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Environment Canada is now confirming that two separate tornadoes touched down in the Windsor area earlier this week damaging 15 homes. No one was critically injured but it has left residents wondering why they weren’t warned about the tornado- which was the biggest to strike Ontario this year- until after it hit.

The first tornado struck the community of Lasalle at speeds up to 175 kilometres per hour. The second struck Windsor shortly after, with winds up to 200 kilometres per hour.

The biggest concern for residents is that they didn’t even know it was coming.

One video of the tornado was posted at 6:43 pm Wednesday evening. Another one was posted ten minutes later at 6:53.

Environment Canada didn’t issue it’s first official tornado warning until 7:28 pm, long after both tornadoes had done their damage.

“Right here in the Ontario Storm Prediction Centre is where they would have seen the tornadoes develop Wednesday evening.”

Geoff Coulson with Environment Canada says the speed at which the storm escalated made the tornadoes hard to predict.

“In the span of about 10 to 15 minutes, it went from this shower, to becoming something much more powerful capable of producing a tornado.”

He says a fast changing storm is tough to track when radar pictures come in at 10 minute intervals.

“By 7 o’clock we’re seeing the storm intensify, and by this next image at 7:10 we’ve already had the tornado occur in Lasalle.”

Environment Canada says they are now working to use social media to collect information from the ground.

“The radar can tell us what’s happening in the storm above the ground and again that storm could be rotating but not every rotating storm is actually producing a tornado.”

Seven twisters have been confirmed in Ontario so far this year. None of those were as large as the ones that hit the Windsor area.