Hughes conveys a lethargy in the surrounding, seemingly inanimate nature of the first stanza- "sodden moors"- incapable of movement because of the sheer force of the weather: "neither of which will stop at doors." The sharp and puncturing 'k' sounds in "shake" and "break" shows the brutality of nature, almost as if it beating at the sides of the house, rocking everything within it. The phrase "the arrogance of blood and bone" allows Hughes to show the brutality of the weather in an anatomically aggressive lexical field, like nature has been beaten to a pulp.
Hughes further informs the reader of the strength of the weather by how it affects the living creatures surrounding Crow Hill: "cows that sway a bony back,/ pigs upon delicate feet." This shows the reader how living beings are affected, animals who should otherwise be able to fight back. These animals are now left to battle against the weather on their own and quite clearly can't. The "hawk", an animal normally considered aggresive and intimidating, is in fact defeated by the weather- "thrown the hawk upon the wind"- defiant but still defeated.