Weather Defender Documentation

Page History: Radar Product Layers

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Page Revision: 05/12/2010 2:31 PM



Descriptions & Usage

Descriptions provided by National Climatic Data Center (NCDC).

Base Reflectivity (default)

A display of echo intensity measured in dBZ. This product is used to detect precipitation, evaluate storm structure, locate boundaries and determine hail potential. The 4 lowest elevations angles are available.

Base Velocity

A measure of the radial component of the wind either toward the radar (negative values) or away from the radar (positive values). Negative values are represented by cool colors (green) while positive values are represented by warm colors (red). This product is used to estimate wind speed and direction, locate boundaries, locate severe weather signatures and identify suspected areas of turbulence.

Storm Relative Velocity

When the motion of storms are subtracted from the wind field, the result is a picture of the wind as if the storms were stationary. Color induces are the same as base velocity. Comparing the storm relative motion image with base velocity image helps identify the rotating storm.

Composite Reflectivity

A display of maximum reflectivity for the total volume within the range of the radar. This product is used to reveal the highest reflectivities in all echoes, examine storm structure features and determine intensity of storms.

Vertical Integrated Liquid

The water content of a 2.2 X 2.2 nmi column of air which is color coded and plotted on a 124 nmi map. This product is used as an effective hail indicator, to locate most significant storms and to identify areas of heavy rainfall.

Echo Tops

An image of the echo top heights color coded in user-defined increments. This product is used for a quick estimation of the most intense convection and higher echo tops, as an aid in identification of storm structure features and for pilot briefing purposes.

One Hour Precipitation

A display of estimated one hour precipitation accumulation on a 1.1 X 1.1 nmi grid. This product is used to assess rainfall intensities for flash flood warnings, urban flood statements and special weather statements.

Storm Total Precipitation

A map of estimated storm total precipitation accumulation continuously updated since the last one-hour break. This product is used to locate flood potential over urban or rural areas, estimate total basin runoff and provide rainfall data 24 hours a day.



How To Add To Your Map

The following tutorial explains how to add individual radar products to your map in Weather Defender:

Weather Defender® - Desktop Weather Software for your PC. Weather Satellite, Weather Radar, and Street-Level Weather Tracking.



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