Alert archive / North Carolina / High Surf Advisories in 2023

High Surf Advisory 2, NWS Wilmington, NC

March 31, 2023Brunswick County, North Carolina; Horry County, South Carolina

NWS Wilmington, NC issued this high surf advisory at Mar 31, 2023, 6:49 PM EDT for Brunswick County, North Carolina; Horry County, South Carolina. It took effect at Apr 1, 2023, 9:00 AM EDT. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Mar 31, 2023, 6:49 PM EDT (22:49 UTC)
In effect from
Apr 1, 2023, 9:00 AM EDT
Expired
Apr 1, 2023, 9:32 PM EDT
In force
13 hr
Issued by
NWS Wilmington, NC

Counties Brunswick County, NC, Horry County, SC

The radar

The Wilmington radar (KLTX), 16 km from the middle of the area, began a volume at 22:51 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.8 hours before the alert went out and 263 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, Greensboro/Hi Pt, NC at 12:00Z on 2023-03-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2023-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1545 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
162 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 31, 2:40 PM EDTWind AdvisoryILMBladen, Brunswick, Columbus, New Hanover, Pender, Robeson28 hr
Mar 31, 2:41 PM EDTGale WarningILM31 hr

Nearby

High Surf Advisories in North Carolina, 2023High Surf Advisories in South Carolina, 2023Every high surf advisory in 2023

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.