El Niño has far-reaching effects on global weather patterns. In the United States, it typically brings wetter-than-average conditions to the southern third of the country during winter, while the northern third experiences drier conditions. Warmer-than-average temperatures are also common, particularly in the Pacific Northwest and Great Lakes regions. Globally, El Niño can exacerbate heatwaves, disrupt rainfall patterns, and intensify droughts in some areas while increasing rainfall in others. The Atlantic hurricane season may see reduced activity due to increased wind shear, while the Pacific basin could experience heightened hurricane activity. These changes could have significant implications for agriculture, water resources, and disaster preparedness worldwide.