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| | | #REDIRECT [[Bow echo]] |
| #REDIRECT [[bow echo]] | |
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| == bow echo ==
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| <div class="definition"><div class="short_definition">A bow-shaped line of convective cells that is often associated with swaths of damaging [[straight-line winds]] and small [[tornadoes]].</div><br/> <div class="paragraph">Key structural features include an intense [[rear-inflow jet]] impinging on the core of the bow, with [[book-end]] or [[line-end vortices]] on both sides of the rear-inflow jet, behind the ends of the bowed convective segment. Bow echoes have been observed with scales between 20 and 200 km, and often have lifetimes between 3 and 6 h. At early stages in their evolution, both [[cyclonic]] and [[anticyclonic]] book-end vortices tend to be of similar strength, but later in the evolution, the northern cyclonic vortex often dominates, giving the convective system a comma-shaped appearance.</div><br/> </div>
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| [[Category:Terms_B]]
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