What Launched from Whidbey Island, Washington, On Sunday, June 10, 2018?

“My good night cam picked up what appears to be a large missile launch on Whidbey Island on Sunday AM.” - Greg Johnson, Skunk Bay Weather

June 14, 2018  Albuquerque, New Mexico - At 3:56 AM Pacific on Sunday, June 10, 2018, the image below was snapped by a high-quality, 20-second exposure camera run by the Skunk Bay Weather Service in Whidbey Island, Washington. Greg Johnson works there and was reviewing the camera images from the previous hours when he came to this one — a bright orange glow around a blast of whitish-yellow light rising in the early morning darkness beneath what looks like a grey missile.