Can the Cloud Vaporization formula be used on physical attacks that have no signs of cloud Vaporization?

[M2u12]

I have a question, If 1 Characters can destroy clouds With physical attacks, but But there were no signs of cloud Vaporization.
With a feat like this, Can we still use a formula for Cloud Vaporization? To find the character AP

Cloud Calculations

Due to being virtually always present clouds are one of the most common objects affected by the attacks or powers of characters. As such how to calculate feats involving the creation, destruction or movement of clouds is of common interest. The first step necessary for any cloud calculation is...

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