Mussoorie/Haldwani, Sept. 4 -- Heavy rains continued to lash Uttarakhand, triggering landslides and boulder falls that blocked over 373 roads, including key stretches of the Char Dham yatra highways, while major rivers in some areas swelled above warning and danger marks in several districts. The state recorded an average of 28.2mm rainfall in the 24 hours, 193% above the normal of 9.6mm, with US Nagar receiving highest rainfall at 65mm. The State Emergency Operations Centre issued a flash flood alert for Dehradun, Uttarkashi, Tehri Garhwal and Rudraprayag following an IMD forecast of heavy overnight rain. A yellow alert has been issued for heavy rain in Uttarkashi, Rudraprayag, Chamoli, Bageshwar, Pithoragarh, Nainital and Champawat districts. Amid the downpour, panic gripped Tok Basotiya village in Okhalkanda block of Nainital district after a woman went missing and is feared to have been swept away in Basotia river. Officials said Tulsi Devi (50) had gone to cut grass in a nearby forest on Tuesday but did not return. When villagers resumed the search on Wednesday morning, they found her slippers and sickle near the riverbank, sparking fears that she had slipped into the river. Family members and villagers searched through the night but failed to locate her. An SDRF team later joined the operation, but no success was reported till late evening, Bhimtal MLA Ram Singh Kaira said.. According to the State Disaster Management Authority, 373 roads were closed due to landslides and boulder falls, including 249 PMGSY and 86 PWD roads. Uttarkashi was the worst-hit with 55 blocked routes, followed by Udham Singh Nagar and Almora with 43 each. The water level of the artificial lake in Syana Chatti on the Yamunotri Highway, which had risen above bridge level on Tuesday, receded by three feet on Wednesday, providing relief to residents. "Channelisation work is underway and the situation is improving," said Panni Lal, executive engineer, Purola division. Data from the Central Water Commission showed several rivers running high in some parts. The Aglar river in Tehri breached its danger mark at 688.70 metres, while the Yamuna touched warning levels at Kuthanur and Naugaon in Uttarkashi. The Ganga was above danger at Koteshwar (Tehri) and Haridwar....