Observing & Predicting

Rainfall was measured by the foot in South Carolina in an event that statistically would happen, on average, once every thousand years.

February 2010

  • NOAA researchers have built a "time machine" for weather that provides detailed snapshots of the global atmosphere from 1891 to 2008. The system's ability to "hindcast" past weather events is emerging as a powerful new tool for detecting and quantifying climate change.