I have create a montage of  5 consecutive days of Venus' UV images and it shows a possible reoccurrence of a 'Y' feature stretching from the polar to the equatorial regions during this period. Also, I have added the IR images to see whether if there is any sign of a 'Y' feature in the middle cloud deck. 
So far, I see no correlation between the IR and UV images.

[Frank J Melillo  Holtsville NY U.S.A]