Water Resources of the United States

PROJECT ALERT NOTICE (MS) Mississippi flooding

Date: Fri, 31 Aug 2012 10:12:25 EDT

Summary: Crews from the Mississippi WSC continue documenting floods from Hurricane Isaac

Rivers in south and soutwest Mississippi experienced significant flooding as a result of rains from Hurricane Isaac. Rivers in the soutwest part of the state, including the Homochitto, Amite, and Tangipahoa are receding. Bogue Chitto is cresting this morning. None were at record stages. Small rivers in the Lower Pearl River basin around Picayune crested over night at record stages. Streams in the Lower Pascagoula and Coastal basins, including Black Creek, Red Creek, and the Wolf River are still rising. The Wolf river is above the recorded peak of record (since 1971).

Currently there are 4 field crews out measureing discharge at gages in the affected areas.

The heavy rains also cause Lake Tangipahoa near McComb, MS to flow over the emergency spillway, and saturation of the dam caused an area 100+ ft long to slough off the face and there are concerns about a structural failure. State officials are working on dewatering the lake. Crews from the Mississippi WSC deployed psensors in the lake, below the spillway, and at bridges below the dam to monitor the affects of the drawdown.

Sub-Region: Central South; Region: Central United States

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