Alert archive / Georgia / Mesoscale Discussions in 2017
Mesoscale Discussion 14
The Storm Prediction Center issued this mesoscale discussion at Jan 2, 2017, 8:15 PM CST for Henry County, Houston County, Alabama; 8 counties in Florida; 17 counties in Georgia. It was in force for 60 min.
The area
The outline as issued.
The facts
- Issued
- Jan 2, 2017, 8:15 PM CST (02:15 UTC)
- Expired
- Jan 2, 2017, 9:15 PM CST
- In force
- 60 min
- Issued by
- the Storm Prediction Center
All 27 counties
Henry County, AL, Houston County, AL, Calhoun County, FL, Gadsden County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Wakulla County, FL, Washington County, FL, Baker County, GA, Brooks County, GA, Calhoun County, GA, Clay County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Miller County, GA, Mitchell County, GA, Randolph County, GA, Seminole County, GA, Terrell County, GA, Thomas County, GA, Worth County, GA
The radar
The Tallahassee radar (KTLH), 77 km from the middle of the area, began a volume at 02:18 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
Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 2.3 hours before the alert went out and 78 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
- 202 J/kg
- Mixed-layer CIN
- -97 J/kg
- Mixed-layer LCL
- 638 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 138 m²/s²
- 0-3 km storm-relative helicity
- 182 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.4
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 |
|---|---|---|---|---|
| Jan 2, 9:27 PM CST | Tornado Watch | SPC | Hamilton, Jefferson, Madison | 3 hr |
| Jan 2, 11:10 PM CST | Mesoscale Discussion | SPC | Baker, Hamilton, Jefferson, Liberty, Madison, Nassau and 1 more | 2 hr |
| Jan 3, 11:12 AM CST | Mesoscale Discussion | SPC | Baker, Bradford, Clay, Columbia, Duval, Nassau and 2 more | 2 hr |
Nearby
Mesoscale Discussions in Georgia, 2017Mesoscale Discussions in Florida, 2017Mesoscale Discussions in Alabama, 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.