Update, 9:25 p.m.: Montgomery and surrounding counties are under a Flash Flood Watch through Wednesday at noon.

There could be significant flash flooding overnight, according to the National Weather Service.

“We are expecting another round of storms to develop to our northwest over Kentucky and slowly track southeast through Middle Tennessee overnight,” the NWS said.

The impact could be seen from about 2 to 9 a.m. Wednesday, with substantial rainfall totals of 6-plus inches possible.

“Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks,” the alert said.

Update, 5:15 p.m.: The Severe Thunderstorm Watch for Montgomery and surrounding counties has been canceled.

Update, 3:15 p.m.: The National Weather Service reported severe thunderstorms along a line extending from 6 miles east of Guthrie to 6 miles west of Ashland City near McEwen.

The storm is moving southeast at 55 miles per hour with possible wind gusts of 70 miles per hour and penny size hail.

Update, 2:40 p.m.:  A Severe Thunderstorm Warning has been extended for Montgomery and other surrounding counties until 3:45 p.m.

At around 2:40 p.m., severe thunderstorms were located from Hopkinsville to 11 miles of Erin to Springfield, moving southeast at 50 miles per hour. The warning also reported wind gusts up to 70 miles per hour.

“Expect considerable tree damage,” the alert said. “Damage is likely to mobile homes, roofs and outbuildings.”

Previously:

CLARKSVILLE, TN (CLARKSVILLE NOW) – Montgomery and nearby counties are under a Severe Thunderstorm Warning until 2:45 p.m.

The warning was issued for Montgomery, northwestern Dickson, Stewart and Houston Counties by the National Weather Service.

NEWS ALERTS: To get free breaking news alerts on your phone, text the word NEWS to 43414.

At 1:50 p.m., severe thunderstorms were located along a line extending from 6 miles northwest of Eddyville to 8 miles west of Turkey Bay to near Lynnville, moving southeast at 50 mph with possible 60 mph wind gusts and nickel size hail.

“Expect damage to roofs, siding, and trees,” the alert said. “For your protection move to an interior room on the lowest floor of a building.”

ALERTS: For local severe weather alerts and updates, tune in to radio stations Beaver 100.3, Q108, Z97.5, Rewind 94.3 or NewZee 105.5.

The National Weather Service also issued a Severe Thunderstorm Watch, which is supposed to run until 8:00 p.m., and a Flood Watch, which will run until 4:00 p.m. on July 19.

It’s been reported that many areas will exceed 2 inches of rainfall, with some spots exceeding five inches causing significant flash flooding, according to the alert.