Taiwan's climate and geography are to a large extent responsible for floods. Located in the sub-tropical zone, the island is often afflicted by typhoons which bring huge amounts of precipitation in a short time. Taiwan is mountainous, and the Central Mountain Range dividing the island from north to south is the catchment area for most of Taiwan's short but fast-flowing rivers.
雖然事隔一年，許多人對去年數次水患仍記憶猶新：五月二十八日的水災，桃園、新竹、苗栗地區災情慘重；七月十九日莫瑞颱風帶來的豪雨，使台北地區積水處處；九月三日艾妮絲颱風過後的強勁西南氣流，使嘉南高屏一帶霪雨成災。