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Heavy rain leads to floods, power outages across Montreal area

Up to 150 millimetres of rain fell in parts of western Montreal and the South Shore in just a few hours Saturday, according to Environment Canada

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NEEDS REVIEW

As of June 21, 2026 at 6:54 PM, this is how Optics News reads the wording differences in this story.

What happened Up to 150 millimetres of rain fell in parts of western Montreal and the South Shore in just a few hours Saturday, according to Environment Canada.
The headline split The Globe and Mail frames it as "Heavy rain leads to floods, power outages across Montreal area". Global News (Canada) frames it as "More than 100mm of rain falls on Montreal: floods homes, causes outages".
Match confidence Developing. Only 2 sources are matched, and the source map is still narrow. Useful to watch, not enough to draw conclusions yet.
Same-event confidenceDeveloping

Not enough sources yet to confirm this is the same specific event.

Wording differs, but the match is too narrow to read confidently yet.

WHAT EACH SIDE EMPHASIZED

Left / center-leftNo matching source in this bucket yet.

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CenterHeavy rain leads to floods, power outages across Montreal area

The Globe and Mail · Center · News report

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SEE THE HEADLINES

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The Globe and MailNews report · Jun 21, 6:54 PM

Heavy rain leads to floods, power outages across Montreal area

heavyleadspoweracrossarea

Up to 150 millimetres of rain fell in parts of western Montreal and the South Shore in just a few hours Saturday, according to Environment Canada

Open source
CenterHigh
Global News (Canada)News report · Jun 21, 5:12 PM

More than 100mm of rain falls on Montreal: floods homes, causes outages

morethan100mmfallshomes

Parts of Montreal received more than 100 millimetres of rain in a short period Saturday, with some boroughs like Pierrefonds exceeding 150 mm in two hours.

Open source
DetailsScore hidden · 2 sources · 1 bias buckets
Score hidden until the match is cleanerLow confidence2 sources · 1 bias bucketsDeveloping · 2 sources · 1 bucketFormats: News report

SOURCE MAP CHANGES

Jun 21, 5:12 PM: Global News (Canada) joined the source map.

Jun 21, 6:54 PM: The Globe and Mail joined the source map.

Now: score hidden until the source match is cleaner. Story health is developing · 2 sources · 1 bucket.