The record was set in a hot sunny area

Via James FitzGerald, Rachel Looker, BBC news

Trump fans braved the fiery Arizona heat to attend the event

Extreme heat warnings will expire this weekend after daily temperature records were set across the U.S. Southwest.

Extreme temperatures are expected to continue in California, Nevada and Arizona through Saturday.

The extreme heat warning for Las Vegas will expire Saturday night with temperatures remaining around 115F (46.1) on Saturday and dropping to 112F (44.4C) on Sunday.

Similar to trends throughout last week, temperatures will remain high at night and hover around the low 80s.

On Thursday, temperatures reached 113F (45C) in Phoenix. Record-breaking temperatures sent 11 people to hospital while waiting to attend Donald Trump’s campaign rally on Wednesday.

Phoenix will see some relief after the heat warning expired Friday night, but high temperatures remained in the triple digits Saturday at 108F (42.2C) and 104F (40C) on Sunday .

The National Weather Service (NWS) warning remains in place Friday in wider areaincludes a population of about 20 million people.

According to the NWS Weather Prediction Center, the heat wave marks the first dangerous heat wave this season with the possibility of extreme heat extending into next week in some areas.

Scientists say extreme weather events are becoming more frequent and intense due to climate change.

Although the official start of summer is two weeks away, the NWS has advised people in affected areas to limit outdoor activities and stay hydrated.

The agency had previously warned that scorching overnight temperatures would not ease at all.

On Thursday, NWS thermometers showed new highs for June 6 in locations including Las Vegas and Death Valley. Second place reached 122F (50C).

The fire department in Clark County, home to Las Vegas, has responded to at least 12 calls since Wednesday related to heat exposure, the Associated Press reported. Nine of those callers needed hospital treatment.

Reporting a temperature of 113F (45C) at Sky Harbor, the NWS Phoenix office said the number exceeded the previous high on June 6 set in 2016.

Phoenix is ​​America’s hottest major city, and there were 645 heat-related deaths last year in greater Maricopa County.

Firefighters were deployed to drown the heatstroke victim in ice. Several popular local hiking trails have been closed.

Image explaining how a heat dome works. 1) A mass of warm air accumulates in dry, still summer conditions. 2) High pressure in the atmosphere pushes warm air down. 3) The air is compressed and becomes even hotter

AP news agency reported that the group of 11 people who attended Trump’s campaign were later discharged from the hospital.

The Southwest’s first heat wave of the year is the result of a heat dome: an area of ​​high pressure in which hot air is pushed down and trapped, causing widespread temperatures to rise.

Temperatures are about 20-30F above average for this time of year.

While heat domes were once described as rare, they are becoming more common and intense due to human-caused climate change, scientists say.

The European Union’s Copernicus Climate Change Facility announced Wednesday that the world has surpassed consecutive monthly temperature records for a year.

The climate change agency also found that May marked the 11th consecutive month in which average global temperatures were at least 1.5 degrees Celsius above the pre-industrial average of the late 1800s. , refers to the period before a significant increase in greenhouse gas emissions.

Scientists say high temperatures are due human-caused climate change combined with the El Niño climate phenomenon.

“We are living in unprecedented times,” Carlo Buontempo, director of Copernicus, said earlier this week.


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