Tropical Storm Arthur, the first named storm of the Atlantic hurricane season, moved across the Southeast on Thursday after making landfall along the upper Texas coast. The system weakened from a cyclone to a low pressure area as it lost wind intensity, with maximum sustained winds around 35 mph.
Despite its downgrade, forecasters warned that Arthur still posed life-threatening flooding risks across multiple states. The primary threat came from prolonged, heavy rainfall expected to continue through Friday. According to the National Hurricane Center, Arthur could produce 5 to 10 inches of rain across affected areas, with some isolated locations potentially receiving up to 20 inches.
"The main threat from Arthur is going to be a prolonged, multiday, heavy rainfall event that could produce dangerous to life-threatening flash flooding," said National Hurricane Center director Michael Brennan.
The highest flood risk was expected to shift eastward throughout the week, beginning in Texas and Louisiana before moving into Mississippi, Alabama, Georgia and the Florida panhandle. A High Risk for Excessive Rainfall was issued for portions of the Central Gulf Coast, a designation that indicates potential for both widespread and life-threatening flash flooding.
All coastal watches and warnings were discontinued on Wednesday, but flooding remained likely through Friday across Texas, Louisiana, Mississippi, Georgia and the Florida panhandle. Some communities in Louisiana and Mississippi took precautionary measures by distributing sandbags to residents and clearing debris from drainage systems ahead of the storm's arrival.
AccuWeather Vice President of Forecast Operations Dan DePodwin noted that "a significant flood risk exists each day this week, shifting slowly eastward from Texas into Wednesday to Louisiana, Mississippi, Alabama and Georgia during the second half of the week."
Beyond flooding concerns, forecasters warned of additional threats from the storm system. Swells generated by Arthur were expected to create life-threatening surf and rip-current conditions along the northwestern Gulf Coast over the coming days. Tornados remained possible through Thursday as the storm's remnants moved across Gulf Coast states.
The National Weather Service emphasized the dangers of flood waters, stating "NEVER walk or drive into flood waters. Turn around, don't drown!"
Arthur's early arrival marked an unusual start to the Atlantic hurricane season, which typically peaks in late summer and early fall. Emergency management officials across affected states continued monitoring conditions as the system tracked eastward across the Southeast. Residents in affected areas were advised to monitor local weather updates and avoid flooded roadways as cleanup and assessment efforts began in areas where the storm had already passed.