Based on the provided sources, the reader could be expected to learn about how airports in the northeast are impacted by the large amounts of snowfall.
Here's the reasoning:
- Source 1 (a map of northeastern states) provides geographical context about the areas being affected by snowfall.
- Source 2 (a table of snowfall totals in New York City, Philadelphia, and Boston) gives specific data on the snowfall amounts, helping to understand the impact of winter weather in those major cities.
- Source 3 (a video of a crowded airport during peak winter season) illustrates how winter conditions and large crowds may affect operations at airports.
Together, these sources suggest a focus on the effects of snowfall on airport operations and the challenges airports face in the northeastern U.S. during winter months.