A drop in atmospheric pressure.
When its pressure is dropping rapidly means a low pressure rea is approaching with potential stormy weather
Low Pressure Area
low pressure area
No, it is clear and cool weather
Stormy weather often occurs along the boundary between air masses or in association with a low pressure system.
Decreasing pressure
Decreasing pressure indicates stormy weather. Increasing Pressure indicates better weather.
Pressure, on it's own, does not indicate any particular weather. It is the changes in air pressure, along with other factors such as humidity etc which indicates the proposed weather changes.
A millibar is a unit of measuring pressure. Air pressure is one of the basic things you can measure in weather. High pressure (over 1013 millibars at sea level) usually indicates calm, clear weather while low pressure usually indicates stormy weather.
Barometric pressure decrease indicates coming stormy weather, rain, wind, , heat. Barometric pressure rise indicates fair, dry, colder weather. Slow, regular and moderate fall in pressure indicates low pressure area is passing at a distance. Any marked change in weather unlikely. Sudden decrease, even if small, indicates a nearby disturbance; normally bringing wind, and short showers. Large pressure drop signals a coming storm in 5 to 6 hours. Large, slow and sustained decrease indicates a long period of poor weather. Coming weather will be more pronounced if pressure started rising before dropping. Sudden rise of pressure,when the pressure is about average or above average and the weather is fair, indicates approach of a low pressure cell, and the barometer will soon start to come down. Rapid rise when the pressure is low, announces a short period of fair weather. If pressure rise is large and prolonged, count on a many days of good weather ahead.
When its pressure is dropping rapidly means a low pressure rea is approaching with potential stormy weather
low pressure area
Low Pressure Area
Low pressure usually brings stormy weather. The clouds hang over and area for a period of time and then the rain and storm begins.
Falling air pressure is usually an indication that a storm is coming.
low pressure area
No, it is clear and cool weather