Flash flood watch issued for Williamson County, rain forecast to fall through Sunday

Flash flood watch issued for Williamson County, rain forecast to fall through Sunday


Williamson County residents are advised to take caution this week – and to not forget their umbrellas – as the National Weather Service has forecast heavy rain beginning Tuesday afternoon and continuing through Sunday.

Also issuing a Hydrologic Outlook advisory for Middle Tennessee, as well as a Flash Flood Watch for Williamson County, the National Weather Service expects flooding across the entire county.

“Right now, we are anticipating in Williamson County anywhere from one to three inches of rain, pretty much countywide, through Thursday morning,” said National Weather Service Meteorologist Brendan Schaper. “We expect that to begin sometime [Tuesday] toward the evening and continuing overnight into Wednesday.”

Schaper said residents will see a slight break in the constant downpour on Thursday, before heavy rains return again that same night.

“We do anticipate a little bit of a break; that would be Thursday, mid to late morning, before more rain returns late Thursday night, and then that will continue all the way through Sunday,” Schaper said. “Right now, we are above the February average rainfall for the month.”

With between five and nine inches of rain having already fallen this month in the Nashville area, this upcoming week will likely see the area beat it’s previous all-time record for rainfall, which currently sits at 10.91 inches from February of 2018, with the second highest rainfall record being from 1956, at 10.31 inches.

From Tuesday to Thursday, between two to four inches of rain are expected to fall, with an additional three to four inches expected to fall between Friday and Sunday. Combined, this could bring the month’s total rainfall in the Nashville area to 17 inches, with still four more days left in the month.

Residents are advised to brush up on where the likely flood zones are. The Federal Emergency Management Agency (FEMA) provides an interactive flood map to help identify potential flood zones that can be accessed by clicking here.

Schaper advises residents to never drive over moving or still water, as its depth can be much deeper than it appears. In fact, just six inches of water can cause vehicles to potentially lose control or stall, according to the Weather Channel, with 12 inches being enough to move vehicles in most cases.

“We say ‘turn around, don’t drown,’” Schaper said. “If roadways are flooded, the best thing to do is find an alternate route and not drive across any moving or standing water.”

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