The National Weather Service has released more details on the Wednesday tornadoes in Lake and McHenry counties and says the EF-1 tornado in Huntley was nearly seven miles long.
The National Weather Service (NWS) said a survey team was sent to Lake County and McHenry County on Thursday.
The team confirmed three tornadoes had touched down in the two counties.
The first one, rated EF-1, occurred in Huntley and had a maximum wind speed of 90 mph, the NWS said. It was 6.86 miles long.
It began at 6:06 p.m. Wednesday in a field off Route 20 near Getty Road along the McHenry-Kane county line.
The tornado tracked east-northeast and just south of Harmony Road, west of Huntley, snapping tree limbs and uprooting trees, the NWS said.
The tornado continued east, just south of Main Street, damaging a small outbuilding and downing additional tree limbs.
It shifted northeast into downtown Huntley while increasing to EF-1 intensity.
The tornado continued between Main Street and Douglas Avenue, causing substantial roof damage to two multi-family homes and uprooting additional trees, the NWS said.
It shifted a final time to the east-southeast passing the Huntley Police Department and causing more tree damage before lifting near Leland Lane and Central Park Boulevard on the east side of Huntley.
Huntley Fire Protection District Battalion Chief Michael Pierce told Lake and McHenry County Scanner that the roof of an apartment building had blown off in the 10700 block of Timer Drive West in Huntley.
Crews also found a second apartment building, located adjacent to the first, in the 11400 block of Douglas Avenue with damage.
The Douglas Avenue building had broken windows and also had its roof blown off, Pierce said.
Pierce said the residents of both buildings, which totaled approximately eight units, were displaced.
The fire department was also called to the StorSafe of Huntley North, 11200 Kiley Drive, after the storage building’s roof sustained damage.
A residence in the 11400 block of Russell Drive also sustained roof damage after a tree branch went through the roof, Pierce said.
The two other tornadoes, both rated EF-0, occurred in Barrington and Long Grove.
The Barrington tornado had estimated peak winds near 80 mph and a path length of 3.4 miles. It started along Spring Creek Road near Barrington Hills before continuing into southwestern Lake County.
The NWS said a farm outbuilding was damaged and had two walls detached.
The tornado snapped trees and tree limbs along Buckley Road and in the Chicago Highlands Subdivision off of Northwest Highway.
The tornado appeared to lift near West Sunset Road off Route 59 north of the Roslyn Road Elementary School in unincorporated Barrington.
The Long Grove tornado had estimated peak winds near 70 mph and a path length of 2.11 miles, according to the NWS.
It started near Country Lane off Old McHenry Road and snapped trees and tree limbs near Twin Orchard Country Club before continuing east-northeast towards Twin Groves Middle School.
The tornado appeared to lift over Woodland Park in Buffalo Grove near Twin Groves Middle School.
Officials say 13 confirmed tornadoes occurred in the northern Illinois area during the severe weather Wednesday evening.