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

13 reactions | Severe weather explained alerts in isiXhosa by Lulama Pheme. The video is also available on YouTube: https://www.youtube.com/watch?v=6QCWTaAhsWE&t=6s Don't forget to subscribe to our YouTube channel! | South African Weather Service | Facebook