Is there an addon that shows when to perform actions in 5mans?

For example, in Utgarde Keep there is a debuff that causes you to walk on ice that causes damage. Is there an addon that throws a warning when you get that debuff? I find it hard to see as a rogue standing in packs of mobs.

I downloaded the weakauras addon last night but I haven't tested it yet to see if it does anything in 5man dungeons.