Manhattan ? Officials are urging boaters to stay away from Tuttle Creek Lake for now, because high water levels left all boat ramps under water and large amounts of floating debris.

“We strongly suggest that boaters keep off the water until the high water and drift conditions improve,” said Brian McNulty, operations manager at Tuttle Creek, northeast of Manhattan. “Boaters need to keep in mind (that) besides the visible floating debris, unseen partially submerged debris is even a greater threat.”

Counties throughout Kansas have dealt with flooding concerns following recent storms that brought heavy rainfall and tornadoes, including a deadly one that leveled the southwest town of Greensburg.

The last time Tuttle Creek levels were as high as they are now was 12 years ago, officials said. Numerous dead trees and other debris have accumulated and are floating in the water.

U.S. Army Corps of Engineers officials estimate 50 acres of drift material is floating on the lake surface near the dam. They say more debris is making its way down the lake.

Sixteen of the 18 Kansas City district lakes are storing water within their flood pool, Kansas City-area corps officials said. Some districts are releasing water to prepare for potential flooding, while others are still making plans.

Tuttle Creek’s elevation was at 1,098.37 as of Saturday morning and was releasing water at only 100 cubic feet per second.