Our watch, however, was recently upgraded to a La Nina advisory, meaning it's here now and expected to continue.

There's an approximately 85% chance this La Nina could continue right through the months of December, January and February.

I would say those are pretty good odds, wouldn't you?

So let's talk about what a la Nina is and how it impacts the world's weather.

Let's start in the Pacific Ocean.

This is where the action happens during a la Nina.

The trade winds, which blow from east to west, get a lot stronger.

This effects both the ocean and the atmosphere in the ocean.

Warm waters get pushed to the West Pacific due to the more intense wind, allowing cool water to bubble up to the surface of the east central Pacific.

In the air, the walker circulation gets stronger, which is the circulation of air rising over the warm waters and sinking back down over those cooler waters.

The jet stream is reshaped as a result, changing our weather patterns.

It's impacts are felt far and wide to not just in the U.

S.

But around the world is to blame.

This year form or hurricanes in the Atlantic, flooding in Australia, you name it.

You've probably heard of La Nina's brother to El Nino, which is the total opposite of a La Nina.

Their origins date back long ago as fishermen off the coast of South America would notice the change in ocean temperatures and the weather that would soon ensue.

Researchers today, however, used the Ocean Nino index, leveraging the latest science and technology to know exactly when these will form.