Alert archive / Tennessee / Flash Flood Warnings in 2024

Flash Flood Warning 12, NWS Nashville, TN

May 8, 2024Sumner County, Tennessee

NWS Nashville, TN issued this flash flood warning at May 8, 2024, 7:19 PM CDT for Sumner County, Tennessee. It was in force for 15 hr. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 8, 2024, 7:19 PM CDT (00:19 UTC)
Expired: May 9, 2024, 10:00 AM CDT
In force: 15 hr
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Emergency: Flash flood emergency
Damage threat: Catastrophic
Flood severity: None

County Sumner County, TN

The radar

The Nashville radar (KOHX), 12 km from the middle of the area, began a volume at 00:19 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.

What was reported inside it

Time	Report	Where	Remark
May 8, 9:03 PM CDT	FLASH FLOOD	2 Nne Hendersonville, TN	Anderson Rd blocked off due to flooding.
May 8, 9:29 PM CDT	FLASH FLOOD	6 W Gallatin, TN	Photo received of house inundated with flood water along Long Hollow Gardens in Gallatin.
May 9, 6:00 AM CDT	FLOOD	2 Wnw Gallatin, TN	Video on social media shows Long Hollow Golf Course underwater.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this flash flood warning; the first came 104 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 0.3 hours before the alert went out and 351 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: 2665 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1094 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 104 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 4.7

Open this sounding in Storm Lab

The text

As transmitted.

421 
WGUS54 KOHX 090019
FFWOHX
TNC165-090330-
/O.NEW.KOHX.FF.W.0012.240509T0019Z-240509T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Nashville TN
719 PM CDT Wed May 8 2024

...FLASH FLOOD EMERGENCY FOR SOUTHERN SUMNER COUNTY INCLUDING 
HENDERSONVILLE AND GALLATIN...

The National Weather Service in Nashville has issued a

* Flash Flood Warning for...
  Southern Sumner County in middle Tennessee...

* Until 1030 PM CDT.

* At 719 PM CDT, Water rescues are ongoing from Hendersonville to 
  Gallatin. Doppler radar indicated thunderstorms producing heavy 
  rain across the warned area. Flash flooding is ongoing and will 
  continue this evening.

  This is a FLASH FLOOD EMERGENCY for Southern Sumner County 
  including Hendersonville and Gallatin. This is a PARTICULARLY 
  DANGEROUS SITUATION. SEEK HIGHER GROUND NOW!

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Radar.

  IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK
           HIGHER GROUND NOW! Life threatening flash flooding of
           low water crossings, small creeks and streams, urban
           areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Gallatin, Hendersonville, Goodlettsville, Millersville, Lakewood, 
  Green Hill and Bledsoe Creek State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now! This is an extremely dangerous and 
life-threatening situation. Do not attempt to travel unless you are 
fleeing an area subject to flooding or under an evacuation order.

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3641 8628 3636 8628 3631 8630 3631 8636
      3634 8635 3636 8636 3636 8637 3631 8639
      3631 8641 3634 8644 3630 8651 3628 8652
      3632 8655 3630 8656 3626 8657 3624 8661
      3625 8664 3629 8664 3630 8667 3641 8675

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC

$$

LaRosa

1 follow-up statement

010 
WGUS54 KOHX 090316
FFWOHX
TNC165-091500-
/O.EXT.KOHX.FF.W.0012.000000T0000Z-240509T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Nashville TN
1016 PM CDT Wed May 8 2024

...FLASH FLOOD EMERGENCY FOR SOUTHERN SUMNER COUNTY INCLUDING 
HENDERSONVILLE AND GALLATIN...

The National Weather Service in Nashville has extended the

* Flash Flood Warning for...
  Southern Sumner County in middle Tennessee...

* Until 1000 AM CDT Thursday.

* At 1016 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain continue to impact the warned area. Between 5 and 7 
  inches of rain have fallen with rainfall rates up to 4 inches per 
  hour. Dangerous Flash flooding is ongoing and will continue 
  through the night.

