How to pronounce “stormily” in English

She spoke again in the direction of the viper. "Go to missed appointment." The screen turned a gray blur; a sound like pouring rain saturated the speakers; the calendar software made pageturning noises with each traversed week; and the weeks now whished stormily backwards.In the corner the year was still displayed, but the last digit dropped quickly, three, two one, zero, nine, eight; the second digit also moved backward though more slowly.