Since it was raining or wet when this happened............... That'* happened to me on 2 or 3 occasions when I drove through a large puddle. Its just the water splashing up into the belts and pullies and they screetch till they dry off. Nothing like that has ever happened on dry surfaces to me and nothing on my belts or pullies has been detected as being bad or defective.
If you have a bad bearing or pully I would think you'd get the same noise under dry driving conditions as well. Have you ever had it on those ocassions?
2000 SSEi Arctic White, custom tips, FWI, 3.4 pulley, 180 stat, Intense PCM, K&N filter, solid motor mount, cleared corners and tails, silverstars, painted grilles, XM Radio.
1994 SSEi Gold, completely stock, 252K, love them AL7'*.
2006 G6 GTP Coupe....stock cause the wife said so!