A runny nose. Constant clear and watery nasal discharge from the nose is usually the first complaint. If allergies are the cause of the runny nose then itchiness of the nose and eyes will also be present. A runny nose also commonly results in a stuffy congested feeling in the nose.
by Guest Writer Jenni Worboys. A barometer is a widely used weather instrument that measures atmospheric pressure (also known as air pressure or barometric pressure) - the weight of the air in the atmosphere.
The Weather Hut explains that barometric pressure measures the weight of air in the atmosphere above as a pressure.. Changes in this pressure correspond to changes in weather. Electronic barometers now are available in addition to older-style units that use a needle and dial to track pressure changes.