Alert archive / South Carolina / Lake Wind Advisories in 2017

Lake Wind Advisory 11, NWS Charleston, SC

August 28, 2017Berkeley County, South Carolina

NWS Charleston, SC issued this lake wind advisory at Aug 28, 2017, 3:33 PM EDT for Berkeley County, South Carolina. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Aug 28, 2017, 3:33 PM EDT (19:33 UTC)
Expired
Aug 29, 2017, 3:24 AM EDT
In force
12 hr
Issued by
NWS Charleston, SC

County Berkeley County, SC

The radar

The Charleston,SC radar (KCLX), 118 km from the middle of the area, began a volume at 19:36 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 333 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 2017-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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 2017-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.19395878Sfc1 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
7 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
630 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
224 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 28, 2:48 PM EDTAreal Flood AdvisoryCHSBerkeley, Charleston87 min
Aug 28, 3:13 PM EDTAreal Flood AdvisoryCHSBerkeley, Charleston62 min
Aug 28, 3:21 PM EDTAreal Flood AdvisoryCHSBerkeley, Charleston, Dorchester54 min
Aug 28, 4:12 PM EDTAreal Flood AdvisoryCHSBerkeley, Charleston, Dorchester2 hr
Aug 28, 6:14 PM EDTAreal Flood AdvisoryCHSBerkeley, Charleston61 min

Nearby

Lake Wind Advisories in South Carolina, 2017Every lake wind advisory in 2017

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.