Alert archive / Tennessee / Flash Flood Watches in 2021
Flash Flood Watch 9, NWS Nashville, TN
NWS Nashville, TN issued this flash flood watch at Sep 18, 2021, 2:24 AM CDT for 38 counties in Tennessee. It was in force for 65 hr.
The area
The counties it named.
The facts
- Issued
- Sep 18, 2021, 2:24 AM CDT (07:24 UTC)
- Expired
- Sep 20, 2021, 7:00 PM CDT
- In force
- 65 hr
- Issued by
- NWS Nashville, TN
- Flood severity
- None
All 38 counties
Bedford County, TN, Cannon County, TN, Cheatham County, TN, Clay County, TN, Coffee County, TN, Cumberland County, TN, Davidson County, TN, DeKalb County, TN, Dickson County, TN, Fentress County, TN, Giles County, TN, Grundy County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Lawrence County, TN, Lewis County, TN, Macon County, TN, Marshall County, TN, Maury County, TN, Montgomery County, TN, Overton County, TN, Perry County, TN, Pickett County, TN, Putnam County, TN, Robertson County, TN, Rutherford County, TN, Smith County, TN, Stewart County, TN, Sumner County, TN, Trousdale County, TN, Van Buren County, TN, Warren County, TN, Wayne County, TN, White County, TN, Williamson County, TN, Wilson County, TN
The radar
The Nashville radar (KOHX), 30 km from the middle of the area, began a volume at 07:28 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 00:00Z, 7.4 hours before the alert went out and 20 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
- 845 J/kg
- Mixed-layer CIN
- -74 J/kg
- Mixed-layer LCL
- 742 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
749 WGUS64 KOHX 180724 FFAOHX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Nashville TN 224 AM CDT Sat Sep 18 2021 TNZ007-008-026>028-056>062-075-093>095-181215- /O.NEW.KOHX.FF.A.0009.210918T0724Z-210920T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Robertson-Sumner-Cheatham-Davidson-Wilson-Perry-Hickman-Lewis- Williamson-Maury-Marshall-Rutherford-Bedford-Wayne-Lawrence-Giles- Including the cities of Goodlettsville, Lebanon, Pulaski, Springfield, Linden, Murfreesboro, Columbia, Brentwood, Nashville, Kingston Springs, Ashland City, Waynesboro, Franklin, La Vergne, Lewisburg, Lawrenceburg, Lobelville, Mount Juliet, Smyrna, Clifton, Hendersonville, Hohenwald, Centerville, Shelbyville, and Gallatin 224 AM CDT Sat Sep 18 2021 ...FLASH FLOOD WATCH IN EFFECT THROUGH SUNDAY EVENING... The National Weather Service in Nashville has issued a * Flash Flood Watch for a portion of Middle Tennessee, including the following areas, Bedford, Cheatham, Davidson, Giles, Hickman, Lawrence, Lewis, Marshall, Maury, Perry, Robertson, Rutherford, Sumner, Wayne, Williamson and Wilson. * Through Sunday evening. * Numerous showers and thunderstorms are expected to produce moderate to heavy rain today, with a break in the rain tonight before more rain falls on Sunday. Rainfall totals of 1 to 3 inches are expected through Sunday, with locally higher amounts of 4 to 6 inches possible, which may lead to flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ Shamburger
7 follow-up statements
407 WGUS64 KOHX 181633 FFAOHX Flood Watch National Weather Service Nashville TN 1133 AM CDT Sat Sep 18 2021 TNZ007-008-026>028-056>062-075-093>095-190300- /O.CON.KOHX.FF.A.0009.000000T0000Z-210920T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Robertson-Sumner-Cheatham-Davidson-Wilson-Perry-Hickman-Lewis- Williamson-Maury-Marshall-Rutherford-Bedford-Wayne-Lawrence-Giles- Including the cities of Goodlettsville, Lebanon, Pulaski, Springfield, Linden, Murfreesboro, Columbia, Brentwood, Nashville, Kingston Springs, Ashland City, Waynesboro, Franklin, La Vergne, Lewisburg, Lawrenceburg, Lobelville, Mount