🔗 Share this article Why the Autumn Trekking Season Became Fatal in the Himalayas Fall trekking period is more and more seeing extreme weather Bright heavens, gentle winds and a breathtaking vista of Himalayan peaks covered in snow - that is the autumn setting that trekkers on Mount Everest have come to love. However that appears to be shifting. Shifting Weather Patterns Meteorologists say the monsoon now stretches into fall, which is historically the mountain tourism season. Throughout this prolonged conclusion of the rainy season, they have recorded at least one episode of extreme precipitation nearly every year for the previous decade, with mountain weather becoming more risky. Latest Emergency on Everest Last weekend, a shock snowstorm trapped hundreds of travelers near the east-facing face of Mount Everest for multiple days in bitterly cold conditions at an elevation of more than 16,000ft. Approximately six hundred hikers were led to security by the conclusion of Tuesday, according to sources. A single person had died from extreme cold and mountain sickness, but the others were reportedly in stable health. Comparable Incidents Across the Region The emergency was on the northern slope but a comparable situation had occurred on the Nepal side, where a South Korean mountaineer lost his life on Mera Peak. The international community learned much later because communications were hit by heavy downpours and heavy snowfall. Authorities estimate that mudslides and sudden floods in the region have claimed the lives of approximately 60 people over the past week. "It is very atypical for October during which we anticipate the skies to remain clear," stated an experienced mountain guide. Business Impact Given autumn represents the favored season, frequent storms like these have "disrupted our mountaineering and climbing business," he continued. The rainy period in northern India and Nepal typically continues from early summer to mid-September, but no longer. "Research shows that most of the annual cycles in the past decade have had rainy seasons continuing until the middle of October, which is definitely a shift," explained a senior weather official. Increasing Weather Extremes Even more worrying is the intense precipitation and snowfall the concluding phase of the period brings, like it occurred this time on early October. At elevation in the Himalayas, such severe conditions translates to blizzards and winter storms, which constitutes a huge danger for trekking, mountaineering and the travel industry. A snowstorm recently stranded hundreds of tourists near the east side of the world's highest peak Firsthand Experiences That's what occurred recently when the weather changed quite suddenly - the winds began roaring, mercury readings dropped sharply and sightlines decreased significantly. The trail that had easily led the trekkers to what was expected to be a breathtaking pitstop was now covered in snow and impossible to navigate. Still, one trekker, who had climbed the Himalayas more than a twelve occasions, reported he had "never encountered conditions like this" before. Expert Analysis A primary big factor is the increased quantity of moisture in the atmosphere because of how the world has been heating up, researchers explain. This has led to heavy precipitation over a short span of duration, often after a prolonged period without rain – unlike in the past when monsoon showers were distributed evenly over four months. Landslides and flash floods in Nepal over the past several days have killed dozens A Intensified Monsoon Weather experts say the rainy seasons in South Asia at occasions appear to have become more intense because they are increasingly interacting with an additional atmospheric phenomenon, the westerly disturbance. The phenomenon is a low pressure system that forms in the Mediterranean area and travels east - it carries chillier temperatures that causes precipitation and sometimes snowfall to the subcontinent, neighboring countries and the Himalayan region. Global Warming Effects Scientists have additionally found that in a heating world, the growing interaction between western weather systems and seasonal rains is causing an additional unusual outcome. The warmer air is forcing the weather systems higher, which indicates these atmospheric conditions are now able to cross the mountain barrier and reach the Tibetan plateau and other areas that did not see so much precipitation before. "The transformation is the reliability of patterns; we can't assume that situations will behave the identical from year to year," commented an experienced expedition leader. "That means flexible scheduling, real-time decision-making, and experienced leadership [in the Himalayas] have become increasingly essential."