RedactedNarrative: V1 took a wave over the side and capsized.    V1 was attempting to travel East against the flow towards Lake Powell when he no longer had forward momentum.  The vessel turned in the current and a wave came over the starboard side causing flooding. OP1 jumped from the vessel after shutting off the engine.  After jumping from the vessel another wave capsized the vessel and it was taken thru the pass to the Gulf of Mexico.