Extreme Heat Cancels Flights

US Airways holds 18 Phoenix flights in record temperatures.

An extreme heatwave, with temperatures reaching triple digits in many large cities, hit the West Coast over the weekend. The heat was severe enough to be blamed for at least one death, and also caused flight disruptions. US Airways Express reportedly canceled 18 flights on Saturday as temperatures reached 119 degrees F in Phoenix, a new record for June 29.

High temperatures have a devastating effect on aircraft performance, causing longer takeoff runs and a reduction in climb rate. The limit for the grounded US Airways airplanes is 118 degrees, according to US Airways spokesman Todd Lehmacher. US Airways’ larger jets, which have a higher temperature limit, were still flying throughout the day.

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