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Ontario's Summer: Mostly Normal Amidst Super El Niño
25 Sep
Summary
- Waterloo region experienced a near-normal summer with some heatwaves.
- A Super El Niño event is likely, with significant global climate impacts.
- Ontario's weather linkage to El Niño is typically weak, but worth watching.
This past summer in Waterloo region was largely typical, marked by a few periods of extreme heat and heavy rainfall. "We ended this summer about half a degree above average," stated Frank Seglenieks from the University of Waterloo's weather station. Early July saw several days exceeding 34 C, contrasting with an August that avoided any days above 30 C. Rainfall was generally normal, apart from some days with 50-millimetre downpours and a significant storm in early September.
The emergence of a "Super El Niño," a warming of the Pacific Ocean with global weather implications, has been confirmed. Experts indicate a "significant probability" that this event could be the strongest on record. Forecasts suggest the El Niño will peak in December, with a 75% chance of it becoming a historic event.
While El Niño's most pronounced effects are often seen in Western Canada and South America, its influence on Ontario is typically less direct. However, meteorologists are closely monitoring potential impacts. Projections for the coming months suggest warmer autumn conditions for the region, with the El Niño's influence possibly trailing off by late winter. Comparing to past El Niño years like 1998 and 2014, Ontario experienced milder winters with reduced snowfall.
