Alert archive / South Carolina / Heat Advisories in 2007

Heat Advisory 4, NWS Wilmington, NC

August 10, 20076 counties in South Carolina; Bladen County, Columbus County, Robeson County, North Carolina

NWS Wilmington, NC issued this heat advisory at Aug 10, 2007, 3:38 PM EDT for 6 counties in South Carolina; Bladen County, Columbus County, Robeson County, North Carolina. It took effect at Aug 11, 2007, 3:33 AM EDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: Aug 10, 2007, 3:38 PM EDT (19:38 UTC)
In effect from: Aug 11, 2007, 3:33 AM EDT
Expired: Aug 11, 2007, 7:00 PM EDT
In force: 15 hr
Issued by: NWS Wilmington, NC

Counties Bladen County, NC, Columbus County, NC, Robeson County, NC, Darlington County, SC, Dillon County, SC, Florence County, SC, Marion County, SC, Marlboro County, SC, Williamsburg County, SC

The radar

The Wilmington radar (KLTX), 91 km from the middle of the area, began a volume at 19:39 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 12:00Z, 7.6 hours before the alert went out and 233 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: 2847 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 645 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 7.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this heat 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 heat advisory went out at Aug 10, 3:33 PM EDT, 5 minutes earlier.

Area forecast discussion, Aug 10, 3:33 PM EDT, 5 minutes before

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Hazardous weather outlook, Aug 10, 1:47 PM EDT, 1 hour 51 minutes before

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In the hours before

Special weather statement, Aug 10, 2:25 PM EDT, 1 hour 13 minutes before

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Nearby

Heat Advisories in South Carolina, 2007 Heat Advisories in North Carolina, 2007 Every heat advisory in 2007

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.