UPDATED 4:05 P.M. TUESDAY, AUG. 11:
Although many Kendall County residents lost electrical service after power lines were downed as a line of powerful thunderstorms with high winds swept through northern Illinois Monday afternoon, Aug. 10, the county and surrounding areas seemed to experience less damage compared to areas to the west.
Roger Bonuchi, emergency management coordinator for Kendall County, said Tuesday that the derecho line of thunderstorms, which generally produce strong straight-line winds, had a baseline of 80 to 100 mph gusts as the line started to cross from Iowa into Illinois. He said the storms started to die down by comparison by the time they got to Kendall County and winds were clocked at 65 or 75 mph then.
“We were spared compared to what Iowa had gotten and western Illinois," Bonuchi said. "This was a very strong derecho."
Emergency weather sirens were activated throughout the county at about 3 or 4 p.m. Monday as the storm approached the county, Bonuchi said. He said National Weather Service officials notified him there was some rotation detected within the county.
“That’s all I needed to know to tell KenCom to set the sirens off,” Bonuchi said.
However, Bonuchi said, there were no tornadoes reported to be sighted by residents. He said the National Weather Service was looking for evidence of any tornadoes within the county on Tuesday afternoon, but he doesn't believe there is any such evidence from what he has observed so far.
Bonuchi said he's unsure of what total monetary damage emergency officials are looking at county-wide. He said emergency officials start assigning dollar amounts once there are buildings destroyed, but there were no buildings destroyed as a result of Monday's storms.
Yorkville police officials wrote in an 11 a.m. Tuesday social media post that roughly 114 homes were still without power and East Main Street still appeared to be impacted by the storm with power outages.
"We encourage our residents to check on their elderly neighbors or those with special needs," Yorkville police wrote.
According to ComEd's outage map as of 1:45 p.m. Tuesday, more than 30 reported power outages still remain within Kendall County, affecting more than 235 customers. That comes after there were more than 60 reported outages affecting more than 6,800 as of 11:30 p.m. Monday within the county.
As of 10 a.m. Tuesday, there were 84 power outages and 1,595 customers affected within Kendall County, Bonuchi said. He said that makes up about 5% of ComEd's customer base in the area.
“Nothing near Will County,” which had 400,000 customers still without power at the same time, Bonuchi said.
ComEd crews have restored power for more than 478,000 customers throughout northern Illinois following the storms, according to a Tuesday morning social media post from the company. The company said it still could take days for power to be restored for all customers affected by the storm.
"Our current estimate is that all customers will be restored by 3 p.m. on Saturday, August 15," the social media post read.
The update comes after multiple downed power lines were reported in multiple locations Monday afternoon in Kendall County. The storm swept into the county shortly after 3:20 p.m. as the much of the county was under a tornado warning issued by the National Weather Service.
A tree was also reported knocked down on Hopkins Road south of Route 126 near Yorkville. The tree knocked down power lines, according to reports.
Bonuchi said there were some larger trees taken out by the strong winds at a farm at the top of a hill at Route 126 and Hopkins Road in Kendall Township. He said there were shingles ripped off of the roof there as well.
“So the winds were obviously pretty high there,” Bonuchi said.
Powers lines and tree limbs were reported down at Van Emmon Street and Route 47 in downtown Yorkville and along Hampton Road in the unincorporated Boulder Hill subdivision.
Wires were also reported dangling over the intersection at Route 126 and Route 71 In Yorkville.
• Record Newspapers Editor John Etheredge contributed to this story.