Pass opening dates/Col d'Iseran

Off topic, but it's quiet... I'd like to do this kind of motorbike,
sunny day,
dry road with walls of snow either side thing. I'd always imagined,
that
after the lifts close down in val d'Isere they run a snow plough over
the
top, though as it sometimes snows right through to May/June I guess
it's not really like that. Any ideas on fixed dates for opening the
Col
d'Iseran, or ideas where freshly opened high passes might be the first
couple of weeks in may (within 3 hours of Geneva).

Cheers.
Iain.