NAVIGATIONAL WARNINGS · FOR OFFICERS OF THE WATCH AND MASTERS
NAVAREA warnings
By the NaviBoss team · Updated
The world's oceans are divided into 21 NAVAREAs, each with a coordinating country that broadcasts its navigational warnings at least twice a day. Find your area below, or your country in the second table. NaviBoss draws the in-force warnings of every area on the chart.
21. The World-Wide Navigational Warning Service divides the world's oceans into 21 NAVAREAs, each with a coordinating country that broadcasts its navigational warnings. Five of them (XVII to XXI) cover Arctic waters.
What is the difference between a NAVAREA and a METAREA?
They are the same 21 sea areas used for two services: NAVAREA warnings carry navigational safety information (wrecks, buoys out of position, firing practice, drifting objects), METAREA broadcasts carry weather forecasts and warnings.
Which NAVAREA is the Philippines in?
NAVAREA XI, coordinated by Japan (Japan Coast Guard).
Do I still need the official NAVAREA list on board?
Yes. NaviBoss shows the warnings to help you plan, but the official in-force list from the coordinator and the broadcasts received on board (SafetyNET, NAVTEX) are what count for navigation.
Every warning in force, on the chart
The Warnings tool draws the in-force NAVAREA warnings, lists the ones near your route and exports them to your ECDIS as a user chart. Free with an account.
NaviBoss guides are written and checked by maritime industry experts, masters and deck officers. Each one is built from the same data the planner uses, dated, and rebuilt when that data changes. Spotted something wrong? Tell us on the feedback board.
A planning aid, not for navigation. The official in-force list from the NAVAREA coordinator and the broadcasts received on board always come first.
