RedactedNarrative: Vessel # I was anchored in the river. The weather conditions were strong winds and choppy waves. While anchored the vessel drifted sideways into the current and began to taking water over the gunwale. The incoming water overwhelmed the bilge. The operator of the vessel cut the anchor line and attempted to drive towards a nearby pontoon boat. The vessel swamped then capsized. Passenger #1 and the operator of the vessel fell overboard and were quickly rescued by pontoon boat fishing nearby (witness#!).