Space Shuttle Endeavour is currently scheduled to launch from Cape Canaveral, Fla., at 4:39 a.m. EST on Sunday morning. There should not be any weather-related difficulties at the time of the launch. Conditions will be mainly clear and chilly with a steady northwest breeze at 10 to 20 mph as the shuttle lifts off.

Endeavour's crew of seven will travel to the International Space Station carrying the Tranquility module and a seven-windowed cupola. Three spacewalks are scheduled for the 13-day mission.

Story by Meteorologist Katie Storbeck.