overshooting top

A dome-like protrusion above a thunderstorm anvil, representing a very strong updraftand hence a higher potential for severe weather with that storm. A persistent and/or large overshooting top (anvil dome) often is present on a supercell. A short-lived overshooting top, orone that forms and dissipates in cycles, may indicate the presence of a pulse storm or a cyclic storm. See FigsHP Storm LP Storm supercell