What is Crepuscular Rays?

Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric molecules and particles. Contrast is enriched by dry smoke, dust, and fog. If a cumulus-type cloud comes between the observer and the sun in the afternoon, there is a high chance of seeing these rays. The same phenomenon occurs when sunlight is refracted by a cloud layer.

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Glossary

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

The term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...

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

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

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

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.

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