Alert archive / North Carolina / Special Weather Statements in 2021

Special Weather Statement, NWS Wilmington, NC

August 1, 2021Brunswick County, North Carolina

NWS Wilmington, NC issued this special weather statement at Aug 1, 2021, 9:13 PM EDT for Brunswick County, North Carolina. It was in force for 47 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
Aug 1, 2021, 9:13 PM EDT (01:13 UTC)
Expired
Aug 1, 2021, 10:00 PM EDT
In force
47 min
Issued by
NWS Wilmington, NC

County Brunswick County, NC

The radar

The Wilmington radar (KLTX), 36 km from the middle of the area, began a volume at 01:17 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 00:00Z, 1.2 hours before the alert went out and 145 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, Newport, NC at 00:00Z on 2021-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 156 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, Newport, NC at 00:00Z on 2021-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -47 square meters per square second.193958Sfc1 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
156 J/kg
Mixed-layer CIN
-109 J/kg
Mixed-layer LCL
985 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
-47 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The text

As transmitted.

079 
WWUS82 KILM 020113
SPSILM

Special Weather Statement
National Weather Service Wilmington NC
913 PM EDT Sun Aug 1 2021
 
NCZ108>110-020200-
Inland Brunswick NC-Coastal New Hanover NC-Coastal Brunswick NC-
913 PM EDT Sun Aug 1 2021

...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN AND FREQUENT LIGHTNING 
WILL CONTINUE ALONG THE SOUTHEASTERN BRUNSWICK COAST and BALD HEAD 
ISLAND UNTIL 1000 PM EDT...

At 913 PM EDT, Doppler radar was tracking a line of strong 
thunderstorm from near Long Beach to Bald Head Island, moving east 
at 30 mph.

Winds in excess of 40 mph, frequent lightning, and very heavy rain 
will be possible with these storm. Some ponding of water is possible 
in low-lying and poorly drained areas. 


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.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3391 7795 3386 7796 3387 7801 3387 7802
      3389 7802 3389 7803 3391 7812 3391 7830
      3397 7831 3399 7791
TIME...MOT...LOC 0110Z 261DEG 28KT 3391 7823 

$$

HAWKINS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 1, 8:04 PM EDTSpecial Marine WarningILM41 min
Aug 1, 8:47 PM EDTSpecial Weather StatementILMColumbus28 min
Aug 1, 9:18 PM EDTSpecial Marine WarningILM57 min
Aug 1, 9:41 PM EDTSpecial Marine WarningILM34 min
Aug 1, 10:13 PM EDTSpecial Marine WarningILM47 min
Aug 1, 10:49 PM EDTSpecial Marine WarningILM23 min
Aug 1, 10:53 PM EDTSpecial Marine WarningILM67 min
Aug 2, 3:45 PM EDTAreal Flood AdvisoryILMNew Hanover58 min
Aug 1, 9:07 PM EDTSpecial Weather StatementILMWilliamsburg53 min
Aug 1, 9:33 PM EDTAreal Flood AdvisoryILMGeorgetown, Horry, Marion, Williamsburg87 min
Aug 1, 10:10 PM EDTSpecial Weather StatementILMGeorgetown, Williamsburg50 min

Nearby

Special Weather Statements in North Carolina, 2021Every special weather statement 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.