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METEOROLOGY FLIGHT PLANNING
CHAPTER TWO
Figure 2-8 Radar Summary Chart
Graphic Display
Rather than plotting each echo on the chart, the computer will outline and shade areas where
echoes were observed. When echoes can be identified as forming into an apparent line, the
computer will indicate this as a solid line, which could be a front or squall line. As movement of
the echoes is determined, this will also be indicated on the chart in one of two ways. An arrow
showing the direction and a number indicating the knots of speed of the cell movement indicates
individual cell movement. Larger areas or lines of thunderstorms also may move, and their
directions may be different than individual cells. Thus, different symbology is used: an arrow
indicates area or line movement with wind-barb notation for speed of movement. See Figure 2-8
for the particular details of other data that may be displayed on the Radar Summary Chart.
DATA DISPLAYED ON WEATHER IMAGERY PRODUCTS
2-9


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