yup today I tested it several different ways.
pretty much as soon as i hit 90mph it starts blowing hard even if its on low.
Doesnt matter if i just turned on the a/c or if its been on a while.
For me it seems to be more related to my driving speed then temperature. Yesterday it happend again when i hit 85mph+. Temperature outside was around 75f. I had only been driving like 10 mins.