5-12
Pilot’s Guide
190-02327-03 Rev. C
Hazard Awareness
Precipitation
WARNING
Never use NEXRAD weather for maneuvering in, near, or around areas of
hazardous weather. NEXRAD images are snapshots of past weather data. They
are not safe for use as real time depictions of nearby weather activity.
NEXRAD weather radar displays a mosaic of precipitation data, colored according to
reflectivity. Composite reflectivity images depict the highest radar energy received
from multiple antenna tilt angles at various altitudes. Base reflectivity images depict
radar returns from the lowest antenna tilt angle. Per AC 00-63A, FIS-B CONUS and
Regional NEXRAD are composite reflectivity images.
The precipitation intensity level reflected by each pixel represents the highest level of
composite radar reflectivity data sampled in that location.
AVAILABLE WITH:
FIS-B | SIRIUSXM | CONNEXT
A clear understanding of ground-based Doppler weather radar capabilities will
allow you to interpret the NEXRAD weather imagery in the safest way possible.
The National Oceanic and Atmospheric Administration hosts a description of the
technology on its website:
https://www.weather.gov/jetstream/doppler_intro
CONUS NEXRAD
Regional NEXRAD
FIS-B NEXRAD
Summary of Contents for GTN 625Xi
Page 1: ...GTN Xi Series Pilot s Guide...
Page 12: ...x Pilot s Guide 190 02327 03 Rev C INTENTIONALLY LEFT BLANK...
Page 25: ...1 System at a Glance OVERVIEW 1 2 PILOT INTERFACE 1 5 COMPATIBLE EQUIPMENT 1 20...
Page 142: ...2 98 Pilot s Guide 190 02327 03 Rev C INTENTIONALLY LEFT BLANK...
Page 309: ...5 Hazard Awareness WEATHER AWARENESS 5 3 TRAFFIC AWARENESS 5 70 TERRAIN AWARENESS 5 97...
Page 419: ...Hazard Awareness 190 02327 03 Rev C Pilot s Guide 5 111 EXCESSIVE CLOSURE RATE ALERT...
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Page 451: ...6 Abnormal Operations EMERGENCY DESCENT 6 2...
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Page 455: ...7 Services SIRIUSXM AUDIO ENTERTAINMENT 7 3 CONNEXT SERVICES 7 9...
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Page 479: ...8 Messages ADVISORY MESSAGES 8 2...
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Page 517: ...10 Practice DEMO MODE 10 2...
Page 529: ...12 Regulatory Information COMPLIANCE 12 2 SOFTWARE LICENSE AGREEMENT 12 3...
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