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The flood of April 1974 in southern Mississippi and southeastern Louisiana
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1975
[PDF-3.51 MB]
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Description:The flood of April 1974 over the Pascagoula and Pearl River Basins in southern Mississippi and southeastern Louisiana ranks among the most severe in terms of crest stages and maximum flood discharges reached. Record or near-record flooding occurred at many sites. This flood was mainly the result of a storm that covered Louisiana, Mississippi, and western Alabama on April 11- 15, 1974, with the heaviest precipitation over southern Mississippi. Significant incursion of tropical maritime air mass into the region occurred prior to and during the storm. The broad synoptic-scale situation associated with the precipitation was an occluded Low centered over the Midwest together with its frontal system. The major portion of the storm precipitation, however, was due to mesoscale squall line severe storms that developed in the moist environment of the warm sector ahead of the front. Amounts exceeding the 100-yr rainfall were observed at some places in southern Mississippi and at least one site in Louisiana. Flood discharges at several gaging sites along these two river systems also established new records.
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Content Notes:Edwin H. Chin.
"August 1975."
Includes bibliographical references.
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Rights Information:Public Domain
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