La Niña weather characteristics
1. Cooler than normal sea surface temperatures in the central and eastern tropical Pacific Ocean
2. Increased probability of above-average rainfall in the southern United States, northern South America, and parts of southeast Asia
3. Increased likelihood of below-average rainfall in the western Pacific, eastern Australia, and parts of Africa
4. Strengthening of the Pacific trade winds
5. Weakening of the South Asian monsoon
6. Increased tropical cyclone activity in the western Pacific
7. Shift in atmospheric circulation patterns, leading to changes in global weather patterns.