The amount of precipitation changes during El Niño in many areas of the world.
Click on image for full size
Courtesy of NOAA
Teleconnections: Changes in Weather Linked Together
Changes in the atmosphere in one place can affect the weather very far away. Scientists call this phenomenon teleconnections.
Sometimes the way air moves around the atmosphere changes over time. The changes to the atmosphere can last a few weeks, or they might last for many months. These changes cause teleconnections – changes in weather in many places in the world.
There are big changes in the weather in many places during El Niño events. Africa and Australia have weather that is colder and drier than usual. Southern Alaska can become warmer than usual and the U.S. Gulf Coast can be cooler and more rainy than usual. El Niño even affects the weather in Antarctica.
The North Atlantic Oscillation can cause unusual weather all over the Northern Hemisphere like cold and snowy weather in eastern North America, while there is bitter cold in Northern Europe and wet weather in southern Europe and northern Africa.
Last modified September 18, 2008 by Lisa Gardiner.
You might also be interested in:
Antarctica is the coldest, windiest, and driest continent on Earth. It is about one and a half times the size of the United States. Almost all of Antarctica is covered with a thick layer of ice called...more
Sometimes the way the air moves around in the atmosphere changes.The way water moves through the ocean can change too. These changes can cause unusual weather for a few weeks or a few months or a year...more
The winds in the Southeast Pacific mainly blow from south to north. They affect the weather and climate in the region. They also affect the climate in other places around the world. Air near the equator...more
Looking for online content that can be used for a climate change education course or module? Pages linked below can be used to support an introductory climate change education for either a unit or a full...more
Rainbows appear in the sky when there is bright sunlight and rain. Sunlight is known as visible or white light and is actually a mixture of colors. The sun's rays pass through millions of raindrops. A...more
It takes the Earth one year to travel around the sun one time. During this year, there are four seasons: summer, autumn, winter, and spring. Each season depends on the amount of sunlight reaching the...more
Scientists sometimes travel in airplanes that carry weather instruments in order to gather data about the atmosphere. These research aircraft bring air from the outside into the plane so scientists can...more