landfall in France. Tropical Depression Fifteen was small and well-organized as it crossed the tropical Atlantic before weakening as it moved through the northeast Caribbean and southwest North Atlantic during late September and early October. Tropical Storm Jose was a short-lived storm forming out in the open Atlantic in late October. Jose never affected land and dissipated on November 1 near the Azores. Hurricane Katrina formed in the Caribbean Sea, and made landfall in Cuba after reaching hurricane strength. The final storm of the season, Subtropical Storm Three, formed in the Atlantic Ocean on November 12 and moved north, making landfall in Nova Scotia and becoming extratropical soon after. The season's activity was reflected with an accumulated cyclone energy (ACE) rating of 100, which is classified as "near normal" by NOAA and is slightly higher than the 1951-2000 average of 93.2. ACE is a metric used to express the energy used by a tropical cyclone during its lifetime. Therefore, storms that last a long time, as well as particularly strong hurricanes, have high ACEs. It is only calculated for full advisories on tropical systems at or exceeding 39 mph (63 km/h), which is the threshold for tropical storm intensity. Systems Tropical Storm Arlene A tropical disturbance that originated in the Pacific Ocean crossed Central America and entered the Caribbean Sea in early May. The disturbance developed into a tropical depression over the northwestern Caribbean on May 6, well before the official start of the hurricane season. By the following day, the depression intensified into Tropical Storm Arlene. Around 00:00 UTC on May 8, Arlene reached its minimum barometric pressure of . Shortly thereafter, the cyclone made landfall on the south coast of Camagüey Province in Cuba with winds of 50 mph (85 km/h). Arlene weakened to a tropical depression while moving over Cuba. After emerging into the Atlantic Ocean over the Bahamas, the system re-intensified into a tropical storm late on May 8 and reached maximum sustained winds of 60 mph (95 km/h). However, convection soon diminished and Arlene weakened back to a tropical depression early on May 9, shortly before being absorbed by a trough. The storm caused only minimal impacts. Tropical Depression Two A tropical depression formed in the Bay of Campeche on June 3. Classified as Tropical Depression Two, the system moved north-northwest, lured by a closed upper-cyclone over the southern Great Plains. Shortly before 12:00 UTC