Some words about Hurricane Sandy

There are 25 or 30 major US cities along the Gulf Coast and the East Coast: Brownsville, Corpus Christi, Houston, Baton Rouge, New Orleans, Biloxi, Mobile, Pensacola, Tampa, Fort Myers, Miami, Fort Lauderdale, Orlando, Jacksonville, Savannah, Charleston, Myrtle Beach, Wilmington, Norfolk, Wasington DC, Dover, New York, Boston, etc. Every few years one of these cities is going to be hit by a Hurricane. The following two plots demonstrate the truth of this point.