Alert archive / Georgia / Mesoscale Discussions in 2009
Mesoscale Discussion 24
The Storm Prediction Center issued this mesoscale discussion at Jan 7, 2009, 2:32 AM EST for 48 counties in Georgia; 15 counties in South Carolina. It was in force for 118 min.
The area
The outline as issued.
The facts
- Issued
- Jan 7, 2009, 2:32 AM EST (07:32 UTC)
- Expired
- Jan 7, 2009, 4:30 AM EST
- In force
- 118 min
- Issued by
- the Storm Prediction Center
All 63 counties
Baker County, GA, Baldwin County, GA, Bibb County, GA, Bleckley County, GA, Calhoun County, GA, Clay County, GA, Columbia County, GA, Crawford County, GA, Crisp County, GA, Dooly County, GA, Dougherty County, GA, Early County, GA, Elbert County, GA, Glascock County, GA, Greene County, GA, Hancock County, GA, Houston County, GA, Jasper County, GA, Jefferson County, GA, Johnson County, GA, Jones County, GA, Lee County, GA, Lincoln County, GA, Macon County, GA, Marion County, GA, McDuffie County, GA, Monroe County, GA, Morgan County, GA, Oglethorpe County, GA, Peach County, GA, Pulaski County, GA, Putnam County, GA, Quitman County, GA, Randolph County, GA, Richmond County, GA, Schley County, GA, Stewart County, GA, Sumter County, GA, Taliaferro County, GA, Taylor County, GA, Terrell County, GA, Twiggs County, GA, Upson County, GA, Warren County, GA, Washington County, GA, Webster County, GA, Wilkes County, GA, Wilkinson County, GA, Abbeville County, SC, Aiken County, SC, Chester County, SC, Edgefield County, SC, Fairfield County, SC, Greenwood County, SC, Lancaster County, SC, Laurens County, SC, Lexington County, SC, McCormick County, SC, Newberry County, SC, Richland County, SC, Saluda County, SC, Union County, SC, York County, SC
The radar
The Robins AFB radar (KJGX), 45 km from the middle of the area, began a volume at 07:34 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 00:00Z, 7.5 hours before the alert went out and 130 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
- 41 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 1003 m above ground
- 0-6 km bulk shear
- 89 kt
- 0-1 km storm-relative helicity
- 406 m²/s²
- 0-3 km storm-relative helicity
- 492 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 6, 8:02 PM EST | Mesoscale Discussion | SPC | Banks, Barrow, Clarke, Clayton, Coweta, DeKalb and 22 more | 118 min |
| Jan 6, 10:04 PM EST | Mesoscale Discussion | SPC | Baker, Calhoun, Chattahoochee, Clay, Early, Lee and 10 more | 116 min |
| Jan 6, 11:51 PM EST | Tornado Watch | SPC | Baker, Baldwin, Bibb, Bleckley, Calhoun, Chattahoochee and 41 more | 6 hr |
| Jan 7, 4:29 AM EST | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Ben Hill, Berrien, Brantley and 42 more | 91 min |
Nearby
Mesoscale Discussions in Georgia, 2009Mesoscale Discussions in South Carolina, 2009Every mesoscale discussion in 2009
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.