What happened
A pilot was attempting to depart from a small lake in a float-equipped airplane to reposition to a larger nearby lake. As the pilot applied takeoff power, the left wing was immediately lifted by gusty winds. Despite the application of left aileron, the aircraft continued to roll to the right. The right wing subsequently contacted the water, causing the aircraft to either nose over or roll over.
The pilot noted that the gusty winds from the north might have been influenced by a nearby hill adjacent to the lake. Prior to the departure from the remote location, the pilot had used a satellite phone to check weather conditions for both the departure area and the intended destination. The weather report indicated that the destination was experiencing turbulence and gusty winds. At the time of the incident, the nearest weather reporting station, located 30 miles away, had reported winds of 13 knots from the north.