Bounded Weak Echo Region (BWER)(Also known as a vault.) Radar signature within a
thunderstorm characterized by a local minimum in radar reflectivity at low levels which extends
upward into, and is surrounded by, higher reflectivities aloft. This feature is associated with
a strong updraft and is almost always found in the inflow region of a thunderstorm. It cannot be seen
visually.Weak Echo Region(Abbrev. WER) - A WSR-88D radar product which displays reflectivity for up to 8 elevation angles for a radar operator selected location as a set presentation of a storm. The plains in this product are presented in an ascending order, lowest plain is lowest elevation angle selected. It is used to depict storm tilt and to identify Weak Echo Regions (WER) and Bounded Weak Echo Regions (BWER) in thunderstorms.
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