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Progress in Port Approaches
Published online by Cambridge University Press: 18 January 2010
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Dense fog prevailed over the whole of the Thames area for three days from 1518 on 18th through to 1900 on 21st December 1972, with no real clearances of significant extent or duration throughout this period. Such prolonged fog had not occurred there since December, 1962.
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- Copyright © The Royal Institute of Navigation 1973