So I guess you're saying that the morning hunt there will be a transition from falling to rising when the sun pops out. Evening should most likely still be rising. Right?
Yelp, I've seen it happen at different times...usually Quicker on an eastern slope then western slope in the morning and evenings it can shift quicker depending on what side of the slope your on also. An east slope will be quicker then west slope.
Biggest thing is don't confuse wind and thermals two different things. Use the hell out of your wind checker.
I screwed myself last year on a big mulie I waited for him to bed.... Clouds moved in quick that evening and thermals changed. I needed to cover 30 more yards and bamm he stood up and knew I was there. Four days worth of glassing and patterning went poof....all well before dark.