Memorial Day weekend guests at Whiskeytown National Recreation Area should be on alert for fast moving, deep and very cold water, the park’s rangers cautioned. The Bureau of Reclamationis releasing more water through Whiskeytown Dam and into the park through June 24, boosting water levels. Expect highest flows this week, peaking Thursday, according to an announcement issued by the park. … Increasing the amount of water flowing into Clear Creek and the Trinity River will benefit fish species, including salmon, by mimicking natural springtime runoff. These fish need a lot of water, “particularly cold water if you are (a) Chinook salmon,” the park said. Sacramento River spring-run Chinook live in Clear Creek, and are under federal protection.