What has New York City experienced despite the impact of Hurricane Erin?

New York City experienced ideal conditions for urban surfing following Hurricane Erin due to the unique ocean swells generated by the storm. Typically, hurricanes produce significant wave patterns that surfers look to capitalize on. While hurricanes usually lead to warnings of severe weather and potential flooding, there can be periods when the conditions created by the storm, such as favorable wind direction and wave height, align perfectly for surfing.

Contextually, options like flooding and severe storm damage link closely to hurricanes; however, in this case, New York City actually found itself benefiting from Erin's aftermath in a way that attracted surfers rather than experiencing widespread destruction or evacuation orders typically associated with such storms. The mention of evacuations of coastal areas also fits the typical response to hurricane threats, but for this scenario, the focus is on the fun and recreational aspect that arose instead. Hence, the correct answer reflects a rather unique situation where the storm's aftermath had a positive impact for a specific area of urban activity.