  This is a FLASH FLOOD EMERGENCY for Southern Sumner County 
  including Hendersonville and Gallatin. This is a PARTICULARLY 
  DANGEROUS SITUATION. SEEK HIGHER GROUND NOW!

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Radar.

  IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK
           HIGHER GROUND NOW! Life threatening flash flooding of
           low water crossings, small creeks and streams, urban
           areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Gallatin, Hendersonville, Goodlettsville, Millersville, Lakewood, 
  Green Hill and Bledsoe Creek State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now! This is an extremely dangerous and 
life-threatening situation. Do not attempt to travel unless you are 
fleeing an area subject to flooding or under an evacuation order.

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3641 8628 3636 8628 3631 8630 3631 8636
      3634 8635 3636 8636 3636 8637 3631 8639
      3631 8641 3634 8644 3630 8651 3628 8652
      3632 8655 3630 8656 3626 8657 3624 8661
      3625 8664 3629 8664 3630 8667 3641 8675

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC

$$

LaRosa

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at May 8, 6:35 PM CDT, 44 minutes earlier.

Area forecast discussion, May 8, 6:35 PM CDT, 44 minutes before

Area Forecast Discussion
National Weather Service Nashville TN
635 PM CDT Wed May 8 2024

...New AVIATION...

.SHORT TERM...
(Rest of today through Friday)
Issued at 1152 AM CDT Wed May 8 2024

Earlier warm front now stationary and centered w-e just north of I-
40. This far northern area has served as the flood threat with
numerous advisories and warnings issued thus far. Flood reports have
been received mainly across the Robertson and Sumner county areas.
Energy along the boundary is working eastward with the bulk of the
activity now across the Plateau. To the south, airmass is hanging on
to a weak cap despite warming temps. Upstream however, 2 separate
slugs of energy will be pushing southeastward. This translates to 2
rounds of severe. The 1st will occur from 3pm to 6pm, with the 2nd
round in the 8 pm to midnight timeframe. All forms of severe weather
will be possible. Instabilities will be greatest across our south so
I would think the largest(non tornadic) hail would occur there. As
for rainfall amounts, the flood watch shall continue. Latest Hrrr
shows isolated storm totals of up to 6 inches across an area
stretching from far north central middle TN eastward across the
northern Plateau. Now models do hang onto the light to
moderate shower activity through 12Z to 18Z before ending.

Look for clearing skies Thursday night with cooler temps. Upper
troughing will feature a Friday shortwave with a few showers.
Saturday looks similar with an additional shortwave. The near term
temps will continue to run rather warm tonight and Thursday with 80s
for highs once again. Noticeably cooler by Friday morning with lows
back down into the 50s. We may seven see some 40s by Saturday
morning.

&&

.LONG TERM...
(Friday Night through next Wednesday)
Issued at 1152 AM CDT Wed May 8 2024

In the extended forecast, ridging will return for Monday. The next
system of interest will be for Tuesday and Wednesday of next week.
Instability looks weak for now so mostly just looking at showers and
non severe tstms for now.

Extended temps will start out on the cool side but will warm back to
near 80 for highs by mid week. Overnight lows will work back into
the lower 60s as well.

&&

.AVIATION...
(00Z TAFS)
Issued at 628 PM CDT Wed May 8 2024

Widespread thunderstorms will continue across the area through 09z.
IFR/LIFR conditions in thunderstorms due low cigs, low vis, heavy
rain, and gusty winds. A line of thunderstorms will move in to the
northwest after 04z and will work south and east through 09z.
Gusty winds will be possible along with that line along with the
heavy rain. VFR conditions should build in behind the line but
light rain will linger through the night. Rain moves out after
12z. Southerly winds up to 10 knots shifting westerly behind the
line of thunderstorms, higher winds possible in any thunderstorms.

