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FORECAST
Tromsø is the crown jewel of aurora-watching in Norway. Nestled in the Arctic Circle, this charming town is like the Venice of the North, if Venice had fjords and Vikings. The indigenous Sámi people, who have called this region home for thousands of years, believed the Northern Lights were the spirits of their ancestors dancing across the sky.
You are currently viewing the aurora forecast live-data dashboard for Tromsø, Norway
View the Aurora Geek data for your location.
Welcome to the Aurora Geek data dashboard! Here we try to put every piece of aurora forecast data relevant to the current availability as we can. You'll find the information here is as real-time as possible. If enabled, this page uses geo location capabilities of your browser or mobile device to make the content of this page more relevant for you, where you are.
The Hemispheric Power Index (HPI) is a measure of the total power in gigawatts (GW) being deposited into the Earth's upper atmosphere by charged particles from the solar wind, specifically in the auroral regions. It is derived from satellite observations of the auroral oval and gives an estimate of the energy available to produce auroras in each hemisphere.
What to look for? Keep an eye out for higher values. Above 20GW aurora borealis can be visible to the naked eye in nothern areas where aurora is common. Getting above 50GW and the lights will be more visible further south and above 100GW and it's party time.