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What is Weather?

Weather is the day-to-day meteorological conditions that happen in our atmosphere. Weather can change within minutes, which is why it can be difficult to forecast.

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Glossary

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...