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Death Valley in the US is now warmer

2021-07-12T08:46:11.919Z


California's Death Valley is known to be a hot place, but it hit 130 degrees Fahrenheit (54.4 degrees Celsius) on Friday for the fifth time in recorded history - that's just five days out of more than 40,000 on record. | Climate | CNN


Over 54 degrees Celsius in some regions of the US 3:48

(CNN) -

California's Death Valley is known to be a hot place, but it hit 130 degrees Fahrenheit (54.4 degrees Celsius) on Friday for the fifth time in recorded history, that's just five days out of the more than 40,000 registered.

Interestingly, it could happen again on Sunday, and perhaps also this Monday.

The record for the number of consecutive days at 125 degrees (51.6) or more is 10, set in 1913 (June 28-July 5).

This year, Death Valley hit 126 (52.2) on July 7 and will likely continue that stretch of days with temperatures over 125 through Tuesday.

It would be eight days in a row, which would be the second longest streak in recorded history (tying eight days in 2013).

More than 30 million people in the western United States are under excessive heat alerts.

Heat alerts extend from northern Washington state to the Arizona-Mexico border.

Grand Junction, Colorado, set a new all-time temperature record of 107 degrees (41.6) on Friday.

Las Vegas tied its all-time temperature record of 117 (47.2) degrees on Saturday.

Fresno, California, could also approach its all-time temperature record of 115 (46.1) degrees on Sunday.

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But none compares to a staggering 130 (54.4) degrees in Death Valley, 13 degrees above normal.

"An abnormally strong high pressure system will stay overhead for several days," said Chelsea Peters, a meteorologist with the National Weather Service in Las Vegas.

"When the night's low is warmer than the previous day and similar temperature trends are expected, the day's high is likely to end up as hot or hotter as the day before."

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But despite how hot it can be at 130, it is not the highest temperature for Death Valley, which is 134 (56.6) degrees, set in 1913. It is also considered the official world record, but it is a bit controversial.

The controversy behind the record

The World Meteorological Organization (WMO) is the governing body that determines formal meteorological records around the world, as well as meteorological nomenclatures (such as naming tropical systems).

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Before 2013, the highest recorded temperature in the world was actually 136.4 Fahrenheit (58 degrees Celsius), established in 1923 in Al Azizia, Libya.

However, the WMO later determined that Libya's measurement was flawed and officially decertified it as the highest official global temperature of all time, giving that designation to the Death Valley temperature on July 10, 1913.

However, it is speculated that the 1913 Death Valley record may also be invalidated due to incorrect location of the instrumentation.

All official weather sensors used by the National Weather Service are strategically located to avoid interference from direct sunlight, wind, trees, or moisture.

Death Valley's record of 134 came amid an abnormally intense heat wave that lasted from July 7 to July 14, 1913. Maximum temperatures for that time period were 127 (52.7), 128 (53, 3), 129 (53.8), 134 (56.6), 129 (53.8), 130 (54.4), 131 (55), and 127 (52.7), respectively.

The WMO even has this on its website: "Some meteorological historians have questioned the accuracy of old temperature records. The WMO Archive for Extreme Weather and Climate Events is always ready to investigate any past extreme records when new ones are presented. credible evidence. "

Regardless of whether you agree to keep the 1913 data, it's hot there right now.

Not only during the day, but also at night.

And intense heat at both times of the day is critical to safety.

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Heat-related deaths spike in late summer

Low morning temperatures on both Sunday and Monday morning in Death Valley are expected to hit 103 (39.4) degrees, which is more than 10 degrees above normal.

The lowest record temperature that exists is 110 (43.3) degrees Fahrenheit.

This is a problem, because these temperatures do not allow the body to cool down successfully overnight.

The temperature must drop to at least 80 degrees (26.7 degrees C) to begin recovery.

In fact, a person can lose up to 2 liters of fluid overnight through sweat if the temperature does not drop below 85 (29.4) degrees.

"Your body needs to cool off at night and actually waits for you while you sleep," says Jenn Varian, a meteorologist with the Las Vegas National Weather Service bureau.

"When we have very hot temperatures at night, your body just can't cool down properly, which in and of itself can cause complications, but it will also make you less prepared for the heat of the day."

Low temperatures elsewhere are not much better.

On Sunday morning, it was forecast 93 (33.8) degrees in Las Vegas.

In Phoenix, temperatures likely won't drop below 91 (32.7).

Duration is also important, as is the time of year when the heat occurs.

"For example, a heat event in April with high temperatures of 107 degrees Fahrenheit (41.7 degrees Celsius) would likely warrant an excessive heat warning, while the same temperature in July is only a couple of degrees above normal. , so it is unlikely that we will broadcast anything, "said Varian.

The same thing happens at the end of the summer season, in August and September, although people may think that they will have acclimatized by then.

"Actually, forensic reports show that there are more heat-related deaths and illnesses in late summer than anywhere else, because your body is exhausted from fighting extreme heat all summer," Varian said.

CNN meteorologist Haley Brink contributed to this report.

Heat wave

Source: cnnespanol

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