From The Weather Channel's website:
What Is A Heat Dome? Explaining The Deadly Weather Pattern Behind America's Most Dangerous Summer Days
These expansive areas of sinking air can push temperatures up to 30 degrees above average during the summer while increasing the threat of heat illnesses.
They're known by many names: Heat dome. Ridge of high pressure. Death ridge. Blocking high.
But do you really know what these are and why they can produce deadly weather?
These expansive bulges of warm air can stretch for 1,000 miles during the spring and summer months and provide sinking air over much of the country.
Descending air compresses and warms as it drops closer to the surface. Temperatures can often reach the century mark in the eastern two-thirds of the United States. In the West, these death ridges can push temperatures into the 110s and 120s in the desert.
Days-long heat waves are often the result.
This sinking, warm air also dries out the ground and the air above it. Thunderstorms have a tough time sprouting due to the suppressive motion of the air. Drought can begin or worsen under ridges of high pressure that last for longer than a week. The air directly under such a system can become still with little to no wind.
During the middle of the summer, this can become a vicious cycle of warming and drying.
These domes can strengthen and expand during this cycle until something comes along to push the high-pressure system elsewhere.
Heat is the No. 1 weather killer in the U.S., with hundreds of fatalities each year. Many of these fatalities occur under heat domes.
We've been warm up here, highs in the mid 90s (F) but that heat only lasts for a day or two. I do feel bad for you.
ReplyDeleteI thought this heat dome was extending all the way up to you...I'm glad for you that I was wrong!
DeleteOh, that last one, LOL! Hang in there!
ReplyDeleteYep! lol
DeleteThat last shot is a great idea. Bring the pets. Let’s get a table outside!
ReplyDeleteI love the Bundys!
DeleteYes, freezer side seating is a great idea.
ReplyDeleteThe coldest produce room at the grocery store us my favorite spot in town! Beautifully frigid!!
DeleteImagine the poor people who do not have air conditioning! Hope it cools off for you soon, Jennifer.
ReplyDeleteThere are cooling shelters set up in the city for people who need help. Heat like this can kill.
DeleteI hear you on the heat. We're having a blistering summer. But we're also having flooding rains. And massive humidity. But the plants are loving it.
ReplyDeleteWe need rain so badly!
DeleteEvery time I'm in a situation with temperatures like that, I think of my ancestors who settled in Florida back in the 1910s. I don't know how they did it.
ReplyDeleteSame! My grandparents grew up here with no a/c. I can't imagine how horrible that was!
DeleteBoy did you hit the nail on the head here. I live in Pittsburgh and it's just been non-stop 90° or higher with absolutely no breeze, no storms nothing. I live in an apartment building that doesn't have true AC, more of an air circulator that keeps the temperature in here no cooler than 78°. Not awful but not good either. I am worn out.
ReplyDelete78 can be awful if it's humid! We're keeping our a/c on 78 but that feels dry and cool when it's 100+ degrees outside. We go down to 76 at night to stave off humidity.
DeleteIt sounds dreadful. I can't imagine that anyone ever gets used to it.
ReplyDeleteI guess we're as used to it as we can be, but no one likes it!
DeleteWe're under an "extreme heat watch" here right now. Supposed to get up to 98. I keep using the word "brutal" to describe it. It's appropriate.
ReplyDeleteIt is brutal!
DeleteHellish sounds about right. Here in MA. we've hit 106 degrees twice and 103 twice this month. Most days are in the 90's with overnight in the low 70's. Add in the humidity around 70% and it just doesn't even feel safe to be outside.
ReplyDeleteLawns are burnt and gardens are withering from lack of rain. Oh and to top it off, we have the never ending white sky caused by the Canadian wildfires. No sign of that going away anytime soon. Yesterday it was hazy all day and we could smell the smoke. Not great to be breathing that stuff.
And from what I understand, lots of folks in the northeast don't have a/c. I'm sorry you're having this kind of weather, too.And the smoke would make it so much worse!
DeleteMe too - Northern Ohio, highs in the 90's, "feels like" in the 100's. If it wasn't for AC I would have melted!
ReplyDeleteYikes! Sorry it's so hot for you too!
DeleteA nice vacation on the planet Venus for some chilling sounds about right...
ReplyDeleteSeriously, I know why you all have A/C in your houses. We've only had one really hot week so far this summer, but it's not even August yet, so who knows what's going to come our way before autumn.
Good job you don't have a job that requires you to work outdoors, or in a place without A/C (I hope?).
Our school couldn't operate without a/c half the year. Thanks to our modified year round calendar, the students come back tomorrow. Imagine 650 kids between the ages of 5 and 11 unable to go outside for recess the first week of school! They're going to be stir crazy but with the excessive heat advisories, playing outside won't be safe.
DeleteThat sounds miserable especially for people who like to spend time outdoors. (like me) I'll try not to complain about 80s and 90s here although when we do get those temps, it's usually not humid. Most of us in the PNW love our summers. Hope the heat dome goes away so you can be more comfortable!
ReplyDeleteIt's like a weird cabin fever here in the summer where we're trapped indoors all the time. It's one of the things I hate most about the heat!
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