The remnants of Hurricane Isaias continued to pose dangerous weather conditions across the Southeast and parts of the Eastern U.S. on Saturday, Oct. 10, with the potential for flash flooding, damaging winds and tornadoes even after the storm lost its tropical characteristics.
Isaias made landfall near Destin, Florida, on Friday evening as a Category 2 hurricane, bringing powerful wind gusts, coastal flooding and widespread power outages. More than 850,000 customers were without electricity in the storm’s aftermath.
Although the system has weakened, forecasters warned that its inland impacts could persist through Sunday, particularly in areas vulnerable to flooding and severe thunderstorms.
Where Isaias is moving now
Isaias is now classified as post tropical, meaning it no longer retains the characteristics of a tropical cyclone. However, the system continues to carry substantial moisture and strong winds as it moves inland.
A flash flood warning was in effect for part of Atlanta until 1:15 p.m. EDT Saturday, according to the report. Additional rainfall and thunderstorms were expected across portions of the Southeast, Tennessee and Ohio valleys, and the Mid-Atlantic.
The storm’s remnants were also expected to affect areas farther north, including Washington, D.C., Philadelphia and New York City, where localized flooding remained possible on Sunday.
Flash flooding remains a major concern
Heavy rain was expected to be one of Isaias most significant remaining threats, especially across the southern Appalachian foothills.
The greatest concern through Saturday night included eastern and northern Georgia, upstate South Carolina, western North Carolina and western Virginia. Steep terrain and already saturated ground can make these areas particularly vulnerable to rapid runoff and flash flooding.
Other areas facing potential flooding included the coastal Carolinas, parts of northern Florida and southern Georgia. Narrow bands of intense rainfall could develop across portions of the region, producing significant amounts of rain over short periods.
The threat was expected to shift toward the Tennessee and Ohio valleys on Saturday before extending into the Mid-Atlantic on Sunday.
Residents were urged to avoid flooded roads and low lying areas. Even shallow moving water can be dangerous, and drivers should never attempt to cross a roadway covered by floodwater.
Strong winds could cause more damage
Gusty winds were expected to continue across parts of the Southeast into early Sunday, with the strongest conditions possible in areas under high wind warnings.
Some gusts in the Smoky Mountains could reach 60 to 70 mph, according to the forecast. Winds of that strength can bring down trees, damage structures and cause additional power outages.
The danger may be greater where heavy rainfall has softened the ground, making trees more likely to fall. Residents in affected areas were advised to prepare for possible power disruptions, which could last for hours or extend into multiple days in locations hardest hit by the hurricane.
Tornadoes remain possible
Severe thunderstorms and isolated tornadoes were another concern as Isaias remnants moved across the region.
The threat on Saturday and Saturday evening included Georgia, the eastern Florida Panhandle and the Carolinas. The risk was expected to continue in parts of the East on Sunday, with isolated tornadoes and damaging thunderstorm wind gusts possible.
Tornadoes can develop around the remnants of tropical storms and hurricanes, meaning communities can face dangerous conditions even after a storm has weakened or moved away from the coast.
Residents should monitor local weather alerts and be ready to seek shelter if a tornado warning is issued. The safest option during a tornado warning is an interior room on the lowest floor of a sturdy building, away from windows.
Isaias made landfall with powerful winds
The storm reached the Florida Panhandle Friday evening near Destin with sustained winds of 105 mph, according to the report.
Several locations recorded severe wind gusts. A measurement of 116 mph was reported near Santa Rosa Sound, where sustained winds reached 91 mph. Pensacola recorded a gust of 102 mph, while nearby Gulf Breeze reported a gust of 97 mph and sustained winds of 83 mph.
The storm also produced significant coastal flooding. Water levels in Panama City rose more than 5.6 feet above normally dry ground, with potentially higher levels elsewhere along the western Florida Panhandle.
Damage reports included fallen trees, damaged roofs, collapsed gas station canopies and overturned recreational vehicles. In Alabama, trees fell onto homes in several communities, while debris and downed trees made roads impassable in parts of Conecuh County.
Heavy rainfall also caused flooding in parts of Florida, Alabama and Georgia. One location in Alabama recorded more than a foot of rain in 13 hours, while a Florida monitoring station measured more than 12 inches in 24 hours.
How residents can stay safe
People across the Southeast and East should continue to follow instructions from local officials and weather agencies as the storm’s remnants move through the region.
Residents should avoid flood prone areas, stay away from downed power lines and prepare for possible electricity outages. Those near the Gulf Coast should wait for local authorities to confirm that affected areas are safe before returning.
Even without hurricane status, Isaias remains capable of producing dangerous weather. Flooding, strong winds and isolated tornadoes could continue well inland through Sunday.
