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Coast guard precautionary transit notification vicinity of fukushima japan

North Pacific Ocean · NAVAREA XII 110/12

What this record establishes

Archived notice · 2015-10-11 08:40Z

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 XI 151513Z APR 12.. Issued 2012-04-16 09:53Z. 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
North Pacific Ocean. The parsed report position is 37.425, 141.033. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the North Pacific Ocean →

issued
2012-04-16 09:53Z
status
Archived notice
authority
NAVAREA XI 151513Z APR 12.
NAVAREA
NAVAREA XII
sea
North Pacific Ocean
position
37.425, 141.033
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH PACIFIC.
JAPAN-EAST COAST.
U.S. COAST GUARD PRECAUTIONARY TRANSIT NOTIFICATION
VICINITY OF FUKUSHIMA JAPAN.
1. IN RESPONSE TO THE SITUATION AT THE FUKUSHIMA NUCLEAR
   POWER PLANT IN JAPAN, THE U.S. COAST GUARD RECOMMENDS,
   AS A PRECAUTION, THAT VESSELS AVOID TRANSITING WITHIN
   10.8 MILES (20 KILOMETERS) OF THE
   FUKUSHIMA NUCLEAR POWER PLANT (37-25-30.0N 141-02-00.0E),
   EXCEPT NORTH SIDE OF LATITUDE 37-30-49.6N IS SAFE FOR
   NAVIGATION, BASED ON ACT ON SPECIAL MEASURES CONCERNING
   NUCLEAR EMERGENCY PREPAREDNESS AT 151500Z APR.
   MARINERS ARE ADVISED THAT THIS RECOMMENDATION SHOULD
   BE CONSIDERED A MINIMUM DISTANCE. PRUDENT ROUTE
   PLANNING SHOULD INCORPORATE PREVAILING AND CHANGING
   WIND AND WEATHER CONDITIONS, IN ADDITION TO THE
   OTHER PRECAUTIONARY MEASURES.
   IN THE EVENT A VESSEL BOUND FOR A U.S. PORT TRANSITS
   WITHIN THE 10.8 MILES (20 KILOMETERS)
   CAUTIONARY AREA, THE U.S. COAST GUARD RECOMMENDS THE
   VESSEL'S MASTER SUBMIT TRANSIT INFORMATION, INCLUDING
   THE DATE AND TOTAL TIME WITHIN THE CAUTIONARY AREA,
   TO THE COGNIZANT U.S. COAST GUARD CAPTAIN OF THE PORT
   USING THE COMMENT BLOCK IN THE ROUTINE SUBMITTAL OF
   THEIR 96-HOUR ADVANCED NOTICE OF ARRIVAL.
   THE U.S. COAST GUARD WILL PROVIDE AN UPDATED NOTICE
   AS ADDITIONAL GUIDANCE BECOMES AVAILABLE. MARINERS
   SHOULD KEEP ABREAST OF INFORMATION BEING PROVIDED
   BY THE GOVERNMENT OF JAPAN RELATING TO ANY FURTHER
   POTENTIAL IMPACTS.
2. CANCEL NAVAREA XII 215/11.

Reading this warning

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.
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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
NAVAREA
One of the 21 ocean areas of the World-Wide Navigational Warning Service, each with a coordinator that broadcasts long-range warnings.

All warning terms →

Collected reports in this area · other warnings

6 within 180 nm since 2011 · 0 in the last 12 months · 0 listed in force now

11
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

21 other warnings listed in force · see all

Record snapshot 2026-10-03 00:40Z; source collection times vary.

Other

Everything the classifier did not place elsewhere. All current other warnings →

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.