How Can I Determine The Actual Wind Direction From a Velocity Image?
To interpret the proper wind direction at any location on the display, follow these steps. 1) Draw a straight line from the radar site (located at the center of the image) to any point along the zero wind speed line (the boundary between the gray and white colors on the display) 2) Draw an arrow perpendicular to the line drawn in Step 1 at the point on the zero wind speed line to which you drew the line in Step 1, the arrow head pointing from inbound velocities to outbound velocities. 3) This arrow represents the wind direction at that point on the display. The true wind speed is represented by the maximum inbound and outbound velocities found on the display at the range your arrow is drawn.
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