OTOH the sky is pretty darn spectacular tonight!
Try six meters, it might surprise you!
Dear propagation experts: I activated (G/SP-007) on 10m CW for 12 minutes at 1250UTC yesterday and worked US (NY, VA & GA) and EU (Greece, Spain, Poland and, er, Oldham and Clitheroe). Does a step function increase in the Kp index (like that 1 to 8) affect RF propagation immediately or is there a time delay (to ‘warm up’ the ionospheric electrons)? And would that very high Kp affect all the HF bands equally or more the lower (HF) ones?
The chart shows the strongest observed effect in a 3hr window. So the 1200-1500 period could have had a K index of 0-1 until the last few minutes of the window. At 1250, the storm may not have started yet.
For this reason I use this slightly modified index from the GFZ German Research Centre for Geosciences in Potsdam.
Just after local midnight here the aurora was so bright that it was lighting up the patchy clouds like a sunset…