User Guide

Garmin G1000 Pilot’s Guide for the Diamond DA40/40F
190-00592-01 Rev. A6-20
HAZARD AVOIDANCE
Figure 6-24 Sample SIGMET Text
METARS AND TAFS
NOTE: The atmospheric pressure on the METAR is reported in hectopascals everywhere but in the US,
where it is reported in inches of mercury. Temperatures are reported in Celsius. Standard temperature and
atmospheric pressure are 59°F (15°C) and 29.92 in Hg (1013.2 hPa).
NOTE: METAR and City Forecast information is only displayed within the installed Aviation Database service
area.
METAR (METeorological Aerodrome Report) is the standard format for pre-flight weather briefings. METARs
are updated hourly and are considered current. A typical METAR report (as shown in Figure 6-25) contains
information about the temperature, dew point, wind, precipitation, cloud cover, cloud heights, visibility, and
barometric pressure. It can also contain information on precipitation amounts, lightning, and other critical
data. METARs are shown as colored flags at airports that provide them.
By contrast, the TAF (Terminal Aerodrome Report) is the standard format for 24-hour weather forecasts.
The TAF (as shown in Figure 6-25) may contain some METAR data, but it generally covers a smaller area. It
typically forecasts significant weather changes, temporary changes, probable changes, and expected changes
in weather conditions. METAR and TAF text are displayed on the Weather Data Link Page and the Weather
Information Page.
Viewing METAR and TAF text for a selected airport:
1) On the Weather Data Link Page, press the Joystick and pan to the desired airport.
2) Press the ENT Key to display the Weather Information Page with METAR and TAF text.
OR:
3) Select the Weather Information Page and enter the desired airport.
a) Use the large FMS Knob to select the Waypoint Page Group.
b) Use the small FMS Knob to select the first page of the group.