Metars - Garmin GTN 650 Series Pilot's Manual Upgrade Supplement

5.6.10

METARs

NOTE: Atmospheric pressure reported for METARs is given in hectopascals
(hPa), except in the United States, where it is reported in inches of mercury
(in Hg). Temperatures are reported in Celsius.
NOTE: METAR information is only displayed within the installed aviation
database service area.
METAR (METeorological Aerodrome Report), known as an Aviation Routine
Weather Report, is the standard format for current weather observations.
METARs are generally updated hourly, but some site are more frequent. Special
updates are done as conditions warrant. METARs typically contain information
about the temperature, dew point, wind, precipitation, cloud cover, cloud
heights, visibility, and barometric pressure. They can also contain information
on precipitation amounts, lightning, and other critical data. METARs are shown
as colored flags at airports that provide them.
METAR Symbol
62
GTN 650/750 Series SW V3.00 Upgrade Supplement 190- 01007-05 Rev A
VFR (ceiling greater than 3000 ft. AGL and visibility
greater than five miles)
Marginal VFR (ceiling 1000–3000 ft. AGL and/or visibility
three to five miles)
IFR (ceiling 500 to below 1000 ft. AGL and/or visibility one
mile to less than three miles)
Low IFR (ceiling below 500 ft. AGL or visibility less than
one mile)
Unknown
Table 5-3 METAR Symbols
Description