MetroLink officials are encouraging passengers to allow extra time for their commutes this week.
The twisters were reported in Callaway County, St. Charles County, and Pike County.
Every day, 33,000 cars take Hanley between I-64 and Pershing, which is being resurfaced.
United tries to find other flights for Chicago-bound passengers.
Travelers setting out for the holidays could face trouble, with anticipated Christmas Eve snow around the Great Lakes states and heavy rain expected along the East Coast.
More than two dozen St. Louis arrivals and departures had been cancelled by mid-morning.
Affects passengers through the weekend.
Low water means crews can’t use barges to move heavy sections of bridge deck.
In March, Rod Blagojevich began serving a 14-year-old sentence on 18 corruption convictions.
A fiber-optic cable was damaged and is affecting communications with the MetroLink system and trains.