"Silný vítr zabil dva lidi."

Translation: A strong wind killed two people.

[Tibro3]

Taking note of the fact that singulars and plurals do not always perfectly correspond across languages, I would offer the English translation as, "Strong winds killed two people."

[VladaFu]

Plural "silné větry" is possible in Czech as well. So I think the Golden rule is against accepting.