A couple of our observers have emailed about this event. Seems too soon to tell how bad the effects will be, but it certainly looks like another tough, tough problem for this already-troubled species.
The Daily Kos reports here seem the most current and are being updated:
Daily Kos, March 10-12 (with updates and photos)
Journey North also has a report on its website:
There are other reports on-line. Let me know if you see one that offers more/different information than the two above, and I will post.
One small consolation (maybe?) is that similar events have happened in the past. Here’s a report from 2001-2002:
Monarch Lab U of MN, Jan 1, 2002
jc