Alert archive / Alabama / Tornado Watches in 2019
Tornado Watch 702
The Storm Prediction Center issued this tornado watch at Dec 16, 2019, 3:47 PM CST for 33 counties in Alabama; Greene County, Perry County, Wayne County, Mississippi; 6 counties in Tennessee. It was in force for 10 hr.
The area
The outline as issued.
The facts
- Issued
- Dec 16, 2019, 3:47 PM CST (21:47 UTC)
- Expired
- Dec 17, 2019, 2:00 AM CST
- In force
- 10 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 42 counties
Bibb County, AL, Blount County, AL, Chilton County, AL, Choctaw County, AL, Clarke County, AL, Colbert County, AL, Cullman County, AL, DeKalb County, AL, Etowah County, AL, Fayette County, AL, Franklin County, AL, Greene County, AL, Hale County, AL, Jackson County, AL, Jefferson County, AL, Lamar County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Marengo County, AL, Marion County, AL, Marshall County, AL, Morgan County, AL, Perry County, AL, Pickens County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Tuscaloosa County, AL, Walker County, AL, Washington County, AL, Winston County, AL, Greene County, MS, Perry County, MS, Wayne County, MS, Franklin County, TN, Giles County, TN, Lawrence County, TN, Lincoln County, TN, Moore County, TN, Wayne County, TN
The radar
The Columbus AFB radar (KGWX), 117 km from the middle of the area, began a volume at 21:49 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
- 50%
- 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
- 60%
Warnings issued inside it
29 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 16, 3:59 PM CST | Severe Thunderstorm Warning | HUN | Colbert, Franklin, Lauderdale | 61 min |
| Dec 16, 4:25 PM CST | Severe Thunderstorm Warning | OHX | Lawrence, Lewis, Perry, Wayne | 35 min |
| Dec 16, 4:26 PM CST | Tornado Warning | HUN | Colbert, Franklin, Lauderdale | 49 min |
| Dec 16, 4:32 PM CST | Tornado Warning | HUN | Colbert, Lauderdale | 43 min |
| Dec 16, 4:34 PM CST | Severe Thunderstorm Warning | OHX | Lawrence, Wayne | 41 min |
| Dec 16, 4:52 PM CST | Severe Thunderstorm Warning | HUN | Colbert, Franklin, Lauderdale, Lawrence, Limestone | 53 min |
| Dec 16, 4:56 PM CST | Tornado Warning | HUN | Colbert, Lauderdale, Lawrence, Limestone, Morgan | 49 min |
| Dec 16, 5:13 PM CST | Severe Thunderstorm Warning | HUN | Limestone, Madison, Morgan | 62 min |
| Dec 16, 5:15 PM CST | Severe Thunderstorm Warning | OHX | Giles, Lawrence, Marshall, Maury | 45 min |
| Dec 16, 5:39 PM CST | Tornado Warning | HUN | Limestone, Madison | 51 min |
| Dec 16, 5:49 PM CST | Tornado Warning | HUN | Lincoln | 26 min |
| Dec 16, 6:03 PM CST | Severe Thunderstorm Warning | HUN | Jackson, Madison | 57 min |
| Dec 16, 6:14 PM CST | Tornado Warning | HUN | Jackson, Madison | 31 min |
| Dec 16, 6:14 PM CST | Tornado Warning | HUN | Franklin, Lincoln, Moore | 31 min |
| Dec 16, 6:27 PM CST | Tornado Warning | HUN | Jackson | 33 min |
| Dec 16, 6:39 PM CST | Severe Thunderstorm Warning | HUN | Jackson | 39 min |
| Dec 16, 6:44 PM CST | Tornado Warning | MOB | Choctaw | 61 min |
| Dec 16, 6:46 PM CST | Tornado Warning | HUN | Franklin | 17 min |
| Dec 16, 7:27 PM CST | Severe Thunderstorm Warning | MOB | Choctaw | 35 min |
| Dec 16, 7:34 PM CST | Tornado Warning | BMX | Marengo, Sumter | 56 min |
| Dec 16, 7:40 PM CST | Tornado Warning | MOB | Choctaw | 14 min |
| Dec 16, 8:09 PM CST | Tornado Warning | BMX | Greene, Hale | 66 min |
| Dec 16, 8:15 PM CST | Severe Thunderstorm Warning | MOB | Choctaw | 45 min |
| Dec 16, 8:56 PM CST | Severe Thunderstorm Warning | MOB | Choctaw | 49 min |
| Dec 16, 9:02 PM CST | Tornado Warning | BMX | Bibb, Hale, Perry | 58 min |
| Dec 16, 9:23 PM CST | Severe Thunderstorm Warning | BMX | Perry | 38 min |
| Dec 16, 9:34 PM CST | Severe Thunderstorm Warning | HUN | DeKalb | 13 min |
| Dec 16, 9:38 PM CST | Severe Thunderstorm Warning | BMX | Autauga, Bibb, Chilton, Dallas | 67 min |
| Dec 16, 9:59 PM CST | Tornado Warning | BMX | Bibb, Chilton, Shelby | 31 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
Jackson, MS (KJAN), launched 12:00Z, 9.8 hours before the alert went out and 203 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
- 268 J/kg
- Mixed-layer CIN
- -205 J/kg
- Mixed-layer LCL
- 760 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 220 m²/s²
- 0-3 km storm-relative helicity
- 246 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 16, 3:10 PM CST | Mesoscale Discussion | SPC | Colbert, Fayette, Franklin, Greene, Jefferson, Lamar and 8 more | 65 min |
| Dec 16, 4:45 PM CST | Mesoscale Discussion | SPC | Colbert, Fayette, Franklin, Lamar, Lauderdale, Lawrence and 5 more | 60 min |
| Dec 16, 9:43 AM CST | Mesoscale Discussion | SPC | Adams, Claiborne, Copiah, Franklin, Hinds, Humphreys and 9 more | 3 hr |
| Dec 16, 10:02 AM CST | Mesoscale Discussion | SPC | Coahoma, DeSoto, Quitman, Tate, Tunica | 118 min |
| Dec 16, 10:40 AM CST | Tornado Watch | SPC | Adams, Amite, Attala, Bolivar, Carroll, Claiborne and 23 more | 9 hr |
| Dec 16, 1:16 PM CST | Mesoscale Discussion | SPC | Adams, Amite, Claiborne, Copiah, Franklin, Jefferson and 2 more | 89 min |
| Dec 16, 1:52 PM CST | Mesoscale Discussion | SPC | Alcorn, Attala, Benton, Calhoun, Carroll, Chickasaw and 22 more | 83 min |
| Dec 16, 2:22 PM CST | Tornado Watch | SPC | Alcorn, Calhoun, Chickasaw, Choctaw, Clarke, Clay and 30 more | 8 hr |
| Dec 16, 3:08 PM CST | Mesoscale Discussion | SPC | Amite, Copiah, Franklin, Jefferson Davis, Lawrence, Lincoln and 3 more | 67 min |
| Dec 16, 4:32 PM CST | Mesoscale Discussion | SPC | Covington, Jasper, Jefferson Davis, Jones, Lawrence, Marion and 1 more | 88 min |
Nearby
Tornado Watches in Alabama, 2019Tornado Watches in Tennessee, 2019Tornado Watches in Mississippi, 2019Every tornado watch in 2019
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.