National Weather Service (NWS)
Nashville, TN – The National Weather Service has issued a Flash Flood Watch for Clarksville-Montgomery County, Western Dickson County, Stewart County, Houston County, and Humphreys County that is in effect through early Thursday morning.
At 3:33am CST, Wednesday, February 20th, doppler radar indicated heavy rain and thunderstorms moving across northwest Middle Tennessee. Radar estimates up to 1.5 inches of rain has fallen in this area since yesterday. The additional heavy rainfall this morning will cause minor flooding of roads and low lying areas across the advisory area.
Some locations that will experience flooding include: Clarksville, Waverly, Camden, Dover, Erin, New Johnsonville, McEwen, Tennessee Ridge, Hurricane Mills, Big Rock, Vanleer, Cumberland City, Slayden, Palmyra, I-40 Near The Tennessee River, Woodlawn, Land Between The Lakes, Houston County Airport, Indian Mound and Cunningham.
This includes the following highways: Interstate 40 between mile markers 136 and 147. Interstate 24 between mile markers 1 and 17.
River levels along the Cumberland remain high with most locations above or near Action Stage. With the excessive rainfall in the forecast this week, there is the possibility that some locations may approach Minor Flood Stage later this week and into the weekend. Those with interests along the Cumberland River and its adjacent tributaries are advised to monitor forecasts throughout the week for updates on rainfall and river levels.
The Flood Advisory continues for the Cumberland River At Clarksville until further notice. At 9:00pm Tuesday, February 19th the stage was 40.4 feet. Flood stage is 46.0 feet.
The river will rise to near 46.6 feet Thursday morning. At 46.0 feet, Flood waters begin to impact areas along the river, including agricultural and commercial properties, Riverfront Park, and adjacent tributaries including Bartons Creek, Red River, West Fork Red River, and Yellow Creek. Affected locations include South Riverside Drive near Highway 48, North Riverside Drive near Providence Boulevard East, Quarry Road, Kraft Street near College Street, and Zinc Plant Road. Water approaches properties near Salem Road and Seven Mile Ferry Road.
At 45.0 feet, water approaches commercial and industrial properties on South Riverside Drive near Highway 48, North Riverside Drive near Providence Boulevard East, Quarry Road, Kraft Street near College Street, and Zinc Plant Road. Water also continues to inundate agricultural areas and parks along the river, and adjacent tributaries including Bartons Creek, Red River, West Fork Red River, and Yellow Creek.
At 43.0 feet, water continues to inundate low lying areas along the river, including agricultural areas, access points, portions of Riverfront Park on North Riverside Drive, and low lying areas of industrial property on Zinc Plant Road. Water also backs up adjacent tributaries, including Bartons Creek, Red River, West Fork Red River, and Yellow Creek.
1.5 to 3 inches of rainfall are expected across the watch area. Street flooding will be a hazard for travelers. Low-lying and poor drainage areas will be at risk for flash flooding, as well as creeks and streams.
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.
Wednesday through Monday
Rain and the flooding threat will continue Wednesday and Thursday.
Several more rounds of heavy rain are expected from Friday through Sunday. Additional rainfall totals of 2 to 4 inches will be possible across Middle Tennessee. These totals, combined with the recent rainfall and already saturated ground, could lead to significant flooding across the area.
Some strong to potentially severe thunderstorms may affect parts of Middle Tennessee on Saturday or Saturday night. However, details such as timing and possible impacts remain uncertain this far out in time.
A Flash Flood Watch in effect for the following Counties
Stewart County, Montgomery County, Robertson County, Sumner County, Macon County, Clay County, Pickett County, Houston County, Humphreys County, Dickson County, Cheatham County, Davidson County, Wilson County, Trousdale County, Smith County, Jackson County, Putnam County, Overton County, Fentress County, Perry County, Hickman County, Lewis County, Williamson County, Maury County, Marshall County, Rutherford County, Cannon County, De Kalb County, White County, Cumberland County, Bedford County, Coffee County, Warren County, Grundy County, Van Buren County, Wayne County, Lawrence County, and Giles County.