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Bright skies, gentle breezes and a breathtaking view of Himalayan peaks draped in white powder - that is the fall experience that hikers on Mount Everest have come to love.

However that appears to be transforming.

Shifting Weather Patterns

Weather experts indicate the rainy season now stretches into autumn, which is historically the high-altitude travel period.

During this prolonged tail end of monsoon, they have recorded at least one instance of extreme rainfall almost every year for the past decade, with high-altitude conditions becoming increasingly risky.

Latest Emergency on Everest

Recently, a unexpected snowstorm trapped hundreds of travelers near the eastern side of Everest for multiple days in freezing temperatures at an elevation of more than 4,900m.

Almost 600 trekkers were guided to security by the conclusion of Tuesday, according to reports.

A single person had succumbed from hypothermia and mountain sickness, but the remaining individuals were reportedly in stable health.

Similar Incidents Across the Region

The emergency was on the northern slope but something similar had occurred on the Nepal side, where a South Korean climber died on another Himalayan summit.

The world learned much later because communications were hit by heavy downpours and heavy snowfall.

Authorities estimate that landslides and sudden floods in the country have killed around 60 individuals over the past seven days.

"It is highly atypical for October when we anticipate the skies to stay calm," said an experienced mountain guide.

Economic Impact

Considering autumn represents the preferred season, frequent extreme weather events like this have "disrupted our trekking and mountaineering industry," he continued.

The rainy period in northern India and Nepal typically lasts from June to early autumn, but not anymore.

"Research demonstrates that most of the years in the previous decade have had rainy seasons continuing until the second week of autumn, which is definitely a change," said a high-ranking meteorology expert.

Growing Climate Extremes

Even more concerning is the intense precipitation and snow the tail end of the season produces, like it occurred this time on early October.

High in the mountain range, such extreme conditions means blizzards and snowstorms, which represents a huge danger for trekking, mountaineering and tourism.

Personal Accounts

That's what happened recently when the conditions shifted quite abruptly - the winds began howling, temperatures dropped sharply and sightlines decreased significantly.

The trail that had comfortably led the trekkers to what was expected to be a stunning resting point was now covered in white accumulation and impossible to navigate.

Nevertheless, one hiker, who had climbed the Himalayas more than a twelve times, said he had "never encountered conditions like this" before.

Expert Analysis

One major factor is the higher amount of moisture in the atmosphere because of how the planet has been warming, scientists explain.

That has led to heavy precipitation over a brief period of duration, often after a prolonged dry spell – unlike in the past when seasonal rains were spread evenly over the entire season.

A Intensified Monsoon

Weather specialists report the monsoons in South Asia at times seem to have become more intense because they are increasingly interacting with another weather system, the westerly disturbance.

The phenomenon is a low pressure system that forms in the Mediterranean region and travels eastward - it transports cold air that causes precipitation and occasionally snowfall to the subcontinent, neighboring countries and Nepal.

Global Warming Effects

Scientists have additionally found that in a warming world, the growing interaction between western weather systems and seasonal rains is producing another unusual outcome.

The warmer atmosphere is forcing the clouds to greater altitudes, which means these weather systems are now capable to pass over the mountain barrier and reach the Tibetan plateau and other regions that previously experienced less so much rain before.

"What's changed is the predictability of weather patterns; we can't assume that situations will occur the identical from year to year," commented an experienced expedition leader.

"That means adaptable scheduling, real-time choices, and knowledgeable guidance [in the Himalayas] have become even more important."