The Southwest portion of the United States has been so hot over the past few days that cities in multiple states have broken daily temperature records and gotten painfully close to breaking their all-time records.

San Diego County saw its hottest ever temperature on Tuesday.

https://twitter.com/sdutKrier/status/877327940769398785

It has been brutally hot in many areas thanks to what weather.com describes as a “large dome of high pressure” above the region.

“Beneath the dome, sinking air is causing temperatures to soar,” it says.

RELATED: 120-degree heat got 50 flights cancelled in Phoenix

A terrifying, blazing, bubble of heat slowly descending and roasting us from above? Cool.

Just how hot has it been during the heat wave that began Friday and continued angrily into Tuesday?

Check out all these cities that have broken records. Some cities, like Phoenix, broke their high temperature records two days in a row. And it could happen again this week.

Phoenix, Arizona

https://twitter.com/NWSPhoenix/status/877271760802021378?ref_src=twsrc%5Etfw&ref_url=http%3A%2F%2Fwww.azcentral.com%2Fstory%2Fnews%2Flocal%2Fphoenix-weather%2F2017%2F06%2F20%2Fphoenix-weather-heat-record%2F413888001%2F

Yuma, Arizona

https://twitter.com/NWSPhoenix/status/877305599565934593

Denver, Colorado

https://twitter.com/NWSBoulder/status/877300781057265668

Fresno, California

https://twitter.com/reubencontreras/status/876998120181080064

Reno, Nevada

https://twitter.com/NWSReno/status/877290992101097472

Palm Springs, California

https://twitter.com/NWSSanDiego/status/876946335932567552

Laramie, Wyoming

OK, 88 degrees isn’t much compared to 120, but we wanted to throw this one in to show that other parts of the U.S. are struggling too.

https://twitter.com/NWSCheyenne/status/877290624692740096

Sacramento, California

https://twitter.com/NWSSacramento/status/876579766807166976

Midland, Texas

https://twitter.com/NWSMidland/status/876224934564986880

Las Vegas, Nevada

https://twitter.com/NWSVegas/status/877302424750436353

Stockton, California

https://twitter.com/NWSSacramento/status/876254950371848192

Pueblo, Colorado

https://twitter.com/NWSPueblo/status/876182668253294592

Thermal, California

https://twitter.com/NWSSanDiego/status/877301512434835456

Corpus Christi, Texas

https://twitter.com/NWSCorpus/status/877277709453414400

Needles, California

https://twitter.com/breakingweather/status/876949150209855488

The National Weather Service (NWS) has heat warnings in effect in many cities and doesn’t plan to drop them until Friday, according to The San Francisco Chronicle.

Hang in there, friends around the southwest!

Here’s a list of heat safety tips from (NWS) to help you through the tough days ahead: Heat Safety Tips and Resources

Email: abby.hamblin@sduniontribune.com

Twitter: @abbyhamblin

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