What is Cumulus?

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds under the right conditions.

Glossary

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)...

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

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

A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

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

Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...

A type of cloud consisting mostly of small particles such as ice particles.

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