User's Guide

Table Of Contents
composite shear (25F): Shows the maximum value of shear located in the storm within
the first four scanning level. B
corrected radial velocity (31B): This product displays the velocity, which is result of
correcting the radial velocity for various errors, including second-trip echoes and range
folding. This product is also known as corrected base velocity. B
corrected storm relative velocity (31C): This product displays the velocity, which is
the result of correcting the storm relative velocity for various errors, including second-trip
echoes and range folding. B
echo tops (29): Indicates the highest level that the radar is receiving a return of at least 18
dBZ. N
echo tops 1K (129): The echo tops product converted to 1 km by 1 km format. B
layer 1 composite (41): Displays the greatest reflectivity in a vertical column between
the surface and 24,000 feet (from mean sea level). N
layer 2 composite (42): Displays the greatest reflectivity in a vertical column between
24,000 feet to 33,000 feet (from mean sea level). N
layer 3 composite (5A): Displays the greatest reflectivity in a vertical column between
33,000 feet to 60,000 feet (from mean sea level). N
maximum reflectivity 1K (226): Shows the greatest reflectivity measured within the first
four radar scanning levels, and is converted to 1 km by 1 km resolution. B
maximum shear 1K (25F): Shows the maximum value of shear located in the storm
within the first four scanning levels, and is converted to 1 km by 1 km resolution. B
radial velocity (1B): The average velocity of targets (i.e. rain droplets, etc.) moving
towards or away from the radar beam. Radial velocity is displayed as either positive (moving
away from the radar) or negative (moving towards the radar). Generally, the positive values
are displayed in warm colors, while negative values are indicated by cool colors. Note:
Radial velocities are only available for the first four elevation scans of the volume. This
product is also known as base velocity. N
radial velocity 1K (11B): This is the radial velocity product converted to a 1km by 1km
pixel format. B
radial velocity shear (5F): The change in radial velocity per unit distance along a radial.
Note: Basically, shear is defined as the change or variation in velocity over a specified
distance. This product is also known as base velocity shear. B
radial velocity shear 1K (15F): The radial velocity shear product converted to 1 km by
1 km resolution. B
rain rate (266): The rate of rainfall or rainfall intensity as estimated by NEXRAD over one
hour. N