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Home » Outdoor Fun » Weather 101 » How Temperature & Humidity Affect High Pressure and Low Pressure

How Temperature & Humidity Affect High Pressure and Low Pressure

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It’s a high pressure job! Actually, it’s a low pressure job too.

Being a weatherman, I’m talking about.

Here are the differences between high pressure vs low pressure in the world of weather.

What Is High Pressure?
In reality, it’s the High Pressure days which are usually the sleepers. High Pressure is just a big mass of air covering thousands of square miles.

A “dome” of High Pressure, as we call it, is relatively uniform in temperature and humidity. The wind in the middle of High Pressure is barely blowing. So, when High Pressure moves in, it’s time for a nap!

When I visit schools to teach kids about the weather, I refer to the big “H” on the weather map as “Happy Weather!” The sun is out there, and the sun is always smiling. He (or she) is happy!

low-pressure-high-pressure-diagram.jpg

What Is Low Pressure?
Now Low Pressure, that’s different! Low Pressure weather days are the ones which create the most pressure in the weather office. We work a lot harder when Low Pressure moving in because Low Pressure is usually accompanied by some “Lousy Weather.”

Low Pressure is the boundary between two “domes” of High Pressure. Think of it as cleavage. Where the two domes collide, we get fireworks.

The bigger the difference in the two air masses (areas of high pressure) — the Lousier the weather is likely to be on the boundary (the area of Low Pressure).

So, when there’s high pressure outside, it’s a relaxing day inside, no pressure at all. When the pressure begins to drop outside, our headaches begin inside. Got it?

Weatherman Tim
Weatherman Tim

I'm a TV weatherman in south Texas. I get blamed for the bad weather, but I also get credit for the beautiful days. I absolutely love my job!

www.krgv.com/story/30586116/bio-tim-smith
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Filed Under: Outdoor Fun, Weather 101 Tagged With: Air Pressure, Humidity, temperature, weather maps, wind

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JoshuaI'm a weather geek from Florida who's been studying meteorology and watching weather patterns for years! I enjoy sharing little-known facts and fun stuff about the weather. I especially like sharing interesting details about weather events and conditions that can affect you... and how to prepare for Mother Nature's ever-changing weather patterns.

Joshua: View My Blog Posts

Weatherman TimI'm a TV weatherman in south Texas. I get blamed for the bad weather, but I also get credit for the beautiful days. I absolutely love my job!

Weatherman Tim: View My Blog Posts

LynnetteAs a homeowner, I primarily write about weather safety tips that everyone should know in order to protect their home and family during major weather events. I especially like to share seasonal "outside the box" ideas that most wouldn't think of in the Spring, Summer, Winter, and Fall. The weather events I've personally experienced include: Hurricanes (while living in Florida), Tornadoes (while living in Indiana, Texas, and Tennessee), Earthquakes (while visiting California), Blizzards (while living in New York and Indiana), and Flooding (while living in Tennessee).

Lynnette: View My Blog Posts

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