Clearcast procs being used during blizzard ticks

Just noticed that when i recieve a clearcast proc while in a middle of a blizzard, the blizzard ticks will use up the clearcast proc and i cant recast blizzard for the free mana cast? this intentional?

Might have to go to the classic forums for that.

As far as I know, this is working as intended. Each ‘tick’ of Blizzard for the purpose of procs sort of acts as its own spell, which is why they each have a chance to proc CC, BF and FoF but will also consume CC/FoF procs on the next tick. It’s not ideal, but it sort of works itself out at the end of the day and unlike TBC where 3 Blizzard casts would oom you the downtime of AoE farming in Wrath is much much lower.