Plain English Meaning

A screen on the cockpit display that shows where weather warnings are in effect, drawn as outlined areas on the map so the pilot can see if the route passes through them.

Full Definition

A function on a Multi-Function Display (MFD) that shows the boundaries of active AIRMETs and SIGMETs, allowing the pilot to see which areas along or near the route are affected by hazardous weather advisories. AIRMETs cover weather hazardous to light or less-equipped aircraft (such as moderate icing, moderate turbulence, IFR conditions, and mountain obscuration), while SIGMETs cover more severe, widespread hazards (such as , , , and dust or ). The display typically overlays these areas on the and may allow the pilot to select an to read the full text of the advisory.