&&

.PRELIMINARY POINT TEMPS/POPS...
Nashville      68  86  58  72 /  90  30  10  10
Clarksville    66  83  54  70 /  80  10  10  10
Crossville     63  79  53  66 /  90  50  20  30
Columbia       66  85  56  72 / 100  30  10  10
Cookeville     65  80  54  67 /  90  50  20  20
Jamestown      63  79  53  66 /  90  50  20  30
Lawrenceburg   66  84  57  72 / 100  40  10  10
Murfreesboro   66  85  55  72 / 100  40  10  10
Waverly        66  83  54  71 /  90  10  10  10

&&

.OHX WATCHES/WARNINGS/ADVISORIES...
Flood Watch through Thursday morning for Bedford-Cannon-Cheatham-
Clay-Coffee-Cumberland-Davidson-De Kalb-Dickson-Fentress-Grundy-
Hickman-Houston-Humphreys-Jackson-Lewis-Macon-Marshall-Maury-
Montgomery-Overton-Perry-Pickett-Putnam-Robertson-Rutherford-
Smith-Stewart-Sumner-Trousdale-Van Buren-Warren-White-Williamson-
Wilson.

&&

SHORT TERM...21
LONG TERM....21
AVIATION.....Mueller

In the hours before

Local storm report, May 8, 5:37 PM CDT, 1 hour 42 minutes before

Preliminary Local Storm Report
National Weather Service Nashville TN
537 PM CDT Wed May 8 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0534 PM     Hail             6 S Coopertown          36.35N 86.95W
05/08/2024  E1.25 Inch       Cheatham           TN   Public

            Report from mPING: Half Dollar (1.25 in.).

&&

RRH

Local storm report, May 8, 5:39 PM CDT, 1 hour 40 minutes before

Preliminary Local Storm Report
National Weather Service Nashville TN
539 PM CDT Wed May 8 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0503 PM     Funnel Cloud     2 SW Charlotte          36.17N 87.37W
05/08/2024                   Dickson            TN   Storm Chaser

&&

RRH

Local storm report, May 8, 5:44 PM CDT, 1 hour 35 minutes before

Preliminary Local Storm Report
National Weather Service Nashville TN
544 PM CDT Wed May 8 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0544 PM     Tornado          4 ENE Columbia          35.64N 86.98W
05/08/2024                   Maury              TN   Trained Spotter

&&

RRH

Local storm report, May 8, 6:02 PM CDT, 1 hour 17 minutes before

Preliminary Local Storm Report
National Weather Service Nashville TN
602 PM CDT Wed May 8 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0553 PM     Tornado          6 SSE Spring Hill       35.66N 86.89W
05/08/2024                   Maury              TN   Trained Spotter

            Significant, large tornado reported.

&&

RRH

Local storm report, May 8, 6:08 PM CDT, 1 hour 11 minutes before

Preliminary Local Storm Report
National Weather Service Nashville TN
608 PM CDT Wed May 8 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0603 PM     Hail             1 SSE Inglewood         36.20N 86.72W
05/08/2024  M1.00 Inch       Davidson           TN   Public

&&

RRH

Local storm report, May 8, 6:42 PM CDT, 37 minutes before

Preliminary Local Storm Report
National Weather Service Nashville TN
642 PM CDT Wed May 8 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0642 PM     Tstm Wnd Gst     7 S Murfreesboro        35.76N 86.41W
05/08/2024  E70 MPH          Rutherford         TN   Trained Spotter

