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Zoom in and view WSR-88D Level 2 base radar reflectivity and velocity data from NOAA. You can also create animations, measure distances, and access other weather models and satellite data.
Learn how to interpret radar data for precipitation, storms, and other features in the atmosphere. See high resolution images of US radar locations with archive back to 1991.
21 sie 2024 · NEXRAD is a network of 160 high-resolution S-band Doppler weather radars that detect precipitation and wind. NCEI provides access to archived NEXRAD Level-II data, which include mean radial velocity, and Level-III products, such as radar images and messages.
Base Radial Velocity. This is the velocity of the precipitation either toward or away from the radar (in a radial direction). No information about the strength of the precipitation is given.
10 sie 2023 · Base Velocity. Unlike reflectivity, there is no composite velocity product. The radar produces a velocity product for each elevation angle that is scanned. In addition, it computes a “storm relative velocity” product. We’ll look at both of these and identify when we should use one over the other.
Learn the fundamentals of radar and how to view base reflectivity and base velocity to see more than rain and wind. This guide covers topics such as beam spreading, bright banding, purple haze, range folding, anomalous propagation, and more.
Base velocity is derived by evaluating the 'doppler shift' of the returned signal. If the target object is moving, the component of that target's velocity that is parallel to the radar beam will result in a phase shift of the return.
