Groundhog Day Confusion

As a child, Groundhog Day was always a confusing time for me.  I know it sounds silly, but for some reason, I only ever heard "If the groundhog sees his shadow, there are six more weeks of winter."  I didn't understand what would happen if he didn't see it - according the calendar, winter is actually more than six weeks after Groundhog day, so why were people always so gloomy at the thought of him seeing his shadow?  It took years before I heard that the alternative was an early spring.

So, will it be six more weeks of winter?  Or - for those of you who don't know the alternative - an early spring?  We will find out tomorrow morning and I am hoping for an early spring.