 Also late on Thursday, managers officially released "Endeavour" from its stand-by state, as "Atlantis" was cleared of any damage to its heat shield and was in good shape to return to Earth.As the crew worked through the procedures and checklists for entry on Friday, the managers on the ground closely examined the weather patterns around Florida, which were less than favorable.The crew was advised that there were low clouds and thunderstorms, both conditions that violated landing criteria, so managers waived the first opportunity.