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Bright heavens, calm breezes and a breathtaking view of Himalayan summits draped in snow - this describes the fall setting that hikers on Mount Everest have grown to adore.

However that appears to be changing.

Changing Weather Patterns

Meteorologists indicate the rainy season now extends into autumn, which is traditionally the high-altitude travel period.

During this delayed tail end of monsoon, they have documented at least one occurrence of extreme rainfall nearly every year for the past ten years, with high-altitude weather becoming increasingly dangerous.

Latest Crisis on Everest

Last weekend, a unexpected snowstorm stranded hundreds of tourists near the east-facing side of Everest for multiple days in bitterly cold temperatures at an elevation of more than 16,000ft.

Almost six hundred trekkers were escorted to security by the end of that week, according to reports.

A single individual had succumbed from hypothermia and mountain sickness, but the remaining individuals were said to be in good health.

Comparable Incidents Across the Region

The emergency was on the Tibetan side but a comparable situation had occurred on the southern slope, where a Korean mountaineer lost his life on Mera Peak.

The world found out much later because communication lines were hit by torrential rains and heavy snowfall.

Officials calculate that mudslides and sudden floods in the country have claimed the lives of approximately sixty people over the previous seven days.

"It is very atypical for October during which we anticipate the skies to stay clear," stated Riten Jangbu Sherpa.

Economic Impact

Considering autumn represents the preferred season, frequent storms like this have "hampered our trekking and mountaineering business," he continued.

The monsoon season in northern India and Nepal typically continues from June to early autumn, but not anymore.

"Our data shows that the majority of the annual cycles in the previous decade have had monsoons lasting until the middle of autumn, which is certainly a change," said a high-ranking meteorology official.

Growing Climate Severity

Even more worrying is the heavy rain and snow the concluding phase of the period brings, like it did recently on 4 and 5 October.

High in the Himalayas, such severe conditions translates to blizzards and snowstorms, which represents a significant risk for hiking, climbing and the travel industry.

Personal Experiences

Exactly what happened recently when the weather changed quite abruptly - the air currents began roaring, temperatures plummeted and visibility dropped significantly.

The trail that had easily led the trekkers to what was expected to be a breathtaking resting point was now buried in snow and extremely difficult to navigate.

Nevertheless, one trekker, who had hiked the Himalayas more than a dozen times, reported he had "not once encountered conditions like this" before.

Expert Analysis

A primary big factor is the increased amount of humidity in the air because of how the planet has been heating up, researchers explain.

That has contributed to heavy precipitation over a short span of time, frequently after a prolonged period without rain – unlike in the previous era when monsoon showers were spread uniformly over four months.

A Intensified Monsoon

Weather specialists report the monsoons in South Asia at occasions seem to have become more intense because they are increasingly coming into contact with an additional atmospheric phenomenon, the western weather pattern.

The phenomenon is a atmospheric depression that forms in the Mediterranean region and moves east - it carries chillier temperatures that brings rains and sometimes snowfall to the subcontinent, Pakistan and Nepal.

Global Warming Impacts

Scientists have additionally found that in a warming planet, the increasing relationship between westerly disturbances and monsoons is causing another unusual result.

The warmer air is pushing the weather systems higher, which indicates these atmospheric conditions are now able to pass over the mountain barrier and reach Tibet and additional areas that did not see so much rain in the past.

"What's changed is the predictability of patterns; we can't assume that situations will behave the identical from season to season," commented an seasoned expedition leader.

"This implies flexible planning, real-time decision-making, and knowledgeable guidance [in the Himalayas] have become even more essential."