When I was growing up, they would never cancel school (or anything else) based on a forecast.
They would wait until 5 or 6 am on the day of the storm and make a decision. Many times, we'd go to school and get dismissed at noon if the storm was obviously moving in. But if it wasn't snowing by 6am - we had school!
My great grandmother had lived through the GREAT BLIZZARD OF 1888, so I know family stories about what Manhattan was like during that one and the MUSEUM OF NYC used to have a diorama of that blizzard, that captivated my imagination.
But I lived through the Blizzard of 1947 ( which was supposedly almost as bad as the 1888 one ), and though I was a very tiny child, I still have VERY vivid memories of that one.
And I don't remember anyone being hysterical about blizzards, until lately. The CLIMATE LOONS go into hysterics at the drop of a hat now.