Oklahoma Climatological Survey
Overview

DESCRIPTION: Like Base Reflectivity, Base Velocity is a base product measured by the radar. Base Velocity is the average radial velocity of the targets in the radar beam at a given location. Radial velocity is the component of the target's motion that is along the direction of the radar beam. Positive values (warm colors) denote out-bound velocities that are directed away from the radar. Negative values (cool colors) are in-bound velocities that are directed towards the radar.

GENERAL INTERPRETATION:


Radial vs Actual Velocity

USING BASE VELOCITY IN SEVERE WEATHER:

Mesocyclone Example

OK-FIRST
More

NIDS Product Suite

Base Velocity (BVEL)


Base Reflectivity (BREF)

Composite Reflectivity (CREF)

Layer Composite Reflectivity (LCREF)

Rainfall Accumulation (RAIN)

Echo Tops (ECHO)

Storm-Relative Radial Velocity (SRVEL)

Vertically Integrated Liquid (VIL)

VAD Wind Profile (VAD)


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OK-FIRST Project, Oklahoma Climatological Survey, 100 East Boyd Street, Suite 1210, Norman, OK 73019.
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Send comments or questions concerning OK-FIRST to dmorris@ou.edu