On-line Te Reo Māori Dictionary

Paroro (i), pāroro. 1. n. Threatening clouds, scud, bad weather, storm. I te mea ka puta te paroro, ka waipuke te whenua.—Kei te anu o te paroro i hu nui mai nei na (M. 45).

2. a. Cloudy, threatening. Ka titiro ki te rangi e paroro ana, ka noho.

Williams Dictionary

Paroro (ii), n. Inarticulate sound, howl. Ka rongo i te paroro kuri (W. ii, 13).

whakaparoro, v.i. Howl.

Williams Dictionary