Alert archive / South Carolina / Lake Wind Advisories in 2009

Lake Wind Advisory 10, NWS Columbia, SC

March 1, 200916 counties in South Carolina; 5 counties in Georgia

NWS Columbia, SC issued this lake wind advisory at Mar 1, 2009, 2:33 PM EST for 16 counties in South Carolina; 5 counties in Georgia. It took effect at Mar 2, 2009, 10:00 PM EST. It was in force for .

The area

The counties it named.

The facts

Issued: Mar 1, 2009, 2:33 PM EST (19:33 UTC)
In effect from: Mar 2, 2009, 10:00 PM EST
Expired: Mar 1, 2009, 4:27 PM EST
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 19:36 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

Charleston AFB, SC (KCHS), launched 12:00Z, 7.6 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: 1 J/kg
Mixed-layer CIN: -120 J/kg
Mixed-layer LCL: 696 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 168 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 Mar 1, 1:46 PM EST, 47 minutes earlier.

Area forecast discussion, Mar 1, 1:46 PM EST, 47 minutes before

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Hazardous weather outlook, Mar 1, 5:04 AM EST, 9 hours 29 minutes before

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In the hours before

Special weather statement, Mar 1, 9:06 AM EST, 5 hours 27 minutes before

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Special weather statement, Mar 1, 9:43 AM EST, 4 hours 50 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 28, 11:56 PM EST	Severe Thunderstorm Warning	CAE	Aiken	49 min
Mar 1, 3:57 AM EST	Winter Storm Warning	CAE	Aiken, Chesterfield, Edgefield, Fairfield, Kershaw, Lee and 6 more	22 hr
Mar 1, 3:57 AM EST	Winter Weather Advisory	CAE	Bamberg, Barnwell, Calhoun, Clarendon	18 hr
Mar 1, 3:31 PM EST	River Flood Watch	CAE	Calhoun, Lexington, Richland	20 hr
Mar 1, 4:27 PM EST	Lake Wind Advisory	CAE	Aiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon and 10 more	18 hr

Nearby

Lake Wind Advisories in South Carolina, 2009 Lake Wind Advisories in Georgia, 2009 Every 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.