Lake County was hard hit by torrential rain that caused flash flooding throughout the area early on July 12, 2017. (Chicago Tribune)

Torrential rains pounded Lake County overnight Tuesday into the Wednesday morning commute, with flash flooding closing major roadways that included sections of Routes 41 and shutting down service on Metra’s Fox Lake-to-Chicago line.

Trained spotters with the National Weather Service reported flooding 8 to 10 inches deep at Lincoln and Division in Mundelein at 6 a.m. with "numerous houses flooded and people rescued by rafts."

Diane O’Brien, who lives just a block from the Mundelein police station near the corner of Division Street and Lincoln Avenue, said she had 8 feet of water in her basement at one point early Wednesday.

She was outside when the fire department had to use boats to rescue senior citizens from a nearby facility.

"I saw them evacuated," she said. "The water came in from outside because it had nowhere to go. We tried to keep people from trying to drive through."

She tried to reserve a pump at 3 a.m. from a local rental company, but when she arrived, they had rented them all out already.

"This is a record," said the 35 year resident. "I’ve never seen this much water and rain. … It just didn’t stop, it was amazing."

She added that she was thinking about going to a hotel, and her husband, who was out of town on business, was now trying to get back home.

"Everything is gone from the basement — the furnace, hot water heater, washer and dryer. It really stinks," she said.

At 7 a.m., Metra reported that movement of trains both inbound and outbound on the Milwaukee District North line was "suspended between Fox Lake and Libertyville with minimal shuttle service between Lake Forest to Chicago due to flooding caused by weather related conditions."

Gurnee officials issued an alert to residents around 8 a.m. stating that the village was "in an emergency flood response."

"As of 7:30 a.m. on July 12, 2017 the Des Plaines River was at level of 10.0 feet and rising," the alert stated. "Rainfall in the last 24 hours totals about 4.5 inches and the river rose over four feet over night."

The statement added that "sandbagging supplies are available to residents at the Public Works Facility, 1151 Kilbourne Road, should you need them. If you begin to have water come into your basement, please remember to take extreme caution for possible electric shock."

"The Village would like to urge anyone with flooded basements to contact the Village of Gurnee or ComEd to have the power disconnected prior to entering the basement."

More than 6.75 inches of rain was reported to have fallen at that point in Mundelein. Other rainfall totals included 7.1 inches in Round Lake Park, 5.38 inches in Lake Bluff, 5.3 inches in Lake Villa and 4.46 in Fox Lake.

The Lake County Division of Transportation reported that major road closures during the morning included Route 41 at Westleigh Road in Lake Forest; sections of Route 45 including at Peterson Road in Libertyville and at Gages Lake Road in Gages Lake; Route 120 at Hunt Club Road in Gurnee; and several sections of Route 137 including between Route 21 and St. Mary’s Road in Libertyville and Green Oaks.

Another wave of storms moved through around 7:30 a.m., with the National Weather Service issuing a severe thunderstorm warning and reporting 60 mph wind gusts and hail along with "torrential rains."

Waukegan city spokesman David Motley said local officials were asking motorists to stay off of roadways if possible after "all manner of cars" had stalled attempting to cross flooded areas.

Flooding is spread across the low-lying areas of Waukegan, in particular residential areas near water features like a retention pond, Motley added.

The rain started around midnight but didn’t get too bad until 1 a.m., Waukegan Public Works Director Mike Hewitt said. He added that multiple crews were brought in as the night moved into the morning and they started getting more calls, in particular around 4 to 5 a.m. and then moving into 6 a.m. when people started waking up.

"The rain just didn’t seem to stop," he said, adding that if the waves of rain continue, the flooding could get to the level of a "500-year storm."

Hewitt pointed to flooding he experienced about 20 years ago where the water undercut a road, lifting it away and destroying it. This storm isn’t there yet, he said, but if it keeps up, the city could experience that.

The city public works department was putting out barricades around 9 a.m. to block off flooded roads and cleaning inlets so that garbage doesn’t prevent the water from going into the stormwater system.

Motley warned against driving through flooded areas as vehicles can get stuck and letting kids play in the water, which is full of bacteria and garbage.

He added that when he was on his way to meet up with public works early Wednesday, he stumbled across a driver stuck on Golf Road at North Lewis Avenue.

"Unfortunately, in times like these when the roads are flooded, people attempt to make it through and they get it stuck," Motley said. "Now they’re an issue and they’re car has to be removed. They’re just creating additional hazards."

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