Alert archive / Georgia / Severe Thunderstorm Watches in 2008
Severe Thunderstorm Watch 74
The Storm Prediction Center issued this severe thunderstorm watch at Feb 22, 2008, 11:26 AM CST for 12 counties in Florida; 36 counties in Georgia. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 22, 2008, 11:26 AM CST (17:26 UTC)
- Expired
- Feb 22, 2008, 5:13 PM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 48 counties
Bay County, FL, Calhoun County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Wakulla County, FL, Washington 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, Bryan County, GA, Chatham County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Dougherty County, GA, Echols County, GA, Glynn County, GA, Grady County, GA, Irwin County, GA, Jeff Davis 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, Turner County, GA, Ware County, GA, Wayne County, GA, Worth County, GA
The radar
The Tallahassee radar (KTLH), 72 km from the middle of the area, began a volume at 17:27 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 22, 11:28 AM CST | Severe Thunderstorm Warning | TAE | Jackson, Washington | 47 min |
| Feb 22, 11:29 AM CST | Severe Thunderstorm Warning | TAE | Baker, Dougherty, Mitchell | 31 min |
| Feb 22, 11:38 AM CST | Severe Thunderstorm Warning | TAE | Baker, Decatur, Miller, Mitchell, Seminole | 52 min |
| Feb 22, 12:26 PM CST | Severe Thunderstorm Warning | TAE | Colquitt, Cook, Mitchell, Tift, Worth | 49 min |
| Feb 22, 12:55 PM CST | Severe Thunderstorm Warning | JAX | Atkinson, Coffee, Jeff Davis | 50 min |
| Feb 22, 2:44 PM CST | Severe Thunderstorm Warning | JAX | Brantley, Ware, Wayne | 28 min |
| Feb 22, 2:57 PM CST | Severe Thunderstorm Warning | JAX | Brantley, Camden, Glynn | 48 min |
| Feb 22, 3:00 PM CST | Severe Thunderstorm Warning | CHS | McIntosh | 45 min |
| Feb 22, 4:01 PM CST | Severe Thunderstorm Warning | TAE | Bay, Walton, Washington | 44 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 5.4 hours before the alert went out and 71 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
- 699 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 458 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 186 m²/s²
- 0-3 km storm-relative helicity
- 237 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 22, 11:02 AM CST | Mesoscale Discussion | SPC | Baker, Calhoun, Columbia, Gadsden, Gulf, Hamilton and 9 more | 58 min |
| Feb 22, 2:02 PM CST | Mesoscale Discussion | SPC | Bay, Calhoun, Gadsden, Gulf, Jackson, Jefferson and 5 more | 58 min |
Nearby
Severe Thunderstorm Watches in Georgia, 2008Severe Thunderstorm Watches in Florida, 2008Every severe thunderstorm watch 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.