![]() This allows Doppler radars to identify severe weather. A Doppler radar receiver “hears” waves of a higher frequency if precipitation particles are moving toward the radar and a lower frequency if particles are moving away. Raindrops rarely if ever exist in plentiful enough quantities to produce dBZ values >60 so the culprit is usually hail.Uniquely Doppler radar can measure wind speed in precipitating regions. Hail cores- if you see dBZ values exceeding 60, watch for large hail.Watch for strong winds along the leading edge of this! Bow echoes- when a storm looks like a bow (as in bow-and-arrow), it signals a strong push of cold outflow near the surface.During severe weather situations, reflectivity signatures can provide valuable clues as to what threats to expect from a particular cell. ![]()
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