First launch was aborted when I feared that a line had been cut. First, I heard the distinctive click of a line being cut and when I pulled some left break there was no pressure, so I killed the motor. Turned out to be nothing. Second launch was fine except that at 500 feet I could see rain west of Gasparilla Island moving my way. It was not huge and I hoped it would move off to the North but when I saw a powerful wind line form on the Intercoastal Waterway, it was apparent that I was in the path of the precipitation. So…. I turned back and landed without incident. On the surface the wind was picking up and a nice rainbow had formed by the Marina. I could probably have stayed up longer because when I was pulling away from the LZ, the rain had not yet arrived but there was nothing to be gained by staying in the air and daring it to get me. It's all good.