I love that picture Alex- that was a great day. Hopefully to be repeated in a few weeks.
The most impressive part of that graph is the comparison to 2008 (teal line) when it ran medium-high for a month and a half. Its going to get rowdy in there this year, so lets try to keep this business to a minimum:
My guess on when it will go: weekend of the 17-18th is possible; weekend of 24-25th is highly likely. It will not run until it hits 75-80 degrees in Delta. 60 in Moab will not do it. Robideau barometer should be 500+.