On 21st of December 2016 local K-index was 8 (with 9 as theoretical maximum) with severe aurora. Strange things happened. Sort of sporadic E (or maybe sporadic F) was formed by the strong radiation. So had a QSO with W9YXX in Indiana on 20, late in the evening with 599 signals. Normally the band closes early. At such occasions the propagation is very patchy. I got a 31 dB RBN spot from WZ7I and a 27 dB spot from K3LR. No spot from anyone else in Europe or anywhere. I was the only EU station heard at his end he was the only station heard here except for C91PA who was 59 on 20, SSB. The noise was virtually zero with the needle stuck at the bottom stop.
Part of the QSO with W9YXX:
So great fun in spite of non-existing normal propagation