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St. Louis Weather:

ST. LOUIS —  A Winter Storm Warning is in effect for the St. Louis area until Thursday evening. A wintry mix of sleet and snow started Wednesday morning, then it is expected to change to all snow.

Snowfall totals so far range from 2″-3″ in St. Charles and northwest St. Louis County and as much as 8.0″ in Clarksville in Pike County Missouri. South of I-64 it’s been mostly sleet with some snow at times. South of the Meramac River it’s been freezing rain and some sleet.

We will continue to see pockets of sleet, freezing drizzle, and occasional bursts of snow through the day. But the steadier, heavier part of wave one is winding down.

All systems are still go for wave two, which looks very impressive, starting late this evening and lasting through at least midday Thursday. Areas that haven’t seen any snow will get it tonight.

Blizzard-like conditions, heavy snow, and poor visibility will make travel tomorrow morning very challenging if not impossible in some areas. The previously issued snowfall totals are still on target and no changes at this time.

How much snow is expected?

Even though there may be a brief lull in the snow late Wednesday, the snow chances will stay with us into and through Thursday.

With this kind of long-lasting event, snow totals will be extreme, possibly in the 9-12 inch range, for metro St. Louis and more than that north of the city. This is a dangerous storm for many reasons, so it’s best to be prepared for being snowed in for a day or more.

Icy conditions

Aside from sleet and snow, ice accumulations are also expected across the region, according to the National Weather Service. An icy mix could start overnight Tuesday.

Icy conditions will start northwest of St. Louis around 3 a.m. and push to the southeast throughout Wednesday. The icy mix will switch from freezing rain to sleet to snow.

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Missouri Gov. Mike Parson declared a state of emergency Tuesday afternoon ahead of the winter storm. Illinois Gov. JB Pritzker also activated the state’s national guard and issued a disaster declaration.