Juliet, Smyrna, Clifton, Hendersonville, Hohenwald, Centerville, Shelbyville, and Gallatin 1133 AM CDT Sat Sep 18 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY EVENING... The Flash Flood Watch continues for * A portion of Middle Tennessee, including the following areas, Bedford, Cheatham, Davidson, Giles, Hickman, Lawrence, Lewis, Marshall, Maury, Perry, Robertson, Rutherford, Sumner, Wayne, Williamson and Wilson. * Through Sunday evening. * Numerous showers and thunderstorms are expected to produce moderate to heavy rain today, with a break in the rain tonight before more rain falls on Sunday. Rainfall totals of 1 to 3 inches are expected through Sunday, with locally higher amounts of 4 to 6 inches possible, which may lead to flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ 21
410 WGUS64 KOHX 190050 FFAOHX Flood Watch National Weather Service Nashville TN 750 PM CDT Sat Sep 18 2021 TNZ007-008-026>028-056>062-075-093>095-191000- /O.CON.KOHX.FF.A.0009.000000T0000Z-210920T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Robertson-Sumner-Cheatham-Davidson-Wilson-Perry-Hickman-Lewis- Williamson-Maury-Marshall-Rutherford-Bedford-Wayne-Lawrence-Giles- Including the cities of Goodlettsville, Lebanon, Pulaski, Springfield, Linden, Murfreesboro, Columbia, Brentwood, Nashville, Kingston Springs, Ashland City, Waynesboro, Franklin, La Vergne, Lewisburg, Lawrenceburg, Lobelville, Mount Juliet, Smyrna, Clifton, Hendersonville, Hohenwald, Centerville, Shelbyville, and Gallatin 750 PM CDT Sat Sep 18 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY EVENING... The Flash Flood Watch continues for * A portion of Middle Tennessee, including the following areas, Bedford, Cheatham, Davidson, Giles, Hickman, Lawrence, Lewis, Marshall, Maury, Perry, Robertson, Rutherford, Sumner, Wayne, Williamson and Wilson. * Through Sunday evening. * Even with a potential break in rainfall tonight, more rainfall is expected to fall on Sunday. Rainfall totals of 1 to 3 inches are expected through Sunday, with locally higher amounts of 4 to 6 inches possible, which may lead to flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ JB Wright
755 WGUS64 KOHX 190713 FFAOHX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Nashville TN 213 AM CDT Sun Sep 19 2021 TNZ005-006-009>011-023>025-029>034-063>066-077>080-192100- /O.EXB.KOHX.FF.A.0009.000000T0000Z-210921T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Stewart-Montgomery-Macon-Clay-Pickett-Houston-Humphreys-Dickson- Trousdale-Smith-Jackson-Putnam-Overton-Fentress-Cannon-De Kalb-White- Cumberland-Coffee-Warren-Grundy-Van Buren- Including the cities of Crossville, Carthage, McEwen, Clarksville, Coalmont, Altamont, Jamestown, Celina, Waverly, Tullahoma, Woodbury, McMinnville, Sparta, Dickson, Manchester, Cookeville, New Johnsonville, Livingston, Lafayette, Gainesboro, Hartsville, Allardt, Tennessee Ridge, Spencer, Dover, Byrdstown, Erin, South Carthage, Smithville, and Gordonsville 213 AM CDT Sun Sep 19 2021 ...FLASH FLOOD WATCH IN EFFECT THROUGH MONDAY EVENING... The National Weather Service in Nashville has expanded the * Flash Flood Watch to include a portion of Middle Tennessee, including the following areas, Cannon, Clay, Coffee, Cumberland, De Kalb, Dickson, Fentress, Grundy, Houston, Humphreys, Jackson, Macon, Montgomery, Overton, Pickett, Putnam, Smith, Stewart, Trousdale, Van Buren, Warren and White. * Through Monday evening. * Numerous showers and thunderstorms with moderate to heavy rain are expected again today, with a break in the rain tonight before more rain falls on Monday. Additional rainfall amounts of 1 to 3 inches with localized amounts of 4 to 6 inches are anticipated, which may lead to flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ TNZ007-008-026>028-056>062-075-093>095-192100- /O.EXT.KOHX.FF.A.0009.000000T0000Z-210921T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Robertson-Sumner-Cheatham-Davidson-Wilson-Perry-Hickman-Lewis- Williamson-Maury-Marshall-Rutherford-Bedford-Wayne-Lawrence-Giles- Including the cities of Goodlettsville, Lebanon, Pulaski, Springfield, Linden, Murfreesboro, Columbia, Brentwood, Nashville, Kingston Springs, Ashland City, Waynesboro, Franklin, La Vergne, Lewisburg, Lawrenceburg, Lobelville, Mount Juliet, Smyrna, Clifton, Hendersonville, Hohenwald, Centerville, Shelbyville, and Gallatin 213 AM CDT Sun Sep 19 2021 ...FLASH FLOOD WATCH NOW IN EFFECT THROUGH MONDAY EVENING... The Flash Flood Watch is now in effect for * A portion of Middle Tennessee, including the following areas, Bedford, Cheatham, Davidson, Giles, Hickman, Lawrence, Lewis, Marshall, Maury, Perry, Robertson, Rutherford, Sumner, Wayne, Williamson and Wilson. * Through Monday evening. * Numerous showers and thunderstorms with moderate to heavy rain are expected again today, with a break in the rain tonight before more rain falls on Monday. Additional rainfall amounts of 1 to 3 inches with localized amounts of 4 to 6 inches are anticipated, which may lead to flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ Shamburger
143 WGUS64 KOHX 191906 FFAOHX Flood Watch National Weather Service Nashville TN 206 PM CDT Sun Sep 19 2021 TNZ005>011-023>034-056>066-075-077>080-093>095-200315- /O.CON.KOHX.FF.A.0009.000000T0000Z-210921T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Stewart-Montgomery-Robertson-Sumner-Macon-Clay-Pickett-Houston- Humphreys-Dickson-Cheatham-Davidson-Wilson-Trousdale-Smith-Jackson- Putnam-Overton-Fentress-Perry-Hickman-Lewis-Williamson-Maury- Marshall-Rutherford-Cannon-De Kalb-White-Cumberland-Bedford-Coffee- Warren-Grundy-Van Buren-Wayne-Lawrence-Giles- Including the cities of Goodlettsville, Crossville, Carthage, Smyrna, Lawrenceburg, McEwen, Clarksville, Pulaski, La Vergne, Coalmont, Altamont, Jamestown, Springfield, Linden, Waverly, Lewisburg, Columbia, Brentwood, Tullahoma, Woodbury, McMinnville, Nashville, Spencer, Kingston Springs, Ashland City, Dickson, Waynesboro, South Carthage, Sparta, Smithville, Murfreesboro, Cookeville, New Johnsonville, Livingston, Lafayette, Franklin, Gainesboro, Hartsville, Allardt, Tennessee Ridge, Centerville, Dover, Byrdstown, Lobelville, Mount Juliet, Manchester, Lebanon, Clifton, Celina, Hendersonville, Hohenwald, Gordonsville, Shelbyville, Erin, and Gallatin 206 PM CDT Sun Sep 19 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY EVENING... The Flash Flood Watch continues for * A portion of Middle Tennessee, including the following areas, Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland, Davidson, De Kalb, Dickson, Fentress, Giles, Grundy, Hickman, Houston, Humphreys, Jackson, Lawrence, Lewis, Macon, Marshall, Maury, Montgomery, Overton, Perry, Pickett, Putnam, Robertson, Rutherford, Smith, Stewart, Sumner, Trousdale, Van Buren, Warren, Wayne, White, Williamson and Wilson. * Through Monday evening. * Numerous showers and thunderstorms with moderate to heavy rain are expected again through late afternoon, with a break in the rain tonight before more rain falls on Monday. Additional rainfall amounts of 1 to 3 inches with localized amounts of 4 to 6 inches are anticipated, which may lead to flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ 21
