3469 7767
      3448 7758 3444 7752
TIME...MOT...LOC 0343Z 216DEG 38KT 3418 7834 

$$

RGZ

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 23, 8:11 PM EDT	Special Weather Statement	ILM	Florence, Williamsburg	49 min
Oct 23, 9:05 PM EDT	Special Weather Statement	ILM	Florence	40 min
Oct 23, 9:26 PM EDT	Severe Thunderstorm Warning	ILM	Horry	49 min
Oct 23, 9:57 PM EDT	Severe Thunderstorm Warning	ILM	Horry	38 min
Oct 23, 10:06 PM EDT	Special Weather Statement	ILM	Horry	24 min
Oct 23, 10:20 PM EDT	Tornado Warning	ILM	Horry	25 min
Oct 23, 10:27 PM EDT	Special Weather Statement	ILM	Dillon	63 min
Oct 24, 12:35 AM EDT	Special Marine Warning	ILM		55 min
Oct 24, 12:46 AM EDT	Special Marine Warning	ILM		59 min
Oct 24, 1:46 AM EDT	Special Marine Warning	ILM		89 min
Oct 23, 10:08 PM EDT	Special Weather Statement	ILM	Columbus	67 min
Oct 23, 10:18 PM EDT	Special Weather Statement	ILM	Pender	57 min
Oct 23, 11:46 PM EDT	Tornado Warning	ILM	Brunswick, Pender	33 min
Oct 24, 12:50 AM EDT	Special Weather Statement	ILM	New Hanover, Pender	40 min

Nearby

Special Weather Statements in North Carolina, 2017 Every special weather statement 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.