While forecast models still have plenty of time to change significantly, here’s a timeline of the freeze, based on the latest information.

As confidence in the forecast continues to grow, meteorologists say there could be heavy snowfall, particularly north of Interstate 10, with some areas potentially seeing up to five inches of snow, according to a National Weather Service update on Sunday.

As a significant winter storm approaches the Houston area, snow, sleet and ice are all becoming certainties as the temperatures decrease and conditions are forecasted to be more frosty than expected.

Cities along the Interstate 10 corridor only experience frozen precipitation a few times during a generation. The last measurable snowfall in Houston occurred on February 15, 2021.

A blast of cold air is expected to move into Houston on Sunday, and we could see snow and ice early next week. Here's our forecast.