St. Louis prepares for a snowy weekend with a Winter Weather Advisory in effect, expecting 2-4 inches of snow.

Some St. Louis-area residents were treated to a rare and electrifying sight Saturday morning as a wintry weather phenomenon known as "thundersnow" lit up the skies.

ST. LOUIS — St. Louis' first taste of winter this season was definitely eventful, especially after numerous residents reported a rare weather phenomenon as snow fell.

St. Louis faces a Winter Weather Advisory with 2-4 inches of snow and winds up to 35 mph, potentially causing hazardous conditions until midnight CST.

A winter storm weather advisory has been issued for Saturday in St. Louis and areas north, with significant snowfall expected to impact the region.

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Houses and historic sites are opening their wreath-bedecked doors to visitors in the mood for some holiday spirit. One of the most storied homes in the neighborhood will be featured on this year’s tour — the beautifully restored Arzt House owned by Joy and …

The St. Louis region’s first fall snow is in the books. Snow fell steadily for much of Saturday morning, and some parts of the region saw more than a half a foot.