The Department of Tourism has urged tourists and mountaineers to stay away from high-altitude Himalayan areas from October 28 to November 1, warning of heavy rainfall, snowfall and possible avalanches.

In a public notice, the department said adverse weather was expected in various parts of the country during the period, with the risk of heavy rain, snowstorms and avalanches in the mountains.

According to a weather bulletin issued by the Department of Hydrology and Meteorology, several areas could experience heavy rainfall accompanied by thunderstorms, lightning and strong winds. The rain could increase the risk of floods, landslides and soil erosion, while Himalayan areas could face snowstorms and avalanches.

The department has advised trekkers and climbers to avoid high-altitude areas during the period. Those already in the mountains have been urged to exercise caution and follow weather updates issued by the relevant authorities when planning their movements.

The department has also called on the concerned authorities to ensure that treatment for acute mountain sickness (AMS) remains readily available at health facilities in Himalayan destinations, including Khumbu and Manang, as well as in Kathmandu and Pokhara.

AMS is a potentially serious condition that can affect people travelling to high altitudes, particularly when they ascend too quickly. Ensuring access to medical care is important, as adverse weather could complicate travel and emergency evacuations in the mountains.