Alert archive / Georgia / Mesoscale Discussions in 2013
Mesoscale Discussion 245
The Storm Prediction Center issued this mesoscale discussion at Mar 5, 2013, 4:47 PM EST for 43 counties in Georgia; Oconee County, South Carolina. It was in force for 88 min.
The area
The outline as issued.
The facts
- Issued
- Mar 5, 2013, 4:47 PM EST (21:47 UTC)
- Expired
- Mar 5, 2013, 6:15 PM EST
- In force
- 88 min
- Issued by
- the Storm Prediction Center
All 44 counties
Banks County, GA, Barrow County, GA, Bibb County, GA, Butts County, GA, Clarke County, GA, Clayton County, GA, Coweta County, GA, Crawford County, GA, Dawson County, GA, DeKalb County, GA, Fayette County, GA, Forsyth County, GA, Franklin County, GA, Fulton County, GA, Gwinnett County, GA, Habersham County, GA, Hall County, GA, Harris County, GA, Henry County, GA, Jackson County, GA, Jasper County, GA, Lamar County, GA, Lumpkin County, GA, Madison County, GA, Meriwether County, GA, Monroe County, GA, Morgan County, GA, Muscogee County, GA, Newton County, GA, Oconee County, GA, Peach County, GA, Pike County, GA, Rabun County, GA, Rockdale County, GA, Spalding County, GA, Stephens County, GA, Talbot County, GA, Taylor County, GA, Towns County, GA, Union County, GA, Upson County, GA, Walton County, GA, White County, GA, Oconee County, SC
The radar
The Atlanta radar (KFFC), 63 km from the middle of the area, began a volume at 21:48 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.8 hours before the alert went out and 59 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
- 710 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 364 m²/s²
- 0-3 km storm-relative helicity
- 349 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 |
|---|---|---|---|---|
| Mar 5, 2:11 PM EST | Mesoscale Discussion | SPC | Bartow, Carroll, Catoosa, Chattahoochee, Chattooga, Cherokee and 36 more | 2 hr |
| Mar 5, 2:31 PM EST | Severe Thunderstorm Watch | SPC | Banks, Barrow, Bartow, Bibb, Butts, Carroll and 62 more | 4 hr |
| Mar 5, 6:20 PM EST | Mesoscale Discussion | SPC | Baldwin, Ben Hill, Bibb, Bleckley, Calhoun, Columbia and 42 more | 55 min |
Nearby
Mesoscale Discussions in Georgia, 2013Mesoscale Discussions in South Carolina, 2013Every mesoscale discussion in 2013
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.