Color to me conveys much better the beauty and might of the storm.
B&W conveys a tone that is more ominous of "something bad is coming".
The two two me feel totally different, I personally prefer the color one, unless the point is foretelling a building even in some sort of narrative. (like, if the next page in a book is going to show the midst or aftermath of a downpour)
I guess to me, the B&W feels much more negative. the color is much more admiration of the will, power, and fury of nature.