Alert archive / Georgia / Tornado Watches in 2022
Tornado Watch 590
The Storm Prediction Center issued this tornado watch at Dec 15, 2022, 1:02 AM CST for 15 counties in Florida; 36 counties in Georgia. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Dec 15, 2022, 1:02 AM CST (07:02 UTC)
- Expired
- Dec 15, 2022, 8:00 AM CST
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 51 counties
Bay County, FL, Calhoun County, FL, Dixie County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Taylor County, FL, Wakulla County, FL, Washington County, FL, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Brooks County, GA, Calhoun County, GA, Clay County, GA, Colquitt County, GA, Cook County, GA, Crisp County, GA, Decatur County, GA, Dodge County, GA, Dooly County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Irwin County, GA, Lanier County, GA, Lee County, GA, Lowndes County, GA, Miller County, GA, Mitchell County, GA, Pulaski County, GA, Quitman County, GA, Randolph County, GA, Schley County, GA, Seminole County, GA, Stewart County, GA, Sumter County, GA, Telfair County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Webster County, GA, Wilcox County, GA, Worth County, GA
The radar
The Tallahassee radar (KTLH), 29 km from the middle of the area, began a volume at 07:06 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
- 40%
- One or more EF2 to EF5 tornadoes
- 30%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 10%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 40%
Warnings issued inside it
2 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 15, 1:24 AM CST | Severe Thunderstorm Warning | TAE | Bay, Calhoun, Gulf, Jackson, Liberty, Washington | 96 min |
| Dec 15, 4:27 AM CST | Tornado Warning | TAE | Colquitt, Worth | 13 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 00:00Z, 7.0 hours before the alert went out and 30 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
- 172 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 513 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 222 m²/s²
- 0-3 km storm-relative helicity
- 274 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.4
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 14, 7:03 PM CST | Mesoscale Discussion | SPC | Bay, Calhoun, Escambia, Franklin, Gadsden, Gulf and 9 more | 117 min |
| Dec 14, 11:28 PM CST | Mesoscale Discussion | SPC | Bay, Calhoun, Gadsden, Gulf, Holmes, Jackson and 5 more | 2 hr |
| Dec 15, 3:46 AM CST | Mesoscale Discussion | SPC | Alachua, Citrus, Columbia, Dixie, Franklin, Gilchrist and 11 more | 89 min |
| Dec 15, 7:01 AM CST | Tornado Watch | SPC | Brevard, Charlotte, Citrus, DeSoto, Flagler, Hardee and 17 more | 8 hr |
| Dec 15, 9:15 AM CST | Mesoscale Discussion | SPC | Citrus, Hernando, Hillsborough, Levy, Manatee, Pasco and 2 more | 90 min |
| Dec 15, 12:12 PM CST | Mesoscale Discussion | SPC | Brevard, Hardee, Hillsborough, Manatee, Orange, Osceola and 3 more | 93 min |
| Dec 15, 2:42 PM CST | Mesoscale Discussion | SPC | Charlotte, DeSoto, Glades, Highlands, Indian River, Lee and 2 more | 93 min |
Nearby
Tornado Watches in Georgia, 2022Tornado Watches in Florida, 2022Every tornado watch in 2022
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.