63Detailed OperationMenu Options for Overlay Page 11. Press the OVRL function key to allow selection of the Overlay choices when viewing the Graphical WXoption.2. Press MENU/ENTER to display menu items for the Overlay. Press NEXT PAGE to see moreoptions.METARsWhen enabled, METARs are available as colored circles or diamonds at airports that provide METAR reports.Press the METARs Menu Item key to cycle through the options of circular, diamond, or no METARs. Refer tothe Legend for a description of the color code. US and Canadian METARS use the same color coding and willbe shown at the same time with a subscription to both products.SIGMETs & AIRMETsWhen enabled, the following SIGMETs and AIRMETs are available for display:• “SIGMETs” are for Convective SIGMETs• “T AIRMET” is for Surface/Aloft Turbulence AIRMETs• “Z AIRMET” is for Icing AIRMET• “S AIRMET” is for an IFR condition, such as a mountain obstruction• “Other” is for other types of AIRMETs• “No Warn. Area” is to turn off all SIGMETs and AIRMETsThese are collectively known as Warning Boxes and are displayed as color coded outlines of the affected area.Refer to the Legend for a description of the color coding.Echo TopsEcho Tops indicate the location, elevation, and direction the highest radar echo. This is typically associatedwith storms. This may not indicate the top of a storm or clouds, only the highest radar return echo. Refer tothe Legend for a description of the Echo Tops coding.WSI - FISWSI FIS Graphic Weather Overlay Menu Items (Page1)
