Tidal Surge Strikes England and Northern Europe |
(11/11/07) |
• Tidal surges happen when strong north winds push water down a waterway such as the North Sea.
• Although relatively rare compared to other severe windstorms, a tidal surge increases the height and velocity of the waves and causes major flooding.
• The risk is greatest at high tide.
• England is especially vulnerable because of its proximity to the North Sea, a natural funnel for the strong north winds.
• The North Sea becomes narrower and shallower to the southwest.
• A similar tidal surge occurred in 1953.
• At that time, no warning system existed and scores lost their lives in 1953.
• The Thames Barrier, which was closed for the 2007 occurrence, had not been constructed in 1953.
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