Lanark County, Ontario, has declared a significant weather event starting at 6:00 a.m. on Wednesday, March 11, 2026, as a major freezing rainstorm moves through the region. This declaration covers all local areas including Mississippi Mills, notifying the public that hazardous conditions will impact travel and road maintenance for the next day.
According to Lanark County, this official notice allows the municipality to suspend its usual timelines for clearing roads. Under provincial rules, the county can change its maintenance goals when extreme weather makes it impossible for crews to safely meet their normal service levels.
Forecasters from Environment Canada expect a long period of freezing rain that could bring between 10 and 20 mm of ice buildup. This heavy ice is likely to cause power outages and downed tree branches, which may create additional hazards for residents and road maintenance workers.
County officials are asking people to stay off the roads if possible to give maintenance and emergency vehicles enough space to work. The special weather status will remain in place until the county determines that the storm has passed and standard road clearing can resume.
