Alert archive / Tennessee / Mesoscale Discussions in 2026
Mesoscale Discussion 1749
The Storm Prediction Center issued this mesoscale discussion at Jul 26, 2026, 7:34 PM CDT for 29 counties in Tennessee. It was in force for 56 min.
The area
The outline as issued.
The facts
- Issued
- Jul 26, 2026, 7:34 PM CDT (00:34 UTC)
- Expired
- Jul 26, 2026, 8:30 PM CDT
- In force
- 56 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch possible
- Chance of a watch
- 60%
All 29 counties
Bedford County, TN, Benton County, TN, Carroll County, TN, Cheatham County, TN, Chester County, TN, Davidson County, TN, Decatur County, TN, Dickson County, TN, Gibson County, TN, Giles County, TN, Hardin County, TN, Henderson County, TN, Henry County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Lawrence County, TN, Lewis County, TN, Marshall County, TN, Maury County, TN, McNairy County, TN, Montgomery County, TN, Perry County, TN, Robertson County, TN, Rutherford County, TN, Stewart County, TN, Wayne County, TN, Weakley County, TN, Williamson County, TN
The radar
The Nashville radar (KOHX), 110 km from the middle of the area, began a volume at 00:36 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
Nashville Metro, TN (KBNA), launched 00:00Z, 0.6 hours before the alert went out and 101 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
- 2362 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 1178 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 4.7
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 |
|---|---|---|---|---|
| Jul 26, 8:10 PM CDT | Severe Thunderstorm Watch | SPC | Benton, Carroll, Cheatham, Davidson, Decatur, Dickson and 17 more | 4 hr |
| Jul 26, 8:51 PM CDT | Mesoscale Discussion | SPC | Benton, Carroll, Cheatham, Davidson, Decatur, Dickson and 17 more | 54 min |
| Jul 26, 11:06 PM CDT | Mesoscale Discussion | SPC | Chester, Decatur, Giles, Hardin, Henderson, Lawrence and 6 more | 84 min |
Nearby
Mesoscale Discussions in Tennessee, 2026Every mesoscale discussion in 2026
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.