Whenever there was a big thunderstorm, my late grandmother would put a rubber boot at the window. Thunderbirds do not like rubber boots and it drives them away, it worked every time.

awīyak kāstāt kinokātīwaskisin wāsīnamānihk, pithīsowak kita-pōni kitowak

When someone puts a rubber boot at the window, the Thunderbirds will stop calling