Allison approximately $8.5 billion in damage (2001 USD),[27] making it the costliest tropical cyclone that was never a major hurricane on record in the Atlantic basin. The storm also killed 41 people directly, including 27 who drowned. This ties Allison with a tropical storm in 1917 as the second-deadliest tropical storm to affect the US; only surpassed by the 1925 Florida tropical storm which killed 73 people.[2]