SIGMET on airport detail

On the airport detail page a dedicated card shows active SIGMETs within 200 NM. It's a fixed mini-map (220 px on the dashboard, equivalent card on the app) with 50/100/200 NM range rings, the airport at the centre and SIGMET polygons drawn at their actual geographic location.

What you see

• Airport dot at the centre with white halo
• 3 dashed range rings (50/100/200 NM)
• SIGMET polygons in dashed orange
• Open polylines (FIR-crossing) as dashed lines
• If a polygon is missing, a pin at the centroid; last resort: bearing+distance projection

Relevance

A SIGMET is relevant to an airport if the airport is inside the polygon OR its distance to the nearest vertex is ≤ 200 NM. Same logic powers the orange ring on the main map pins.