Alert archive / Georgia / Mesoscale Discussions in 2007
Mesoscale Discussion 33
The Storm Prediction Center issued this mesoscale discussion at Jan 7, 2007, 6:34 PM EST for 19 counties in Georgia; Abbeville County, McCormick County, South Carolina. It was in force for 86 min.
The area
The outline as issued.
The facts
- Issued
- Jan 7, 2007, 6:34 PM EST (23:34 UTC)
- Expired
- Jan 7, 2007, 8:00 PM EST
- In force
- 86 min
- Issued by
- the Storm Prediction Center
All 21 counties
Barrow County, GA, Clarke County, GA, DeKalb County, GA, Elbert County, GA, Forsyth County, GA, Fulton County, GA, Greene County, GA, Gwinnett County, GA, Hart County, GA, Jackson County, GA, Lincoln County, GA, Madison County, GA, Morgan County, GA, Newton County, GA, Oconee County, GA, Oglethorpe County, GA, Rockdale County, GA, Walton County, GA, Wilkes County, GA, Abbeville County, SC, McCormick County, SC
The radar
The Atlanta radar (KFFC), 131 km from the middle of the area, began a volume at 23:36 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.6 hours before the alert went out and 125 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
- 667 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 187 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 7, 12:31 PM EST | Mesoscale Discussion | SPC | Carroll, Chattahoochee, Clayton, Coweta, Douglas, Fayette and 8 more | 2 hr |
| Jan 7, 3:51 PM EST | Mesoscale Discussion | SPC | Baldwin, Bibb, Bleckley, Butts, Carroll, Chattahoochee and 49 more | 84 min |
| Jan 7, 4:12 PM EST | Tornado Watch | SPC | Baker, Baldwin, Ben Hill, Bibb, Bleckley, Butts and 67 more | 7 hr |
Nearby
Mesoscale Discussions in Georgia, 2007Mesoscale Discussions in South Carolina, 2007Every mesoscale discussion 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.