This video, based on data from the NOAA Global Forecast System weather model, shows global winds and predicted amounts of precipitation for the storm forecast to hit the Eastern U.S. January 22-23, 2016.This model, which provides three-hour time increments for dozens of global variables, is one of the most widely used numerical forecast models in the world and is updated every six hours. The winds are depicted using tracers to show wind speed and direction. This particular variable shown here re

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NOAA's powerful Global Forecast System model was upgraded today, providing forecasters with a more accurate 4-D picture of how a weather system will evolve. The upgrade is the latest of a number of model improvements rolling out this spring and summer, thanks to increased supercomputing power NOAA acquired earlier this year. More information on the May 11, 2016 GFS upgrade here: http://www.noaa.gov/noaa’s-premier-forecast-model-goes-four-dimensional Video Credit: NOAA | U.S. National Weather Ser