Aurora forecast is based on planetary kp-index from ACE satellite and cloudiness data from a weather service.
Remember that the aurora forecast should be used only as a guideline and it is not reliable enough to be used as a alert mechanism.
Northern Lights Alert app alerts you when the becomes visible!
Our aurora alerts are based on real-time sensor observations.
We are the only aurora service which uses a network of aurora sensors located around Finnish Lapland.
