El Niño events can shift the position of the jet stream, which in turn changes where storms develop and travel. In the United States, strong El Niño events often bring wetter conditions to the South and California, while the northern states may experience warmer-than-average temperatures. The Gulf Coast and Southeast regions are more likely to see increased rainfall and severe weather during the winter months, including a higher risk of tornadoes. Conversely, the northern U.S. and Pacific Northwest often experience drier and warmer conditions.