Catawba rhododendron bushes can reach a height of 6'-8' with a spread of 4'-6'. Displays are most effective when rhododendron bushes are massed together. These are poisonous plants -- do not allow children to ingest any of the azaleas or rhododendrons.
Best Answer: Tornadoes are caused by winds. When a tornado forms the wind pressure around the tornado drops and that's what you see on the barometer, the pressure goes down.
Air circulations within the storm combined with a strong updraft contribute to tornado formation. Under the rain-free base of a supercell, look for a wall cloud to form. Out of this lowered area is where you are likely to see a tornado. But if you ever find yourself near a storm like this, watch out.