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.
EFFECT ON ALTIMETERS Pressure usually falls rapidly with the approach of a thunderstorm, then rises sharply with the onÂ­set of the first gust and arrival of the cold downÂ­draft and heavy rain showers, falling back to norÂ­mal as the storm moves on. This cycle of pressure change may occur in 15 minutes.