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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

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

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

A very cold high pressure that originates over the Arctic Ocean.

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

The branch of science dealing with the laws of motion of air or other gases.

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.