MANILA, Philippines — Tropical Storm Trami blew away from the northwestern Philippines on Friday, leaving at least 82 people dead in landslides and extensive flooding that forced authorities to scramble for more rescue boats to save thousands of terrified people, who were trapped, some on their roofs.

Homeowners in the northern Philippines used spades and rakes to clear out debris left by Tropical Storm Trami on Friday while rescuers trawled through thick mud looking for the missing as the death toll rose to 76.