Alert archive / Alabama / Tornado Watches in 2023
Tornado Watch 337
The Storm Prediction Center issued this tornado watch at Jun 18, 2023, 9:29 PM CDT for 22 counties in Alabama; Wayne County, Mississippi; Lawrence County, Wayne County, Tennessee. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 18, 2023, 9:29 PM CDT (02:29 UTC)
- Expired
- Jun 19, 2023, 1:15 AM CDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 25 counties
Bibb County, AL, Choctaw County, AL, Clarke County, AL, Colbert County, AL, Dallas County, AL, Fayette County, AL, Franklin County, AL, Greene County, AL, Hale County, AL, Lamar County, AL, Lauderdale County, AL, Lawrence County, AL, Marengo County, AL, Marion County, AL, Perry County, AL, Pickens County, AL, Sumter County, AL, Tuscaloosa County, AL, Walker County, AL, Washington County, AL, Wilcox County, AL, Winston County, AL, Wayne County, MS, Lawrence County, TN, Wayne County, TN
The radar
The Columbus AFB radar (KGWX), 49 km from the middle of the area, began a volume at 02:31 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
- 40%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
1 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 9:52 PM CDT | Severe Thunderstorm Warning | BMX | Fayette, Tuscaloosa | 33 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
Birmingham, AL (KBMX), launched 00:00Z, 2.5 hours before the alert went out and 117 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
- 56 J/kg
- Mixed-layer CIN
- -282 J/kg
- Mixed-layer LCL
- 1478 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 125 m²/s²
- 0-3 km storm-relative helicity
- 194 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 8:43 PM CDT | Mesoscale Discussion | SPC | Bibb, Choctaw, Clarke, Colbert, Cullman, Dallas and 21 more | 2 hr |
| Jun 18, 10:48 PM CDT | Mesoscale Discussion | SPC | Choctaw, Clarke, Greene, Hale, Marengo, Perry and 3 more | 117 min |
| Jun 19, 12:57 AM CDT | Tornado Watch | SPC | Bibb, Choctaw, Clarke, Dallas, Fayette, Greene and 12 more | 7 hr |
| Jun 19, 3:08 AM CDT | Mesoscale Discussion | SPC | Choctaw, Clarke, Marengo, Monroe, Washington, Wilcox | 2 hr |
| Jun 19, 1:35 PM CDT | Mesoscale Discussion | SPC | Butler, Choctaw, Clarke, Conecuh, Dallas, Lowndes and 5 more | 115 min |
| Jun 18, 8:36 PM CDT | Mesoscale Discussion | SPC | Attala, Calhoun, Chickasaw, Choctaw, Clay, Jasper and 12 more | 84 min |
| Jun 19, 7:05 AM CDT | Mesoscale Discussion | SPC | Forrest, George, Greene, Jones, Perry, Stone | 115 min |
| Jun 19, 5:03 PM CDT | Mesoscale Discussion | SPC | Hancock | 117 min |
Nearby
Tornado Watches in Alabama, 2023Tornado Watches in Tennessee, 2023Tornado Watches in Mississippi, 2023Every tornado watch in 2023
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.