Alert archive / South Carolina / Lake Wind Advisories in 2017
Lake Wind Advisory 21, NWS Columbia, SC
NWS Columbia, SC issued this lake wind advisory at Dec 24, 2017, 12:01 PM EST for 5 counties in Georgia; 16 counties in South Carolina. It took effect at Dec 24, 2017, 10:00 PM EST. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Dec 24, 2017, 12:01 PM EST (17:01 UTC)
- In effect from
- Dec 24, 2017, 10:00 PM EST
- Expired
- Dec 25, 2017, 7:00 AM EST
- In force
- 9 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 17:03 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, 5.0 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.
- Mixed-layer CAPE
- 187 J/kg
- Mixed-layer CIN
- -195 J/kg
- Mixed-layer LCL
- 643 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 121 m²/s²
- 0-3 km storm-relative helicity
- 117 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
458 WWUS72 KCAE 241701 NPWCAE URGENT - WEATHER MESSAGE National Weather Service Columbia SC 1201 PM EST Sun Dec 24 2017 GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041- 250115- /O.NEW.KCAE.LW.Y.0021.171225T0300Z-171225T1200Z/ Lincoln-McDuffie-Columbia-Richmond-Burke-Lancaster-Chesterfield- McCormick-Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington- Richland-Lee-Aiken-Sumter-Barnwell-Orangeburg-Calhoun-Clarendon- Bamberg- Including the cities of Lincolnton, Thomson, Martinez, Evans, Hephzibah, Waynesboro, Lancaster, Elgin, Lancaster Mill, Cheraw, Pageland, Mccormick, Newberry, Winnsboro, Winnsboro Mills, Camden, Lugoff, Edgefield, Johnston, Saluda, Ridge Spring, Seven Oaks, West Columbia, Cayce, Lexington, Red Bank, Oak Grove, Columbia, Bishopville, Aiken, North Augusta, Sumter, Barnwell, Williston, Blackville, Orangeburg, Brookdale, St. Matthews, Manning, Summerton, Bamberg, and Denmark 1201 PM EST Sun Dec 24 2017 ...LAKE WIND ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 7 AM EST MONDAY... * WINDS...West around 15 knots with gusts up to 25 knots. * TIMING...Late this evening through Monday morning. * IMPACTS...Strong winds will create rough chop on area lakes making conditions difficult for small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Lake Wind Advisory indicates that winds will cause rough chop on area lakes. Small boats will be especially prone to capsizing. && $$
1 follow-up statement
618 WWUS72 KCAE 250100 NPWCAE URGENT - WEATHER MESSAGE National Weather Service Columbia SC 800 PM EST Sun Dec 24 2017 GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041- 251200- /O.CON.KCAE.LW.Y.0021.171225T0300Z-171225T1200Z/ Lincoln-McDuffie-Columbia-Richmond-Burke-Lancaster-Chesterfield- McCormick-Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington- Richland-Lee-Aiken-Sumter-Barnwell-Orangeburg-Calhoun-Clarendon- Bamberg- Including the cities of Lincolnton, Thomson, Martinez, Evans, Hephzibah, Waynesboro, Lancaster, Elgin, Lancaster Mill, Cheraw, Pageland, Mccormick, Newberry, Winnsboro, Winnsboro Mills, Camden, Lugoff, Edgefield, Johnston, Saluda, Ridge Spring, Seven Oaks, West Columbia, Cayce, Lexington, Red Bank, Oak Grove, Columbia, Bishopville, Aiken, North Augusta, Sumter, Barnwell, Williston, Blackville, Orangeburg, Brookdale, St. Matthews, Manning, Summerton, Bamberg, and Denmark 800 PM EST Sun Dec 24 2017 ...LAKE WIND ADVISORY IN EFFECT FROM 10 PM TONIGHT TO 7 AM EST MONDAY... * WINDS...West around 15 knots with gusts up to 25 knots. * TIMING...Tonight through Monday morning. * IMPACTS...Strong winds will create rough chop on area lakes making conditions difficult for small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Lake Wind Advisory indicates that winds will cause rough chop on area lakes. Small boats will be especially prone to capsizing. && $$
Nearby
Lake Wind Advisories in South Carolina, 2017Lake Wind Advisories in Georgia, 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.