348 WGUS64 KOHX 200216 FFAOHX Flood Watch National Weather Service Nashville TN 916 PM CDT Sun Sep 19 2021 TNZ005>011-023>034-056>066-075-077>080-093>095-201030- /O.CON.KOHX.FF.A.0009.000000T0000Z-210921T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Stewart-Montgomery-Robertson-Sumner-Macon-Clay-Pickett-Houston- Humphreys-Dickson-Cheatham-Davidson-Wilson-Trousdale-Smith- Jackson-Putnam-Overton-Fentress-Perry-Hickman-Lewis-Williamson- Maury-Marshall-Rutherford-Cannon-De Kalb-White-Cumberland-Bedford- Coffee-Warren-Grundy-Van Buren-Wayne-Lawrence-Giles- Including the cities of Dover, Clarksville, Springfield, Hendersonville, Gallatin, Goodlettsville, Lafayette, Celina, Byrdstown, Erin, Tennessee Ridge, Waverly, New Johnsonville, McEwen, Dickson, Ashland City, Kingston Springs, Nashville, Lebanon, Mount Juliet, Hartsville, Carthage, South Carthage, Gordonsville, Gainesboro, Cookeville, Livingston, Jamestown, Allardt, Linden, Lobelville, Centerville, Hohenwald, Franklin, Brentwood, Columbia, Lewisburg, Murfreesboro, Smyrna, La Vergne, Woodbury, Smithville, Sparta, Crossville, Shelbyville, Tullahoma, Manchester, McMinnville, Altamont, Coalmont, Spencer, Clifton, Waynesboro, Lawrenceburg, and Pulaski 916 PM CDT Sun Sep 19 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY EVENING... The Flash Flood Watch continues for * A portion of Middle Tennessee, including the following areas, Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland, Davidson, De Kalb, Dickson, Fentress, Giles, Grundy, Hickman, Houston, Humphreys, Jackson, Lawrence, Lewis, Macon, Marshall, Maury, Montgomery, Overton, Perry, Pickett, Putnam, Robertson, Rutherford, Smith, Stewart, Sumner, Trousdale, Van Buren, Warren, Wayne, White, Williamson, and Wilson. * Through Monday evening * Numerous showers and a few thunderstorms will begin redeveloping later tonight and will continue on Monday. Widespread amounts of one-half to one inch of additional rainfall are expect tonight and tomorrow, with locally higher amounts possible. When added to rain that has already fallen over the weekend, some additional flooding is possible as creeks and streams and rivers continue to rise. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
926 WGUS64 KOHX 200744 FFAOHX Flood Watch National Weather Service Nashville TN 244 AM CDT Mon Sep 20 2021 TNZ005>011-023>034-056>066-075-077>080-093>095-210000- /O.CON.KOHX.FF.A.0009.000000T0000Z-210921T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Stewart-Montgomery-Robertson-Sumner-Macon-Clay-Pickett-Houston- Humphreys-Dickson-Cheatham-Davidson-Wilson-Trousdale-Smith-Jackson- Putnam-Overton-Fentress-Perry-Hickman-Lewis-Williamson-Maury- Marshall-Rutherford-Cannon-De Kalb-White-Cumberland-Bedford-Coffee- Warren-Grundy-Van Buren-Wayne-Lawrence-Giles- Including the cities of Goodlettsville, Crossville, Carthage, Smyrna, Lawrenceburg, McEwen, Clarksville, Pulaski, La Vergne, Coalmont, Altamont, Jamestown, Springfield, Linden, Waverly, Lewisburg, Columbia, Brentwood, Tullahoma, Woodbury, McMinnville, Nashville, Spencer, Kingston Springs, Ashland City, Dickson, Waynesboro, South Carthage, Sparta, Smithville, Murfreesboro, Cookeville, New Johnsonville, Livingston, Lafayette, Franklin, Gainesboro, Hartsville, Allardt, Tennessee Ridge, Centerville, Dover, Byrdstown, Lobelville, Mount Juliet, Manchester, Lebanon, Clifton, Celina, Hendersonville, Hohenwald, Gordonsville, Shelbyville, Erin, and Gallatin 244 AM CDT Mon Sep 20 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... The Flash Flood Watch continues for * A portion of Middle Tennessee, including the following areas, Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland, Davidson, De Kalb, Dickson, Fentress, Giles, Grundy, Hickman, Houston, Humphreys, Jackson, Lawrence, Lewis, Macon, Marshall, Maury, Montgomery, Overton, Perry, Pickett, Putnam, Robertson, Rutherford, Smith, Stewart, Sumner, Trousdale, Van Buren, Warren, Wayne, White, Williamson and Wilson. * Through this evening. * Another round of numerous showers and a few thunderstorms is expected today before rainfall ends this evening. Additional rainfall amounts up to 1 to 2 inches are possible, which may lead to flash flooding of roads and low lying areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ Shamburger
