Record rains have forced hundreds of rescues, swamped communities and left rivers high, with more storms forecast

The extent of the damage in Washington state is profound but unclear after more than a week of heavy rains and record flooding, according to the state’s governor, Bob Ferguson.

A barrage of storms from weather systems stretching across the Pacific has dumped close to 2ft (0.6 metres) of rain in parts of the state, swelling rivers far beyond their banks and prompting more than 600 rescues across 10 counties.