I sang this with Norah Rendell at Celtic College in Goderich, Ont. a couple of years ago. Slight difference in lyrics:

If I had the power the storms for to rise,
I would blow the winds higher to darken the skies;
I would blow the winds higher to make salt seas roar
for the day that my darling sailed away from Culmore.

lovely melody- very like A Health to the Company