Pennsylvania’s world famous groundhog, Punxsutawney Phil, predicted six more weeks of winter on Thursday after seeing his shadow. This event is part of an American tradition called “Groundhog Day.” It takes place every February 2 in the small Pennsylvanian town of Punxsutawney. Since 1886, thousands of people have come together on this day on a hill called “Gobbler’s Knob.” They watch as a groundhog named Phil predicts the length of the winter season. Today was the 131st official Groundhog Day. A groundhog is a large rodent, and part of a family known as marmots. On Groundhog Day, Phil the groundhog comes out of a hole in the earth just after sunrise. As the tradition goes, Phil will then look for his shadow on the ground. If he sees his shadow, there will be six more weeks of cold weather during winter. If Phil does not see his shadow, warmer weather will arrive soon.