Extreme heat hits southwestern US - KOAA.com | Continuous News | Colorado Springs and Pueblo

Extreme heat hits southwestern US

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The National Weather Service is warning those hiking or sightseeing in southern Utah's red rock deserts and parks this week that temperatures could reach dangerously high levels.
Forecasters issued an excessive heat warning for southern Utah's Zion National Park, Glen Canyon National Recreation Area and Lake Powell through Thursday night. Temperatures could reach 115 degrees in some areas.
The Weather Service also warns that temperatures will be very hot this week throughout southeastern Utah, including in Canyonlands National Park, Moab, Blanding, Kanab and Grand Staircase-Escalante National Monument.
Temperatures elsewhere around Utah are expected on Tuesday to tie or break record highs previously set for June 20.
1:30 p.m.
American Airlines has cancelled 38 flights in and out of Phoenix on Tuesday afternoon because of extreme heat.
The cancellations are for operations by smaller regional jets that have lower maximum operating temperatures than full-size airliners. Those jets can't operate when it's 118 degrees or above.
American warned passengers over the weekend that it may have to ground flights during a heat wave that could send the temperature soaring to near 120 degrees. Spokesman Ross Feinstein says the late afternoons are the peak affected times.
The airline is letting Phoenix passengers flying during the peak heat Monday through Wednesday to change flights without a fee. The forecast calls for a high of 119 Tuesday.
Extreme heat creates changes in air density that makes it harder for airplanes to take off.
11:35 a.m.
Surgeons at the major burn center serving Arizona are urging people to be aware of the danger of severe burns caused by excessive heat blanketing the southwestern United States.
Dr. Kevin Foster of the Arizona Burn Center in Phoenix issued the warning Monday.
He says second and third degree burns from hot asphalt and concrete, playground equipment, car and truck interiors and scalding water from outdoor hoses are common when temperatures exceed 100 degrees.
Temperatures in parts of Arizona, Nevada, and California are expected to top 115 degrees this week.
Foster says young children are particularly vulnerable because their skin is more sensitive.
The warning also applies to pets.
First aid for burns involves pouring cool water over the area for several minutes and seeking medical attention.
11:05 p.m.
Tourists hitting the Las Vegas Strip will feel the sizzle Monday as temperatures could top 114 degrees.
Meteorologist Ashley Allen with The National Weather Service in Las Vegas says the city's airport is forecast to hit 114 on Monday, but temperatures on the Strip could reach somewhere between 115 and 120 degrees.
Allen says the Las Vegas Strip's tall, close buildings and long stretches of concrete cause the area to heat quickly and cool slowly. She says it's hard to predict exactly how hot the Strip will get because the Weather Service does not get official readings there.
The Las Vegas-area is forecast on Tuesday to tie a record high of 117 degrees, last recorded in 2013.
An excessive heat warning is in effect as temperatures are expected to stay above 110 degrees into the weekend.
10:40 a.m.
The National Park Service is warning visitors to Arizona not to hike into the Grand Canyon because of excessive heat.
Temperatures below the rim of the canyon are expected to reach as high as 117 degrees this week. Temperatures on the rim are expected to be in the low to high 90s.
If hikers do decide to go ahead with their planned trips, the Park Service says they should take extra precautions to avoid being overcome by the excessive heat. That includes hiking only before 10 a.m. and after 4 p.m. to avoid strenuous exertion during the hottest part of the day. Drinking extra water and sports drinks will help prevent dehydration that can trigger a health crisis like a heat stroke.
7:15 a.m.
American Airlines is warning passengers that it may have to ground flights in Phoenix during a heat wave that could send the temperature soaring to 120 degrees.
The airline is letting Phoenix passengers flying during the peak heat Monday through Wednesday to change flights without a fee. The forecast calls for a high of 118 on Monday and 120 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. But in some cases, they will ground flights during the peak heat.

(Copyright 2017 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)

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