(KMOV.com) -- Flash flood warnings were issued for parts of the St. Louis area on Saturday, as slow-moving storms brought heavy rainfall and frequent lightning.
Illinois State Police responded to reports of a van stuck in six feet of water on northbound Interstate 55 near the I-64 split. Authorities said three elderly women were in the van, and a tow truck was used to free the vehicle from flood waters.
On southbound I-55, traffic was snarled for several miles after heavy rain flooded a section of the highway.
In East St. Louis, the downpour flooded an underpass at Riverpark Drive and Third Street. One man tried to drive through the high water, and his vehicle stalled.
Storms also knocked out power in some Metro-East communities. Authorities confirmed about 5,000 customers lost power in Cahokia, Ill. That number had fallen to about 1,600 by 6 p.m.
The heavy rain moved out of the St. Louis area on Saturday night, but pop-up storms were expected again on Sunday.
Here are a number of links to help you prepare and track the system:
Click here for the KMOV.com Storm Mode page with the latest weather condition updates.
Log on to our Facebook page and tell us what the weather is doing where you are.
During weather events, the News 4 Meteorologists are constantly updating our KMOVWeather Twitter feed. The very latest watches and warnings are automatically posted to this feed. You can view the feed below.
You can also stay aware of any weather threat with radar and forecast updates by downloading the KMOV mobile app!