World-Wide Navigational Warning Service · Arctic area

NAVAREA XXI

Coordinated by Russian Federation (Russian Federation (Department of Navigation and Oceanography)); covers the eastern Russian Arctic: the East Siberian and Chukchi Seas.

NAVAREA XXI covers the eastern Russian Arctic, from the Laptev and East Siberian Seas toward the Chukchi Sea. The Russian Federation coordinates it.

Warnings here come from NGA HYDROARC relays that name NAVAREA XXI as their source.

own list read: no — via NGA relays only
attributed by: named in an NGA relay 108

What the archive shows

108 warnings in this archive are attributed to NAVAREA XXI, issued from 2010-09-09 to 2024-04-26. None of them is in force in the latest lists we collected.

All of them are NGA relays (HYDROLANT, HYDROPAC or HYDROARC) that name NAVAREA XXI as their source; the area's own list is not in this archive.

Missiles accounts for 43 of 108 recorded messages (40%), the largest warning type group in this selection.

The largest yearly count is 2013, with 22 warnings. Collection is incomplete between 2024-05 and 2026-08-17, so those years are not comparable.

Across all years its warnings are issued most often in September and least often in February.

They reached this archive through HYDROARC (108).

Attributed warnings by year of issue

'10

'11

'12

'13

'14

'15

'16

'17

'18

'19

'20

'21

'22

'23

'24

By month of issue, all years

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Warning types

Where they lie · 10 sea areas

Most recently issued

Neighbouring areas

NAVAREA XX — the western Russian Arctic: the Kara Sea and the approaches to the Northern Sea Route

All 21 NAVAREAs → · What a NAVAREA is →

Counts are warnings attributed to NAVAREA XXI by their series or by the source an NGA relay names, recounted 2026-09-24; the area's full traffic is larger. Not for navigation — follow official NAVAREA broadcasts.