Extreme weather events are part of Canadian life. Here is what ‘extreme’ actually means and why the word matters for forecasts, business and planning.
El Niño
El Niño Forecast: UN Weather Body Says Event Will Peak in December and Last Into February 2027
The latest El Niño forecast from the UN weather body calls for a December peak, record ocean heat and near-certain conditions through February 2027.
The early Canada winter forecast points to one of the mildest seasons in years as a record El Niño peaks, though storms and Arctic bursts remain possible.
The Canada fall forecast points to a delayed winter as an exceptional El Niño favours mild spells, fewer storms and a slow start to the ski season.
The Weather Network’s El Niño fall outlook projects a milder, drier September to November across Canada and a late start to consistent winter weather.
Antarctic Sea Ice Collapses as Global Ocean Temperatures Hit Record Highs in August 2026
Antarctic sea ice reaches critical lows as global ocean temperatures hit record highs in August 2026. Scientists have identified eight mechanisms driving polar ice loss, from ocean heat transport to atmospheric river intrusions.