Master Sgt. Tabitha Booe, 601st Air Operations Center weather support team NCO in-charge, and Army Capt. Kevin Farrell, 601st AOC air defense operations task force archangel officer, monitors the weather across the continental United States April 5, at the 601st AOC. The 601st Air Operations Center plans, directs, and assesses air and space operations for the North American Aerospace Defense Command and U.S. Northern Command.