http://www.bbc.co.uk/news/world-us-canada-23107652
28 June 2013 Last updated at 20:06 GMT
Regan Morris “the danger is wildfires”
Western US states are baking under an extended heat wave, with temperatures threatening to break the all-time high recorded on Earth.
Phoenix, Arizona, could see the mercury hit 48C (118F) on Friday, officials said. Temperatures higher than 37C were expected as far north as Utah.
The heat wave is expected to last through the weekend.
Cities in the region are opening cooling centres and officials fear the heat could delay air travel.
Most large aircraft can operate in temperatures up to 52C, but temperatures as low as 47C could affect liftoff conditions.
A US Airways spokesman said the airline would be monitoring temperatures in Phoenix “very closely”.
The temperatures are about 10C higher than average for this time of year
The National Weather Service has issued a heat warning for several parts of the region, including Las Vegas, until Monday morning. Parts of five states including Colorado and Utah will see temperatures higher than 37C over the weekend.
“We’ll be at or above record levels in the Phoenix area and throughout a lot of the south-western United States,” meteorologist Mark O’Malley said.
Temperatures in Death Valley in the California desert are forecasted to reach 53C. The hottest air temperature ever recorded on Earth, 57C, was marked there almost 100 years ago on 10 July 1913.
Weather officials say the extreme weather is caused by a high pressure system stuck over the area. ….(read more).
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