As yet (1525z) no sign of spots from the USA but FR1GZ (9724km) has spotted my 500mW 10m WSPR several times this afternoon. If this is another "poor" day, then I am happy.
UPDATE 1934z: Still no sign of any USA 10m WSPR spots of my 500mW WSPR beacon today. Plenty of spots from EA8BVP and FR1GZ but absolutely nothing from the USA. I think we were lucky having propagation across the North Atlantic for the last 3 days. I guess the band could still open to the USA but this is pretty unlikely now.