Alert archive / North Carolina / Air Stagnation Advisories in 2007
Air Stagnation Advisory 21, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this air stagnation advisory at Aug 13, 2007, 3:41 PM EDT for 7 counties in North Carolina; Chester County, York County, South Carolina. It took effect at Aug 14, 2007, 6:00 AM EDT. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Aug 13, 2007, 3:41 PM EDT (19:41 UTC)
- In effect from
- Aug 14, 2007, 6:00 AM EDT
- Expired
- Aug 14, 2007, 9:00 PM EDT
- In force
- 15 hr
- Issued by
- NWS Greenville-Spartanburg, SC
Counties Cabarrus County, NC, Gaston County, NC, Iredell County, NC, Lincoln County, NC, Mecklenburg County, NC, Rowan County, NC, Union County, NC, Chester County, SC, York County, SC
The radar
The Greer radar (KGSP), 128 km from the middle of the area, began a volume at 19:41 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 12:00Z, 7.7 hours before the alert went out and 127 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
- 1921 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
Nearby
Air Stagnation Advisories in North Carolina, 2007Air Stagnation Advisories in South Carolina, 2007Every air stagnation 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.