NOAA has determined that the Atlantic had a January subtropical storm:https://t.co/w6Keej8YUj

While storm will not be given an official name retroactively, when Arlene forms, it will be 2nd storm of the 2023 Atlantic #hurricane season. pic.twitter.com/fAzTZO6Xlc

— Philip Klotzbach (@philklotzbach) May 11, 2023