The Climate Prediction Center of the National Oceanic and Atmospheric Administration (NOAA) has reported a 60% chance of a weak La Niña event forming this autumn, likely lasting until March. La Niña is part of the El Niño-Southern Oscillation (ENSO) and is known for cooler ocean temperatures in the Pacific Ocean. This phenomenon can cause major weather changes around the world. For example, northern South America may experience more rainfall, while the southern United States and parts of Mexico might face drier conditions. The impacts of La Niña can affect agriculture, water supplies, and the occurrence of natural disasters. La Niña events usually strengthen trade winds, leading to colder ocean temperatures. This cooling can shift the jet stream northward, increasing rainfall in some areas and reducing it in others. NOAA scientist Michelle L’Heureux noted the rarity of prolonged events, while NASA’s Ben Cook stated that repeated La Niña events could worsen droughts, especially in East Africa.