746 WGUS64 KOHX 201908 FFAOHX Flood Watch National Weather Service Nashville TN 208 PM CDT Mon Sep 20 2021 TNZ005>011-023>034-056>066-075-077>080-093>095-210000- /O.CON.KOHX.FF.A.0009.000000T0000Z-210921T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Stewart-Montgomery-Robertson-Sumner-Macon-Clay-Pickett-Houston- Humphreys-Dickson-Cheatham-Davidson-Wilson-Trousdale-Smith-Jackson- Putnam-Overton-Fentress-Perry-Hickman-Lewis-Williamson-Maury- Marshall-Rutherford-Cannon-De Kalb-White-Cumberland-Bedford-Coffee- Warren-Grundy-Van Buren-Wayne-Lawrence-Giles- Including the cities of Goodlettsville, Crossville, Carthage, Smyrna, Lawrenceburg, McEwen, Clarksville, Pulaski, La Vergne, Coalmont, Altamont, Jamestown, Springfield, Linden, Waverly, Lewisburg, Columbia, Brentwood, Tullahoma, Woodbury, McMinnville, Nashville, Spencer, Kingston Springs, Ashland City, Dickson, Waynesboro, South Carthage, Sparta, Smithville, Murfreesboro, Cookeville, New Johnsonville, Livingston, Lafayette, Franklin, Gainesboro, Hartsville, Allardt, Tennessee Ridge, Centerville, Dover, Byrdstown, Lobelville, Mount Juliet, Manchester, Lebanon, Clifton, Celina, Hendersonville, Hohenwald, Gordonsville, Shelbyville, Erin, and Gallatin 208 PM CDT Mon Sep 20 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... The Flash Flood Watch continues for * A portion of Middle Tennessee, including the following areas, Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland, Davidson, De Kalb, Dickson, Fentress, Giles, Grundy, Hickman, Houston, Humphreys, Jackson, Lawrence, Lewis, Macon, Marshall, Maury, Montgomery, Overton, Perry, Pickett, Putnam, Robertson, Rutherford, Smith, Stewart, Sumner, Trousdale, Van Buren, Warren, Wayne, White, Williamson and Wilson. * Until 7 PM CDT this evening. * Showers and a few thunderstorms area expected to diminish by this evening, but heavy rainfall is still possible through the afternoon hours. This heavy rain is falling over saturated grounds and can quickly lead to flash flooding in the watch area. Be especially cautious around flood prone areas, and along creeks and streams. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ LaRosa
The office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 17, 7:04 PM CDT | Areal Flood Advisory | OHX | Perry, Wayne | 2 hr |
| Sep 17, 8:32 PM CDT | Areal Flood Advisory | OHX | Hickman | 58 min |
| Sep 18, 9:54 AM CDT | Areal Flood Advisory | OHX | Cheatham, Davidson, Dickson, Houston, Humphreys, Stewart and 1 more | 3 hr |
| Sep 18, 10:28 AM CDT | Areal Flood Advisory | OHX | Davidson, Rutherford, Sumner, Williamson, Wilson | 3 hr |
| Sep 18, 10:49 AM CDT | Areal Flood Advisory | OHX | Jackson, Smith, Trousdale, Wilson | 3 hr |
| Sep 18, 11:21 AM CDT | Areal Flood Advisory | OHX | Jackson, Overton, Putnam | 3 hr |
| Sep 18, 1:29 PM CDT | Areal Flood Advisory | OHX | Bedford, Coffee | 3 hr |
| Sep 18, 3:25 PM CDT | Flash Flood Warning | OHX | Bedford, Coffee | 4 hr |
| Sep 18, 4:15 PM CDT | Areal Flood Advisory | OHX | Giles | 2 hr |
| Sep 18, 4:32 PM CDT | River Flood Advisory | OHX | Bedford | 4 hr |
| Sep 18, 5:21 PM CDT | Flash Flood Warning | OHX | Giles | 114 min |
Nearby
Flash Flood Watches in Tennessee, 2021Every flash flood watch in 2021
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.