Final answer:
The question is about the heavy snowfall that occurred on a specific day.
Step-by-step explanation:
The question is not directly related to any specific subject. It is a statement about a snowy day. However, since the question is written in English, we can infer that it is about the weather and the amount of snowfall.
The sentence 'We had a lot of snow today' is a statement about the amount of snowfall that occurred on a specific day. It describes a heavy snowfall.
The sentence 'It snowed a lot today' is another way of saying that there was heavy snowfall on that day.
Lastly, 'Today's snowfall was heavy' is a statement that confirms that a significant amount of snowfall occurred on the day in question.