The adverse weather conditions on Saturday meant tournament organisers reduced the competition from 54 holes to 36.
But the inclement weather continued on Sunday, with the second and final round delayed by two and a half hours due to thunder and lightning and a further 15 minutes because of a waterlogged course.
Play was suspended again due to strong gusts of winds and because the conditions did not improve, only Friday's scores were taken into account.
That meant Norway's Skarpnord picked up her third title on the Ladies European Tour and her first in four years by virtue of her three under par 69 at Southbroom Golf Club in KwaZulu-Natal.
She finished one ahead of Finland's Minea Blomqvist, South Africans Ashleigh Simon and Stacy Bregman, England's Charley Hull, Sweden's Camilla Lennarth, American Katie Burnett and Germany's Nina Holleder.