NAVAREA Warnings
Navigational warnings for 21 NAVAREAs worldwide issued by the WWNWS coordinator. Maritime Safety Information (MSI) including hazards to navigation, distress alerts and search and rescue operations.
Updated: Thu, 06 Aug 2026 19:14:29 UTC
● LiveData Sources
All NAVAREA Regions — Active Warning Summary
| NAVAREA | Region | Coordinator | Active Warnings | Source |
|---|---|---|---|---|
| I | N Atlantic (NE) | UK (UKHO) | 0 | Official ↗ |
| II | N Atlantic (E) | France (SHOM) | 0 | Official ↗ |
| III | Mediterranean | Spain (IHM) | 0 | Official ↗ |
| IV | N Atlantic (W) | USA (NGA) | 0 | Official ↗ |
| V | S Atlantic (W) | Brazil (DHN) | 0 | Official ↗ |
| VI | S Atlantic (E) | Argentina (SIHN) | 0 | Official ↗ |
| VII | S Africa / Indian Ocean | South Africa (SANHO) | 0 | Official ↗ |
| VIII | Indian Ocean (N) | India (NHO) | 0 | Official ↗ |
| IX | Arabian Sea / Persian Gulf | Pakistan (NHO) | 0 | Official ↗ |
| X | Australian Waters (W) | Australia (AMSA) | 0 | Official ↗ |
| XI | Japan / NW Pacific | Japan (JCG) | 0 | Official ↗ |
| XII | N Pacific (E) | USA (NGA) | 0 | Official ↗ |
| XIII | N Pacific (W) | Russia (HIOC) | 0 | Official ↗ |
| XIV | S Pacific | New Zealand (LINZ) | 0 | Official ↗ |
| XV | S Pacific (E) | Chile (SHN) | 0 | Official ↗ |
| XVI | China Seas | China (MNS) | 0 | Official ↗ |
| XVII | Arctic (NW) | Norway (NHS) | 0 | Official ↗ |
| XVIII | Arctic (N) | Russia (HIOC) | 0 | Official ↗ |
| XIX | Arctic (NE) | USA (NGA) | 0 | Official ↗ |
| XX | Baltic Sea | Russia (HIOC) | 0 | Official ↗ |
| XXI | Black Sea | Russia (HIOC) | 0 | Official ↗ |
Active Warnings
Frequently Asked Questions
What is a NAVAREA warning?
A NAVAREA warning is a navigational warning broadcast by the coordinator of one of the 21 worldwide NAVAREA regions under the WWNWS (World-Wide Navigational Warning Service). They contain Maritime Safety Information (MSI) about hazards to navigation including wrecks, exercises, survey operations, light changes and drifting hazards.
How many NAVAREA regions are there?
There are 21 NAVAREA regions worldwide, each with a designated coordinator (e.g., UKHO for NAVAREA I, NGA for NAVAREA IV, India NHO for NAVAREA VIII, Japan JCG for NAVAREA XI). The WWNWS covers all global waters.
How often are NAVAREA warnings updated?
NAVAREA warnings are issued continuously as hazards are reported. Active warnings remain in force until cancelled by the issuing authority. HeyMariner refreshes live warning data from NGA MSI every hour.
Where can I find NAVAREA warnings for NAVAREA VIII (Indian Ocean)?
NAVAREA VIII warnings for the North Indian Ocean are coordinated by India's National Hydrographic Office (NHO) at hydrobharat.gov.in. Warnings are also rebroadcast via NGA MSI and the IHO Navigation Warnings on the Web portal.
About This Page
Data sourced from NGA MSI, India NHO, and official NAVAREA coordinators. Verified by HeyMariner's maritime intelligence team.