Flights landing Saturday night at Denver International Airport unwittingly helped trigger the formation of ice crystals in a cloud layer just above the ground, producing a bit of snow — though it was mostly light and did not accumulate.

The flight caused a rare weather phenomenon as it approached Denver International Airport, resulting in brief snowfall detectable on radar.

Congratulations, passengers aboard United Flight 5528 into Denver on Saturday night, you made it snow. More precisely, your airplane did, as did other aircraft landing at Denver International Airport that evening,