Low-NIC hexagons · NIC<7 ratio
0–2% normal (Low)
2–10% caution (Medium)
>10% degraded (High)
Last hour · darker means higher · NIC=fill / NACp=outline
NIC · aircraft/track color
0 risk611 normal
◯ Position anomaly
◯ Low NIC
⚔ Military
direct
▲ Vessels