National Weather Service warns of winter weather, slippery roads through Wednesday evening

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The National Weather Service posted this graphic to Twitter Feb. 10, 2021.

Snow and freezing drizzle is expected to fall in the St. Louis region through 6 p.m. Wednesday, the National Weather Service said as it issued a winter weather advisory.

Snow of up to 1 inch and a glaze of ice is forecasted in central and east central Missouri and southwest Illinois. Areas south of Interstate 70 are expected to receive less than one inch, with potentially one-tenth of an inch of ice.

The latest round of snow and wintry weather could cause slippery road conditions and affect the evening commute, the NWS St. Louis cautioned.

Both the Lindbergh and Mehlville school districts canceled school for the second day in a row Wednesday.

Ongoing light wintry precipitation will continue through Wednesday night and into Thursday. But even light accumulations of snow and ice can lead to hazardous road conditions.

It’s the fourth round of snow since the weekend for the St. Louis area, and extremely cold temperatures also make it more difficult for the Missouri Department of Transportation’s salt and chemicals to work on snow and ice, the agency said.

The winter weather advisory was issued for St. Louis County, St. Louis city, Jefferson County, St. Charles, Franklin, Lincoln, Callaway, Warren, Gasconade, Osage counties in Missouri, and St. Clair, Monroe, Madison, Bond, Clinton, Montgomery and Jersey counties in Illinois.