Alert archive / Tennessee / Mesoscale Discussions in 2022
Mesoscale Discussion 917
The Storm Prediction Center issued this mesoscale discussion at May 25, 2022, 5:03 PM CDT for Limestone County, Madison County, Alabama; 30 counties in Tennessee. It was in force for 117 min.
The area
The outline as issued.
The facts
- Issued
- May 25, 2022, 5:03 PM CDT (22:03 UTC)
- Expired
- May 25, 2022, 7:00 PM CDT
- In force
- 117 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch unlikely
- Chance of a watch
- 5%
All 32 counties
Limestone County, AL, Madison County, AL, Bedford County, TN, Cannon County, TN, Cheatham County, TN, Coffee County, TN, Davidson County, TN, DeKalb County, TN, Dickson County, TN, Franklin County, TN, Giles County, TN, Grundy County, TN, Hickman County, TN, Jackson County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Macon County, TN, Marshall County, TN, Maury County, TN, Moore County, TN, Putnam County, TN, Robertson County, TN, Rutherford County, TN, Smith County, TN, Sumner County, TN, Trousdale County, TN, Van Buren County, TN, Warren County, TN, White County, TN, Williamson County, TN, Wilson County, TN
The radar
The Nashville radar (KOHX), 75 km from the middle of the area, began a volume at 22:05 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
Nashville Metro, TN (KBNA), launched 12:00Z, 10.1 hours before the alert went out and 61 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
- 212 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 749 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 245 m²/s²
- 0-3 km storm-relative helicity
- 259 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
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 |
|---|---|---|---|---|
| May 25, 10:51 AM CDT | Mesoscale Discussion | SPC | Barbour, Dale, Geneva, Henry, Houston | 84 min |
| May 25, 12:12 PM CDT | Mesoscale Discussion | SPC | Baldwin, Choctaw, Mobile, Washington | 93 min |
| May 25, 2:34 PM CDT | Mesoscale Discussion | SPC | Colbert, Fayette, Franklin, Lamar, Lauderdale, Marion and 3 more | 86 min |
| May 25, 5:29 PM CDT | Mesoscale Discussion | SPC | Baldwin, Butler, Choctaw, Clarke, Conecuh, Dallas and 6 more | 2 hr |
| May 25, 6:36 PM CDT | Mesoscale Discussion | SPC | Fayette, Shelby, Tipton | 54 min |
Nearby
Mesoscale Discussions in Tennessee, 2022Mesoscale Discussions in Alabama, 2022Every mesoscale discussion in 2022
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.