2017 Atlantic hurricane season (Bob - New Version)

The 2017 Atlantic hurricane season was another very active season, continuing the trend of activity from the year before. 17 named storms formed, 10 of which became hurricanes and 6 became major hurricanes. The strongest storm of the season was 150 mph Hurricane Lee, which was a powerful Cape Verde-type hurricane in late September. The above-average activity was attributed to a moderate La Nina event. However, the season was somewhat less destructive than its predecessor. Only one storm, Franklin, caused significant damage.

Hurricane Arlene
On May 5, the NHC began monitoring a non-tropical cyclone off the coast of Florida for possible subtropical or tropical cyclogenesis. The system rapidly developed over the coming days, being designated Subtropical Storm Arlene on May 8. The next day, Arlene became fully tropical, and took a curve out to sea. The system became a very rare May hurricane on May 10. Arlene would peak in intensity the next day, with 85 mph winds and a minimum pressure of 986 millibars. On May 13, Arlene became extratropical.

Tropical Storm Bret
On July 6, a tropical wave developed north of the Lesser Antilles and was designated Tropical Depression Two the next day. Due to low wind shear and warm waters, Two intensified into Tropical Storm Bret. However, moderate wind shear caused the system to only slightly intensify over the next several days. On July 10, Bret acquired its peak intensity with 50 mph winds and a minimum pressure of 1004 mbar. However, the next day Bret weakened to a tropical depression. Bret remained a tropical depression for several days before making an unusual landfall in Atlantic Canada as a weak tropical depression. Bret dissipated on July 15.