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

This is how the GFS model predicts #Dorian will move through the week. | The Weather Channel

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

EAST AFRICA: A low-pressure system is forecast to develop over the Indian Ocean, south of India, and another over the Arabian Sea between October 15th and 16th, according to the Global Forecast System (GFS) model. These systems are expected to strengthen to tropical cyclones 🌀 and move towards northern Somalia and northern Madagascar, potentially blocking cooler southeasterly winds from subtropical highs and the Indian Monsoon. This could lead to warm, moist air penetrating Kenya, Somalia, and