How Does It Work?
I live in a part of the world where weather reporting stations are widely scattered, often 200 or 300 miles apart. How does Windy determine the windspeed for a specific location, and how does Windy know that the winds speeds are markedly different for locations only 10 or 20 miles apart?
Yves70 Meteorologist | Premium last edited by
Windspeed is not determined by Windy but by the model you use in the application : GFS, IFS (ECMWF),... Calculation of the speed and the gust is linked to the model
Thank you. So the wind speed graphic on the map is determined by some mathematical algorithm? Not sure what parameters are used to define wind speeds and directions for two places only a few tens of miles apart, in the middle of nowhere.
I thought maybe some fancy, doppler-equipped satellite could somehow read ground windspeeds from orbit. Wrong - I guess!
Still not clear on the process.
Korina Administrator last edited by
@Kugluktuk Hello, you can check the documentation for ECMWF model - https://www.ecmwf.int/en/forecasts/documentation-and-support/medium-range-forecasts
Obviously the weather prediction is not based on 2 weather stations observations. Find here how NWP works:
Initialization of weather models needs thousands of data and the main part of them are made by weather satellites.