Real time Aurora Oval measured by satellites. From NOAA Space Weather Prediction Center.
Predicted indices shown below are derived solely based on the solar wind data using models developed through Artificial Neural Networks using the Boyle Index as a base function. The vertical green lines indicate the most recent value. Kp=0 means a very quiet period while Kp=9 means extremely severe activity.
[Courtesy: NASA Magnetospheric Multiscale Mission]
This graph shows last seven days K-indices in Tromsø area.
This graph shows current month magnetogram readings from Tromsø.