The institute provides the public with meteorological services for both civil and military purposes.
Duties of the Norwegian Meteorological Institute include:

- issuing weather forecasts
- studying the national climatological conditions and produce climatological reports
- providing meteorological observations from Norway, adjacent sea areas, and from the Svalbard area
- carrying out research and development in support of the institute's operational functions to ensure that the services are of the highest possible standard

See also this address: http://www.yr.no