Weather
The precise forecast for your summit – combined from several models.
Precipitation probability
The height of the bars is the probability of precipitation, hour by hour, from the ensembles of the models. It puts the amounts below into context: the same centimetres weigh differently under a tall bar than under a short one.
Snow line
The bars show what falls at the summit: turquoise for snow, blue for rain, two colours when both fall. Below them stand the snow line and the familiar freezing level. The snow line sits lower, because falling precipitation cools on the way.
Wind and cold
Gusts
The mean wind above, the strongest gust in brackets. The colour follows the gust: orange from 60 km/h, red from 80. Which air layer counts depends on the summit height.
Temperature
The curve shows the temperature at the summit hour by hour, averaged over the models. Red above zero, turquoise below. The numbers give the warmest value of the day and the coldest of the night.
Snow and thunderstorms
Fresh snow
The amount applies to the height of your summit. The models’ grid points often lie hundreds of metres lower — it rains there while it snows up top.
Thunderstorm risk
Five quantities, one bar: the higher the purple bar, the greater the risk of a thunderstorm. It appears from elevated risk, one per time window. A guide to the time window for summit and ridge.
Warnings and outlook
Weather warnings
Above the forecast stand the official warnings of the national weather services, for exactly the warning area your location falls into.
Ten-day forecast
For the longer view, four six-hour blocks a day. From day three the global models weigh more, from day six they carry the forecast alone.
Where the numbers come from
Weather models
Six models: three regional ones at 2.2 to 6.5 km resolution and three global ones at 13 to 25 km. The regional models capture valleys and ridges in fine detail, the global ones reach further into the future. Together they carry the forecast across all ten days.
In the app you switch each model on and off individually, and the numbers follow your selection.
- ICON D2
- DWD · 2.2 km · 48 hours
- ICON EU
- DWD · 6.5 km · 5 days
- AROME
- Météo-France · 2.5 km · 48 hours
- ECMWF IFS
- ECMWF · 25 km · 10 days
- AIFS
- ECMWF · 25 km · 10 days
- GFS
- NOAA · 13 km · 10 days
Weather stations
Current measurements come with the forecast: stations above 800 m from 19 networks across the Alpine region. The nearest one sits in the app directly below the forecast.
- 🇨🇭 Switzerland
- SLF IMIS · MeteoSwiss
- 🇦🇹 Austria
- GeoSphere Austria · avalanche warning services
- 🇩🇪 Germany
- DWD · Bavarian Avalanche Warning Service
- 🇮🇹 Italy
- Bolzano · Trento · Piedmont · Lombardy · Veneto · Aosta Valley · FVG · Liguria
- 🇫🇷 France
- Météo-France
- 🇸🇮 Slovenia
- ARSO
Tap a station on the map to see its measurements and the last seven days: precipitation, snow depth, wind and temperature.
