Arctic air plunging south collided with a warm, moisture-rich low from the Gulf of Mexico, triggering the major 2025 US winter storm. This clash intensified snowfall, wind speeds, and travel disruptions across several states. Meteorologists note that strong pressure gradients and rapid cyclogenesis made the system unusually powerful, allowing snow to reach regions that rarely see major winter impacts. For official insights into how winter storms form, NOAA provides detailed guidance:
https://www.weather.gov/fgz/WinterStorms
