It will again be very hot in the USA.

"A dangerous heat wave will affect much of the western United States, with likely record temperatures," warned the National Weather Service (NWS) on Sunday.

The thermometer rose over the weekend across much of the Pacific Rim as well as large areas inland west of the Rockies.

According to the National Weather Service (NWS), Las Vegas equaled its all-time high by reaching 47.2 degrees Celsius.

The city located in the middle of the Nevada desert had reached this level for the first time in 1942 and three times since 2005. On Sunday, the mercury should drop only slightly in the city, while it could peak at 52.2 degrees Celsius ( 126 degrees Fahrenheit) in Death Valley, California, known to be the hottest place in the United States.

Forecasters have issued a warning bulletin for the metropolitan area as well as several other urban centers including Phoenix (south) and San Jose, central Silicon Valley, not far from San Francisco.

30 million people affected

In all, "more than 30 million people" are affected by this heat alert "or warning," the NWS said on Saturday, adding that the particularly dangerous high temperatures and dry conditions are expected to continue on Sunday.

This new heat wave comes less than three weeks after the previous one, which hit the western United States and Canada in late June, causing heat records broken three days in a row in the Canadian province of British Columbia. .

The number of deaths caused by this first wave is not yet known but is estimated at several hundred.

This June was the hottest month on record in North America, according to data released by the European Union's climate monitoring service.

Storms, fires and heat waves

So far, human activity has caused global temperatures to rise by about 1.1 degrees Celsius, resulting in more destructive storms, more intense heat waves, droughts and increased forest fires.

According to the International Meteorological Organization (IMO) and the British Meteorological Service, the probability of the global temperature exceeding 1.5 degrees in the next five years is 40%.

The past six years are the hottest six years on record.

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  • World

  • United States

  • Weather forecast

  • Heat

  • Heat wave

  • Temperature

  • Las vegas

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