Alert archive / Tennessee / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 197, NWS Nashville, TN
NWS Nashville, TN issued this severe thunderstorm warning at May 20, 2025, 6:58 PM CDT for 6 counties in Tennessee. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 20, 2025, 6:58 PM CDT (23:58 UTC)
- Expired
- May 20, 2025, 7:45 PM CDT
- In force
- 47 min
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties DeKalb County, TN, Jackson County, TN, Putnam County, TN, Smith County, TN, White County, TN, Wilson County, TN
The radar
The Nashville radar (KOHX), 71 km from the middle of the area, began a volume at 00:02 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 20, 2:36 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 12.0 hours before the alert went out and 73 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
- 1162 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 904 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 114 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 3.9
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Nashville, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at May 20, 6:20 PM CDT, 38 minutes earlier. Its key messages:
- Updated at 620 PM CDT Tue May 20 2025
- There is an enhanced risk (level 3 out of 5) for severe storms today. All modes of severe weather are possible, including damaging winds, hail, and tornadoes.
- Cooler temperatures move over the area Wednesday and through early next week along with some chances for showers and thunderstorms through the weekend.
Area forecast discussion, May 20, 6:20 PM CDT, 38 minutes before
Area Forecast Discussion National Weather Service Nashville TN Issued by National Weather Service Morristown TN 620 PM CDT Tue May 20 2025 ...New AVIATION... .KEY MESSAGES... Updated at 620 PM CDT Tue May 20 2025 - There is an enhanced risk (level 3 out of 5) for severe storms today. All modes of severe weather are possible, including damaging winds, hail, and tornadoes. - Cooler temperatures move over the area Wednesday and through early next week along with some chances for showers and thunderstorms through the weekend. && .SHORT TERM... (Rest of today through Wednesday) Issued at 1055 AM CDT Tue May 20 2025 Our previously forecasted morning/early afternoon showers and thunderstorms are moving through Middle TN. As expected, the environment is not quite primed enough for any widespread severe storms. At this time, biggest impacts with any of these storms look to be gusty winds and heavy downpours as the line of storms arrive. We continue to monitor the severe threat with another round of storms is forecasted to impact our area later this afternoon through the evening. The question is, how much is the atmosphere going to recover from this mornings convection before the next round. Satellite imagery shows a sharp gradient of clear skies over W TN, just behind this mornings convection. This dry slot is expected to push east ahead of our advancing mid-level trough. As it does so, surface instability should increase. Additionally, strong deep- layer shear and surface to mid-level lapse rates will increase through the late afternoon. With these factors in place, this afternoon and evening's convection will have a better potential for severe storms. Storms move out of the area by 10 pm tonight, ushering in cooler and dryer air. Wednesday looks reasonably dry with highs in the upper 70s. Late Wednesday night, a shortwave lifts to the NE and brings increasing showers and thunderstorm chances across the SW. Not seeing any severe storm concerns with these at this time. && .LONG TERM... (Wednesday Night through next Tuesday) Issued at 1055 AM CDT Tue May 20 2025 Thursday and Friday remain mostly dry as a ridge builds to the SW. Cooler temperatures also stick around with highs in the 70s. Middle TN will remain on the backside of the ridge by the weekend with a short wave rolling over the ridge Sunday. This will introduce better rain chances back into the forecast, sticking around through early next week. && .AVIATION... (00Z TAFS) Issued at 620 PM CDT Tue May 20 2025 A line of TSRA is currently moving west to east across the area this evening. This will cause issues with ceilings and vsbys in the initial TAF period. Once this clears (before 06z), ceilings should lift and stay in VFR conditions for the remainder of the TAF period. && .PRELIMINARY POINT TEMPS/POPS... Nashville 64 81 60 77 / 60 0 20 20 Clarksville 60 78 58 74 / 40 0 10 10 Crossville 61 73 54 70 / 80 10 20 30 Columbia 61 80 59 77 / 50 0 50 20 Cookeville 62 75 56 71 / 80 0 20 30 Jamestown 60 74 53 70 / 90 0 20 40 Lawrenceburg 61 79 58 77 / 60 0 40 20 Murfreesboro 63 80 58 77 / 70 0 30 20 Waverly 57 78 57 74 / 40 0 30 10 && .OHX WATCHES/WARNINGS/ADVISORIES... None. && SHORT TERM...Cravens LONG TERM....Cravens AVIATION.....Holley
In the hours before
Local storm report, May 20, 6:30 PM CDT, 28 minutes before
Preliminary Local Storm Report
National Weather Service Nashville TN
630 PM CDT Tue May 20 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0620 PM Flash Flood 1 WSW Franklin 35.92N 86.87W
05/20/2025 Williamson TN Emergency Mngr
Several roads reported closed across
Williamson County due to heavy rain.
&&Local storm report, May 20, 6:40 PM CDT, 18 minutes before
Preliminary Local Storm Report
National Weather Service Nashville TN
640 PM CDT Tue May 20 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0620 PM Flash Flood 2 NNE Berry Hill 36.15N 86.75W
05/20/2025 Davidson TN Public
Flooding reported in the Nashville metro
area from heavy rain.
&&Local storm report, May 20, 6:46 PM CDT, 12 minutes before
Preliminary Local Storm Report
National Weather Service Nashville TN
646 PM CDT Tue May 20 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0644 PM Flash Flood 6 ESE Franklin 35.88N 86.75W
05/20/2025 Williamson TN Public
Flooding reported on Trinity Road at Highway
96.
