Alert archive / Tennessee / Flood Watches in 2021
Flood Watch 2, NWS Nashville, TN
NWS Nashville, TN issued this flood watch at Mar 24, 2021, 1:28 PM CDT for 38 counties in Tennessee. It took effect at Mar 25, 2021, 1:00 AM CDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Mar 24, 2021, 1:28 PM CDT (18:28 UTC)
- In effect from
- Mar 25, 2021, 1:00 AM CDT
- Expired
- Mar 24, 2021, 8:08 PM CDT
- In force
- 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 18:25 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, 6.5 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 700 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 199 m²/s²
- 0-3 km storm-relative helicity
- 304 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
337 WGUS64 KOHX 241828 FFAOHX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Nashville TN 128 PM CDT Wed Mar 24 2021 TNZ005>011-023>034-056>066-075-077>080-093>095-250900- /O.NEW.KOHX.FA.A.0002.210325T0600Z-210326T0600Z/ /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 128 PM CDT Wed Mar 24 2021 ...FLOOD WATCH IN EFFECT FROM 1 AM CDT THURSDAY THROUGH LATE THURSDAY NIGHT... The National Weather Service in Nashville has issued a * Flood Watch for 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. * From 1 AM CDT Thursday through late Thursday night * Multiple waves of heavy rainfall from Thursday morning through late Thursday night will cause excessive rain amounts of 1 to 4 inches. * Heavy rainfall will cause excess runoff and localized flash flooding in the watch area. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ Schaper
3 follow-up statements
864 WGUS64 KOHX 242347 FFAOHX Flood Watch National Weather Service Nashville TN 647 PM CDT Wed Mar 24 2021 TNZ005>011-023>034-056>066-075-077>080-093>095-250900- /O.CON.KOHX.FA.A.0002.210325T0600Z-210326T0600Z/ /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 647 PM CDT Wed Mar 24 2021 ...FLASH FLOOD WATCH IN EFFECT FROM 1 AM CDT THURSDAY THROUGH 1 AM CDT FRIDAY MORNING... The 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. * From 1 AM CDT Thursday through late Thursday night * Multiple rounds of heavy rainfall from 1 AM CDT Thursday morning through 1 AM CDT Friday morning will cause excessive rainfall amounts of 1-3 inches, with locally higher amounts of around 4 inches possible. * Heavy rainfall will cause excess runoff and localized flash flooding in the watch area. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible flood warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ JB Wright
036 WGUS64 KOHX 242354 AAA FFAOHX Flood Watch...UPDATED National Weather Service Nashville TN 654 PM CDT Wed Mar 24 2021 TNZ005>011-023>034-056>066-075-077>080-093>095-250900- /O.CON.KOHX.FA.A.0002.210325T0600Z-210326T0600Z/ /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 654 PM CDT Wed Mar 24 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 1 AM CDT THURSDAY THROUGH 1 AM CDT FRIDAY... 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. * From 1 AM CDT Thursday through 1 AM CDT Friday * Multiple rounds of heavy rainfall from 1 AM CDT Thursday through 1 AM CDT Friday will cause excessive rainfall amounts of 1-3 inches, with locally higher amounts of around 4 inches possible. * Heavy rainfall will cause excess runoff and localized flash flooding in the watch area. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible flood warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ JB Wright
738 WGUS64 KOHX 250108 FFAOHX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Nashville TN 808 PM CDT Wed Mar 24 2021 TNZ005>011-023>034-056>066-075-077>080-093>095-250900- /O.CAN.KOHX.FA.A.0002.210325T0600Z-210326T0600Z/ /O.NEW.KOHX.FF.A.0001.210325T0600Z-210326T0600Z/ /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 808 PM CDT Wed Mar 24 2021 ...FLASH FLOOD WATCH IN EFFECT FROM 1 AM CDT THURSDAY THROUGH 1 AM CDT FRIDAY... ...PREVIOUSLY ISSUED FLOOD WATCH HAS BEEN REPLACED BY THIS FLASH FLOOD WATCH... The National Weather Service in Nashville has issued a * Flash Flood Watch 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. * From 1 AM CDT Thursday through late Thursday night * Multiple rounds of heavy rainfall from 1 AM CDT Thursday through 1 AM CDT Friday will cause excessive rainfall amounts of 1 to 3 inches, with locally higher amouns of around 4 inches possible. * Heavy rainfall will cause excess runoff and localized flash flooding in the watch area. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to Flash Flooding. Flash Flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && Previously issued Flood Watch has now been replaced by this Flash Flood Watch. $$ JB Wright
Nearby
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.