Alert archive / Georgia / Mesoscale Discussions in 2013
Mesoscale Discussion 696
The Storm Prediction Center issued this mesoscale discussion at May 19, 2013, 12:35 PM EDT for 45 counties in Georgia. It was in force for 55 min.
The area
The outline as issued.
The facts
- Issued
- May 19, 2013, 12:35 PM EDT (16:35 UTC)
- Expired
- May 19, 2013, 1:30 PM EDT
- In force
- 55 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 45 counties
Baker County, GA, Berrien County, GA, Brooks County, GA, Calhoun County, GA, Chattahoochee County, GA, Clayton County, GA, Colquitt County, GA, Cook County, GA, Coweta County, GA, Crawford County, GA, Crisp County, GA, Dooly County, GA, Dougherty County, GA, Fayette County, GA, Grady County, GA, Harris County, GA, Houston County, GA, Irwin County, GA, Lamar County, GA, Lanier County, GA, Lee County, GA, Lowndes County, GA, Macon County, GA, Marion County, GA, Meriwether County, GA, Mitchell County, GA, Muscogee County, GA, Peach County, GA, Pike County, GA, Randolph County, GA, Schley County, GA, Spalding County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taylor County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Troup County, GA, Turner County, GA, Upson County, GA, Webster County, GA, Wilcox County, GA, Worth County, GA
The radar
The Robins AFB radar (KJGX), 88 km from the middle of the area, began a volume at 16:35 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, 4.6 hours before the alert went out and 133 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
- 1352 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 550 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.1
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 |
|---|---|---|---|---|
| May 19, 12:52 PM EDT | Severe Thunderstorm Watch | SPC | Appling, Atkinson, Bacon, Baker, Baldwin, Ben Hill and 79 more | 6 hr |
| May 19, 3:55 PM EDT | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 53 more | 35 min |
Nearby
Mesoscale Discussions in Georgia, 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.