Rapidly rising water levels led to some incredible images in Abbotsford.
Cattle were videotaped being towed through Prairie Flats by dinghies.
There were equally dramatic scenes of people being pulled to safety.
Abbotsford residents took their boats out onto the flooded area looking for anyone who needed assistance.
But still, approximately 300 people have not left, according to Mayor Henry Braun.
This is after City of Abbotsford urged everyone to evacuate the Sumas Prairie area east of town.
That's because the municipality has declared that there is a "significant risk to life" as a result of flooding.
The biggest danger now is if the pump station fails.
Most of Sumas Prairie used to be a lake until the early part of the 20th century.
"That lake is going to fill up," Braun warned. "There's nowhere for that water to go."
In addition to heavy rain, the area is being flooded with water coming from the Nooksack River, which overflowed its banks in Washington state.
The mayor is scheduled to hold a news conference at 7:30 a.m. on Wednesday (November 17).