Measures the air pressure
A warm air mass is sandwiched between two colder or cooler air masses. Creating days of unstable weather.
A Vortex of spinning air which has come down from the cloud and is making contact with the ground
Massively destructive Hurricane Katrina ready to strike Louisiana and Mississippi
Storm cloud (Cumulonimbus)
Cooler dry air pushes warm moist air out of the way to create winds and thunderstorms
Neither the cold air mass or the warm air mass is strong enough to push the other one out of the area. Thus they just sit there fighting each other
A twisting vortex of air that has yet to hit the ground.
Warm moist air is unable to push cooler dry air and is then forced over the top of the cooler air
A device to measure relative humidity is called a hygrometer. Hygrometer
