Natural Climate Patterns

Uncommon atmospheric circumstances spawned a pair of tropical cyclones in the western Pacific—one on either side the equator, at nearly the same longitude, at nearly the same time. Why are twin cyclones more common during El Niño?

Monday, April 1, 2013

  • On any given day or any given month, somebody somewhere– maybe even where you live– experiences colder-than-average temperature, even though the globe as a whole is warmer than average.

  • Much colder-than-average temperature during March and a strongly negative Arctic Oscillation Index reminded people in the United States how important this index is to our own climate conditions.

  • NOAA’s Climate Prediction Center released its Spring Outlook on March 21. The big story for the upcoming spring? Relief for many drought-stricken areas of the United States is not likely.