Quote Originally Posted by az_gila View Post
Was it truly flooded with the water level that high, or was it a storm surge at high tide?
A bit of both. If these three events converge there will be serious flooding:
  1. Heavy rains and water filling the river from the land
  2. High Spring Tide
  3. Storms surges coming in from the west


These three events occurred in the southern North Sea in 1953.The water moved onto the land with serious flooding in the UK, Belgium and Holland. 1000s died. What saved London was that a dyke in Essex collapsed and water destined for London moved over Essex. The water was lipping over the Embankment in London. London will flood - not a matter of if, but when.



At the highest Spring tides if there is a storm surge water will move up the River Mersey and flooding will occur.