Otto strengthened into the seventh hurricane of 2016 Atlantic hurricane season late Tuesday afternoon in the southwest Caribbean Sea, and is forecast to be an extremely rare late November hurricane landfall, posing a danger of flooding and mudslides in parts of Central America.
This makes Otto the latest hurricane formation on record in the Caribbean Sea, surpassing Hurricane Martha in 1969, according to the National Hurricane Center (NHC).
Hurricane Otto will landfall in either Nicaragua or Costa Rica on Thanksgiving Day.
Heavy rain, flooding and mudslides are the greatest concerns for Central America.
This could be a record latest-in-season hurricane landfall in Nicaragua.
Otto could be the first hurricane landfall in 174 years of records in Costa Rica.