Know what’s causing the heat? A Japanese typhoon

Typhoon Neoguri is causing jet stream fluctuations

PORTLAND, Ore. (KOIN 6) — If you have air conditioning in your place, you may notice more of your friends wanting to visit or crash the night as we roll into next week.

Possible record temperatures return to the Portland metro area with highs reaching near the century mark. Not only will the heat be a factor, the humidity levels will also be increasing making it feel very uncomfortable outside.

So why all this heat? As the jet stream lifts well to the north a strong area of high pressure will dominate the western US allowing the heat to surge north into British Columbia. High pressure allows air to sink and when it does that it compresses and heats up.

It is just not the western US that will feel the dramatic weather changes.

The eastern U.S. will feel a significant cool-down. In fact some areas could be 20 degrees below average.

This satellite image taken on Tuesday July 8, 2014 at 12:40 a.m. EDT and released by the National Oceanic and Atmospheric Administration (NOAA) shows Typhoon Neoguri. One of the biggest storms to hit during Japan's summer, Neoguri was forecast to hit Kyushu island on July 10. Then it could travel across the main island of Honshu, which includes the major cities of Tokyo, Kyoto and Osaka. (AP Photo/NOAA)
This satellite image taken on Tuesday July 8, 2014 at 12:40 a.m. EDT and released by the National Oceanic and Atmospheric Administration (NOAA) shows Typhoon Neoguri. One of the biggest storms to hit during Japan’s summer, Neoguri was forecast to hit Kyushu island on July 10. Then it could travel across the main island of Honshu, which includes the major cities of Tokyo, Kyoto and Osaka. (AP Photo/NOAA)

Part of the blame for the change in the weather pattern can be targeted to the remnants of Typhoon Neoguri. Who would have thought that something that made landfall in Japan several days ago could have an effect halfway across the world?

In fact it does.

The typhoon was so strong that it actually altered the path of the jet stream. Remember, the jet stream is our highway of weather and it’s our steering mechanism for our weather.

The jet stream can flow in a zonal pattern (east to west) or a meridional flow (south to north or north to south, and can be responsible for extreme weather).

Neoguri will enable a ripple effect in the jet and will allow a strong ridge to build right over the Pacific Northwest.

Remember to always stay hydrated by drinking plenty of water. Slow down and take frequent breaks if you are outdoors and find plenty of shaded areas.  Wear lightweight and light-colored clothing to reflect the sunlight. And make sure to look after your pets and the elderly.

Here are more heat-related safety tips from the Red Cross.

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