A California low is moving across the southwest and will be pushing into the southern Rockies Wednesday into Thursday, bringing snow to the Rocky Mountain region.

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.

After a dry December, Denver is back on track for average snowfall totals thanks to a frigid and frosty January.

More sunny and seasonal conditions are in Denver's weather forecast Wednesday ahead of a storm that will move in from the south and kick up the chance for snow showers Wednesday night into Thursday.