From AccuWeather Public Relations

Flooding rainfall and gusty winds from Gabrielle may reach parts of Portugal and western Spain late this weekend > Wind and rain from former Atlantic hurricanes typically bring impacts to Europe only one to three times per year 

Two tropical waves in the Atlantic are being monitored closely for potential development this week 

AccuWeather® Global Weather Center – Sept. 23, 2025 – AccuWeather®hurricane experts say major Hurricane Gabrielle is expected to slowly lose wind intensity as it moves eastward toward the Azores later this week and eventually Europe this weekend. 

“Gabrielle is the second storm to intensify into a major hurricane this season. The rough surf and rip currents churned up by Gabrielle in the open Atlantic are reaching some beaches along the U.S. East Coast. Beach hazards could linger through the middle of the week,” AccuWeather® Lead Hurricane Expert Alex DaSilva said. “The storm will bring some rain and wind to Europe late this weekend into early next week. Heavy rainfall may trigger flooding in parts of Portugal, western Spain, and southwest France. Gabrielle will no longer be a hurricane, but the storm may still produce gusty winds that could cause some power outages and wind damage in parts of Portugal and far western Spain.”

Wind and rain from former Atlantic hurricanes typically impact Europe only one to three times per year. While these storms typically lose their tropical characteristics before reaching Europe, AccuWeather will continue to track these storms and refer to them as tropical rainstorms. 

Three tropical waves are being closely monitored as they move across the Atlantic this week. AccuWeather® hurricane experts say the westernmost wave has a medium chance of development late this week. The wave located just to the east has a high risk of tropical development over the next several days. The third wave is located just west of the Cabo Verde Islands. Development is not anticipated at this time with this wave. 

“The wave with a high risk of tropical development potential is expected to move into an area with atmospheric conditions that will support organization. This wave may develop into a depression or tropical storm later this week as it curves northward and moves toward Bermuda. People in Bermuda should pay close attention to forecast updates this week,” DaSilva said. 

“The wave with a medium risk of tropical development potential is moving westward through an area with some hostile atmospheric conditions that will limit organization over the next few days. The tropical wave is expected to slow down and start turning to the northwest toward the end of the week,” DaSilva explained. “This wave may reach an area with low disruptive wind shear and conditions that can support development in the southwestern Atlantic later this week. Downpours are likely to soak parts of Puerto Rico, the U.S. Virgin Islands, and the Greater Antilles. People in the Caribbean and along the southeast U.S. coast should closely monitor forecast updates this week.” 

•       The next two names on the list of 2025 Atlantic hurricanes are Humberto and Imelda. 
   
•       Additional tropical waves moving off Africa over the next several weeks will also have to be watched for possible development. 
   
•       AccuWeather® hurricane experts reduced the maximum number of named storms and hurricanes forecast to develop this year due to the unusual midseason lull.    
   
•       The AccuWeather® 2025 Atlantic Hurricane Season Forecast now predicts 13-16 named storms and six to nine hurricanes.   
   
•       It is important to note that the forecast for three to six direct impacts on the U.S. has not changed, despite a slight lowering of the total number of storms and hurricanes.

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