Transverse Rolls
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- Elongated low-level clouds, arranged in parallel bands and aligned parallel to the low-level winds but perpendicular to the mid-level flow. Transverse rolls are one type of transverse band, and often indicate an environment favorable for the subsequent development of supercells. Since they are aligned parallel to the low-level inflow, they may point toward the region most likely for later storm development.
NOAA National Weather Service - Cite This Source - This Definition - Beaver(\'s) Tail, Billow Cloud, Feeder Bands, Inflow Bands, Inflow Stinger, Morning Glory, Stratocumulus, T Rolls, Tail Cloud, Transverse Bands