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Garmin G1000 Cockpit Reference Guide for the Columbia 350/400
10-4
SECTION 10 – HAZARD
AVOIDANCE
Displaying Weather on the Weather Data Link
Page
1) Turn the large
FMS
Knob to select the Map
Page Group.
2) Turn the small
FMS
Knob to select the Weather
Data Link Page.
3) Select the available softkeys to select the
desired XM weather product.
4) Select the
LEGEND
Softkey to view the legends
for the selected products. If necessary, turn
either
FMS
Knob to scroll through the list.
Press the small
FMS
Knob or the
ENT
Softkey
to return to the map.
Figure 10-9 Weather Data Link Page
NEXRAD – Select the NEXRAD Softkey to show
NEXRAD weather and radar coverage information.
Areas where radar coverage is not available will be
shown in grayish-purple. The display is updated
every five minutes.
NEXRAD Limitations
Certain limitations exist regarding the NEXRAD radar
displays. Some, but not all, are listed here:
• NEXRAD base reflectivity does not provide
sufficient information to determine cloud layers or
precipitation characteristics (hail vs. rain, etc).
• An individual NEXRAD site cannot depict high
altitude storms at close ranges, and has no
information about storms directly over the site.
• The resolution of displayed NEXRAD data is 4
square kilometers. Therefore, when zoomed in on
the display, each square block is 2 kilometers on
each side. The intensity level reflected by the square
will be the highest level sampled within the square
area.
ECHO TOP – Select the ECHO TOP Softkey to
show the location, elevation, and direction the
highest radar echo. This may not indicate the top
of a storm or clouds, only the highest radar return
echo. ECHO TOPS cannot be displayed along
with NEXRAD and CLOUD TOPS. When ECHO
TOPS is activated, NEXRAD and CLOUD TOPS are
removed. Refer to the Legend for a description of
the ECHO TOPS coding. The display is updated
every 7.5 minutes.
CLD TOP – Select the CLD TOP Softkey to show the
cloud top altitude determined from satellite imagery.
The display is updated every 15 minutes.
LTNG – Selecting the LTNG Softkey shows the location
of cloud-to-ground lightning strikes. The display is
updated every five minutes.
NOTE: Strikes depicted represent cloud to ground
strikes within a 2 kilometer radius of the actual
strike location. Therefore, the exact location of
the strike is not displayed.