A weather event is set to make a return after three years, and it could have a big impact on our summer. El Niño is believed to be on its way and the summer forecast in Canada will turn out differently depending on how it unfolds.

According to The Weather Network, an El Niño could be forming in the eastern Pacific Ocean and the chances of it taking hold by summer are looking “better than ever.”

If you don’t already know, El Niño is essentially a band of warmer temperature that develops in the Pacific Ocean close to the equator.

It is the opposite of La Niña, which has been affecting Canada’s weather for nearly three years until now, says The Weather Network.

Both El Niño and La Niña have different effects on our weather, and there is a good chance that we will feel the impact this summer.

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According to The Weather Network, it could have “wide-ranging effects on Canada’s dominant pattern in the months ahead.”

It all depends on how quickly El Niño takes hold. If it happens “fast and early” this summer, it will create cooler-than-normal conditions in the eastern half of Canada.

Yes, that could mean colder days for the entire summer in the east, and above-normal temperatures in the west.

However, if it holds off longer, an extended period of “neutral conditions” will take hold, creating hotter-than-average weather all across Canada.

So, if you’re hoping for a nice hot summer, this would be the ideal outcome

However, the U.S. Climate Prediction Center (CPC) says it is more than 50% likely that we will dive straight into El Niño by the summertime.

It looks like we will just have to wait and see what happens!