Channel 3 Storm Alert Team monitors flood potential
CHATTANOOGA (WRCB) - The Channel 3 Storm Alert Team is monitoring a developing weather situation for Sunday.
The National Weather Service office in Morristown, Tennessee has issued a FLASH FLOOD WATCH from Noon EDT Sunday through Monday morning. A watch means conditions make flooding possible. A warning means flooding is happening or is imminent.
The flash flood watch applies to the following Tennessee counties in the Channel 3 viewing area: Bledsoe, Hamilton, Marion, Meigs, Rhea, and Sequatchie Counties.
Widespread rainfall amounts of 2-4 inches is expected. Hourly rainfall rates may exceed two inches which will result in a threat of dangerous flash flooding.
Various roadways and hiking trails will likely become impassable.
A flash flood watch means conditions may develop that lead to a flash flood warning. Flash flooding is a very dangerous situation. You should stay informed and be ready for quick action if flooding is observed. If you come to a closed or flooded road, remember the saying: "Turn around! Don't drown!"
The heavy rainfall is expected to begin Sunday afternoon and continue into Monday. This major spring weather system over the Tennessee Valley will move into the Southern Appalachians tonight. Strong thunderstorm will produce heavy rainfall as the system moves eastward. While rainfall will range from 2-4 inches, locally higher amounts are possible.
SIMILAR FLASH FLOOD WATCH FOR GEORGIA COUNTIES
The National Weather Service office in Atlanta has also issued a FLASH FLOOD WATCH in effect Sunday evening through late Monday night for much of North and parts of Central Georgia.
Counties under the watch include: Chattooga, Catoosa, Dade, Fannin, Gilmer, Murray, Union, Walker, Whitfield.
A slow-moving cold front from the Ohio Valley into the lower Mississippi Valley will move into Northwest Georgia Sunday evening and continue slowly south and east into Central Georgia during the day Monday. A strong moist southerly flow along and ahead of the front along with strong southwest winds aloft will likely cause storms to pass over the same areas multiple times resulting in heavy rain. Rainfall amounts of 2-3 inches are expected with isolated higher amounts around 4 inches possible. These amounts will likely cause minor flooding in some creeks and rivers with flash flooding on smaller creeks in the mountainous and urban areas of North Georgia.
Additionally, a RIVER FLOOD WARNING is in effect for South Chickamauga Creek in Chickamauga from Monday evening until Tuesday afternoon. The river is forecast to rise above flood stage around 6:00 p.m. Monday and crest near 18.5 feet around 2:00 a.m. Tuesday. The river should fall below flood stage late Tuesday morning. At 19 feet, water across Mack Smith Rd begins to impede traffic. West Chickamauga Creek overflows its banks near the Georgia state line and inundates several roads and properties in the area.
NE ALABAMA AND WESTERN NC COUNTIES ALSO UNDER WATCH
DeKalb and Jackson Counties in Alabama are also under a FLASH FLOOD WATCH for Sunday afternoon through Monday. The same precautionary advice applies to viewers in those counties as it does for Georgia and Tennessee Counties.
In North Carolina, Cherokee and Clay Counties are also under a FLOOD WATCH.