&&Local storm report, May 20, 6:48 PM CDT, 10 minutes before
Preliminary Local Storm Report
National Weather Service Nashville TN
648 PM CDT Tue May 20 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0644 PM Flash Flood 5 NW College Grove 35.85N 86.73W
05/20/2025 Williamson TN Public
Flooding reported on Lampkin Bridge Road.
&&Local storm report, May 20, 6:49 PM CDT, 9 minutes before
Preliminary Local Storm Report
National Weather Service Nashville TN
649 PM CDT Tue May 20 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0643 PM Flash Flood 5 WSW Franklin 35.89N 86.93W
05/20/2025 Williamson TN Public
Flooding reported on Southhall Road in
Franklin.
&&Local storm report, May 20, 6:55 PM CDT, 3 minutes before
Preliminary Local Storm Report
National Weather Service Nashville TN
655 PM CDT Tue May 20 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0545 PM Tstm Wnd Dmg 7 WSW Bon Aqua 35.91N 87.45W
05/20/2025 Hickman TN Public
Tree down on home on Keys Branch Road near
Bon Aqua.
&&The office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 9:39 AM CDT | Severe Thunderstorm Warning | OHX | Hickman, Perry | 36 min |
| May 20, 10:02 AM CDT | Severe Thunderstorm Warning | OHX | Wayne | 43 min |
| May 20, 10:20 AM CDT | Special Weather Statement | OHX | Williamson | 40 min |
| May 20, 10:41 AM CDT | Special Weather Statement | OHX | Lewis | 49 min |
| May 20, 12:40 PM CDT | Tornado Warning | OHX | Lawrence, Wayne | 50 min |
| May 20, 1:26 PM CDT | Special Weather Statement | OHX | Giles | 34 min |
| May 20, 1:59 PM CDT | Special Weather Statement | OHX | Giles | 31 min |
| May 20, 2:14 PM CDT | Tornado Warning | OHX | Giles | 15 min |
| May 20, 2:56 PM CDT | Severe Thunderstorm Warning | OHX | Dickson, Hickman, Humphreys, Perry | 64 min |
| May 20, 3:02 PM CDT | Tornado Warning | OHX | Hickman, Lewis, Maury | 28 min |
| May 20, 3:39 PM CDT | Tornado Warning | OHX | Hickman | 36 min |
| May 20, 3:56 PM CDT | Severe Thunderstorm Warning | OHX | Davidson, Dickson, Hickman, Maury, Williamson | 64 min |
| May 20, 3:58 PM CDT | Severe Thunderstorm Warning | OHX | Coffee, Grundy | 62 min |
| May 20, 4:23 PM CDT | Severe Thunderstorm Warning | OHX | Houston, Montgomery, Stewart | 67 min |
| May 20, 4:27 PM CDT | Tornado Warning | OHX | Lawrence, Lewis, Maury | 33 min |
| May 20, 4:32 PM CDT | Tornado Warning | OHX | Stewart | 28 min |
| May 20, 4:40 PM CDT | Severe Thunderstorm Warning | OHX | Dickson, Houston, Humphreys | 54 min |
| May 20, 4:49 PM CDT | Severe Thunderstorm Warning | OHX | Cannon, Davidson, Rutherford, Williamson, Wilson | 56 min |
| May 20, 4:55 PM CDT | Tornado Warning | OHX | Marshall, Maury, Williamson | 35 min |
| May 20, 5:11 PM CDT | Tornado Warning | OHX | Montgomery, Robertson | 21 min |
| May 20, 5:21 PM CDT | Severe Thunderstorm Warning | OHX | Cheatham, Dickson, Hickman, Houston, Humphreys, Montgomery and 2 more | 54 min |
| May 20, 5:23 PM CDT | Tornado Warning | OHX | Bedford, Marshall, Rutherford | 37 min |
| May 20, 5:26 PM CDT | Tornado Warning | OHX | Montgomery, Robertson | 34 min |
| May 20, 5:27 PM CDT | Areal Flood Advisory | OHX | Davidson, Maury, Rutherford, Williamson | 4 hr |
| May 20, 5:30 PM CDT | Severe Thunderstorm Warning | OHX | Cheatham, Davidson, Dickson, Montgomery, Robertson, Sumner | 64 min |
| May 20, 5:39 PM CDT | Severe Thunderstorm Warning | OHX | Cannon, DeKalb, Rutherford, Wilson | 66 min |
| May 20, 5:48 PM CDT | Tornado Warning | OHX | Bedford, Cannon, Coffee, Grundy, Warren | 42 min |
| May 20, 5:55 PM CDT | Tornado Warning | OHX | Cannon, Coffee, Rutherford | 35 min |
| May 20, 6:06 PM CDT | Severe Thunderstorm Warning | OHX | Cheatham, Davidson, Hickman, Maury, Rutherford, Sumner and 3 more | 54 min |
| May 20, 6:23 PM CDT | Flash Flood Warning | OHX | Cheatham, Davidson, Maury, Rutherford, Williamson, Wilson | 3 hr |
| May 20, 6:24 PM CDT | Tornado Warning | OHX | Bedford, Cannon, Coffee, Rutherford | 51 min |
| May 20, 6:26 PM CDT | Flash Flood Warning | OHX | Cheatham, Davidson, Dickson, Robertson, Sumner, Trousdale and 1 more | 3 hr |
| May 20, 6:27 PM CDT | Tornado Warning | OHX | Van Buren, Warren | 33 min |
| May 20, 6:30 PM CDT | Severe Thunderstorm Warning | OHX | Clay, Macon, Sumner, Trousdale | 25 min |
| May 20, 6:54 PM CDT | Tornado Warning | OHX | Cumberland, Van Buren, White | 66 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 2025Every severe thunderstorm warning in 2025
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.