Hey you get ready
There are many bands under the name Thunderstorm:

1) Thunderstorm: is a Dutch disco funk band from the eighties.
Members: Alfred Ommen, Benito Darthuizen, Billy Jones, Edgar Darnoud, Ernie Anches, Eugene Bona, Glenn Gaddum, Herman Ristie, Imro Wielkens, Stan Lokhin. Their self-titled album Thunderstorm released at 1981 on Dureco Benelux.

2) Thunderstorm: is an Italian Doom Metal band founded in 1992.

3) Thunderstorm: is a German Traditional Metal band founded in 1988.