40 to 60 mm of rain could delay flights at Pearson Airport in Mississauga, Ontario

The 40 to 60 mm of rain expected today could delay flights at Pearson Airport in Mississauga.

Environment and Climate Change Canada warns of “torrential” rain brought by the remnants of Hurricane Beryl to southern Ontario today (July 10) with downpours that could last until Thursday.

Downpours could bring rainfall rates of 20 to 40 mm per hour at times.

“It’s a wet morning at the airport,” Pearson Airport said in a post on X today.

The heavy rainfall could impact flight schedules. Travellers can check the status of flights at the airport here.

“As always, with inclement weather comes the chance some flights could be affected,” the airport said.

The rainfall is managed in four stormwater facilities at the airport. Four underground tanks each hold about 10.5 million litres, while storm ponds above ground hold the rest.

Wondering how the airport manages all this rainwater?

Here’s a glimpse inside our Moores Creek Stormwater Facility – one of just four stormwater facilities on the property.

Holding a combined 84 million litres of water – about 33 Olympic-sized swimming pools – this facility… pic.twitter.com/P2lqKumvr5

— Toronto Pearson (@TorontoPearson) July 10, 2024