Alert archive / South Carolina / Heat Advisories in 2015

Heat Advisory 13, NWS Wilmington, NC

July 18, 20156 counties in North Carolina; 8 counties in South Carolina

NWS Wilmington, NC issued this heat advisory at Jul 18, 2015, 3:00 PM EDT for 6 counties in North Carolina; 8 counties in South Carolina. It took effect at Jul 19, 2015, 12:00 PM EDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Jul 18, 2015, 3:00 PM EDT (19:00 UTC)
In effect from
Jul 19, 2015, 12:00 PM EDT
Expired
Jul 19, 2015, 7:00 PM EDT
In force
7 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 19:00 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, 7.0 hours before the alert went out and 208 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, Newport, NC at 12:00Z on 2015-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 joules per kilogram.LCLLFCEL10008507005003002001001 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, Newport, NC at 12:00Z on 2015-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 square meters per square second.1939Sfc1 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
3 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
1225 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
23 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
Jul 18, 6:19 PM EDTSpecial Weather StatementILMBladen56 min
Jul 18, 6:41 PM EDTSpecial Weather StatementILMPender64 min
Jul 18, 3:46 PM EDTSpecial Weather StatementILMDillon, Marlboro59 min
Jul 18, 5:11 PM EDTSpecial Weather StatementILMDarlington, Dillon, Marlboro64 min
Jul 18, 6:21 PM EDTSpecial Weather StatementILMDillon54 min
Jul 18, 6:30 PM EDTSpecial Weather StatementILMLee60 min
Jul 18, 7:19 PM EDTSpecial Weather StatementILMHorry56 min

Nearby

Heat Advisories in South Carolina, 2015Heat Advisories in North Carolina, 2015Every heat advisory in 2015

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.