The countdown began at midnight CDT and the current plan is to launch between 7:15 and 7:30. Weather remains the big issue. There were four lightning strikes near the launch pad during the night, the closest .44 miles from the Ares I-X. There is a 60 percent chance the weather will not cooperate.
Nonetheless, the launch team moved the upper stage access platform and retracted the upper stage arm at about 4:30 a.m. At that point, weather was favorable for a launch.