Eimhjellevatnet or Emhjellevatnet (also known as Storfjorden) is a lake in Hyen area of Gloppen Municipality in Sogn og Fjordane county, Norway. The 11.39-square-kilometre (4.40 sq mi) lake is located in the western part of the municipality near the border with Flora Municipality. The villages of Eimhjellen and Solheim can be found along its shore and the village of Straume lies about 15 kilometres (9.3 mi) to the north. The lake lies about 25 kilometres (16 mi) southwest of the municipal center of Sandane.