About the Varsom app and Regobs

What is it?

The Varsom mobile app is your source of observations, hazard maps, and warnings of natural hazards.

The app uses Regobs, an open system for sharing observations related to natural hazards worldwide. It also shows hazard maps and warnings (Norway and Svalbard only).


Enable people to share observations of natural hazards online.

Observations on snow (avalanches, weather),  soil (landslides), water (floods and droughts), and ice (lake ice) support natural hazards warning services.


Most users submit and access observations on the Varsom mobile app, but you may also use the regobs.no website or its API.

The app provides access to avalanche, lake ice, flood, and landslide warnings for Norway, as well as relevant hazard maps, such as avalanche terrain, and offline maps for use where there is no cell phone coverage in Norway and Svalbard.

Varsom.no web portal

Varsom.no is designed to be your primary source of warnings and knowledge of natural hazards. It provides access to all warnings from both NVE and MET in Norway and Svalbard, as well as great educational resources (in Norwegian).

How to get started?

Download the app. Get an NVE account.

Skjermbilde av språkinnstillinger og innlogging til Varsom Regobs.

Step 1

Download the Varsom app from App Store or Google Play.

The app provides access to recent observations, current warnings, and offline maps of hazards and topography.

Step 2

To submit your observations, you need to get an NVE account. It is important to do this before leaving the beaten track.

How to get more information?

ISSW paper. Online resources.

Bilde av en mann som tenker på Varsom Regobs mens han er på tur.

Download the app from App Store (iOS) or Google Play (Android)

Read about the system and several use cases in our ISSW2018 paper https://arc.lib.montana.edu/snow-science/objects/ISSW2018_O18.1.pdf.

Read about data and terms of service and about Regobs in Norwegian.

Access observations from your computer using our API or use Regobs.no.

Your first observation?

What to observe? Snow. Avalanche. Weather. Landslide. Water. Lake ice.

Make sure you are logged in the first time, later we will help you stay logged in.

To log in you need an NVE account. 

If you are interested in snow, we recommend turning on the slope angle map  to help recognise avalanche terrain in Norway and Svalbard.

Slope angle and topographic maps are available offline, make sure you download your area of interest before you go.

NB! Offline maps and current warnings are available for Norway and Svalbard only.