Whole villages perched on sandbars or on the banks of rivers were washed away when Washi struck Mindanao and nearby areas at the weekend.
Ramos' latest toll was a sharp increase from the council's previous figures of 662 dead and 82 missing issued just hours earlier.
The Philippine Red Cross, which is doing its own tally, reported 713 dead and 563 missing.
Iligan and Cagayan de Oro are planning mass burials as scores of decomposing bodies have swamped the local funeral parlours, filling the air with an overpowering stench.
The disaster area, about 800km from the capital, Manila, is normally bypassed by the average of 20 typhoons that ravage other parts of the far-flung Philippine archipelago every year.
As a result, many residents were caught by surprise when floods suddenly hit their homes in the dead of night, before dawn on Saturday.
President Benigno Aquino is scheduled to visit the storm-hit areas today after ordering a review of government disaster prevention measures.
- AAP