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

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Here's a loop of high temperature forecasts across the lower 48 over the next 6 days. Troughing in the West will keep things cooler than normal, while ridging in the central/eastern thirds of the country will keep support above average temperatures. | NOAA NWS Weather Prediction Center

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