major disaster is a charter memeber of the JLA. he is no longer an enemy. he wins easily cuz whatever he thinks happens, he's like Jinx from the frightful four. like for example in JLA "terms of endearment" when the govt was trying to storm a compund he willed all the axles on thier vehicles to rust and their weapons to malfunction. antoher time when he went with the JLa on a plaent he destryoed the alien's weapons the same way plus he threatend to have some metoers fall on them and blow the place up. hell if he wants to he could just will all of them to have cancer or AIDS or something and it would happen
MD can do anything as long as its a disaster by ordinary standards. be it earthquakes or snow storms or whatever .so he doesnt have control over the weather per se but he can cuase all sorts of geological disruptions. and that what he ususally does cuz thats what cuases the most damage like earthquakes and tornadoes, but like ive said he has threatened an alien civilization with raining down orbiting meteors on them and that doesnt have anything to do with the waether. plus he has cuased machinery to malfunction just by willing so.
so im thinking he wills storm's uniform to dry rot and fall apart and him and WW just enjoy the show and make all sorts of demeaning cat calls and make her feel uncomfortable and ashamed and fly off crying馃槅