&&

RRH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 7:00 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Marshall, Maury, Rutherford	45 min
May 8, 7:06 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee, DeKalb, Rutherford, Warren	39 min
May 8, 7:08 PM CDT	Tornado Warning	OHX	Bedford, Marshall, Rutherford	37 min
May 8, 7:13 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Putnam, White	47 min
May 8, 7:19 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Marshall	41 min
May 8, 7:23 PM CDT	Flash Flood Warning	OHX	Cannon, Cumberland, DeKalb, Putnam, Van Buren, Warren and 1 more	3 hr
May 8, 7:24 PM CDT	Tornado Warning	OHX	Cannon, Coffee, DeKalb, Warren, White	36 min
May 8, 7:29 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Marshall	46 min
May 8, 7:38 PM CDT	Tornado Warning	OHX	Bedford, Cannon, Coffee, Rutherford, Warren	37 min
May 8, 7:41 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Fentress, Overton, Putnam, White	34 min
May 8, 7:46 PM CDT	Tornado Warning	OHX	Cumberland, Fentress, Overton, Putnam	29 min
May 8, 7:48 PM CDT	Severe Thunderstorm Warning	OHX	Grundy, Van Buren, Warren	27 min
May 8, 7:50 PM CDT	Tornado Warning	OHX	Bedford, Giles, Marshall	25 min
May 8, 7:56 PM CDT	Tornado Warning	OHX	Giles	34 min
May 8, 8:02 PM CDT	River Flood Warning	OHX	Montgomery, Robertson	56 hr
May 8, 8:07 PM CDT	Areal Flood Advisory	OHX	Bedford, Cannon, Coffee, Grundy, Marshall, Rutherford and 1 more	3 hr
May 8, 8:07 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Coffee, Grundy, Warren	38 min
May 8, 8:09 PM CDT	Tornado Warning	OHX	Cumberland, Fentress	36 min
May 8, 8:13 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Fentress	32 min
May 8, 8:18 PM CDT	Severe Thunderstorm Warning	OHX	Grundy, Van Buren, Warren	27 min
May 8, 8:19 PM CDT	Tornado Warning	OHX	Coffee, Grundy, Warren	26 min
May 8, 8:30 PM CDT	River Flood Advisory	OHX	Sumner, Trousdale, Wilson	11 hr
May 8, 8:41 PM CDT	Tornado Warning	OHX	Coffee, Grundy, Warren	49 min
May 8, 9:00 PM CDT	Flash Flood Warning	OHX	Cannon, Coffee, Warren	3 hr
May 8, 9:43 PM CDT	Severe Thunderstorm Warning	OHX	Giles	32 min
May 8, 9:55 PM CDT	Severe Thunderstorm Warning	OHX	Montgomery, Stewart	35 min
May 8, 10:22 PM CDT	Flash Flood Warning	OHX	Clay, Fentress, Jackson, Overton, Pickett, Putnam and 1 more	8 hr
May 8, 10:37 PM CDT	Flash Flood Warning	OHX	Cumberland, DeKalb, Putnam, Smith, Van Buren, Warren and 1 more	8 hr
May 8, 10:51 PM CDT	Flash Flood Warning	OHX	Cannon, Cheatham, Davidson, DeKalb, Rutherford, Smith and 2 more	8 hr
May 8, 11:02 PM CDT	Flash Flood Warning	OHX	Bedford, Cannon, Coffee, Grundy, Rutherford, Van Buren and 1 more	8 hr
May 8, 11:26 PM CDT	River Flood Advisory	OHX	Davidson	4 days
May 9, 12:49 AM CDT	Flash Flood Warning	OHX	Cheatham, Dickson, Houston, Montgomery, Robertson, Stewart	5 hr
May 9, 12:54 AM CDT	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Humphreys, Perry	36 min
May 9, 1:03 AM CDT	Special Weather Statement	OHX	Stewart	27 min
May 9, 1:06 AM CDT	Tornado Warning	OHX	Hickman, Perry	24 min
