preview

El Niño Vs La Niña

Decent Essays

El Niño and La Niña are opposite effects of the same phenomenon. They both cause changes in the temperatures between the atmosphere and the Pacific region. El Niño is caused by a change in the wind patterns. The Pacific trade winds go from east to west and the warm ocean water go the opposite direction. Normally the two forces creates a balance in the middle. When the Pacific trade winds are weaker than usual, the warm ocean water rushes to the east and collides with the the west coast of the coastal cities at the east of the Pacific. This causes the average ocean temperature to be much warmer. La Niña is effectively the opposite of El Niño. When the Pacific trade winds are stronger than usual, the warm ocean water is pushed further back to the west. This causes the …show more content…

It changes atmospheric pressures with consequences for rainfall, wind patterns, sea surface temperatures and can sometimes have a positive, and sometimes a negative effect on those systems. The beginning of the El Niño system will be seen over North America in the preceding winter. They typically include mild winter temperatures over western Canada and north western USA, above average precipitation in the Gulf Coast, including Florida, and a drier than average period in Ohio and Pacific Northwest. The effects of El Niño can sometime be erratic and are not always be predictable. Like El Niño, La Niña too affects atmospheric pressure and temperature, rainfall, and ocean temperature. It is continental North America where most of these conditions are felt. The wider effects include stronger winds along the equatorial region, especially in the Pacific, temperatures are above average in the southeast and below average in the northwest, conditions are more favorable for hurricanes in the Caribbean and central Atlantic area, greater instances of tornados in those states of the US already vulnerable to

Get Access