Alert archive / South Carolina / Heat Advisories in 2011
Heat Advisory 4, NWS Wilmington, NC
NWS Wilmington, NC issued this heat advisory at Jul 11, 2011, 3:33 PM EDT for 8 counties in South Carolina; 6 counties in North Carolina. It took effect at Jul 12, 2011, 11:00 AM EDT. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Jul 11, 2011, 3:33 PM EDT (19:33 UTC)
- In effect from
- Jul 12, 2011, 11:00 AM EDT
- Expired
- Jul 12, 2011, 9:00 PM EDT
- In force
- 10 hr
- Issued by
- NWS Wilmington, NC
Counties Bladen County, NC, Brunswick County, NC, Columbus County, NC, New Hanover County, NC, Pender County, NC, Robeson County, NC, Darlington County, SC, Dillon County, SC, Florence County, SC, Georgetown County, SC, Horry County, SC, Marion County, SC, Marlboro County, SC, Williamsburg County, SC
The radar
The Wilmington radar (KLTX), 59 km from the middle of the area, began a volume at 19:33 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 12:00Z, 7.6 hours before the alert went out and 169 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.
- Mixed-layer CAPE
- 1493 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 682 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- -22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
Hazardous weather outlook, Jul 10, 3:53 PM EDT, 23 hours 40 minutes before
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</html>The office that day
Everything else NWS Wilmington, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 6:10 AM EDT | Dense Fog Advisory | ILM | Darlington, Dillon, Florence, Georgetown, Marion, Marlboro and 1 more | 3 hr |
| Jul 11, 9:29 AM EDT | Dense Smoke Advisory | ILM | New Hanover, Pender | 4 hr |
Nearby
Heat Advisories in South Carolina, 2011Heat Advisories in North Carolina, 2011Every heat advisory in 2011
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.