Alert archive / South Carolina / Lake Wind Advisories in 2007

Lake Wind Advisory 22, NWS Columbia, SC

April 14, 200716 counties in South Carolina; 5 counties in Georgia

NWS Columbia, SC issued this lake wind advisory at Apr 14, 2007, 3:53 PM EDT for 16 counties in South Carolina; 5 counties in Georgia. It took effect at Apr 15, 2007, 8:00 PM EDT. It was in force for .

The area

The counties it named.

The facts

Issued: Apr 14, 2007, 3:53 PM EDT (19:53 UTC)
In effect from: Apr 15, 2007, 8:00 PM EDT
Expired: Apr 15, 2007, 3:48 PM EDT
In force
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 19:51 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, 7.9 hours before the alert went out and 162 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1360 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 228 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this lake wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Columbia, SC wrote its last area forecast discussion before this lake wind advisory went out at Apr 14, 1:47 PM EDT, 2 hours 6 minutes earlier.

Area forecast discussion, Apr 14, 1:47 PM EDT, 2 hours 6 minutes before

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Hazardous weather outlook, Apr 14, 1:04 PM EDT, 2 hours 49 minutes before

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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 14, 7:52 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield	23 min
Apr 14, 7:17 PM EDT	Severe Thunderstorm Warning	CAE	Burke, Richmond	28 min
Apr 14, 7:32 PM EDT	Severe Thunderstorm Warning	CAE	Columbia	28 min

Nearby

Lake Wind Advisories in South Carolina, 2007 Lake Wind Advisories in Georgia, 2007 Every lake wind 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.