This has been one of the most consistent long lasting tropo events I've seen here in a long time.
Of course, the tropo goes away late morning and doesn't get going again until late evening but that's how it usually is with only a couple exceptions I've seen.
It was so much better with analog TV, though.
I remember during these events, the local stations would have lines or bars running across the screen and they would somethimes run a message across the bottom of the screen saying "Atmospheric conditions beyond our control are causing interference with your picture."
The good old days.
I guess that was one of the reasons they decided to switch to digital but for DXers, there was nothing like analog.