Restricted

Nga chart 38023 (4TH ed)

Arctic Ocean · HYDROPAC 977/08

What this record establishes

Archived notice · 2008-06-01 08:00Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · RUSSIA COASTAL WARNING EAST 1/08 200550Z MAY 08.. Issued 2008-05-20 09:18Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered: Arctic Ocean. The parsed report position is 78.267, 163.917 with a 27.0 nm radius. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the Arctic Ocean →

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
2008-05-24 05:00Z	2008-05-24 07:00Z	—	2 h

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

issued: 2008-05-20 09:18Z
status: Archived notice
self-cancels: 2008-06-01 08:00Z
authority: RUSSIA COASTAL WARNING EAST 1/08 200550Z MAY 08.
issued by: RUSSIA COASTAL WARNING EAST
sea: Arctic Ocean
position: 78.267, 163.917 · r 27.0 nm
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

NGA CHART 38023 (4TH ED).
1. NAVIGATION PROHIBITED 240500Z TO 240700Z MAY,
   ALTERNATE 0500Z T0 0700Z DAILY 25 MAY THRU 01 JUN
   WITHIN 50 KILOMETERS OF 78-16N 163-55E.
2. CANCEL THIS MSG 010800Z JUN.

Reading this warning

Chart reference: The number of the nautical chart on which the reported position lies.
Navigation prohibited: Ships may not enter or pass through the area, or a port is closed to traffic.
Date-time group (DTG): A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
Position (degrees and minutes): How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
CANCEL THIS MSG: The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · restricted areas & port closures

2 within 180 nm since 2008 · 0 in the last 12 months · 0 listed in force now

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Nga chart 38023 (4TH ed)2008-05-20

Month of issue in the collected archive

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

2 restricted areas & port closures listed in force · see all

Record snapshot 2026-10-03 21:52Z; source collection times vary.

Restricted

Navigation prohibited, exclusion and security zones, ports closed to traffic. All current restricted areas & port closures →

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.