May 9, 1:14 AM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Robertson, Sumner, Wilson	30 min
May 9, 1:27 AM CDT	Severe Thunderstorm Warning	OHX	Macon, Robertson, Sumner	33 min
May 9, 1:27 AM CDT	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Maury, Williamson	33 min
May 9, 1:43 AM CDT	Severe Thunderstorm Warning	OHX	Dickson, Houston, Humphreys, Montgomery, Stewart	34 min
May 9, 1:58 AM CDT	Special Weather Statement	OHX	Macon, Smith, Trousdale	47 min
May 9, 1:59 AM CDT	Severe Thunderstorm Warning	OHX	Davidson, Maury, Rutherford, Williamson	46 min
May 9, 2:06 AM CDT	Flash Flood Warning	OHX	Cheatham, Davidson, Jackson, Macon, Robertson, Smith and 3 more	6 hr
May 9, 2:17 AM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Hickman, Lewis, Maury and 1 more	25 min
May 9, 2:50 AM CDT	Special Weather Statement	OHX	Cannon	25 min
May 9, 3:03 AM CDT	Special Weather Statement	OHX	Bedford, Giles, Lawrence, Marshall, Maury	42 min
May 9, 3:08 AM CDT	Severe Thunderstorm Warning	OHX	Bedford, Giles, Marshall, Maury	37 min
May 9, 3:13 AM CDT	Tornado Warning	OHX	Bedford, Marshall, Maury	32 min
May 9, 3:20 AM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Marshall	25 min
May 9, 3:50 AM CDT	Special Weather Statement	OHX	Coffee, Grundy, Warren	25 min
May 9, 4:06 AM CDT	Severe Thunderstorm Warning	OHX	Coffee, Grundy, Warren	26 min
May 9, 4:21 AM CDT	Tornado Warning	OHX	Grundy	9 min
May 9, 4:58 AM CDT	River Flood Advisory	OHX	Davidson	66 hr
May 9, 5:05 AM CDT	River Flood Advisory	OHX	Cheatham	11 hr
May 9, 5:15 AM CDT	River Flood Advisory	OHX	Stewart	4 days
May 9, 6:51 AM CDT	Areal Flood Advisory	OHX	Bedford, Cannon, Coffee, Cumberland, DeKalb, Grundy and 8 more	3 hr
May 9, 7:11 AM CDT	River Flood Advisory	OHX	Davidson	5 hr
May 9, 7:58 AM CDT	River Flood Warning	OHX	Sumner, Trousdale, Wilson	26 hr
May 9, 9:55 AM CDT	Flash Flood Warning	OHX	Sumner	3 hr
May 9, 9:58 AM CDT	Flash Flood Warning	OHX	Robertson	3 hr
May 9, 10:25 AM CDT	River Flood Warning	OHX	Montgomery	58 hr
May 9, 10:25 AM CDT	River Flood Warning	OHX	Davidson	36 hr
May 9, 10:25 AM CDT	River Flood Warning	OHX	Stewart	60 hr
May 9, 10:25 AM CDT	River Flood Advisory	OHX	Cheatham	39 hr
May 9, 10:25 AM CDT	River Flood Advisory	OHX	Davidson	49 hr
May 9, 10:25 AM CDT	River Flood Advisory	OHX	Davidson	44 hr
May 9, 10:25 AM CDT	River Flood Advisory	OHX	Davidson	11 hr
May 9, 10:25 AM CDT	River Flood Advisory	OHX	Davidson	48 hr
May 9, 10:25 AM CDT	River Flood Advisory	OHX	Davidson	47 hr
May 9, 1:24 PM CDT	River Flood Advisory	OHX	Williamson	30 hr
May 9, 1:26 PM CDT	River Flood Advisory	OHX	Davidson, Williamson	33 hr
May 9, 1:55 PM CDT	Areal Flood Advisory	OHX	Macon, Robertson, Sumner, Trousdale	12 hr
May 9, 1:57 PM CDT	Areal Flood Advisory	OHX	Rutherford	12 hr
May 9, 2:04 PM CDT	Areal Flood Advisory	OHX	White	12 hr
May 9, 2:08 PM CDT	Areal Flood Advisory	OHX	Warren	12 hr

Nearby

Flash Flood Warnings in Tennessee, 2024 Every flash flood warning in 2024

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.