Record setting heatwave to crush Las Vegas and Phoenix as it could cause major health issues with temperatures so hot people are being warned flights could be grounded
The forecast calls for a high of 118 on Monday and 120 on Tuesday in Phoenix
Heatwave will bake parts of Arizona, California and Nevada in the days ahead
Airlines are warning that the hot weather could cause flights to be grounded
Extreme heat creates changes in the air density that make it harder for airplanes to take off as pilots will have to use more thrust
Airlines respond to extreme temperatures by imposing weight restrictions, such as carrying less cargo and fuel
Some older planes or smaller jets were not built to withstand such high temps
The airlines work with aircraft manufacturers and air traffic controllers to make decision whether to delay or cancel flights in extreme heat
On June 26, 1990, an all-time record of 122 degrees was set in the city. On that day some airlines stopped taking off and landing for part of the day at Sky Harbor
By REGINA F. GRAHAM
DAILYMAIL.COM
19 June 2017
The record setting heatwave is expected to crush southwestern cities like Las Vegas and Phoenix as it could cause major health issues with temperatures so hot that people are being warned flights could be grounded.
American Airlines is warning passengers that it may have to ground flights in Phoenix as the temperature is expected to soar to 120 degrees.
The airline is letting Phoenix passengers scheduled to fly during the peak heat Monday through Wednesday to change their flights without a fee.
The forecast calls for a high of 118-degrees on Monday and 120-degrees on Tuesday in Phoenix.
The heat will have the biggest impact on smaller regional jets flying out of Phoenix. Extreme heat creates changes in the air density that make it harder for airplanes to take off.
Airlines respond by imposing weight restrictions, such as carrying less cargo and fuel.
American Airlines pilot Shane Coffey also said that the extreme heat causes some pilots to have to use more thrust or impose weight restrictions such as flying with less cargo.
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