Route check
Waypoints, one per line as lat, lon (decimal degrees, south and west negative). Legs are rhumb lines; the band is the chosen width either side.
What you get
| in force | every warning we display whose area or position lies inside the band, per leg and for the whole route |
| archive | ten years of warnings positioned inside each leg’s band: how many, which types, which month they peak |
| band | rhumb-line legs buffered 10 to 50 nm each side, the same band the parser draws for “within N miles of a trackline” |
A planning aid, not a route plan: no depths, traffic separation or weather are considered. Mariners must use official NAVAREA broadcasts and their national MSI service.