Alert archive / Tennessee / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 239, NWS Nashville, TN

June 27, 2025Williamson County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jun 27, 2025, 12:48 PM CDT for Williamson County, Tennessee. It was in force for 27 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: Jun 27, 2025, 12:48 PM CDT (17:48 UTC)
Expired: Jun 27, 2025, 1:15 PM CDT
In force: 27 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Williamson County, TN

The radar

The Nashville radar (KOHX), 50 km from the middle of the area, began a volume at 17:51 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, 5.8 hours before the alert went out and 38 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2306 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 841 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 21 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Jun 27, 12:45 PM CDT, 3 minutes earlier.

Area forecast discussion, Jun 27, 12:45 PM CDT, 3 minutes before

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In the hours before

Special weather statement, Jun 27, 10:43 AM CDT, 2 hours 5 minutes before

Special Weather Statement
National Weather Service Nashville TN
1043 AM CDT Fri Jun 27 2025

TNZ093-271630-
Wayne TN-
1043 AM CDT Fri Jun 27 2025

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN WAYNE COUNTY
THROUGH 1130 AM CDT...

At 1042 AM CDT, Doppler radar was tracking strong thunderstorms over
Collinwood and just southeast of Waynesboro. Movement was east at 15
mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Waynesboro and Collinwood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3508 8784 3526 8787 3539 8760 3511 8760
TIME...MOT...LOC 1542Z 263DEG 12KT 3519 8777

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

13

Special weather statement, Jun 27, 10:45 AM CDT, 2 hours 3 minutes before

Special Weather Statement
National Weather Service Nashville TN
1045 AM CDT Fri Jun 27 2025

TNZ058-060-271615-
Lewis TN-Maury TN-
1045 AM CDT Fri Jun 27 2025

...A STRONG THUNDERSTORM WILL IMPACT EAST CENTRAL LEWIS AND
SOUTHWESTERN MAURY COUNTIES THROUGH 1115 AM CDT...

At 1045 AM CDT, Doppler radar was tracking a strong thunderstorm near
Summertown, or 15 miles north of Lawrenceburg. This thunderstorm was
nearly stationary.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Mount Pleasant.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3544 8729 3545 8730 3545 8732 3546 8733
      3551 8735 3557 8719 3546 8714 3544 8727
TIME...MOT...LOC 1545Z 261DEG 4KT 3547 8727

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

13

Special weather statement, Jun 27, 11:02 AM CDT, 1 hour 46 minutes before

Special Weather Statement
National Weather Service Nashville TN
1102 AM CDT Fri Jun 27 2025

TNZ058-060-093>095-271630-
Lawrence TN-Wayne TN-Lewis TN-Maury TN-Giles TN-
1102 AM CDT Fri Jun 27 2025

...STRONG THUNDERSTORMS WILL IMPACT LEWIS...WAYNE...LAWRENCE...
SOUTHWESTERN MAURY AND GILES COUNTIES THROUGH 1130 AM CDT...

At 1100 AM CDT, Doppler radar was tracking strong thunderstorms
across Wayne, Lawrence, Lewis, Giles, and southern Maury Counties.
The strongest storms stretched from Collinwood to Pulaski. Movement
was east at only 5 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Columbia, Lawrenceburg, Pulaski, Hohenwald, Waynesboro, Mount
Pleasant, Loretto, Collinwood, and Summertown.

This includes Interstate 65 between mile markers 1 and 4.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is occurring with these storms and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3501 8793 3537 8793 3549 8773 3548 8772
      3552 8769 3559 8758 3560 8704 3499 8686
TIME...MOT...LOC 1600Z 254DEG 5KT 3522 8775 3518 8704

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

13

Special weather statement, Jun 27, 11:39 AM CDT, 1 hour 9 minutes before

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Special weather statement, Jun 27, 12:27 PM CDT, 21 minutes before

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The office that day

Everything else NWS Nashville, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 27, 10:43 AM CDT	Special Weather Statement	OHX	Wayne	47 min
Jun 27, 10:45 AM CDT	Special Weather Statement	OHX	Maury	30 min
Jun 27, 11:00 AM CDT	Areal Flood Advisory	OHX	Giles, Hickman, Lawrence, Lewis, Maury, Wayne	3 hr
Jun 27, 11:02 AM CDT	Special Weather Statement	OHX	Giles, Lawrence, Lewis, Wayne	28 min
Jun 27, 11:21 AM CDT	Flash Flood Warning	OHX	Lawrence, Wayne	3 hr
Jun 27, 11:39 AM CDT	Special Weather Statement	OHX	Lawrence, Lewis, Maury, Wayne	66 min
Jun 27, 12:27 PM CDT	Special Weather Statement	OHX	Williamson	48 min
Jun 27, 1:09 PM CDT	Special Weather Statement	OHX	Williamson	36 min
Jun 27, 1:21 PM CDT	Special Weather Statement	OHX	Dickson, Humphreys	54 min
Jun 27, 1:38 PM CDT	Special Weather Statement	OHX	Davidson, Rutherford	37 min
Jun 27, 1:56 PM CDT	Special Weather Statement	OHX	Dickson, Houston, Humphreys	49 min
Jun 27, 2:14 PM CDT	Special Weather Statement	OHX	Cheatham, Davidson, Wilson	46 min
Jun 27, 2:31 PM CDT	Special Weather Statement	OHX	Houston, Montgomery	44 min
Jun 27, 2:40 PM CDT	Special Weather Statement	OHX	Cannon, DeKalb, Smith, Wilson	50 min
Jun 27, 2:57 PM CDT	Special Weather Statement	OHX	Cannon, Coffee, Grundy, Warren	33 min
Jun 27, 3:18 PM CDT	Special Weather Statement	OHX	Clay, DeKalb, Jackson, Macon, Smith, Sumner and 1 more	27 min
Jun 27, 3:52 PM CDT	Severe Thunderstorm Warning	OHX	Clay, Jackson, Macon, Sumner	38 min
Jun 27, 4:32 PM CDT	Special Weather Statement	OHX	Clay, Overton	28 min
Jun 27, 5:34 PM CDT	Special Weather Statement	OHX	Cumberland	26 min
Jun 27, 5:55 PM CDT	Areal Flood Advisory	OHX	Cumberland, Fentress	3 hr

Nearby

Severe Thunderstorm Warnings in Tennessee, 2025 Every 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.