Garmin aera 660 aera 660 Pilot s Guide - Page 103

Overview Hazard Avoidance TEMPERATURES ALOFT Temperature Aloft data shows the forecasted temperatures aloft in 3,000-foot increments up to 39,000 feet MSL. For altitudes 18,000 feet and above the relative ISA temperature is shown. Temperatures are color coded with temperatures near and below freezing are shown as shades of blue, green for temperatures just above freezing and shades of orange are used for warmer temperatures. Navigation Flight Planning Hazard Avoidance Additional Features Temperatures Aloft Data METARS AND TAFS Temperatures Aloft Altitudes NOTE: METAR information is only displayed within the installed aviation database service area. METAR (METeorological Aerodrome Report) is an international code used for reporting weather observations. METARs are updated hourly or as needed. METARs typically contain information about the temperature, dewpoint, wind, precipitation, cloud cover, cloud heights, visibility, and barometric pressure. They can also contain information on precipitation amounts, lightning, and other critical data. If METAR data is available for an airport, a color-coded flag is shown next to the airport. TAF (Terminal Area Forecast) is the standard format for 24-hour weather forecasts. TAFs may contain some of the same code as METAR data. It typically forecasts significant weather changes, temporary changes, probable changes, and expected changes in weather conditions. An abbreviated version can be viewed by selecting the METAR flag with the map pointer. Touching the Map Feature Button will display additional information. METAR and TAF data can be displayed as raw or decoded text. 190-02017-20 Rev. A Garmin aera 660 Pilot's Guide 87 Appendices Index