About

Global models


ECMWF (European Centre for Medium-Range Weather Forecasts)

Resolution: various (40 km in BrightEarth)

Forecast depth: 10 days

Step: 3 hours

Updates frequency: 2 times/day

The ECMWF is a European global forecast seamless model and it is widely regarded as the best and most reliable model currently in existence. It uses a concept called 4D, which is an assimilation that allows the model to be constantly updated as new satellite or other input data becomes available. It is a well-known fact that the ECMWF was the only model that accurately predicted where Hurricane Sandy was moving. Check forecast here

GFS (The Global Forecast System)

Resolution: 27 km

Forecast depth: 10 days

Step: 1 hour

Updates frequency: 4 times/day

The GFS is the most well-known global weather model and it’s updated every six hours by the American meteorological service. It is actually made up of 4 separate models which work together to paint an accurate picture of weather conditions: atmospheric, ocean, land/soil and sea ice models. However, it doesn’t take topography and shapes of coastlines into account, so it isn’t very accurate for places next to bodies of water. Good for oceans.Check forecast here

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