By Shereen Siewert
UPDATE: A tornado warning is in effect for Wausau and Marathon County until 9:30 p.m. Wednesday.
Residents should take cover immediately and monitor rapidly changing conditions.
This is a developing story. See our earlier reporting below.
A severe thunderstorm warning is in effect Wednesday night for Wausau and Marathon County, according to the National Weather Service.
The warning was issued in advance of a line of strong storms moving into the area Wednesday and is in effect until 9:30 p.m.
At 7:36 p.m. a severe thunderstorm was spotted near Council Grounds State Park, about 20 miles northwest of Wausau, moving southeast at 55 mph. A second line of storms followed.
Expect wind damage to roofs, siding, trees and vehicles. Power outages are expected. Langlade and Lincoln Counties are also in the warning area.
Prepare immediately for large hail and damaging winds. People outside should move immediately to shelter inside a strong building. Stay away from windows. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.