The mission was to be launched at 08:00 June 23 (all times local time zone), with strikes beginning at 09:30 at all targets. However weather reconnaissance aircraft reported unbroken clouds over the Yalu River, and Weyland postponed the attack at 07:40. As the morning passed, however, the weather system moved south, and Weyland immediately reversed himself and at 13:00 ordered the attacks to proceed, using the heavy clouds as concealment for the attackers en route to their targets, with a new attack time of 16:00.