The Department of Hydrology and Meteorology (DHM) has reported that the monsoon trough is currently positioned south of the average location in the eastern region and around its normal position in the western region. This shift in the trough line is expected to influence weather conditions across various provinces, bringing widespread cloud cover and significant rainfall activity.
Afternoon Forecast: Widespread Cloudiness and Moderate Rainfall
According to the DHM’s latest forecast, the country will experience generally cloudy conditions this afternoon. The Koshi, Madhesh, Bagmati, and Gandaki provinces, along with some hilly areas and parts of the Terai, are likely to see moderate rainfall. In particular, the hilly regions of Koshi and Gandaki provinces are forecasted to receive heavy rainfall at one or two locations.
The combination of warm, moisture-laden winds from the Bay of Bengal and the current position of the monsoon trough is creating favorable conditions for rain-bearing clouds to develop over eastern and central Nepal. Residents in the affected areas are advised to remain cautious, especially in regions prone to landslides and flooding.
Nighttime Weather: Cloud Cover and Heavy Rain Risks
Tonight, the DHM projects that the hilly regions of Koshi, Gandaki, and Lumbini provinces will remain generally cloudy, while the rest of the country will experience partly cloudy skies. Moderate rainfall is likely in some locations across Koshi, Bagmati, Gandaki, and Lumbini provinces.
Heavy rainfall is expected at one or two places in the hilly and Terai areas of Koshi, Gandaki, and Lumbini provinces. Such heavy downpours may occur over a short period, potentially leading to sudden rises in river water levels and localized flooding.
Potential Hazards: Landslides, Debris Flows, and Rising River Levels
The DHM has issued warnings about possible natural hazards associated with the forecasted rainfall. Heavy precipitation, especially in hilly terrain, can trigger landslides and debris flows (also known as geograin flows), which pose significant threats to life, property, and infrastructure.
The department has cautioned that both large and small rivers, streams, and rivulets may experience elevated water levels due to intense rainfall. In some areas, this could result in localized inundation and disruption to transportation services, particularly in rural and mountainous regions.
Public Advisory: Stay Alert and Prepared
Authorities have urged the public, local governments, and disaster management agencies to remain vigilant and take necessary precautions. Communities living in landslide-prone slopes and near riverbanks are advised to monitor weather updates closely and be ready to evacuate if necessary.
The DHM has emphasized the importance of avoiding unnecessary travel in high-risk areas during heavy rainfall, securing loose structures and belongings, and ensuring that drainage systems are functional to prevent waterlogging. Additionally, farmers have been advised to protect crops that are sensitive to excessive moisture.
Monsoon Season Context
Nepal’s monsoon season, typically lasting from June to September, is crucial for agriculture, which remains a major component of the country’s economy. However, the season also brings challenges, including flooding, landslides, and damage to infrastructure.
The current monsoon activity is part of the seasonal pattern, but the shifting of the trough line toward the south in the east may result in concentrated rainfall in specific areas, increasing the risk of localized disasters.
Government and Community Preparedness Efforts
In light of the forecast, local authorities are expected to activate disaster response mechanisms. This includes pre-positioning emergency relief supplies, mobilizing rescue teams, and issuing alerts through community radios and social media platforms.
Some districts have already initiated community awareness programs, advising residents on evacuation routes, emergency shelter locations, and the importance of keeping emergency kits ready. Coordination between provincial and federal agencies is also being strengthened to ensure timely assistance in case of emergencies.
Importance of Monitoring and Early Warning Systems
The DHM continues to monitor the movement of the monsoon trough and rainfall patterns using satellite imagery, radar, and ground-based weather stations. Early warning systems are being used to provide real-time alerts to vulnerable communities.
Accurate forecasts play a vital role in reducing disaster risks, as they enable individuals, farmers, and local authorities to make informed decisions and take timely actions. The department has encouraged the public to rely on official forecasts and updates rather than unverified information circulating on social media.
Heightened Vigilance Needed
With moderate to heavy rainfall forecasted in several provinces, particularly in hilly and Terai regions of Koshi, Gandaki, and Lumbini, the coming 24 hours could see an increase in water-related hazards. The DHM’s warnings highlight the need for collective preparedness and swift response to minimize the impact of potential disasters.
Residents are strongly advised to remain updated through official channels, follow safety guidelines, and cooperate with local authorities in implementing preventive measures. While the rains are essential for replenishing water sources and supporting agriculture, safety must remain the top priority during periods of intense precipitation.
