Alert archive / Georgia / Mesoscale Discussions in 2017
Mesoscale Discussion 1244
The Storm Prediction Center issued this mesoscale discussion at Jul 6, 2017, 12:15 PM CDT for 6 states. It was in force for 60 min.
The area
The outline as issued.
The facts
- Issued
- Jul 6, 2017, 12:15 PM CDT (17:15 UTC)
- Expired
- Jul 6, 2017, 1:15 PM CDT
- In force
- 60 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
All 64 counties
Cherokee County, AL, DeKalb County, AL, Etowah County, AL, Jackson County, AL, Madison County, AL, Marshall County, AL, Bartow County, GA, Catoosa County, GA, Chattooga County, GA, Cherokee County, GA, Cobb County, GA, Dade County, GA, Dawson County, GA, Fannin County, GA, Floyd County, GA, Forsyth County, GA, Gilmer County, GA, Gordon County, GA, Habersham County, GA, Hall County, GA, Haralson County, GA, Lumpkin County, GA, Murray County, GA, Paulding County, GA, Pickens County, GA, Polk County, GA, Rabun County, GA, Towns County, GA, Union County, GA, Walker County, GA, White County, GA, Whitfield County, GA, Bell County, KY, Cherokee County, NC, Clay County, NC, Graham County, NC, Haywood County, NC, Jackson County, NC, Macon County, NC, Swain County, NC, Anderson County, TN, Blount County, TN, Bradley County, TN, Campbell County, TN, Claiborne County, TN, Cocke County, TN, Grainger County, TN, Greene County, TN, Hamblen County, TN, Hamilton County, TN, Hancock County, TN, Hawkins County, TN, Jefferson County, TN, Knox County, TN, Loudon County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Polk County, TN, Roane County, TN, Sevier County, TN, Union County, TN, Lee County, VA, Scott County, VA
The radar
The Northeast Alabama radar (KHTX), 86 km from the middle of the area, began a volume at 17:16 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, 5.3 hours before the alert went out and 176 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
- 1341 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 947 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -90 m²/s²
- 0-3 km storm-relative helicity
- -78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 4:22 PM CDT | Mesoscale Discussion | SPC | Banks, Barrow, Clarke, Columbia, DeKalb, Elbert and 18 more | 113 min |
| Jul 6, 3:52 PM CDT | Mesoscale Discussion | SPC | Bell, Casey, Clay, Clinton, Cumberland, Jackson and 13 more | 113 min |
| Jul 5, 9:22 PM CDT | Mesoscale Discussion | SPC | Bedford, Cheatham, Davidson, Dickson, Giles, Hickman and 15 more | 53 min |
Nearby
Mesoscale Discussions in Georgia, 2017Mesoscale Discussions in Tennessee, 2017Mesoscale Discussions in North Carolina, 2017Every mesoscale discussion 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.