NEW : Police conduct an off - and - on search , depending on unstable or stable conditions . The two children and ex - husband of a Florida chiropractor could be among the victims . Three homes are destroyed , several damaged in the remote mountain country of British Columbia .
NEW : Crews conduct an off-and-on search , depending on unstable or stable conditions . The two daughters and ex-husband of a Florida chiropractor could be among the missing . Three homes are destroyed , several damaged in the remote mountain area of British Columbia .