The phrase describes a selected cloud formation. Characterised by rippling patterns resembling fish scales, this atmospheric phenomenon happens when high-altitude cirrocumulus or altocumulus clouds organize themselves in a textured sheet. The looks is commonly indicative of modifications in climate situations.
Observing these cloud formations can present clues about approaching climate methods. Their presence usually precedes a bigger climate disturbance, signaling a shift in atmospheric stability. Traditionally, sailors and climate fans have relied on these visible cues for short-term forecasting, connecting noticed cloud patterns with subsequent modifications in precipitation and wind course. This affiliation stems from the atmospheric dynamics that create these formations, particularly temperature inversions and wind shear at increased altitudes.