Meteorologists predict a 70 percent chance of favorable weather for the planned Dec. 19 launch of the fifth SpaceX cargo mission to the International Space Station. According to the U.S. Air Force’s 45th Weather Squadron, a system developing along the western Gulf Coast tomorrow will bring mid- and upper-level clouds over Florida’s Space Coast. These clouds could linger through Friday, making the possibility of thick clouds the primary concern. In the event of a 24-hour delay, the 70 percent “go” forecast is expected to remain the same for Saturday.