Alert archive / Alabama / Mesoscale Discussions in 2019
Mesoscale Discussion 128
The Storm Prediction Center issued this mesoscale discussion at Feb 23, 2019, 5:01 PM CST for 16 counties in Alabama; Kemper County, Lowndes County, Noxubee County, Mississippi; 4 counties in Tennessee. It was in force for 119 min.
The area
The outline as issued.
The facts
- Issued
- Feb 23, 2019, 5:01 PM CST (23:01 UTC)
- Expired
- Feb 23, 2019, 7:00 PM CST
- In force
- 119 min
- Issued by
- the Storm Prediction Center
All 23 counties
Colbert County, AL, Fayette County, AL, Franklin County, AL, Greene County, AL, Hale County, AL, Lamar County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Marion County, AL, Morgan County, AL, Pickens County, AL, Sumter County, AL, Tuscaloosa County, AL, Walker County, AL, Winston County, AL, Kemper County, MS, Lowndes County, MS, Noxubee County, MS, Giles County, TN, Lawrence County, TN, Lewis County, TN, Wayne County, TN
The radar
The Columbus AFB radar (KGWX), 47 km from the middle of the area, began a volume at 23:02 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.
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 11.0 hours before the alert went out and 131 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
- 90 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 498 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 332 m²/s²
- 0-3 km storm-relative helicity
- 427 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 23, 1:58 PM CST | Mesoscale Discussion | SPC | Fayette, Greene, Hale, Sumter, Tuscaloosa, Walker and 1 more | 62 min |
| Feb 23, 3:01 PM CST | Tornado Watch | SPC | Bibb, Blount, Chilton, Colbert, Cullman, Etowah and 21 more | 6 hr |
| Feb 23, 10:52 AM CST | Mesoscale Discussion | SPC | Adams, Attala, Bolivar, Carroll, Choctaw, Claiborne and 24 more | 113 min |
| Feb 23, 12:26 PM CST | Tornado Watch | SPC | Adams, Alcorn, Attala, Benton, Bolivar, Calhoun and 52 more | 8 hr |
| Feb 23, 2:35 PM CST | Mesoscale Discussion | SPC | Attala, Choctaw, Clay, Holmes, Leake, Madison and 5 more | 55 min |
Nearby
Mesoscale Discussions in Alabama, 2019Mesoscale Discussions in Tennessee, 2019Mesoscale Discussions in Mississippi, 2019Every mesoscale discussion 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.