Weather: Winter rain eastward, cold surge, avalanche risk

KATHMANDU: The weather system that began in western Nepal is gradually impacting the entire country.

According to the Department of Hydrology and Meteorology, the influence of a westerly low-pressure system started affecting Sudurpashchim Province on Monday evening and is now spreading nationwide.

Gradual Spread Across Provinces

Meteorologist Rojan Lamichhane reported that the system had reached Karnali Province by Monday night and is gradually moving towards Gandaki and Lumbini provinces. While the system is expected to weaken as it advances towards higher altitudes, its effects will still be noticeable.

The department predicts overcast conditions throughout the day, with the system gradually weakening from Wednesday. While no rainfall has been recorded so far, light snowfall is expected in high-altitude and mountainous areas during the night and morning. Some areas may also experience light rain.

Impacted Regions and Forecast

The westerly low-pressure system has primarily impacted Sudurpashchim, Karnali, Lumbini, and Gandaki provinces. In Koshi Province, partial overcast conditions are seen in hilly regions, while other areas have relatively clear skies.

The department forecasts light rainfall in parts of Bagmati and Madhesh provinces, as well as one or two locations in Koshi Province, over the next 24 hours.

Cold Wave Intensifies

The weather changes have led to a resurgence of cold temperatures. After a brief decline in cold conditions towards the end of Mangsir, temperatures started dropping again on Monday.

In Kathmandu, the minimum temperature was recorded at 4.3°C on Monday, compared to 4.8°C on December 19. Jumla experienced a significant drop to -7.8°C, down from -7.2°C on December 19. Other regions are also witnessing declining minimum temperatures.

Snowfall and Safety Concerns in Humla

Snowfall began in Humla district late Monday night, with up to two inches of snow accumulating in Simikot, the district headquarters. In northern areas like Namkha Rural Municipality, snow has reached depths of up to one foot.

Chief District Officer Narayan Pandey reported that the snowfall, combined with extreme cold, has disrupted daily life and transportation. Villages such as Limi, Yari, Halji, Til, and Hilsa in Namkha Rural Municipality have been particularly affected.

The temperature in Simikot has dropped below freezing, while the southern areas of the district are experiencing rainfall.

Chief District Officer Pandey urged residents, particularly children and the elderly, to stay safe. He also advised those living in areas prone to avalanches to exercise caution and seek safety.