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.
Best Answer: Barometric readings show what the barometric pressure or air pressure is. Air pressure is the force exerted on you by the weight of tiny particles of air. Barometers are used to measure the current air pressure at a particular location in inches of mercury or in millibars (mb). A measurement of 29.92 inches of mercury is equivalent to 1013.25 millibars. Air pressure can tell us about what kind of weather to expect as well. If a high pressure system is on its way, often you can expect cooler temperatures and clear skies.