Bitzer defines rhetorical situation as a natural context of persons, events, objects, relations, and exigence. An utterance which participates in a situation in a natural way, and in many cases important for the completion of an activity. .
The main key terms he uses that stand out to me are rhetoric, person, social, activity, and situation.
My definition of rhetorical situation is an event that includes an issue or topic, and audience, and a constraint that must be overcome.
An example of a rhetorical situation is a prosecutors closing statement. In a closing statement you have a person speaking to an audience, regarding a situation and evidence used in a social context.
Rhetorical situation connects to genre because they are both expressed writing, words, or actions being used to give context or meaning to a situation and give it a better and more defined understanding.