Forecasters issue flash flood warning until 10:30 p.m. Saturday

The National Weather Service issued a flash flood warning on Saturday afternoon for parts of the metro-east, including northwestern St. Clair County and Madison County.

The warning is in effect until 10:30 p.m. Saturday.

Between 2 and 3 inches of rain had already fallen in the warned area as of 2:41 p.m. Saturday and an additional 3 to 5 inches of rain may fall in the area.

“Life-threatening” flash flooding could develop quickly Saturday night, according to a weather service bulletin.

The weather service pointed out the following Illinois highways that could cause problems:

▪  Interstate 70 between exits 21 and 24.

▪  Interstate 55 between exits 23 and 63.

▪  Interstate 64 near exit 9.

Meanwhile, a flash flood watch remains into effect until 6 p.m. Monday.

By Wednesday, there is a slight chance of snow. The New Year’s Eve and New Year’s Day weather will be dry but chilly, according to the National Weather Service.

This story was originally published December 26, 2015 at 8:37 AM with the headline "Forecasters issue flash flood warning until 10:30 p.m. Saturday."