Garmin Flight Deck 100 用户手册

®

190-00728-04 Rev. A

364

When  evaluating  various  target  returns  on  the  weather  radar  display,  the  colors  denote  precipitation

intensity and rates shown in the table.

< 23 dBZ

< .01.

23 dBZ  to < 32 dBZ

.01 - 0.1.

32 dBZ to < 41 dBZ

0.1 - 0.5

41 dBZ to < 50 dBZ

0.5 - 2

50 dBZ and greater

> 2

Updrafts and downdrafts in thunderstorms carry water through the cloud. The more severe the drafts, the

greater the number and size of the precipitation droplets. With this in mind, the following interpretations
can be made from what is displayed on the weather radar. Avoid these areas by an extra wide margin.

• In areas where the displayed target intensity is red or magenta (indicating large amounts of precipitation),

the turbulence is considered severe. 

• Areas that show steep color gradients (intense color changes) over thin bands or short distances suggest

irregular rainfall rate and strong turbulence.

• Areas that show red or magenta are associated with hail or turbulence, as well as heavy precipitation.

Vertical scanning and antenna tilt management may be necessary to identify areas of maximum intensity.