NHC says subtropical storm formed in January
So it turns out there has been a tropical system already in 2023 — in January, no less. But it’s not getting a name.
The National Hurricane Center on Thursday said in post-analysis it has determined that a subtropical storm formed in the Atlantic in mid-January off the coast of the Northeast U.S.
The hurricane center said the system is being considered the first cyclone of 2023 in the Atlantic. However, it isn’t being given a name, so the first named storm will still get the “A” name, which in 2023 is Arlene.
Forecasters said more details on the system will be released in a tropical cyclone report in the next couple of months.
A subtropical system has some of the same features as fully tropical systems — but not all of them.
The National Hurricane Center has been in the business of naming subtropical systems since 2002. A subtropical or tropical storm has to have sustained winds of at least 39 mph to get a name.
They are common in the Atlantic, especially during the early and later parts of the season.
The official start of the Atlantic hurricane season is right around the corner, by the way. The official start date is June 1, and the last day will be Nov. 30.
NOAA is expected to release its annual hurricane season outlook for the Atlantic later this month.
Read more about the January subtropical system here.