What I'm watching re the snow melt:
http://www.nohrsc.noaa.gov/nsa/ Click first on the region ("Central Rockies" for the Winds; then on the second map ("Snow Depth") and click to enlarge. You can check out any place in the US! Note that the whole western US, except New Mexico and Arizona, is having the same problem. The one encouraging thing is that there's less purple (over 98 inches) than there was 2 weeks ago. Peter, in comparison with June 1, it looks as though the mountains of southern Colorado are melting out faster than the rest. At least you won't have to shell out for a nonresident license, which in Wyoming is quite pricey.
The snotel sites are no longer very useful this late--they're showing an abnormally high percentage (like 300+% of average) simply because of the late melt. The snotels in the Winds also are at or lower than the trailheads--the later it gets, the less they reflect what's going on higher up.
http://www.nohrsc.noaa.gov/nsa/ The streamflow data lets you know if the snow is (finally) melting. While the Green River is finally above average, I'm a bit unhappy that Fremont Creek at the inlet to Fremont Lake is below normal, meaning it's not melting up there yet. The Pinedale area is expecting big floods when the snow does melt.
Of course you can call the appropriate USFS ranger station and hope you talk to someone who has been out from behind the desk lately!
I'm beginning to wonder if my early August date won't be too early! My main concern is stream fords. I'm short, with short legs, and the USFS in the Winds builds bridges only if the stream isn't safe for horses to ford in low water. My dog, despite being mostly Labrador, refuses to swim--a traitor to his genetics! He has major separation anxiety when I leave him behind, though, so hopefully that neurosis will win the day! If the big streams (especially Pole Creek) are too high, I'll have to do major backtracking. Nancy Pallister (who wrote the latest guidebook to the Winds) tells me that Pole Creek and Middle Fork Boulder Creek are the most dangerous fords in high water.