Environment Canada has issued a rainfall warning for Toronto due to the potential for heavy rainfall stemming from the remnants of Hurricane Beryl.
On Tuesday afternoon, the weather agency said rainfall, with “embedded torrential downpours,” is expected to start overnight Tuesday or Wednesday morning and will last until Thursday.
Environment Canada said it predicts rainfall totals to be between 40 to 60 mm, with higher amounts possible in some areas. It said torrential downpours could give rainfall rates of 20 to 40 mm per hour at times.
There is some uncertainty in tracking this type of weather system, but in the past, these systems have “given very high rainfall rates and torrential downpours,” it said.
Some areas across the region could receive more than 60 mm of rain, the agency said, noting that heavy downpours can cause flash floods and water pooling on roads, along with localized flooding in low-lying areas.
Hurricane Beryl made landfall first in Jamaica, along with Grenada. It then went to Mexico as a Category 2 hurricane last week, before weakening as a tropical storm as it moved over to Texas, where it’s caused tornadoes and flooding.
Toronto also remains under a heat warning for Tuesday. Daytime highs are expected to be near 31 C with the humidex making it feel like 35 C to 38 C.
Environment Canada is warning of deteriorating air quality that could approach “high risk” due to the hot and humid air.