Not quite what was expected

A forecast for a fairly major, G3 disturbance became reality last night, although the peak was fairly short lived:

It's always interesting to note what happens on the north-south circuit during these events.  DP0GVN in Antarctica vanished at 10MHz with the onset of the disturbance, but at peak field deviation, yielded a single spot, only to vanish again until the advancing morning propagation.

Reception of DP0GVN (5W) at 10MHz at MW1CFN.

The effect of the disturbance is also very clear when we plot all received distances of spots against time - a big gap develops for around three hours from around the midnight point.  Indeed, it was only spots from TA4/G8SCU that kept things going at all in this gap, with a couple from SV1DAR, too, both running 5W: