Restricted

Navigation prohibited 0515Z to 0735Z and 0935Z to 1155Z daily 22 thru 26 may in area bound by 59-10N…

Sea of Okhotsk · HYDROPAC 1390/12

What this record establishes

Archived notice · 2012-05-26 12:55Z

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) · NAVAREA XIII 22/12 170910Z MAY 12.. Issued 2012-05-17 09:47Z. 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
Sea of Okhotsk. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Current notices and reporting history in the Sea of Okhotsk →

Activity windows · 10 in this warning

opens (UTC)closes (UTC)locallength
2012-05-22 05:15Z2012-05-22 07:35Z—2 h 20
2012-05-22 09:35Z2012-05-22 11:55Z—2 h 20
2012-05-23 05:15Z2012-05-23 07:35Z—2 h 20
2012-05-23 09:35Z2012-05-23 11:55Z—2 h 20
2012-05-24 05:15Z2012-05-24 07:35Z—2 h 20
2012-05-24 09:35Z2012-05-24 11:55Z—2 h 20
2012-05-25 05:15Z2012-05-25 07:35Z—2 h 20
2012-05-25 09:35Z2012-05-25 11:55Z—2 h 20
… 2 more

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

issued
2012-05-17 09:47Z
status
Archived notice
self-cancels
2012-05-26 12:55Z
authority
NAVAREA XIII 22/12 170910Z MAY 12.
NAVAREA
NAVAREA XIII · named as the source of this relay
sea
Sea of Okhotsk
position
60.396, 158.280
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

SEA OF OKHOTSK.
1. NAVIGATION PROHIBITED 0515Z TO 0735Z AND
   0935Z TO 1155Z DAILY 22 THRU 26 MAY
   IN AREA BOUND BY
   59-10N 158-40E, 61-10N 156-40E,
   61-32N 157-05E, 61-32N 158-00E,
   59-30N 160-00E.
2. CANCEL THIS MSG 261255Z MAY.

Reading this warning

Navigation prohibited
Ships may not enter or pass through the area, or a port is closed to traffic.
Area bound by
Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
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.
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.

All warning terms →

Collected reports in this area · restricted areas & port closures

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

08
10
12

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.

Month of issue in the collected archive

J
F
M
A
M
J
J
A
S
O
N
D

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 2026-09-28 07:51Z; 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.