New obnoxious road noise after storing tires

[Bavarian_6shot]

I swapped out my 17" w/ Bridgestones for my 19's w/ kuhmos.

Left the 17"s stacked in the garage for two months. Until last weekend, I had a long drive so I reinstalled the 17"s on my car. Well, now I have obnoxious road noise and slight vibration. The tires look fine, have 30psi and all. :shifty It sounds like a monster truck under 20mph.

Wheel bearings?

[jfrankE21]

Your tires are probably out of round as a result of the storage. They may go back to normal after you put some miles on them. Check to be sure you haven't lost any wheel weights.

[UnitedBimmer]

sounds like minor flat spotting due to storage like frank said... you can bump up the pressure and drive it off... it will round back up eventually...

[turbopezz]

fill them up with more air and they will probaly round out again.
if it was a wheel bearing you would have heard the noise with the 19'' wheels as well.