Which preposition to use with tempestuous

as Occurrences 1%

In three days after we came to the entrance of that province, not far from the before mentioned sea, which seemed as tempestuous as the ocean, and in which we saw a large island.

than Occurrences 1%

" Mr. Falkland's countenance had indicated great severity through the whole of this conversation; but now it became more harsh and tempestuous than ever.

Which preposition to use with  tempestuous