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Residents of La Castellana in Negros Occidental were amazed at the unusual cloud floating above Kanlaon Volcano last Friday. An orange-greyish cloud was seen above the volcano at twilight. YouScooper ...

Lenticular cloud over Kanlaon Volcano, May 23, 2025. Photo taken in Barangay Masulog, La Castellana, Negros Occidental.

Puffy to wispy, barely there or dark and menacing, clouds come in many shapes and sizes. Each tells a story about what’s going on in the atmosphere.

Lenticular clouds are a visible sign of mountain waves in the air, according to the Met Office. However, these waves can be present beyond the clouds and may exist even when no clouds are formed.

Pilots of powered aircraft tend to avoid flying near lenticular clouds because of the turbulence associated with them. Skilled glider pilots like them because they can tell from the shape of the ...

Lenticular clouds are a visible sign of mountain waves in the air, according to the Met Office. However, these waves can be present beyond the clouds and may exist even when no clouds are formed. The ...