CatIQ Lifts Ontario-Quebec Storm Loss Estimate to C$439 Million as Claims Rise 17.5%
Updated
Updated · Artemis.bm · Aug 18
CatIQ Lifts Ontario-Quebec Storm Loss Estimate to C$439 Million as Claims Rise 17.5%
2 articles · Updated · Artemis.bm · Aug 18
Summary
C$439 million is CatIQ’s new insured-loss estimate for the June 30-July 3 thunderstorms in southern Ontario and Quebec, up from an initial C$374 million issued earlier this month.
Claims kept coming in after the event, pushing the estimate 17.5% higher, with most of the increase concentrated in commercial insurance lines.
The loss tally covers residential and commercial property damage, motor claims and related adjustment expenses from storms that brought flash flooding, 40 mm hail and at least two confirmed tornadoes.
Ottawa alone recorded nearly 120 mm of rain on July 1, underscoring CatIQ’s broader warning that flash flooding has become the main driver of insured losses in Canada’s storm-heavy summer.
CatIQ said 11 severe convective storm catastrophes have been declared in Canada since June, with cities including Edmonton and Ottawa already posting their wettest summers on record.
As summer 2026 shatters rainfall records, are current catastrophe models drastically underestimating the financial threat of Canadian convective storms?
With Canadian storm losses soaring in 2026, will commercial businesses face uninsurable risks as overland flood coverage becomes too costly?
Ottawa survived a 1-in-200-year flood this summer, but can aging urban infrastructure withstand the new normal of extreme rainfall?