Here is the full list of all 10 Storm trophies - there are 7 bronze, 1 silver and 2 gold.
Finished the autumn season
Created 30 tornadoes
Finished the summer season
Burned 20 grasses
Finished the spring season
Used bubbled 20 times
Finished the winter season
Saved a third of the Spirits
Saved two third of the Spirits
Saved all Spirits