Karl is getting stronger and better organized after sputtering for most of its days on the map. Upper level winds are allowing for development and it won’t be too long until Karl becomes a hurricane.
The official forecast keeps the center of Karl just to the south and east of Bermuda very late tonight or early tomorrow morning. It is likely that tropical storm conditions will be felt in Bermuda with isolated hurricane force wind gusts possible in the higher terrain of the island. Winds and seas will begin to subside quickly once Karl tracks farther away over the weekend.
Eventually there will be some increase in the swell activity along portions of the U.S. East Coast and the north-facing beaches of the Caribbean islands. Surfers can expect at least some beneficial wave action in the coming days so be sure to check your favorite surf report site for specific info.
Once Karl clears the pattern we will need to begin watching a tropical wave in the far eastern Atlantic that has potential to develop as it moves west towards the Windward Islands next week. In general, computer models are supportive of development and it is possible that we could see a tropical storm headed for the eastern Caribbean next week. The low latitude track suggests more favorable conditions and certainly very warm sea surface temperatures. Right now the NHC indicates a low chance of development over the next five days. I suspect we will see that begin to increase with time as the energy gathers and moves steadily west over the tropical Atlantic. There’s plenty of time to monitor the situation and see how things evolve. For now, interests in the Lesser Antilles should keep a close eye on this feature and be ready for possible impacts from it next week.
M. Sudduth 7:55 AM ET Sept 23