A reminder that this is the best time of year in the northern hemisphere for this kind of propagation. It frequently affects 10m and 6m, sometimes 4m and Band II FM and occasionally 2m and even higher on VHF. Signals can be very strong.
It is not unheard of for Es to link with other modes meaning far greater distances are possible. I am also a believer in chordal hop E layer propagation, which I believe is responsible for some, not all. very long paths.
See https://www.tvcomm.co.uk/g7izu/radio-propagation-maps/europe-sporadic-e/ .
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