Storm Arthur tracker shows worst life-threatening floods as new storm looms
The remnants of short-lived Tropical Storm Arthur continue to pose a risk for parts of the Southeast, according to meteorologists, who warn of heavy rain and life-threatening floods.
While the system briefly strengthened on Wednesday to become the first named storm of the 2026 Atlantic hurricane season, the National Hurricane Center (NHC) downgraded it to post-tropical cyclone status by Wednesday night. Its remnants now have a “low” chance of tropical or subtropical development, according to the agency.
AccuWeather reported that the system has brought several inches of rain to parts of the Gulf Coast in a short time, increasing the threat of life-threatening flooding. In the most severely affected locations, rainfall has exceeded a foot, and the potential for heavy rain and flash flooding will persist along the Gulf Coast on Friday, it added.
“Heavy rainfall will be fueled by tropical moisture, delivering rainfall rates of 2 to 4 inches per hour across portions of the Gulf Coast,” AccuWeather Meteorologist Alexander Duffus said in an email the outlet sent to Newsweek on Thursday.
AccuWeather said the greatest risk of flash flooding is expected from southern Mississippi and Alabama to the Florida Panhandle or western Georgia.
Why River Flooding May Linger
The outlet also said river flooding could be a concern as multiple rivers are forecast to hit moderate to major flood stages into next week.
“Many of the rivers across Alabama, southwestern Georgia and western portions of the Florida Panhandle are in the flatlands and flow slowly, so the flood cycle takes much longer to complete,” senior meteorologist Alex Sosnowski said. “Some rivers may not crest until next week.”
The System’s Low Chances of Development
In a Friday update, the NHC said showers and thunderstorms associated with Arthur’s remnants were located over the Southeastern U.S.
The system was expected to emerge out of the East Coast by Friday afternoon, it said, adding that “environmental conditions then appear to be marginally conducive for some tropical or subtropical development tonight or Saturday as the system moves at around 20 mph across the Western Atlantic Ocean.”
The agency said that, regardless of development, heavy rainfall capable of triggering widespread and life-threatening flash flooding is likely across parts of the Southeast U.S. over the next day or two.
It gave a 10 percent chance of development through both 48 hours and seven days.
As of early Friday, flood watches from the National Weather Service are still in place across parts of Louisiana, Mississippi, Alabama, Georgia and the Florida Panhandle.
Atlantic Hurricane Season 2026 Storm Names
It is unclear whether any new development would keep the name Arthur or be given a new name.
Below is the complete list of names for this season’s storms:
- Arthur
- Bertha
- Cristobal
- Dolly
- Edouard
- Fay
- Gonzalo
- Hanna
- Isaias
- Josephine
- Kyle
- Leah
- Marco
- Nana
- Omar
- Paulette
- Rene
- Sally
- Teddy
- Vicky
- Wilfred
The Atlantic hurricane season officially began at the start of the month, and it runs through November.
The NHC is expected to provide regular updates on any potential development of the system through its website.
