Alert archive / South Carolina / Areal Flood Advisories in 2013

Areal Flood Advisory 21, NWS Wilmington, NC

June 7, 2013Marlboro County, South Carolina

NWS Wilmington, NC issued this areal flood advisory at Jun 7, 2013, 11:21 PM EDT for Marlboro County, South Carolina. It was in force for 114 min.

The area

The counties it named.

The facts

Issued: Jun 7, 2013, 11:21 PM EDT (03:21 UTC)
Expired: Jun 8, 2013, 1:15 AM EDT
In force: 114 min
Issued by: NWS Wilmington, NC
Area: Storm-based polygon

County Marlboro County, SC

The radar

The Wilmington radar (KLTX), 134 km from the middle of the area, began a volume at 03:22 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 00:00Z, 3.4 hours before the alert went out and 166 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: 569 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 702 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: -61 m²/s²
0-3 km storm-relative helicity: -33 m²/s²
Significant tornado parameter: -0.1
Supercell composite: -1.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory 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 areal flood advisory went out at Jun 7, 10:22 PM EDT, 59 minutes earlier.

Area forecast discussion, Jun 7, 10:22 PM EDT, 59 minutes before

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Hazardous weather outlook, Jun 7, 9:12 PM EDT, 2 hours 9 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 11:47 PM EDT	Special Weather Statement	ILM	Williamsburg	28 min
Jun 8, 11:04 AM EDT	River Flood Warning	ILM	Florence, Marion	11 days
Jun 8, 10:57 AM EDT	River Flood Warning	ILM	Bladen	4 days

Nearby

Areal Flood Advisories in South Carolina, 2013 Every areal flood advisory in 2013

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.