of the 5 hurricanes reached major hurricane status according to the Saffir–Simpson scale. However, because the early 20th century lacked modern forecasting and documentation, the official hurricane database may be incomplete. The Atlantic hurricane reanalysis project in 2008 uncovered evidence for a tropical cyclone not previously in the database, Tropical Storm Five. Additionally, Hurricane One had previously been classified as a tropical storm, though the project resulted in it being upgraded to hurricane status. The season proved to be devastating despite having only six systems reaching at least tropical storm intensity, with four out of the five hurricanes striking the United States. The Galveston hurricane was the strongest and first Category 4 hurricane to make landfall in the United States since the 1900 Galveston hurricane. Collectively, the tropical cyclones of the season caused at least 708 fatalities and more than $43.35 million in damage. The season's activity was reflected with an accumulated cyclone energy (ACE) rating of 130, the highest total since 1906 and far above the 1911–1920 average of 58.7. ACE is a metric used to express the energy used by a tropical cyclone during its lifetime. Therefore, a storm with a longer duration will have high values of ACE. It is only calculated at six-hour increments in which specific tropical and subtropical systems are either at or above sustained wind speeds of 39 mph (63 km/h), which is the threshold for tropical storm intensity. Thus, tropical depressions are not included here. Systems Hurricane One The first storm of the season developed quickly, beginning as a tropical storm early on July 31 about northeast of the Abaco Islands in the Bahamas. The storm reached hurricane intensity the following day as it approached Florida. At 18:00 UTC on August 1, the small hurricane made landfall near Titusville, Florida, at peak strength with winds of 75 mph (120 km/h) and a minimum atmospheric pressure of . It then weakened and curved towards the northeast, taking a track across the Appalachian Mountains as a tropical storm. Slight reintensification occurred as it approached the Mid-Atlantic states, perhaps aided by baroclinic influences. Late on August 4, the system became extratropical upon merging with a frontal boundary, and later dissipated the following day. Ahead of the hurricane's landfall, storm warnings were issued by the Weather Bureau from Jacksonville, Florida, to Fort Monroe, Virginia, and were later extended north to Boston, Massachusetts, once the storm began