The latest launch attempt has 40% chance of unfavorable weather. A complication has also been added by the higher than normal waves off the Florida coast caused by Tropical Storm Danny. NASA has to recover the spent fuel canisters after liftoff and the unruly seas makes that task much more difficult.
Tropical Storm Danny remains very disorganized with wind sheer causing its slow development. The latest storms are firing up well east of the center of circulation as seen on the latest satellite images. Winds are up to 50mph with a turn to the Northeast anticipated sometime Saturday evening. A trough of low pressure will continue to steer Tropical Storm Danny Northeast. Due to continued wind sheer from the trough and its proximity to land, Danny may never become a hurricane. Danny will bring more rain and high surf to the eastern seaboard. NASA is set to launch the shuttle late Friday night but could see another weather delay. NASA has until Sunday to launch Discovery, otherwise the shuttle will have to get in line behind a Japanese cargo ship and a Russian spacecraft set to go to the space station in September. That would push the shuttle mission into mid-October.