The National Weather Service has issued a winter weather advisory for the St. Louis region.
The advisory is for snow, and is in effect from 6 p.m. Saturday through 6 p.m. Sunday.
Snow was predicted to develop Saturday evening, with accumulation of 2 to 3 inches.
On Sunday morning, snow is expected to taper off to flurries or light freezing rain. A glazing of ice is possible.
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Roads could rapidly become slippery.
The high for Saturday was expected to reach about 22 degrees, and the low in the evening will dip to about 18.
A high of about 30 was predicted for Sunday.