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Mount Everest is located in the normal elevation in which the jet stream is located so winds during much of year exceed 80 mph (128 km/hr.).


The world's highest peak, Mount Everest, is accesible only during brief windows of good weather. (Photo: Jupiterimages/Photos.com/Getty Images ).


Currently, Everest stands at 8,848 meters—and that figure is unlikely to change over the long run because erosion at the summit will compromise any growth.


Everest, Mount: full viewThe Mount Everest massif, Himalayas, Nepal.


deposition earthquake erosion fault landform landslide soil transport volcano weathering.


Old mountains are smaller because the forces that built them ended long ago and they have been worn down by millions of years of weathering and erosion.


The Appalachian Mountains offer an excellent example of weathering. Wind, rain, and erosion brought this towering mountain range down from 30,000 feet to just over 6,600 feet high. These mountains were once taller than Mount Everest, the Earth's tallest mountain in the Himalayas.


The weather and climate of Mount Everest is one of extremes. Temperatures at the summit are never above freezing and during January temperatures can drop as low as -60° C (-76° F). Despite the low temperatures the biggest issue faced by climbers are hurricane force winds and wind chill.


Weathering and erosion, transport and deposition would all effectively stop.