You need to send admissions an email stating that you were intending to visit the school on X date but your plans had to change due to damages suffered to your home from Hurricane Sandy. It is your intention to visit the school in the near future and will update them when an you can arrange it. You further want to state that Cornell is your top choice and you look forward to attending school there next fall.
Keep it direct and to the point. Do not go into too many details about the damage or your personal circumstances -- they understand the damage as every admissions person watches the news.
My guess is that you will get a very nice email back from somebody in admissions.
Senior Admissions Consultant Manhattan Review
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