UA3ARC spotting me very early on 10m WSPR

Already before breakfast my 500mW 10m WSPR beacon has been spotted several times on Moscow by UA3ARC (2446km) . This could be F2? Most probably Es, I guess.

UPDATE 0834z:  Widespread Es on 10m WSPR early with spots from right across Europe already. On 6m WSPR no Es spotted yet.