All Weather News

How Typhoons Affect Our Weather

21 Oct 2017, 11:21 am

There has been a lot of talk about Super Typhoon Lan as it approaches a landfall in Japan.

By the time the massive storm makes landfall late Sunday local time, it’ll likely weaken to the equivalent of a category 1 or 2 hurricane.
This is according to the Japan Meteorological Agency.

But all of this talk of Typhoons made me think of my days in Southeast Asia, chasing these terrifying storms.
Once the storm passed I would watch as that energy travelled across the Pacific Ocean before unleashing on my friends on the west coast.

The Journey Across the Pacific

Now, before we dive into this I want to assure you that the atmospheric conditions of the Northern Pacific do wonders when it comes to weakening storms.
Usually remnant lows by northern Japan, these once-typhoons make the journey across the Pacific as a weak cluster of storms or small bit of energy.

They make this journey by travelling along the atmospheric highway! Okay, that’s not a real thing. But the jet stream often gets called the atmospheric highway since storms typically travel along it.

Here’s a little graphic to help explain.

U.S. Landfall

When these storms make landfall, they aren’t named and really don’t bring much more than rain and some gusty wind.

I left the Philippines after a powerful typhoon in 2014 and the energy of that storm just so happened to hit the U.S. about the same time I did.
Inches of rain fell across Portland, OR and powerful winds toppled old-growth trees around the city.

Most storms don’t hit with that force, but just last year we saw a storm hit the Northwest with tree-toppling winds, flooding rain, and even a  few coastal tornadoes.

Most storms aren’t former typhoons. So maybe pump the brakes ever-so slightly. However, in the coming week I want you to watch what happens in the Northwest as former-typhoon Lan makes the journey across the Pacific

For WeatherNation — Meteorologist Jeremy LaGoo

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