Alert archive / Georgia / Mesoscale Discussions in 2017
Mesoscale Discussion 915
The Storm Prediction Center issued this mesoscale discussion at May 29, 2017, 2:27 PM EDT for 59 counties in Georgia; 12 counties in South Carolina. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- May 29, 2017, 2:27 PM EDT (18:27 UTC)
- Expired
- May 29, 2017, 5:00 PM EDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 71 counties
Baldwin County, GA, Barrow County, GA, Bibb County, GA, Burke County, GA, Butts County, GA, Clarke County, GA, Clayton County, GA, Columbia County, GA, Coweta County, GA, Crawford County, GA, DeKalb County, GA, Douglas County, GA, Elbert County, GA, Fayette County, GA, Fulton County, GA, Glascock County, GA, Greene County, GA, Gwinnett County, GA, Hancock County, GA, Harris County, GA, Heard County, GA, Henry County, GA, Houston County, GA, Jackson County, GA, Jasper County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Jones County, GA, Lamar County, GA, Lincoln County, GA, Macon County, GA, Madison County, GA, Marion County, GA, McDuffie County, GA, Meriwether County, GA, Monroe County, GA, Morgan County, GA, Muscogee County, GA, Newton County, GA, Oconee County, GA, Oglethorpe County, GA, Peach County, GA, Pike County, GA, Putnam County, GA, Richmond County, GA, Rockdale County, GA, Spalding County, GA, Talbot County, GA, Taliaferro County, GA, Taylor County, GA, Troup County, GA, Twiggs County, GA, Upson County, GA, Walton County, GA, Warren County, GA, Washington County, GA, Wilkes County, GA, Wilkinson County, GA, Abbeville County, SC, Aiken County, SC, Allendale County, SC, Bamberg County, SC, Barnwell County, SC, Calhoun County, SC, Edgefield County, SC, Greenwood County, SC, Lexington County, SC, McCormick County, SC, Orangeburg County, SC, Saluda County, SC
The radar
The Robins AFB radar (KJGX), 73 km from the middle of the area, began a volume at 18:26 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, 6.5 hours before the alert went out and 139 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
- 27 J/kg
- Mixed-layer CIN
- -236 J/kg
- Mixed-layer LCL
- 1043 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- -82 m²/s²
- 0-3 km storm-relative helicity
- -88 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 |
|---|---|---|---|---|
| May 29, 3:15 PM EDT | Severe Thunderstorm Watch | SPC | Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 66 more | 7 hr |
| May 29, 4:59 PM EDT | Mesoscale Discussion | SPC | Baldwin, Banks, Barrow, Bibb, Bleckley, Burke and 56 more | 2 hr |
| May 29, 7:30 PM EDT | Mesoscale Discussion | SPC | Baldwin, Banks, Barrow, Bibb, Burke, Butts and 52 more | 60 min |
| May 28, 8:20 PM EDT | Mesoscale Discussion | SPC | Bamberg, Berkeley, Calhoun, Charleston, Clarendon, Dillon and 8 more | 85 min |
Nearby
Mesoscale Discussions in Georgia, 2017Mesoscale Discussions in South 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.