El Niño's effects vary by region. In the southern U.S., states like Texas and those along the Gulf Coast often experience heavier-than-normal rainfall, which can lead to flooding and icy conditions when temperatures drop. The Northeast and mid-Atlantic regions may see a mix of rain, sleet, and heavy snow, depending on storm trajectories and temperature fluctuations. The Midwest and Great Lakes regions are prone to rapid freezing and thawing cycles, which can create hazardous road conditions. Meanwhile, the Pacific Northwest may experience inconsistent snowfall and fluctuating snow levels, making it difficult to predict winter conditions.