 At 07: 15, Nagumo ordered his reserve planes to be re-armed with contact-fused general purpose bombs for use against land targets. This was a result of the attacks from Midway, as well as of the morning flight leader's recommendation of a second strike. This had been under way for about 30 minutes when, at 07: 40, the delayed scout plane from Tone signaled that it had sighted a sizable American naval force to the east, but neglected to describe its composition. Later evidence suggests Nagumo did not receive the sighting report until 08: 00.
