Damage is being reported across Windsor-Essex and Chatham-Kent following severe thunderstorms.
70 km/h winds and 38 mm of rain fell during the storms Tuesday night which knocked down trees and powerlines and prompted a tornado warning.
Environment Canada will not be sending investigators to survey the damage, the majority of which is reported in Amherstburg and Tilbury.
Despite a brick sign on Sandwich Street in Amherstburg being toppled down, meteorologist Gerald Cheng says a wood sign nearby is still intact so he doubts a tornado actually touched down.
He says it's alarming that many people didn't take cover despite being told to.
"It's absolutely important that they take action immediately especially when it's dark because we can't see what's happening outside. So the first thing to do is go down to the basement and if there's no basement, go to a small interior room and put as many walls as possible between you and the outside as possible."
Cheng believes any damage being reported is likely due to strong winds, not a tornado.
"If people have reports of damage, we encourage them to upload them on Twitter using #ONstorm," he says.
In Windsor, city officiais say more than 210 residents called 311 to report flooded basements due to Tuesday's storm that dumped more than 80 millimetres of rain in some parts of Windsor-Essex and Chatham-Kent.
Tilbury District High School and Tilbury Area Public School were closed on Wednesday and they will remain closed to students and staff again on Thursday due to the cleanup from flooding.