Winter storm covers region in ice, snow is back for the afternoon

(KTVI) – A major winter storm rolled into the Bi-State area on schedule late Saturday night. It started as freezing drizzle late Saturday evening making for some slick spots on untreated secondary roads, subdivisions, sidewalks and parking lots. Freezing drizzle transitioned to sleet in the early morning hours of Sunday.

Precipitation will come in waves Sunday.  The first wave of sleet and snow will wind down my mid-morning.  A bit of a break is expected late morning into early afternoon before another wave ramps up.  This will be mostly snow for St. Louis and a mix of sleet and snow further south.

Check the latest radar image here:

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Snow fall total map:

Light Blue: This zone will be all snow with 4” to 6” expected.  These totals are down from yesterday as it looks like snow ends in this area earlier in the evening.

Darker Blue: Snow for metro St. Louis, the I-44 corridor and areas along and north of I-64 in IL.
The overnight freezing rain has transitioned to sleet and is beginning to mix with snow. Glaze icing has coated cars, trees, parking lots, and sidewalks. Power lines are also coated, but not enough for power outages. Precipitation will be a mix of sleet and snow by mid-morning. There still looks to be a break in the precip late morning and early afternoon, before the snow returns in the afternoon. Accumulations of sleet and snow combined will be 4” to 6″.

Pink Zone: From Salem, MO through Farmington, to near Rend Lake, IL. This is the northern edge of a nasty ice storm. Freezing drizzle began just after midnight. There have been some early morning thunderstorms bringing heavier sleet/freezing rain accumulations. Significant freezing rain and sleet accumulations of 0.2″ to 0.5″ are likely before a break late morning. Sleet and snow return Sunday afternoon with a steady snow Sunday night into the early hours of Monday. Snow totals are up for this region, 4” to  to as much as 7” of sleet and snow.

South of a line from Ellington to Carbondale, this could be a crippling ice storm with ice accumulations of 0.5” to almost 1.0” are possible along with accumulating snow and sleet.

This entire mess will be followed up by near record cold for the month of March with overnight lows near or just above zero by Monday night into Tuesday morning.