The first snow of December is forecast to start falling late Tuesday night into Wednesday morning as the next round of winter weather approaches the Mile High City and the city’s first winter weather advisory of the season goes into effect.

A winter weather advisory goes into effect at midnight for between 3-5 inches of snow possible around the city, and higher totals between 4-9 inches in the southern and western suburbs. The advisory is set to expire at 6 p.m., Wednesday.

Denverites can expect mostly cloudy skies today, with a high near 48, according to the National Weather Service in Boulder. South winds between 5 to 8 mph become calm.

Tonight expect snow, mainly after midnight and a low around 27. Light and variable wind becomes east southeast around 5 mph after midnight. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Snow picks up on Wednesday with the bulk of it falling throughout the day. Travel conditions in the morning will be affected as surfaces become slick and icy.

Gradual warming Thursday and Friday are forecast ahead of possible rain and snow during the weekend.

Here’s the 4-day forecast from the National Weather Service.

Wednesday: Snow. Temperature rising to near 30 by noon, then falling to around 25 during the remainder of the day. North northeast wind 5 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

Thursday: Sunny, with a high near 39. South southwest wind around 6 mph becoming calm in the afternoon.

Friday: Mostly sunny, with a high near 41.

Saturday: A slight chance of rain and snow showers. Mostly sunny, with a high near 47.