It seems like, every time we turn around, we are learning a new weather-related term.  Back in 2017, it was "bomb cyclone".  A few years ago we were all talking about the "polar vortex".  Now, "heat dome" is on everyone's lips.

And, even though it has been something the southern and western states have been dealing with for a few weeks, we are going to get our own taste of the heat dome in the next few days.


What Is A Heat Dome?

According to KVUE Chief Meteorologist Hunter Williams, a heat dome is caused by a high pressure zone sitting above a given area.  Basically, the high pressure zone compresses the air in the area below, causing it to heat more than it would.

On top of that, the dome prevents updrafts.  That means that the pressure also prevents the hot air from rising.  Of course, when that hot air is allowed to rise, it cools off.

The pressure also prevents the formation of rain showers.

This video does a good job of explaining the process.

How Will The Heat Dome Affect Maine?

As the heat dome moves eastward, it will begin to affect the New England states.  Yes, even Maine will feel the affects of the dome.  However, according to WCVB, we will not be directly under the dome.  As a result, we won't feel the extreme temps that some states have had to deal with.

The National Weather Service is calling for us to have highs in the upper 80s on Wednesday and temperatures in the low 90s on Thursday and Friday.  Of course, depending on the humidity and other factors, the temperature may feel hotter.


Safety First

When it comes to going outside when it is super hot, use your best judgement.  Stay cool and stay hydrated.  And, keep an eye on our most vulnerable loved ones.

Real Or Fake Weather Terms

Here are some terms you hear describing extreme weather. Does the National Weather Service use them?

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