Garmin aera 796 Pilot's Guide - Page 97

Overview Hazard Avoidance ECHO TOPS Echo Tops are derived from NEXRAD radar and indicate the highest altitude at which precipitation is falling. Echo Tops at or above the altitude you select are displayed, in 5,000 foot increments up to 70,000 ft. Echo Tops can be helpful in determining the severity of thunderstorms. GPS Navigation Flight Planning Hazard Avoidance Additional Features Echo Tops Data Echo Tops Altitudes WINDS ALOFT Winds Aloft data shows the forecasted wind speed and direction at the surface and at selected altitudes. Altitudes can be displayed in 3,000-foot increments up to 42,000 feet MSL. Winds Aloft are displayed using wind barbs or a wind streamline depending on the selected range. The wind barbs indicate wind speed and direction. The wind streamline indicates wind direction with arrows. The wind barbs always point in the direction that the wind is coming from. The wind speed is depicted using flags at the end of the wind barb. A short wind flag is 5 knots, a long wind flag is 10 knots, and a triangle flag is 50 knots. Appendices Index Winds Aloft Data Winds Aloft Altitudes 190-01194-00 Rev. A Garmin aera 795/796 Pilot's Guide 83