KATHMANDU: The National Emergency Operation Centrer under the Ministry of Home Affairs has issued a weather warning on the possibility of heavy snowfall in the eastern Himalayan region. “As there is a possibility of heavy snowstorm in the eastern Himalayan region, we request that all helicopter flights be suspended for there till Saturday,” the NEOC said on Friday. It has also advised tourists visiting the area to stay safe. The change in regular pattern of weather is attributed to ‘peripheral effect’ of the Cyclone Fani, which formed over the Bay of Bengal and made a landfall on Odisha coast in India on Friday.