Alert archive / South Carolina / Lake Wind Advisories in 2009

Lake Wind Advisory 23, NWS Columbia, SC

November 11, 200916 counties in South Carolina; 5 counties in Georgia

NWS Columbia, SC issued this lake wind advisory at Nov 11, 2009, 3:46 AM EST for 16 counties in South Carolina; 5 counties in Georgia. It was in force for 43 hr.

The area

The counties it named.

The facts

Issued
Nov 11, 2009, 3:46 AM EST (08:46 UTC)
Expired
Nov 12, 2009, 11:00 PM EST
In force
43 hr
Issued by
NWS Columbia, SC
All 21 counties

Burke County, GA, Columbia County, GA, Lincoln County, GA, McDuffie County, GA, Richmond County, GA, Aiken County, SC, Bamberg County, SC, Barnwell County, SC, Calhoun County, SC, Chesterfield County, SC, Clarendon County, SC, Edgefield County, SC, Fairfield County, SC, Kershaw County, SC, Lee County, SC, Lexington County, SC, McCormick County, SC, Newberry County, SC, Richland County, SC, Saluda County, SC, Sumter County, SC

The radar

The Columbia radar (KCAE), 28 km from the middle of the area, began a volume at 08:46 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, 8.8 hours before the alert went out and 286 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, Greensboro/Hi Pt, NC at 00:00Z on 2009-11-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Greensboro/Hi Pt, NC at 00:00Z on 2009-11-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
575 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
426 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 11, 12:51 AM ESTRiver Flood WarningCAEEdgefield, McCormick52 hr
Nov 11, 3:09 AM ESTAreal Flood AdvisoryCAEAiken, Barnwell, Calhoun, Edgefield, Fairfield, Kershaw and 9 more3 hr
Nov 11, 5:43 AM ESTAreal Flood AdvisoryCAECalhoun, Chesterfield, Fairfield, Kershaw, Lancaster, Lee and 6 more3 hr
Nov 11, 8:26 AM ESTRiver Flood WarningCAEGreenwood, Newberry, Saluda3 days
Nov 11, 8:26 AM ESTRiver Flood WarningCAEGreenwood, Newberry, Saluda69 hr
Nov 11, 8:38 AM ESTRiver Flood AdvisoryCAELexington, Richland30 hr
Nov 11, 8:46 AM ESTAreal Flood AdvisoryCAECalhoun, Chesterfield, Clarendon, Kershaw, Lancaster, Lee and 3 more3 hr
Nov 11, 9:09 AM ESTRiver Flood WarningCAECalhoun, Lexington, Richland4 days
Nov 11, 10:52 AM ESTRiver Flood WarningCAECalhoun, Richland4 days
Nov 11, 10:52 AM ESTRiver Flood WarningCAEFairfield, Newberry64 hr
Nov 11, 12:17 PM ESTRiver Flood AdvisoryCAEChesterfield, Marlboro43 hr

Nearby

Lake Wind Advisories in South Carolina, 2009Lake Wind Advisories in Georgia, 2009Every lake wind advisory in 2009

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.