Alert archive / North Carolina / Lake Wind Advisories in 2011
Lake Wind Advisory 30, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this lake wind advisory at Nov 17, 2011, 3:53 AM EST for 13 counties in North Carolina. It took effect at Nov 17, 2011, 10:00 AM EST. It was in force for 11 hr.
The area
The counties it named.
The facts
- Issued
- Nov 17, 2011, 3:53 AM EST (08:53 UTC)
- In effect from
- Nov 17, 2011, 10:00 AM EST
- Expired
- Nov 17, 2011, 9:22 PM EST
- In force
- 11 hr
- Issued by
- NWS Greenville-Spartanburg, SC
Counties Avery County, NC, Buncombe County, NC, Burke County, NC, Caldwell County, NC, Haywood County, NC, Henderson County, NC, Madison County, NC, McDowell County, NC, Mitchell County, NC, Polk County, NC, Rutherford County, NC, Transylvania County, NC, Yancey County, NC
The radar
The Greer radar (KGSP), 87 km from the middle of the area, began a volume at 08:53 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
Roanoke, VA (KRNK), launched 00:00Z, 8.9 hours before the alert went out and 300 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 573 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- -61 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Greenville-Spartanburg, SC wrote its last area forecast discussion before this lake wind advisory went out at Nov 16, 6:29 PM EST, 9 hours 24 minutes earlier.
Area forecast discussion, Nov 16, 6:29 PM EST, 9 hours 24 minutes before
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</html>Hazardous weather outlook, Nov 16, 6:37 PM EST, 9 hours 16 minutes before
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</html>Nearby
Lake Wind Advisories in North Carolina, 2011Every lake wind advisory in 2011
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.