Homes have been evacuated, highways are closed and at least two men are missing in British Columbia's Interior after heavy rains caused flooding and mudslides throughout the region.

The City of West Kelowna, Kelowna and the Fintry Delta have all declared a state of emergency in response to the flooding.

A new evacuation order affecting nearly 100 homes in Kelowna, most of them multi-family units, was put in place late Saturday. 

Environment Canada posted severe thunderstorm watches for huge swaths of the province's central and southern Interior on Friday, where floods — caused by rain — were already raging.

The River Forecasting Centre is maintaining a flood watch for various parts of the Interior, as well as a high streamflow advisory for other parts. 

But it said a "drying trend" is expected into Sunday in the southeast region.