'Highest temperature on Earth' as Death Valley, US hits 54.4C

[PeteC]

https://www.bbc.com/news/world-us-canada-53788018

What could be the highest temperature ever reliably recorded on Earth - 130F (54.4C) - may have been reached in Death Valley National Park, California.

The recording is being verified by the US National Weather Service.

It comes amid a heatwave on the US's west coast, where temperatures are forecast to rise further this week.

The scorching conditions have led to two days of blackouts in California, after a power plant malfunctioned on Saturday.

What were the previous records?
Sunday's reading was recorded in Furnace Creek in Death Valley.

Before this, the highest temperature reliably recorded on Earth was 129.2F (54C) - also in Death Valley in 2013.

A higher reading of 134F, or 56.6C a century earlier, also in Death Valley, is disputed. It is believed by some modern weather experts to have been erroneous, along with several other searing temperatures recorded that summer.

According to a 2016 analysis from weather historian Christopher Burt, other temperatures in the region recorded in 1913 do not corroborate the Death Valley reading.

Another record temperature for the planet - 131F, or 55C - was recorded in Tunisia in 1931, but Mr Burt said this reading, as well as others recorded in Africa during the colonial era, had "serious credibility issues".

What about the heatwave?
The current heatwave stretches from Arizona in the south-west, up the coast to Washington state in the north-west.

It is expected to hit its peak on Monday and Tuesday, before temperatures start to drop later in the week. However, the sweltering heat will continue for at least another 10 days.

As temperatures soared in California, a large "firenado" was observed on Saturday in Lassen County.

California's Independent System Operator (CISO), which manages the state's power, has declared a Stage 3 Emergency, meaning "when demand [for electricity] begins to outpace supply".

Because so much of the region's power relies on solar and wind energy, and because people use their electricity for air conditioning, during heatwaves the power grid becomes strained and is at risk of completely malfunctioning.

In order to manage the state's demand for power and prevent a complete shutdown, officials are using scheduled rolling blackouts to control and conserve energy.

What are the effects of extreme heat?
Officials define extreme heat as a period of two to three days of high heat and humidity, with temperatures above 90F (32C).

US public health body the Centers for Disease Control and Prevention (CDC) says heatwaves have killed more people on average than any other extreme weather event in the country.

The immediate effects of heatwaves on the human body are heat cramps, dehydration and even potentially fatal heat strokes.

However, extreme heat can also exacerbate pre-existing health conditions, including respiratory diseases, heart conditions and kidney disorders, the World Health Organization (WHO) says.

How to look after yourself in hot weather
It can affect infrastructure, too. As well as straining power grids and causing blackouts, extreme heat can ground planes, melt roads, and cause the inside of cars to overheat to dangerous levels.

Heatwaves can also have a severe impact on agriculture - either by causing vegetables to wilt and die, or by encouraging the spread of plant diseases.

[handdrummer]

The good news is that no one lives in Death Valley. It's a National Monument. The rest of the West Coast is another story. In Aug. there's usually a week to 10 days of extremely high heat and humidity in Los Angeles and surrounds, with the interior part of the state brutally hot. The rest of the year Southern Calif. is gorgeous, or was, when I last lived there.

[migrant]

I was in Las Vegas last month and it hit 120 f or 49 c, that was hot enough!

[dtaai-maai]

In 1998 I was on a fly/drive holiday starting in LA. We drove to Vegas first, and it was so hot I found myself desperate to spend as much time as possible in the air-conditioned comfort of the casinos...
We drove through Death Valley and stopped at a viewpoint - but not for very long!!
It was the first time I remember driving a car with a/c and boy did it come in handy...

[Dannie Boy]

I don’t know what it’s like in Death Valley but I’ve experienced 50c in the Saudi desert and it’s an intense dry heat - I now know what BBQ chicken must feel like!!

[pharvey]

I don’t know what it’s like in Death Valley but I’ve experienced 50c in the Saudi desert and it’s an intense dry heat - I now know what BBQ chicken must feel like!!

We had 48 degrees in Mauritania last year and working in full safety gear was a nightmare - even flooded my safety boots in sweat

Have visited both Death Valley and Vegas where temperatures were low to mid 40's..... hot enough!! I'm with DM in that the AC and casinos were a preference!!

[dtaai-maai]

^^Almost a very expensive preference... Long story, which I'll tell you when we eventually meet!

[handdrummer]

The good news is that no one lives in Death Valley. It's a National Monument. The rest of the West Coast is another story. In Aug. there's usually a week to 10 days of extremely high heat and humidity in Los Angeles and surrounds, with the interior part of the state brutally hot. The rest of the year Southern Calif. is gorgeous, or was, when I last lived there.

Mistake, you're intrepid reporter has made a mistake.
300-400 people live in Death Valley year round. About 150 of them work at 3 National Monument sites.