A state of emergency remains in effect along British Columbia's Central Coast region, where rising river levels have already prompted the evacuation of at least 45 homes.

A state of emergency was declared in the Bella Coola Valley on Saturday, amid heavy rainfall and rising river levels.

Families in at least 45 homes in the towns of Hagensborg and Walker Island, as long as several fishing camps in the Dean River area, were ordered to be evacuated on Friday and remain displaced.

Showers are forecast to increase through Sunday morning and are expected to make the tense situation worse.

The B.C. River Forecast Centre says more than 100 millimetres is expected on Sunday, adding to the 100 to 200 millimetres that has fallen from Thursday to Saturday.

Flood warnings remain in effect for the areas of Bella Bella, Bella Coola, Kincome, Owikeeno Lake and River's Inlet.

High water levels in the Bella Coola River and surrounding creeks washed over surrounding areas on Saturday picking up debris and blocking roads.

The Bella Coola area was hit by similar flood levels last year, which forced the evacuation of dozens of residents and destroyed part of the main road into the region.

With files from CTV British Columbia's Norma Reid