Alert archive / Georgia / Mesoscale Discussions in 2023
Mesoscale Discussion 1018
The Storm Prediction Center issued this mesoscale discussion at Jun 13, 2023, 2:42 PM CDT for 8 counties in Alabama; 12 counties in Florida; 42 counties in Georgia. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 13, 2023, 2:42 PM CDT (19:42 UTC)
- Expired
- Jun 13, 2023, 4:45 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Concerning
- Severe thunderstorm watch 281
All 62 counties
Coffee County, AL, Conecuh County, AL, Covington County, AL, Dale County, AL, Escambia County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Baker County, FL, Columbia County, FL, Duval County, FL, Gadsden County, FL, Hamilton County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Madison County, FL, Nassau County, FL, Suwannee County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Brantley County, GA, Brooks County, GA, Calhoun County, GA, Camden County, GA, Charlton County, GA, Clay County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Echols County, GA, Glynn County, GA, Grady County, GA, Irwin County, GA, Jeff Davis County, GA, Lanier County, GA, Lee County, GA, Liberty County, GA, Long County, GA, Lowndes County, GA, McIntosh County, GA, Miller County, GA, Mitchell County, GA, Pierce County, GA, Randolph County, GA, Seminole County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Ware County, GA, Wayne County, GA, Worth County, GA
The radar
The Ft Rucker radar (KEOX), 80 km from the middle of the area, began a volume at 19:43 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, 7.7 hours before the alert went out and 87 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
- 950 J/kg
- Mixed-layer CIN
- -142 J/kg
- Mixed-layer LCL
- 874 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 124 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
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 |
|---|---|---|---|---|
| Jun 13, 11:01 AM CDT | Mesoscale Discussion | SPC | Autauga, Barbour, Bullock, Butler, Choctaw, Clarke and 22 more | 2 hr |
| Jun 13, 12:30 PM CDT | Severe Thunderstorm Watch | SPC | Baldwin, Barbour, Butler, Choctaw, Clarke, Coffee and 13 more | 7 hr |
| Jun 13, 3:03 PM CDT | Severe Thunderstorm Watch | SPC | Baker, Columbia, Duval, Hamilton, Nassau, Suwannee | 5 hr |
| Jun 13, 5:12 PM CDT | Mesoscale Discussion | SPC | Baker, Bradford, Clay, Columbia, Duval, Gilchrist and 7 more | 93 min |
| Jun 13, 5:26 PM CDT | Mesoscale Discussion | SPC | Bay, Calhoun, Holmes, Jackson, Liberty, Okaloosa and 2 more | 64 min |
Nearby
Mesoscale Discussions in Georgia, 2023Mesoscale Discussions in Florida, 2023Mesoscale Discussions in Alabama, 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.