 Weather in California had excellent forecasts, so if the attempts on Sunday to land in Florida were not successful, the shuttle would be able to land at Edwards Air Force Base without weather being an issue.The "Atlantis" crew had two Florida return opportunities for the day, as well as two for a California landing, giving the managers time to evaluate the weather and use California if necessary.After choosing to pass on the first opportunity for KSC and evaluate the second, managers on the ground decided that the weather in Florida was too dynamic to risk bringing the orbiter in, and opted to land at Edwards Air Force Base instead.