Alert archive / South Carolina / Flash Flood Warnings in 2024

Flash Flood Warning 24, NWS Wilmington, NC

August 9, 2024Brunswick County, North Carolina; Georgetown County, Horry County, South Carolina

NWS Wilmington, NC issued this flash flood warning at Aug 9, 2024, 2:31 AM EDT for Brunswick County, North Carolina; Georgetown County, Horry County, South Carolina. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 9, 2024, 2:31 AM EDT (06:31 UTC)
Expired: Aug 9, 2024, 7:30 AM EDT
In force: 5 hr
Issued by: NWS Wilmington, NC
Area: Storm-based polygon
Flood severity: None

Counties Brunswick County, NC, Georgetown County, SC, Horry County, SC

The radar

The Wilmington radar (KLTX), 44 km from the middle of the area, began a volume at 06:32 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, 6.5 hours before the alert went out and 146 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: 102 J/kg
Mixed-layer CIN: -87 J/kg
Mixed-layer LCL: 956 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 79 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wilmington, NC wrote its last area forecast discussion before this flash flood warning went out at Aug 8, 9:45 PM EDT, 4 hours 46 minutes earlier.

Area forecast discussion, Aug 8, 9:45 PM EDT, 4 hours 46 minutes before

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Hazardous weather outlook, Aug 8, 4:00 PM EDT, 10 hours 31 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 12:37 AM EDT	Special Marine Warning	ILM		38 min
Aug 9, 4:16 AM EDT	Flash Flood Warning	ILM	Brunswick, New Hanover, Pender	4 hr
Aug 9, 1:31 PM EDT	Areal Flood Advisory	ILM	Brunswick, New Hanover, Pender	89 min
Aug 9, 2:01 PM EDT	Special Marine Warning	ILM		59 min
Aug 9, 3:06 PM EDT	Areal Flood Advisory	ILM	New Hanover	54 min
Aug 9, 3:55 PM EDT	Areal Flood Advisory	ILM	Pender	80 min
Aug 9, 4:03 PM EDT	Special Marine Warning	ILM		57 min
Aug 9, 4:32 PM EDT	Flash Flood Warning	ILM	Pender	3 hr
Aug 9, 4:37 PM EDT	Areal Flood Advisory	ILM	Columbus	83 min
Aug 9, 5:06 PM EDT	Special Marine Warning	ILM		54 min
Aug 9, 5:17 PM EDT	Areal Flood Advisory	ILM	Bladen, Pender	66 min
Aug 9, 5:29 PM EDT	Flash Flood Warning	ILM	Bladen, Pender	2 hr
Aug 9, 5:35 PM EDT	Areal Flood Advisory	ILM	New Hanover	85 min
Aug 9, 6:03 PM EDT	Special Marine Warning	ILM		87 min
Aug 9, 6:21 PM EDT	Areal Flood Advisory	ILM	New Hanover, Pender	70 min
Aug 9, 6:48 PM EDT	Flash Flood Warning	ILM	New Hanover, Pender	3 hr
Aug 9, 6:52 PM EDT	Special Marine Warning	ILM		53 min
Aug 9, 7:41 PM EDT	Special Marine Warning	ILM		64 min
Aug 9, 1:31 AM EDT	Flash Flood Warning Considerable damage threat	ILM	Georgetown, Williamsburg	6 hr
Aug 9, 2:48 PM EDT	Areal Flood Advisory	ILM	Georgetown, Horry	87 min
Aug 9, 3:14 PM EDT	Areal Flood Advisory	ILM	Horry	91 min
Aug 9, 5:02 PM EDT	Areal Flood Advisory	ILM	Georgetown	74 min
Aug 9, 7:04 PM EDT	Areal Flood Advisory	ILM	Williamsburg	42 min

Nearby

Flash Flood Warnings in South Carolina, 2024 Flash Flood Warnings in North Carolina, 2024 Every flash flood warning in 2024

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.