4.
Weather events:
heavy rainfall and thunderstorms over a short period;
high tide combined with stormy conditions.
Poor maintenance:
faulty sewer networks;
poor or insufficient drainage networks;
Poor maintenance:
faulty sewer networks;
inadequate maintenance of watercourses.
5. This is a type of flooding, where a river bursts or overtops its
banks and floods the areas around it, is more common than
coastal flooding in the UK. River flooding is generally caused by
prolonged, extensive rain. Flooding can be worsened by melting
snow. Flooding can also occur if the free flow of a river gets
blocked by fallen trees, natural overgrowth or rubbish.
6. Heavy storms or other extreme weather conditions
combined with high tides can cause sea levels to rise
above normal, force sea water to the land and cause
coastal flooding. defences need to be in place to
safeguard life and property. The Environment Agency
and SEPA constantly monitor sea levels and release
flood warnings when required.
7.
Floods in China in 1931
St. Felix's Flood in Netherlands in 1930
Hanoi and Red River Delta flood in North
Vietnam in 1970
Eastern Guatemala flood in 1949
Bangladesh monsoon rain 1972
St. Marcellus flood in Germany, Denmark
and Netherlands in 1362
Vargas mudslide in Venezuela in 1999
