Why is it that if the groundhog sees its shadow that it means that its 2 more weeks of winter than if it doesn't?

The tradition of Groundhog Day, where a groundhog's shadow predicts the weather, stems from folklore. If the groundhog sees its shadow, it indicates clear weather, suggesting that winter will continue for six more weeks. Conversely, if it doesn’t see its shadow, it implies cloudy conditions and a quicker arrival of spring, leading to the belief that winter is nearing its end. This whimsical interpretation reflects cultural beliefs rather than scientific forecasting.