Mussoorie, Sept. 28 -- Heavy rain lashed Uttarakhand in the past 24 hours, while higher reaches, including Kedarnath, received light to heavy snowfall on Sunday, triggering landslides and road blockages at several locations, including stretches of the Char Dham highway network. The Gangotri National Highway was blocked near Dharasu after boulders fell onto the road. The Border Roads Organisation (BRO) deployed teams to clear the affected stretch, which was reopened by late evening on Sunday, said Shardul Gusain, district disaster management officer, Uttarkashi. In view of incessant rainfall and fresh snowfall in high-altitude Himalayan areas, Uttarkashi district magistrate Prashant Arya visited the District Emergency Operation Centre and Smart Control Room at the district headquarters to assess ground conditions and review administrative preparedness. The district administration monitored real-time weather data, landslide reports and road clearance status received from various tehsils. Officials were placed on high alert, while arrangements along the pilgrimage circuits were reviewed. Live conditions at the Gangotri and Yamunotri shrines were also monitored through integrated CCTV surveillance. The district magistrate directed officials of the National Highways, BRO, Public Works Department and Pradhan Mantri Gram Sadak Yojana to keep heavy earthmoving machinery and manpower on high standby so that road blockages could be cleared without delay. The administration also reviewed trekking groups operating in the upper Himalayan reaches and instructed officials to maintain constant communication with expedition members. Trekkers were advised to remain at secure shelters or move towards safer terrain in accordance with weather conditions. Search-and-rescue teams were equipped for immediate deployment. In Rudraprayag district, continuous heavy rain triggered landslides near Sirobagad, bringing debris onto the route and disrupting traffic. Authorities advised commuters and motorists to exercise extreme caution and avoid unnecessary travel until weather conditions improve and the highway is cleared. Nainital received nearly 250 mm of rainfall in the past 48 hours. Rain continued through Sunday, triggering landslides and debris on roads and increasing the risk of rockfalls in vulnerable areas. Authorities opened all discharge gates of Naini Lake. The Nainital-Haldwani National Highway remained closed for an extended period because of landslides and debris, affecting vehicle movement and the supply of essential commodities, including milk, to the hill town. Traffic on the Nainital-Almora National Highway was also disrupted, with falling debris and stones forcing vehicles to stop and leaving commuters stranded for hours. Officials said water was being released continuously from Naini Lake to regulate its level. The administration and concerned departments were monitoring the lake, vulnerable areas and road conditions. Tourism in Nainital was also affected by the weather limiting movement on Sunday. Hoteliers said sightseeing and tourist movement had slowed considerably. Mussoorie also received continuous rain during the past 48 hours, including Sunday. Several major rivers in Uttarakhand showed rising trends after significant rainfall. Data from the Central Water Commission's Himalayan Ganga Division showed the Ganga rising at Devprayag, Rishikesh and Haridwar, with levels of 458.90 metres, 339.20 metres and 292.17 metres respectively. The Alaknanda was rising at Rudraprayag Sangam at 621.93 metres after 121.2 mm of rain, while the Pindar at Karnaprayag reached 770.50 metres after 146.2 mm of rainfall. The Mandakini was rising at Ganganagar and Rudraprayag, while the Kali, Saryu and Gori rivers were also showing rising trends at Dharchula, Pithoragarh and Jauljibi. The Bhagirathi remained stable at Uttarkashi and Devprayag and was falling at Koteshwar. At Bhimgoda Barrage in Haridwar, the Ganga stood at 292.15 metres against a danger mark of 294 metres, with a discharge of 108,140 cusecs. The Yamuna at Dakpathar Barrage in Dehradun stood at 455.67 metres against a danger level of 456 metres, with a discharge of 15,039 cusecs. The Kosi Barrage in Ramnagar recorded a discharge of 24,499 cusecs, while Veerbhadra Barrage in Rishikesh recorded 84,108.42 cusecs. The India Meteorological Department issued a yellow alert, forecasting heavy rain at isolated places in Uttarkashi and Dehradun and thunderstorms accompanied by lightning and intense spells of rain at isolated places in the Garhwal region on Monday....