As Montag is releasing laments, what is occurring outside that seemed to be "screaming for him"?

Montag is one of the protesters against banning of the books and monopolizing media in the story Fahrenheit 451.

Explanation:

Montag is one of the main characters of the story Fahrenheit 451 which is a story about the burning of the books because at that time of the past, the books were banned.

A deeper meaning in the burning of the books and the story was sealing and monopolizing the media and the devices of the media so that the people can not communicate their ideas and the thoughts with each other. This had a negative impact on the society.