A rare pair on the same weather map
Two hurricanes are churning through the western Atlantic at the same time, and their close pass this week has pushed heavy surf, rip currents and coastal flooding toward beaches from Florida to the Carolinas.
Hurricane Humberto briefly reached Category 5 strength on Saturday, a rare mark in any season, before weakening back to Category 4. Tropical Storm Imelda formed near the northwestern Bahamas and was forecast to reach hurricane strength as it moved north off the southeastern United States.
At their closest, the two storms passed within roughly 750 km (465 miles) of each other — the second-closest approach by two Atlantic hurricanes on record.
Why the coast still matters
Neither storm is expected to come ashore on the US mainland. The danger comes from the water. Swells from both systems are arriving together, and forecasters warn of deadly rip currents, large breaking waves and beach erosion for the rest of the week.
Rip currents are one of the leading causes of weather-related deaths at the beach, and they are easy to misread: the calm-looking gap between waves is often the fastest-moving water. Lifeguard services along the Southeast coast have flagged high-risk days and asked swimmers to stay near a staffed stand.
Coastal counties from Florida through Georgia and the Carolinas are also watching for minor flooding at high tide, where onshore swell meets already elevated water levels.
What comes next
Imelda is expected to turn east into open water, which would end the overlap between the two systems. Forecasters say no short- or medium-term tropical threats to Florida or the continental United States are in the current outlook.
The pairing is unusual but not unheard of. Two hurricanes spinning near each other can briefly interact, nudging each other's tracks, but in this case both are being steered by the same larger weather pattern rather than by each other.
Emergency managers say the practical advice is unchanged: check local beach flag warnings before entering the water, keep children within arm's reach in the surf zone, and never swim alone near a rip current warning.