Alerts are based on aurora camera observations.
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 an alert mechanism.
Northern Lights Alert app alerts you when the becomes visible!
Our aurora alerts are based on real-time aurora camera observations.
We are the only aurora service which uses a network of aurora cameras located around Finnish Lapland.