Yes, storm is a Scrabble word!

Verb

1. Behave violently, as if in state of a great anger

2. Take by force

3. Rain, hail, or snow hard and be very windy, often with thunder or lightning

4. Blow hard

5. Attack by storm; attack suddenly

Noun

1. A violent weather condition with winds 64-72 knots (11 on the Beaufort scale) and precipitation and thunder and lightning

2. A violent commotion or disturbance

3. A direct and violent assault on a stronghold