Observing & Predicting

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?

Saturday, December 1, 2012

  • Deke Arndt, Chief of the Climate Monitoring Branch, National Climatic Data Center

  • It’s natural to associate drought with heat and with summer, but drought also impacts us during winter months. Winter wheat yields are declining, and the Mississippi River is approaching an all-time low. Understanding drought conditions and how they are affecting us is part of being “climate smart.”
     

  • NOAA released the 2012 installment of the annual Arctic Report Card on December 5, 2012, as part of the American Geophysical Union's fall meeting. This image collection is a gallery of highlights based on the report's major themes. It was developed by the NOAA Climate.gov team in cooperation with Arctic Report Card authors and other Arctic experts.

  • The summer of 2012 brought Greenland far more extensive melt than anything observed in the satellite record: in July 2012, surface melt extended over nearly the entire ice sheet. The standardized melt index was nearly double the previous record.