Flight weather officers reported to flight controllers in Houston, TX that all three TAL sites would not be able to support an unlikely emergency landing. The TAL sites were marginal throughout the day, but managers were hopeful that the site at Ben Guerir, Morocco would improve by launch time. When the decision was made, crosswinds were above acceptable limits and low cloud ceilings were being monitored.

Space Shuttle ground controllers have begun an extended scrub turnaround at Launch Pad 39A, and mission managers are assessing the next available launch opportunity for STS-101. The flight crew will remain overnight at KSC and depart for Houston, TX tomorrow.