He told the Washington Post: "I am recommending that the World Meteorological Organisation preliminary accept the observation".
The hottest temperature ever recorded on Earth may have been hit on Sunday after Death Valley in California sweltered in 54.4C (130F) heat. This temperature was measured at Furnace Creek near the visitors' center using a National Weather Service owned automated observation system.
But some extreme weather watchers believe it could end up being verified as the hottest ever reliably recorded on the planet if the historical figures are questioned.
Death Valley now holds the record for the hottest temperature ever recorded on Earth - a record set on July 10, 1913, of 134 degrees.
A 55C (131F) reading from Kebili in Tunisia from 7 July 1931 also has "serious credibility issues", according to the same study's author.
If verified, it would be the hottest August day ever recorded in the United States, and the third highest temperature ever recorded, after the 1913 and 1931 readings. From Europe to the USA, a large number of people endured uncomfortably high temperatures.
Even once on the list, it is up for review - as happened to the once-record 58.0C recorded in El Azizia in modern day Libya back in 1922 which was struck off the official records following a review conducted by the World Meteorological Organisation in 2010 to 2012.
More than 80 million people were under heat alerts Friday from the Central and Southern Plains as well as for almost the entire West Coast. Downtown Los Angeles hit 98 degrees, tying a record set in 1994.
By 10pm power had been restored statewide.
What were the previous records?
As temperatures soared in California, a large "firenado" was observed on Saturday in Lassen County.