The service is available for consumption for operational usage at this endpoint. Note that the user must set the apikey into the url at place APIKEY
Url
https://data.fmi.fi/fmi-apikey/APIKEY/download?producer=diw×tep=data¶m=ProbabilityOfDIW0,ProbabilityOfDIW1,ProbabilityOfDIW2,ProbabilityOfDIW3&format=GRIB2