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View detailed 15-day forecasts for any location on Earth in OpenSnow.

Getting Started

  1. Go to any location screen.
  2. Scroll down under "Weather" or "Snow Summary".
  3. View 15-day forecasts.
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Weather Models

To extend our forecasts out to 11-15 days, we now process data from additional models.

This ensures that we present a multi-model approach and that you are not misled by the extended forecast from a single model:

  • European AI (AIFS Ensemble): 25km resolution.
  • American AI (GFS Graphcast): 25 km resolution.
  • American Ensemble (GEFS): 50km resolution.
Weather forecasts on OpenSnow also include the following weather model data, with the American (GFS) and European (ECMWF) models providing forecast data out to 15 days.

  • American (GFS): 13 km resolution.
  • American Blend (NBM): 2.5 km resolution.
  • American Hi-Res (HRRR): 3 km resolution.
  • Canadian (GDPS): 15 km resolution.
  • Canadian (RDPS): 10 km resolution.
  • Canadian Hi-Res (HRDPS): 2.5 km resolution.
  • European (ECMWF): 25 km resolution.
  • European AI (AIFS): 25 km resolution
  • German (ICON): 13 km resolution.
  • German EU (ICON-EU): 7 km resolution.
  • German D2 (ICON-D2): 2 km resolution.
Not all models are available for all weather variables or all geographies.

Benefits

The benefits of this multi-model approach include:

  • Increased forecast accuracy and confidence from blending multiple global and high-resolution.

  • Reduced the likelihood that you will make a decision based solely on a single forecast from a single model.

  • Improved specificity by adjusting model forecast data for mountain environments, including data such as the snow-to-liquid ratio, precipitation, temperature, and wind speed.

  • The ability to calculate the snow level (elevation that separates rain from snow) to provide a more realistic forecast, especially at the beginning of storms and during times of intense snowfall.

  • The ability to create a forecast for any location (and elevation) to ensure that we are forecasting conditions on the mountain and not for a nearby town.