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09 Jul 2021 | 08:13 AM UTC

Nepal: Severe weather likely in Nepal through at least July 11

Severe weather forecast in Nepal through at least July 11.

Informational

Event

The southwest monsoon is bringing thunderstorms with heavy rainfall, landslides, and flooding across Nepal as of July 9. The Nepal Department of Water and Meteorology has forecast further heavy to very heavy rain in Bagmati, Gandaki, Karnali, Lumbini, Province 1, and Sudurpashchim provinces and moderate rain nationwide through at least July 11. Authorities have also warned of floods in the vicinity of rivers in the Bagmati, Gandaki, Lumbini, and Sudurpashchim provinces. Reports indicate that at least seven people have been killed due to landslides and flooding. Officials could update and possibly extend the coverage of weather alerts over the coming days.

Hazardous Conditions
Sustained heavy rainfall could trigger flooding in low-lying communities near rivers, streams, and creeks. Urban flooding is also possible in developed areas with easily overwhelmed stormwater drainage systems. Sites located downstream from large reservoirs or rivers may be subject to flash flooding after relatively short periods of intense rainfall. Landslides are possible in hilly or mountainous areas, especially where the soil has become saturated by heavy rainfall. Disruptions to electricity and telecommunications services are possible where significant flooding or landslides impact utility networks.

Transport
Multiple road closures are underway nationwide. A portion of the Mahendra Highway (East-West Highway, H01) in Kawasoti Municipality and Prithvi Highway in Tanahun, Gandaki Province are closed to traffic. Bhimdutta Highway in Sudurpaschim Province is also closed due to landslides. Floodwaters and debris flows may render some bridges, rail networks, or roadways impassable, impacting overland travel in and around affected areas. Ponding on road surfaces could cause hazardous driving conditions on regional highways. Authorities could temporarily close some low-lying routes that become inundated by floodwaters. Severe weather could also trigger flight delays and cancellations at regional airports. Flooding could block regional rail lines; freight and passenger train delays and cancellations are possible in areas that see heavy rainfall and potential track inundation.

Localized business disruptions may occur in low-lying areas; some businesses might not operate at full capacity because of flood damage to facilities, possible evacuations, and some employees' inability to reach work sites.

Advice

Monitor local media for weather updates and related advisories. Confirm all transport reservations and business appointments before travel. Make allowances for localized travel delays and potential supply chain disruptions where flooding has been forecast. Do not drive on flooded roads. Charge battery-powered devices in the case of prolonged electricity outages.

Resources

Nepal Department of Hydrology and Meteorology (Nepalese)