Alert archive / Georgia / Mesoscale Discussions in 2008
Mesoscale Discussion 963
The Storm Prediction Center issued this mesoscale discussion at May 21, 2008, 4:50 PM CDT for 6 counties in Alabama; 23 counties in Florida; 31 counties in Georgia. It was in force for 55 min.
The area
The outline as issued.
The facts
- Issued
- May 21, 2008, 4:50 PM CDT (21:50 UTC)
- Expired
- May 21, 2008, 5:45 PM CDT
- In force
- 55 min
- Issued by
- the Storm Prediction Center
All 60 counties
Coffee County, AL, Covington County, AL, Dale County, AL, Escambia County, AL, Geneva County, AL, Houston County, AL, Baker County, FL, Bay County, FL, Calhoun County, FL, Columbia County, FL, Duval County, FL, Gadsden County, FL, Hamilton County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Nassau County, FL, Okaloosa County, FL, Santa Rosa County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Baker County, GA, Berrien County, GA, Brantley County, GA, Brooks County, GA, Camden County, GA, Charlton County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Early County, GA, Echols County, GA, Glynn County, GA, Grady County, GA, Lanier County, GA, Liberty County, GA, Long County, GA, Lowndes County, GA, McIntosh County, GA, Miller County, GA, Mitchell County, GA, Pierce County, GA, Seminole County, GA, Thomas County, GA, Tift County, GA, Ware County, GA, Wayne County, GA
The radar
The Tallahassee radar (KTLH), 70 km from the middle of the area, began a volume at 21:51 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
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 9.8 hours before the alert went out and 68 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
- 1164 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 669 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 137 m²/s²
- 0-3 km storm-relative helicity
- 181 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.6
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 21, 1:04 PM CDT | Mesoscale Discussion | SPC | Baldwin, Dale, Geneva, Henry, Houston | 86 min |
| May 21, 1:26 PM CDT | Severe Thunderstorm Watch | SPC | Coffee, Covington, Dale, Geneva, Henry, Houston | 8 hr |
| May 20, 8:05 PM CDT | Mesoscale Discussion | SPC | Baldwin, Bibb, Bleckley, Burke, Crawford, Dodge and 22 more | 55 min |
| May 20, 8:42 PM CDT | Severe Thunderstorm Watch | SPC | Baldwin, Bibb, Bleckley, Bryan, Bulloch, Candler and 38 more | 4 hr |
| May 20, 11:09 PM CDT | Mesoscale Discussion | SPC | Appling, Ben Hill, Bryan, Crisp, Evans, Jeff Davis and 10 more | 66 min |
Nearby
Mesoscale Discussions in Georgia, 2008Mesoscale Discussions in Florida, 2008Mesoscale Discussions in Alabama, 2008Every mesoscale discussion in 2008
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.