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Corp of Engineers managing Cumberland River basin for extra rainfall from Isaias

In response to the most recent path for Hurricane Isaias, the U.S. Army Corps of Engineers Nashville District is actively managing several lakes across the Cumberland River Basin over the next three days in preparation for potential heavy precipitation.

Although the current storm track places the region on the outskirts of the heaviest anticipated weather, with only 0.75 to 1.25 inches of rain forecasted through Sunday, engineers are not expecting flooding of the mainstream Cumberland River.

The Cumberland River Basin has experienced a dry year, meaning the reservoir systems have sufficient capacity to absorb potential runoff, and ensures no flooding threat downstream into Lake Barkley and ultimately the Ohio River upstream from Paducah.

The extended dry period this summer prompted Nashville District Water Management to declare drought conditions within the basin from the middle of April to late June, reducing the projects' ability to generate hydropower and release water.

“2026 has been one of the driest years on record for the Cumberland River Basin, where we set low pools of record this summer at Wolf Creek, Dale Hollow, and J. Percy Priest,” said Gabe Wagner, Nashville District water manager, “but it has set us up in a favorable position to store runoff during this potential period of severe weather.”

Even though Nashville District Water Management is not expecting flooding of the mainstem Cumberland River, they maintain that the public should pay attention to flood warnings and flash food alerts from the National Weather Service because heavy rain could cause localized flooding along creeks and rivers not protected by Corps of Engineers dams and reservoirs.
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