Propagation anomaly, 2018 November 15

Last evening's Norwegian line geomagnetic stackplot looked like this, showing a relatively minor disturbance in the early evening, and some much smaller disturbances later in the morning:

The last that was heard of WJ1I anywhere other than the US was at 21:02UT - except for here at MW1CFN, where a single reception was made at 01:20UT (now reverted to the vertical delta loop antenna):

The fact that only one US station made it across the Atlantic at this time, and that he was not then heard again, shows there must be very localised and extremely transient propagation changes related to the passing of the auroral oval at mid-Atlantic longitudes.  Again, the anomalous spot comes at the time of field restoration.