Alert archive / Mississippi / Mesoscale Discussions in 2020
Mesoscale Discussion 228
The Storm Prediction Center issued this mesoscale discussion at Mar 24, 2020, 2:34 PM CDT for 6 counties in Alabama; 15 counties in Mississippi; 14 counties in Tennessee. It was in force for 116 min.
The area
The outline as issued.
The facts
- Issued
- Mar 24, 2020, 2:34 PM CDT (19:34 UTC)
- Expired
- Mar 24, 2020, 4:30 PM CDT
- In force
- 116 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 35 counties
Colbert County, AL, Franklin County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Marion County, AL, Alcorn County, MS, Benton County, MS, Calhoun County, MS, Chickasaw County, MS, Itawamba County, MS, Lafayette County, MS, Lee County, MS, Marshall County, MS, Monroe County, MS, Pontotoc County, MS, Prentiss County, MS, Tippah County, MS, Tishomingo County, MS, Union County, MS, Yalobusha County, MS, Bedford County, TN, Chester County, TN, Decatur County, TN, Giles County, TN, Hardeman County, TN, Hardin County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Marshall County, TN, Maury County, TN, McNairy County, TN, Perry County, TN, Wayne County, TN
The radar
The Columbus AFB radar (KGWX), 101 km from the middle of the area, began a volume at 19:34 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Little Rock, AR (KLZK), launched 12:00Z, 7.6 hours before the alert went out and 132 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 450 m above ground
- 0-6 km bulk shear
- 91 kt
- 0-1 km storm-relative helicity
- 499 m²/s²
- 0-3 km storm-relative helicity
- 380 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 |
|---|---|---|---|---|
| Mar 24, 3:06 PM CDT | Tornado Watch | SPC | Colbert, Cullman, DeKalb, Franklin, Jackson, Lamar and 8 more | 7 hr |
| Mar 24, 5:35 PM CDT | Mesoscale Discussion | SPC | Colbert, Lauderdale, Limestone, Madison | 85 min |
| Mar 24, 11:27 AM CDT | Mesoscale Discussion | SPC | Alcorn, DeSoto | 2 hr |
Nearby
Mesoscale Discussions in Mississippi, 2020Mesoscale Discussions in Tennessee, 2020Mesoscale Discussions in Alabama, 2020Every mesoscale discussion 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.