A reliable numerical model for predicting such flooding was developed for the 2013 Typhoon Haiyan.
Flow velocities in downtown Tacloban reached up to 7 m/s due to flow contraction along the high-density blocks of houses
Water levels reached their maximum peak in just 10 min.
Only 8% of the length of streets in downtown Tacloban were within the safe limits according to velocity–depth criteria.
Pedestrian evacuation in the middle of a storm surge generated by a strong typhoon was confirmed as high-risk behavior.