Vector Unit has announced the date it is available on the Marketplace "Tempest Pack", the first expansion of the fast-paced racing game Hydro Thunder Hurricane water and how much it will cost to download on our storage media. The pack will be online 27 months of the current price of just 400 Microsoft Points and add two new vessels, and the Whiplash Psyclon, other leagues, and unusual locations like Atlantis, the Bermuda Triangle and the Castle Von Boom. See you in seven days to download.