You could get a cloudy gusty ride at Grantsville on 8M sails, but with the direction NNW
it just won't be very good out there. Sulfur would require 9M sails under cloudy skies, also not great.
Maybe a good day for a mountain bike as the air temps fall to the mid 95s (gasp).
Tomorrow, clouds clear a little, and Sulfur should have planable conditions in the 7M sail range PM.
Friday, Sulfur may yet again be the only possibility.
-Craig