Garmin GTN 725 Pilot's Manual page 345

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Steep Gradient

Thunderstorm development is rapid. A course may become blocked within

a short time. When displaying shorter ranges, periodically select a longer range

to see if problems are developing further out. That can help prevent getting

trapped in a "blind alley" or an area that is closed at one end by convective

In areas of multiple heavy cells, use the Vertical Scan feature along with

antenna tilt management to examine the areas. Remember to avoid shadowed

areas behind targets.

190-01007-03 Rev. D

Figure 12-50 Cell Irregularities

Figure 12-51 The "Blind Alley" Overhead View

Figure 12-52 The "Blind Alley" Vertical Scan

Garmin GTN 725/750 Pilot's Guide

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