<P> The El Niño--Southern Oscillation affects the location of the jet stream, which alters rainfall patterns across the West, Midwest, the Southeast, and throughout the tropics . The shift in the jet stream also leads to shifts in the occurrence of severe weather, and the number of tropical cyclones expected within the tropics in the Atlantic and Pacific oceans affected by changes in the ocean temperature and the subtropical jet stream . The winter will have a negative phase according to the Arctic oscillation (AO). </P> <P> During El Niño, the northern tier of the lower 48 United States and southern Alaska will exhibit above normal temperatures during the fall and winter . The Gulf Coast of the United States will experience below normal temperatures, during the winter season . </P>

What does el nino do to the weather
find me the text answering this question