Men's Journal: Breaking News It seemed hard to believe at first. The National Weather Service was really issuing WINTER storm warnings for snow in late June? But it really happened. Three U.S. states were hit with the winter storm warnings, and Yellowstone National Park was seeing snow. That has a lot of people wondering why and what caused the unusual phenomenon. Even stranger, the summer snowfall alerts were coming as the eastern third of the U.S. faced what could be a record-breaking heat wave with the heat index even predicted to reach 115 degrees in some places. According to USA...