17th of March 2015 was the memorial date of aurora hunters. The huge magnetic storm came, that was the most biggest in a decade. Also in Japan, the red color slight northern lights was observed at the north edge in Hokkaido. That time was very exciting day and it was the magical nights in many places of northern part. The magnetic storm, the scale of power is measured by KP-index (more info is here) which range from 0 to 9. At the wonderful night of 17th of March, the KP-index was observed 8.67, almost the maximum power came to the earth. The full power, 17th of March was such special memorial day.
This T-shirt shows the full power of aurora lights dancing in the city center. Regardless of under massive city lights around the Oulu’s main church, the aurora lights are clearly visible and it was the wonderful show. This is the AURORA POWER, under the almost maximum magnetic storm KP index of 8.67.
KP index of 8.67.
Finland aurora alert all red, the value over 1000.