Wind whistle from front windsheild

[kenora]

I was cruising around the perimeter highway last night at about 90 kph (55 mph) and noticed a steady whistle coming from the front window. There was a small headwind so my "airspeed" would be closer to 100 kph (60 mph).

I have only had the 5 door for a month or so and don't do a lot of highway driving but WTF, it was loud and annoying enough to make me very unhappy and surely the speed I was going can't be enough to cause some weird whistle can it?

I searched before I posted and couldn't find any answers so I was wondering if this is a common issue or unique to my little white hamster.

btw the noise goes away at about 80 kph and my factory stereo needs to be at 40 or higher to drown out the whistle.