ST. LOUIS – A tornado warning issued Saturday in Madison County, Illinois has expired as of 4:45 p.m.

This was the only tornado warning or watch in the St. Louis metropolitan area as of 4 p.m. Saturday.

When a warning is issued, a tornado has been sighted or indicated by weather radar and there is imminent danger to life and property. In that case, seek shelter immediately.

If a tornado watch is issued, atmospheric conditions are favorable for a tornado to develop, but a tornado has not yet been sighted or indicated by weather radar.

Along with this threat, there were some severe thunderstorms, gusty winds and small hail chances earlier Saturday afternoon. There are still some flood risks as storms move east into Illinois.

The main storm system is heading toward the Metro East after rolling through parts of St. Charles County, St. Louis County and St. Louis City from 2-4 p.m. Some viewers tell FOX 2 they saw up to quarter-sized hail during that timeframe.

A severe thunderstorm watch is in effect for St. Louis through 7 p.m. Saturday. If it becomes a warning in your area, take shelter immediately.

Also, be aware of potential flooding risks in your area. The St. Louis Fire Department is helping with some flooding situations on Kingshighway and Natural Bridge that have left drivers and passenger stranded.

Temperatures will be warm and humid into the evening hours as well, a trend which looks like should stick for Sunday.