Alert archive / Georgia / Mesoscale Discussions in 2023
Mesoscale Discussion 33
The Storm Prediction Center issued this mesoscale discussion at Jan 4, 2023, 7:07 AM CST for 15 counties in Florida; 59 counties in Georgia. It was in force for 113 min.
The area
The outline as issued.
The facts
- Issued
- Jan 4, 2023, 7:07 AM CST (13:07 UTC)
- Expired
- Jan 4, 2023, 9:00 AM CST
- In force
- 113 min
- Issued by
- the Storm Prediction Center
- Concerning
- Tornado watch 12
All 74 counties
Bay County, FL, Calhoun County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Hamilton County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Suwannee County, FL, Taylor County, FL, Wakulla County, FL, Washington County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Baker County, GA, Baldwin County, GA, Ben Hill County, GA, Berrien County, GA, Bleckley County, GA, Brooks County, GA, Bulloch County, GA, Burke County, GA, Candler County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Crisp County, GA, Decatur County, GA, Dodge County, GA, Dooly County, GA, Dougherty County, GA, Echols County, GA, Emanuel County, GA, Evans County, GA, Glascock County, GA, Grady County, GA, Hancock County, GA, Houston County, GA, Irwin County, GA, Jeff Davis County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Lanier County, GA, Laurens County, GA, Lee County, GA, Lowndes County, GA, Miller County, GA, Mitchell County, GA, Montgomery County, GA, Pierce County, GA, Pulaski County, GA, Seminole County, GA, Tattnall County, GA, Telfair County, GA, Thomas County, GA, Tift County, GA, Toombs County, GA, Treutlen County, GA, Turner County, GA, Twiggs County, GA, Ware County, GA, Warren County, GA, Washington County, GA, Wayne County, GA, Wheeler County, GA, Wilcox County, GA, Wilkinson County, GA, Worth County, GA
The radar
The Moody AFB radar (KVAX), 94 km from the middle of the area, began a volume at 13:10 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 12:00Z, 1.1 hours before the alert went out and 107 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
- 987 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 493 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 189 m²/s²
- 0-3 km storm-relative helicity
- 242 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 6.5
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 4, 2:06 AM CST | Mesoscale Discussion | SPC | Escambia, Holmes, Okaloosa, Santa Rosa, Walton, Washington | 114 min |
| Jan 4, 2:59 AM CST | Tornado Watch | SPC | Bay, Calhoun, Escambia, Gadsden, Gulf, Holmes and 6 more | 7 hr |
| Jan 4, 7:36 AM CST | Tornado Watch | SPC | Alachua, Baker, Bradford, Clay, Columbia, Duval and 15 more | 9 hr |
| Jan 4, 11:36 AM CST | Mesoscale Discussion | SPC | Baker, Columbia, Hamilton, Lafayette, Nassau, Suwannee and 2 more | 114 min |
| Jan 4, 2:26 PM CST | Mesoscale Discussion | SPC | Alachua, Bradford, Clay, Duval, Flagler, Marion and 4 more | 94 min |
Nearby
Mesoscale Discussions in Georgia, 2023Mesoscale Discussions in Florida, 2023Every mesoscale discussion in 2023
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.