Toyota Corolla 2002

I went on vacation for two weeks (car sat in driving for the duration). After I came back I noticed that every time I make a right turn I hear this grinding noise. The noise seems to be consistent with the speed (i.e. if my speed is fast then the grinding noise is fast). I thought that it might be due to the car just sitting there for a while and that it would go away with regular driving but in fact the noise seems to have gotten worse. As a side fact, during the two weeks that the car was parked it rained quite a bit.

Any suggestions or ideas on what to look for?

Casey