Storm Goretti Weather Warnings

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By Jessica Morin, Provincial Affairs EditorReviewed by Andrew LeblancForecast data: Open-Meteo & Environment and Climate Change Canada

Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Toronto Post Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.

Environment Canada has issued red-level winter storm warnings for southern Ontario and Quebec, with 30–50 cm of snow and wind gusts of 80–100 km/h expected through Thursday. Storm Goretti is a classic Alberta clipper that will intensify over the Great Lakes, bringing blizzard conditions to widespread areas east of Lake Huron.

Which regions are under Storm Goretti warnings?

Red warnings cover most of southern Ontario including the Greater Toronto Area, as well as southern Quebec from Montreal to Quebec City. Snowsquall watches are in effect for the Niagara region and eastern Ontario. Atlantic Canada faces a mix of rain and freezing rain on Thursday as the storm tracks northeast.

What conditions should residents prepare for?

Peak snowfall rates of 3–5 cm per hour are expected Wednesday evening through Thursday morning, with near-zero visibility in blowing snow. Wind chill values will drop to −25°C overnight. Power outages are possible due to heavy, wet snow accumulating on trees and utility lines.

Warning typeWinter storm (red), snowsquall watch

Total snowfall30–50 cm (highest east of Lake Huron)

Peak wind gusts80–100 km/h

TimingWednesday evening to Thursday afternoon

Should I travel during Storm Goretti?

Avoid all non-essential travel in warned areas. Road conditions will deteriorate rapidly Wednesday night. If you must drive, carry an emergency kit and check current warnings before leaving.

How long will the storm last?

Heavy snow and strong winds will continue through early Thursday afternoon in southern Ontario and Quebec, tapering to flurries by evening. Atlantic Canada will see mixed precipitation until Friday morning.

Will there be power outages?

Yes, the combination of wet heavy snow and gusts over 80 km/h increases the risk of localized outages. Ensure devices are charged and have flashlights and blankets ready.