In an incident reported by NAV Canada to Transport Canada on Friday, WestJet pilots had reported they had flown by “a basketball-sized object at 13,000 feet” during a flight from Winnipeg to Calgary on Jan. 19.

The pilots, of flight WJA485, were flying just northwest of Canmore at the time and descending to land in Calgary when the incident occurred.

NAV Canada has classified the incident, under occurrence event information, as a “weather balloon, meteor, rocket, CIRVIS/UFO.” CIRVIS stands for Communications Instructions for Reporting Vital Intelligence Sightings.

The report says they were passing by a basketball-sized object so it is implied it was standing still. They also didn’t describe it as a balloon. If it was a balloon, pilots would call it a balloon.

by Shiny-Tie-126

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    Rutkowski, who recently released the 2025 Canadian UFO Survey, said the incident joins a few hundred sightings already sent in this year to the UFO tracking organization. Last year, more than 1,000 sightings were reported from across the country.

    “We have a handful already reported by pilots,” he said.