Weather Models
The weather depends on lots of different factors: wind speed, cloudiness, pressure, and others. All of them can be represented in meters per second, millimeters of mercury, and similar.
A mathematical weather model is a combination of all these factors. Windy.app features forecasts from different weather models.
Compare Mode allows you to compare data from all the models on one graph, including wind and precipitation forecasts separately.
A mathematical weather model is a combination of all these factors. Windy.app features forecasts from different weather models.
Compare Mode allows you to compare data from all the models on one graph, including wind and precipitation forecasts separately.
Weather models used in Windy.app
A global model by the European Centre for Medium-Range Weather Forecasts. Considered the best for precipitation and cloudiness. Resolution — 14 km. Updates every 12 hours, providing forecasts for 10 days.
A global model by the European Centre for Medium-Range Weather Forecasts. It is precise data for more than a 3-day forecast. Resolution is 27 km. Updates one a day, forecast for 10 days. Learn what is Ensemble principle and how it works.
The US Global Forecast System, originally created for aviation. Updated 4 times a day, providing forecasts for 10 days.
While the GFS27 interpolates data for every dot within a 27 km x 27 km square, the GFS+ always shows only the maximum result in each square. Updates 4 times a day, forecasting for 10 days.
A global model by Deutscher Wetterdienst (German Meteorological Service). For Europe, higher resolution (7 km) is available for the ICON model, making it even more precise than the ECMWF. The ICON with a 13 km resolution is the global version available worldwide.
- ICON7 — updates 4 times a day, every 6 hours. Provides forecasts for the next 5 days.
- ICON13 — updates 8 times a day, every 3 hours. Provides forecasts for the next 5 days.
Developed specifically for North America, provides the most precise forecast for the region. Resolution — 12 km. The forecast is updated 2 times a day. Provides forecasts for the next 61 hours.
A regional weather model by the National Oceanic and Atmospheric Administration (NOAA) of the US. HRRR is High Resolution Rapid Refresh. It provides a great forecast for the continental US based on the radars' data — the unique advantage of HRRR. Resolution is 3 km (1.9 m). Updates 18 times a day, forecast for 2 days.
The WRF is a model for weather forecast calculation developed by several scientific laboratories in different countries. Using it, Windy.app calculates a hyperlocal forecast for Europe and the Mediterranean. Updates once a day, giving forecasts for the next 3 days.
A local model developed at the University of Athens. Considered one of the best for the Mediterranean. Resolution — 12 km. Updated once a day, providing forecasts for the next 5 days.
A local model for the Mediterranean. Based on the WRF technology, adapted by the University of Athens and a group of enthusiasts. Resolution — 12 km. Updated 4 times a day, giving forecasts for the next 4 days.
A local model developed by Meteo France (French meteorological service). Covers France and some adjacent regions. Resolution — 1.25 km. It is updated 8 times a day and provides forecasts for the next 42 hours.