a "Sundog," happens when ice crystals appear in clouds and refract the sun's rays.

a "Sundog," happens when ice crystals appear in clouds and refract the sun's rays.

Lenticular clouds (Altocumulus lenticularis) are stationary lens-shaped clouds that form at high altitudes, normally in perpendicular alignment to the wind direction. Lenticular clouds can be separated into altocumulus standing lenticularis (ACSL), stratocumulus standing lenticular (SCSL), and cirrocumulus standing lenticular (CCSL). Due to their shape, they have been offered as an explanation for some Unidentified Flying Object (UFO) sightings. Although these are one of the rarest cloud…

Lenticular clouds (Altocumulus lenticularis) are stationary lens-shaped clouds that form at high altitudes, normally in perpendicular alignment to the wind direction. Lenticular clouds can be separated into altocumulus standing lenticularis (ACSL), stratocumulus standing lenticular (SCSL), and cirrocumulus standing lenticular (CCSL). Due to their shape, they have been offered as an explanation for some Unidentified Flying Object (UFO) sightings. Although these are one of the rarest cloud…

Good god, clouds are awesome. Lenticular clouds are stationary lens-shaped clouds that form at high altitudes, normally aligned at right-angles to the wind direction. They can be alto-, strato- or cirrocumulus standing lenticular. (I think these are CCSL). Where stable moist air flows over a mountain or a range of mountains, a series of large-scale standing waves may form on the downwind side (like our Chinook winds.) Then, if the temp is below the dew point: magic! Lenticular clouds! (or…

Good god, clouds are awesome. Lenticular clouds are stationary lens-shaped clouds that form at high altitudes, normally aligned at right-angles to the wind direction. They can be alto-, strato- or cirrocumulus standing lenticular. (I think these are CCSL). Where stable moist air flows over a mountain or a range of mountains, a series of large-scale standing waves may form on the downwind side (like our Chinook winds.) Then, if the temp is below the dew point: magic! Lenticular clouds! (or…

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