Officials refuse to explain launch warning where contrail filmed

U.S. warned people to avoid mystery missile zone

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Contrail was recorded in this image by KCBS-KCAL in California

But it was in late October that the NGA issued the maritime warning for the Eastern North Pacific off California about "intermittent missile firing operations." While the notice gave time frames and days of the week as well as areas for missile firings, there was no specified time limit as to when they would end.

"Intermittent missile firing operations 00001Z to 2359Z daily Monday thru Sunday in the Naval Air Warfare Center Sea Range," the warning said. "The majority of missile firings take place 1400Z to 2359Z and 0001Z to 0200Z daily Monday thru Friday."

The contrail sighting by the KCBS television crew occurred during these time periods