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Coast guard precautionary transit notification vicinity of fukushima japan

North Pacific Ocean · HYDROPAC 838/11

What this record establishes

Archived notice · 2011-06-06 23:42Z

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) · USCG FUKUSHIMA JAPAN 171847Z MAR 11.. Issued 2011-03-17 18:54Z. 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 37.317, 141.017. 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
2011-03-17 18:54Z
status
Archived notice
authority
USCG FUKUSHIMA JAPAN 171847Z MAR 11.
issued by
USCG FUKUSHIMA JAPAN
sea
North Pacific Ocean
position
37.317, 141.017
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.
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
50 MILES (43 NAUTICAL MILES/80 KILOMETERS) OF THE
FUKUSHIMA NUCLEAR POWER PLANT (37-19N 141-01E).
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 50 MILES (43 NAUTICAL MILES/80 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.

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.

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 00:04Z; 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.