Alert archive / Tennessee / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 218, NWS Nashville, TN
NWS Nashville, TN issued this severe thunderstorm warning at Aug 12, 2023, 12:58 PM CDT for 8 counties in Tennessee. It was in force for 32 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
- Aug 12, 2023, 12:58 PM CDT (17:58 UTC)
- Expired
- Aug 12, 2023, 1:30 PM CDT
- In force
- 32 min
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties DeKalb County, TN, Jackson County, TN, Overton County, TN, Putnam County, TN, Smith County, TN, Van Buren County, TN, Warren County, TN, White County, TN
The radar
The Nashville radar (KOHX), 88 km from the middle of the area, began a volume at 17:58 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 |
|---|---|---|---|
| Aug 12, 10:50 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 6.0 hours before the alert went out and 89 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
- 2540 J/kg
- Mixed-layer CIN
- -67 J/kg
- Mixed-layer LCL
- 811 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 100 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.3
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 Aug 12, 12:41 PM CDT, 17 minutes earlier.
Area forecast discussion, Aug 12, 12:41 PM CDT, 17 minutes before
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Special weather statement, Aug 12, 11:44 AM CDT, 1 hour 14 minutes before
Special Weather Statement
National Weather Service Nashville TN
1144 AM CDT Sat Aug 12 2023
TNZ008-027>029-121715-
Davidson TN-Wilson TN-Trousdale TN-Sumner TN-
1144 AM CDT Sat Aug 12 2023
...Strong thunderstorms will impact portions of east central
Davidson, southeastern Sumner, Wilson and Trousdale Counties through
1215 PM CDT...
At 1143 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Gallatin to near Hermitage. Movement was
east at 30 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...
Gallatin, Lebanon, Hartsville, Hendersonville, Mount Juliet,
Hermitage, Rural Hill, Belinda City, Green Hill, Tuckers Crossroads,
Bledsoe Creek State Park, Dickerson Chapel Recreation Area,
Cottontown, Percy Priest Lake and Gladeville.
This includes the following highways...
Interstate 40 between mile markers 219 and 245.
Interstate 840 between mile markers 68 and 76.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
A Severe Thunderstorm Watch remains in effect until 600 PM CDT for
Middle Tennessee.
&&
LAT...LON 3644 8610 3603 8619 3613 8664 3647 8654
TIME...MOT...LOC 1643Z 284DEG 28KT 3643 8650 3615 8659
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
ShamburgerLocal storm report, Aug 12, 11:58 AM CDT, 1 hour before
Preliminary Local Storm Report
National Weather Service Nashville TN
1158 AM CDT Sat Aug 12 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1147 AM Funnel Cloud 3 WSW Brentwood 35.98N 86.83W
08/12/2023 Williamson TN Trained Spotter
Funnel cloud reported 2 miles north of
downtown Franklin along Highway 31.
&&
APBLocal storm report, Aug 12, 12:09 PM CDT, 49 minutes before
Preliminary Local Storm Report
National Weather Service Nashville TN
1209 PM CDT Sat Aug 12 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1125 AM Tstm Wnd Dmg 3 NNW Burns 36.09N 87.33W
08/12/2023 Dickson TN Trained Spotter
Photo of tree down in Dickson on Hurt Lane.
&&
APBLocal storm report, Aug 12, 12:20 PM CDT, 38 minutes before
Preliminary Local Storm Report
National Weather Service Nashville TN
1220 PM CDT Sat Aug 12 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1115 AM Tstm Wnd Dmg 2 S Greenbrier 36.40N 86.80W
08/12/2023 Robertson TN Trained Spotter
Trees down and estimated wind gusts of 60
mph...pea size hail...power
outages...several trees hit by lightning.
&&Local storm report, Aug 12, 12:47 PM CDT, 11 minutes before
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</html>The office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 9:19 AM CDT | Special Weather Statement | OHX | Houston, Stewart | 41 min |
| Aug 12, 9:55 AM CDT | Areal Flood Advisory | OHX | Stewart | 19 min |
| Aug 12, 10:00 AM CDT | Special Weather Statement | OHX | Houston, Montgomery, Stewart | 30 min |
| Aug 12, 10:12 AM CDT | Flash Flood Warning | OHX | Montgomery, Stewart | 108 min |
| Aug 12, 10:27 AM CDT | Severe Thunderstorm Warning | OHX | Cheatham, Montgomery, Robertson | 33 min |
| Aug 12, 10:33 AM CDT | Special Weather Statement | OHX | Dickson, Houston, Humphreys, Montgomery, Stewart | 57 min |
| Aug 12, 10:58 AM CDT | Special Weather Statement | OHX | Robertson | 32 min |
| Aug 12, 11:07 AM CDT | Severe Thunderstorm Warning | OHX | Cheatham, Davidson, Robertson, Sumner, Wilson | 38 min |
| Aug 12, 11:09 AM CDT | Severe Thunderstorm Warning | OHX | Cheatham, Davidson, Dickson, Williamson | 51 min |
| Aug 12, 11:26 AM CDT | Severe Thunderstorm Warning | OHX | Hickman, Maury, Williamson | 34 min |
| Aug 12, 11:44 AM CDT | Special Weather Statement | OHX | Trousdale, Wilson | 31 min |
| Aug 12, 11:49 AM CDT | Severe Thunderstorm Warning | OHX | Davidson, Rutherford, Smith, Sumner, Trousdale, Williamson and 1 more | 41 min |
| Aug 12, 11:56 AM CDT | Severe Thunderstorm Warning | OHX | Bedford, Giles, Marshall, Maury, Rutherford, Williamson | 34 min |
| Aug 12, 12:04 PM CDT | Tornado Warning | OHX | Rutherford, Wilson | 26 min |
| Aug 12, 12:21 PM CDT | Tornado Warning | OHX | Cannon, DeKalb, Rutherford, Smith, Wilson | 26 min |
| Aug 12, 12:26 PM CDT | Severe Thunderstorm Warning | OHX | Cannon, DeKalb, Jackson, Putnam, Rutherford, Smith and 2 more | 33 min |
| Aug 12, 12:29 PM CDT | Severe Thunderstorm Warning | OHX | Bedford, Cannon, Coffee, Grundy, Marshall, Rutherford and 1 more | 46 min |
| Aug 12, 1:10 PM CDT | Severe Thunderstorm Warning | OHX | Coffee, Grundy, Van Buren, Warren | 50 min |
| Aug 12, 1:24 PM CDT | Severe Thunderstorm Warning | OHX | Cumberland, Fentress, Overton, Putnam, Van Buren, White | 66 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 2023Every severe thunderstorm warning in 2023
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.