High tone howl coming from passenger rear tire

I am hearing a high tone howl. I believe it is coming from the passenger rear tire. It doesn't make the howl when I drive short distances( live 2 miles from work). When I drive 20 mins though it will begin to act up(highway and city). It will continue to get louder and more constant after this point. If I stop driving and let the car sit for even a somewhat short 15 mins it will not make that noise unless I drive more than a few miles or so. The noise doesn't always happen when I turn but as it gets worse it will howl when turning. The howl stops when I apply the breaks but will start when I let off of them. Would like to fix the problem myself is possible.

Thank you for your time and expertise, it is greatly appreciated.