Missil uppskjuten från USA's västkust?

One fact that raises additional questions is an official FAA notice to airmen (NOTAM), issued a few hours before the contrail was filmed by the traffic helicopter. It declares: “The following restrictions are required due to Naval Air Warfare Center Weapons Division activation of W537. In the interest of safety, all non-participating pilots are advised to avoid W537. IFR traffic under ATC jurisdiction should anticipate clearance around W537 …”

W537 is a large swath of the Pacific Ocean extending southwest from Los Angeles through Santa Catalina and others of the Channel Islands. The FAA notice was apparently created at 12:52 p.m. local time Monday (20:52 GMT/UTC), the day of the incident, but was not to take effect until a three-hour period the following day (2 p.m. through 5 p.m. on Tuesday, November 9).