A WINTER STORM WARNING IS IN EFFECT THROUGH MIDNIGHT MONDAY NIGHT
Sunday: High 29. Snow showers this afternoon to early evening and there will be some quick bursts of snow from heavy snow bands. Slippery travel and poor visibility is expected. Road conditions will especially turn bad where the heavy bands of snow set up.
This Evening: Mid-Upper 20s. Lighter snow mixes with or turns to sleet and freezing rain. While lighter, the freezing rain will make for icy and slick conditions on untreated surfaces. This will continue as a light icy mixture through Monday morning.
Monday Morning: Low 27. A light icy mixture. While the first wave of snow is long gone, freezing drizzle will make for some slick conditions on untreated surfaces. Icing accumulations around 0.1" expected and perhaps a bit higher 0.2" south where there will be much less snow.
Monday: High 33. Light icy mix will likely affect the AM commute. Mix changes back to snow Monday afternoon and continues through the afternoon drive. This 2nd wave of snow produces an additional 1-2" in the metro. Snow then finally tapers off late Monday night.
Snow Totals will vary greatly across the metro. In general expect higher totals along and north of I-70 where more of the heavy snow bands setup. Then expect less snow, but also ice accumulation south of St. Louis. The bulk of our snow totals are from Sunday afternoon-evening. Monday's snow looks to be an additional 1-2".