Weather 90 Percent ‘Go’ For Tuesday Launch

April 17, 2017 – Meteorologists with the U.S. Air Force 45th Weather Squadron are expecting very promising conditions for tomorrow’s planned launch of the Orbital ATK CRS-7 mission aboard a United Launch Alliance Atlas V rocket.

The forecast calls for temperatures of 75-76° F with on-shore winds peaking below 10 knots during the countdown. Forecasters predict a 90 percent chance of “go” conditions at the 9:11 a.m. MDT launch time, with the possibility of cumulus clouds posing the primary concern.

Launching on a United Launch Alliance Atlas V rocket, the uncrewed Cygnus spacecraft will carry more than 7,600 pounds of science research, crew supplies and hardware to the orbiting laboratory in support of the crew members.

Launch day coverage of the Cygnus launch begins at 8 a.m. MDT Tuesday on NASA TV and on NASA’s Launch Blog at