UKMO North Atlantic and Tropical Storm forecast , 1 June 2017, predicts slightly enhanced activity when compared to long term averages. The first storm of the year, Arlene, happened in April.
2017 forecast is:
Tropical Storms (> 39mph wind): 13
Hurricanes (> 74 mph wind): 8
ACE index : 145
The Accumulated Cyclone Energy (ACE) index. A measure of the collective intensity and duration of all named tropical storms and hurricanes during the season.
The first storm of the year, Arlene, happened in April.