How to choose which weather parameter to display on the map?

By default, when you display an atmospheric GRIB file on the map, wind is shown (barbs or particles, with the colour gradient). But your GRIB file contains many other parameters: precipitation, cloud cover, temperature, pressure, gusts, CAPE, etc.

To change the parameter displayed as a colour overlay on the map:

1. Tap the Layers button (layers icon at the bottom right of the screen).
2. In the panel that opens, find the Forecast display section.
3. Tap the dropdown menu (showing "Wind" by default) to see the full list of available parameters:
   • Wind
   • Gust
   • Delta Gust
   • Pressure
   • Temperature
   • Precipitations
   • Cloud cover
   • CAPE
4. Select the desired parameter (e.g. "Precipitations" or "Cloud cover"): the map updates immediately with the corresponding colour gradient.

Tip: once the parameter is selected, use the timeline bar at the bottom of the screen to scroll through hours and see how precipitation, cloud cover or any other parameter evolves over the entire area covered by your GRIB file.

Note: the same principle applies to other types of GRIB files (waves, currents): the dropdown automatically adapts and offers the corresponding parameters (wave height, direction, period, etc.).

The parameters available in the dropdown depend on the data contained in your GRIB file. If you do not see "Precipitations" or "Cloud cover" in the list, make sure you ticked those parameters when downloading the GRIB file.