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US Southwest sizzles under heat dome in an ominous prelude to summertime

An enormous highpressure system understood as a heat dome that has actually stalled over the U.S. Southwest was pressing temperature levels in the area well above 100 degrees Fahrenheit (38 degrees Celsius) on Thursday, leaving millions of Americans to swelter in the coming days.

Some 31 million people from Northern California, south through Arizona and east into Texas, were under extreme heat warnings and heat advisories released by the National Weather Service through Saturday. The exact same region suffered under weeks of incredibly hot weather last summer season.

One of the hottest areas is most likely to be the Las Vegas strip, where the heat is anticipated to reach 112 F (44. C), which would mark a record for the Nevada city on June 6.

It's going to be a hot one out there today! the NWS in Las. Vegas said on X, advising people to drink fluids, use loose. fitting clothing and remain indoors if possible.

In Death Valley, California - which includes the lowest. point in the nation and is believed to be one of the hottest. places on Earth - the temperature might reach 121 F by the. afternoon, an ominous indication before the main start of the. summer.

Matthew Lamar, a park ranger at Death Valley National Park,. keeps cool by pouring cold bottles of water over his head.

It feels great but does not last long. It vaporizes. quickly, he said, keeping in mind that traveler traffic has actually slowed. substantially as the temperature rises. In Phoenix, the heat was to reach 114 F, forcing. authorities to open cooling centers at libraries and to close some. popular treking tracks during the day.

The hot temperature levels continue and a few records may even be. broken over the next couple of days, the NWS in Phoenix said in. a post on social media platform X.

A heat dome, the cause of today's conditions, is a ridge. of high-pressure air in the upper atmosphere that stalls and. traps hot air while keeping cooler air away even in the evening.

Phoenix was one of several cities in the area that. experienced their hottest summertimes on record in 2023. Arizona's. capital city endured the high temperatures surpassing 110 F for. 55 straight days, a record. Last summertime, 645 people died in the. Phoenix area due to heat-related diseases.

In action, city firemens this summertime will begin using. ice immersion to look after heat stroke victims. The method. require rescue workers to pack clients in ice on their way. to quickly reduce their body temperature level, fire officials said. during a demonstration for local media.

Forecasters say it was challenging to connect the record-breaking. heat experienced by the U.S. Southwest in the last few years to. human-induced environment modification, however such extremes are ending up being. more regular since of international warming.