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密西西比河的高水位和湍急的水流可能导致船期延误，并引发额外费用。

密西西比河在一年中会多次经历高水位。通常所说的丰水期从12月一直持续到5月。最高水位多见于2月至5月期间，因此许多人认为这段时期是唯一的丰水期。然而，高水位可能多次出现，有时从1月持续到8月，中间只有短暂间歇。长期预报不一定准确，原因是水从大面积的陆地流域汇入密西西比河，而这些流域上空的强降水可以使河流的水位迅速上升，几乎没有任何预警。诚然，春天的融雪总会让河水上涨，但不应该认为这是唯一的丰水期。

详细信息请参阅附件。

Mississippi River: High water = high costs

High water and strong currents in the Mississippi River can lead to delays and additional costs being incurred.

The Mississippi River can experience high water conditions at many times of the year. The high-water season is often said to run from December to May. The highest water is usually seen from February to May and many people believe this is the only high-water season. However, high water can occur at many times and has sometimes lasted from January until August, with only intermittent breaks. Long-term forecasts are not always accurate because a huge land mass area drains into the Mississippi River, and heavy precipitation over that land mass can raise the river level quickly, with little warning. Of course, spring snow melt always raises the river, but this should not be considered the only high-water season

See attached file: Mississippi River: High water = high costs.pdf