Alert archive / Georgia / Tornado Watches in 2020
Tornado Watch 16
The Storm Prediction Center issued this tornado watch at Jan 11, 2020, 2:44 PM CST for 5 counties in Alabama; 10 counties in Florida; 15 counties in Georgia. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 11, 2020, 2:44 PM CST (20:44 UTC)
- Expired
- Jan 11, 2020, 8:00 PM CST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 0.5 in
- Strongest gust expected
- 60 kt
All 30 counties
Coffee County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Bay County, FL, Calhoun County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Liberty County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Calhoun County, GA, Clay County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Lee County, GA, Miller County, GA, Mitchell County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Terrell County, GA, Worth County, GA
The radar
The Ft Rucker radar (KEOX), 63 km from the middle of the area, began a volume at 20:44 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
- 20%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 5%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
12 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 11, 2:49 PM CST | Severe Thunderstorm Warning | TAE | Coffee, Dale, Geneva | 86 min |
| Jan 11, 3:12 PM CST | Severe Thunderstorm Warning | TAE | Walton | 63 min |
| Jan 11, 4:00 PM CST | Severe Thunderstorm Warning | TAE | Holmes, Walton | 60 min |
| Jan 11, 4:04 PM CST | Severe Thunderstorm Warning | TAE | Coffee, Dale, Geneva, Henry, Houston | 71 min |
| Jan 11, 4:38 PM CST | Severe Thunderstorm Warning | TAE | Henry | 79 min |
| Jan 11, 4:38 PM CST | Severe Thunderstorm Warning | TAE | Bay, Holmes, Jackson, Walton, Washington | 67 min |
| Jan 11, 4:45 PM CST | Severe Thunderstorm Warning | TAE | Geneva, Houston | 73 min |
| Jan 11, 5:34 PM CST | Severe Thunderstorm Warning | TAE | Lee, Randolph, Terrell | 86 min |
| Jan 11, 5:38 PM CST | Severe Thunderstorm Warning | TAE | Jackson, Washington | 67 min |
| Jan 11, 5:46 PM CST | Severe Thunderstorm Warning | TAE | Baker, Calhoun, Clay, Dougherty, Early, Miller and 1 more | 74 min |
| Jan 11, 6:33 PM CST | Severe Thunderstorm Warning | TAE | Lee, Worth | 57 min |
| Jan 11, 6:43 PM CST | Severe Thunderstorm Warning | TAE | Jackson | 47 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, 8.7 hours before the alert went out and 103 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
- 44 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 763 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 224 m²/s²
- 0-3 km storm-relative helicity
- 316 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
441 WWUS20 KWNS 112042 SEL6 SPC WW 112042 ALZ000-FLZ000-GAZ000-CWZ000-120200- URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 16 NWS Storm Prediction Center Norman OK 345 PM EST Sat Jan 11 2020 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Southeast Alabama Florida Panhandle Southwest Georgia Coastal Waters * Effective this Saturday afternoon and evening from 345 PM until 900 PM EST. * Primary threats include... A couple tornadoes possible Scattered damaging wind gusts to 70 mph likely SUMMARY...A line of thunderstorms over southern Alabama will continue to track eastward this afternoon and evening across the watch area. Locally gusty/damaging wind gusts are possible with these storms, along with a risk of isolated tornadoes. The tornado watch area is approximately along and 55 statute miles east and west of a line from 45 miles north northeast of Dothan AL to 40 miles west southwest of Apalachicola FL. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU6). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. && OTHER WATCH INFORMATION...CONTINUE...WW 13...WW 14...WW 15... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 0.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean storm motion vector 24035. ...Hart
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 11, 6:12 AM CST | Mesoscale Discussion | SPC | Colbert, Lauderdale, Limestone, Madison | 93 min |
| Jan 11, 6:57 AM CST | Tornado Watch | SPC | Colbert, Cullman, Fayette, Franklin, Lamar, Lauderdale and 7 more | 7 hr |
| Jan 11, 7:39 AM CST | Mesoscale Discussion | SPC | Choctaw, Clarke, Greene, Hale, Marengo, Mobile and 3 more | 96 min |
| Jan 11, 7:57 AM CST | Tornado Watch | SPC | Autauga, Baldwin, Bibb, Blount, Butler, Chilton and 22 more | 9 hr |
| Jan 11, 9:28 AM CST | Mesoscale Discussion | SPC | Blount, Cullman, DeKalb, Fayette, Jackson, Lawrence and 7 more | 92 min |
| Jan 11, 9:54 AM CST | Mesoscale Discussion | SPC | Choctaw, Greene, Marengo, Pickens, Sumter, Washington | 96 min |
| Jan 11, 11:50 AM CST | Mesoscale Discussion | SPC | Bibb, Blount, Chilton, Choctaw, Clarke, Cullman and 15 more | 85 min |
| Jan 11, 12:20 PM CST | Mesoscale Discussion | SPC | Blount, Calhoun, Chambers, Cherokee, Clay, Cleburne and 9 more | 85 min |
| Jan 11, 12:42 PM CST | Tornado Watch | SPC | Barbour, Bullock, Calhoun, Chambers, Cherokee, Clay and 15 more | 7 hr |
| Jan 11, 1:15 PM CST | Mesoscale Discussion | SPC | Blount, Calhoun, Cherokee, Chilton, DeKalb, Etowah and 6 more | 90 min |
| Jan 11, 2:26 PM CST | Mesoscale Discussion | SPC | Barbour, Bullock, Butler, Coffee, Covington, Crenshaw and 10 more | 94 min |
| Jan 11, 3:16 PM CST | Mesoscale Discussion | SPC | Bullock, Chambers, Clay, Cleburne, Lee, Macon and 3 more | 89 min |
| Jan 11, 5:21 PM CST | Mesoscale Discussion | SPC | Houston | 114 min |
| Jan 11, 3:48 PM CST | Mesoscale Discussion | SPC | Banks, Elbert, Franklin, Habersham, Hart, Madison and 2 more | 117 min |
| Jan 11, 4:38 PM CST | Tornado Watch | SPC | Baldwin, Bleckley, Burke, Clarke, Columbia, Dodge and 34 more | 6 hr |
| Jan 11, 5:36 PM CST | Mesoscale Discussion | SPC | Baldwin, Banks, Barrow, Bibb, Bleckley, Butts and 63 more | 84 min |
Nearby
Tornado Watches in Georgia, 2020Tornado Watches in Florida, 2020Tornado Watches in Alabama, 2020Every tornado watch in 2020
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.