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

159K views · 2.5K reactions | I’m sure the latest GFS weather model will generate plenty of noise and already getting lots of questions on beast from the East charts but no need to panic for now | Carlow Weather | Facebook

The midday run of the American GFS forecast model is in, and this animation shows the progress of an area of low pressure it expects to develop and move east, bringing snow to areas on the north side of the storm. This animation covers the period from Sunday evening through Tuesday night. Most of the snow with this system falls late Monday / early Tuesday. More forecast details are available on https://www.weatherboy.com | Weatherboy Weather

The GFS Model out through 240 hours shows one solution to the evolution of the two low pressure systems that will impact the state over the next several days. The blue/purple color represents higher moisture, while the orange/red color indicates drier air. | US National Weather Service Tucson Arizona

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22K views · 258 reactions | EAST AFRICA: A low-pressure system is...