Storms · Other

A tropical storm closes the ports of Saipan at 15-11N 145-45E and Tinian at 15-00N 145-38E in the North Pacific Marianas until further notice.

Philippine Sea · NAVAREA XI 438/26

What this record establishes

Listed in force

The latest collected record lists this warning as active. This is the status of the notice, not a live observation of conditions at the location.

Source and dates
Japan Coast Guard JHOD NAVAREA XI · Japan Coast Guard (JHOD). Issued 2026-10-01 12:00Z. First collected 2026-10-01 12:21Z; last seen in collection 2026-10-01 12:21Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
Philippine Sea. The parsed report position is 15.092, 145.692. 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 Philippine Sea →

issued
2026-10-01 12:00Z
status
Listed in force
authority
Japan Coast Guard (JHOD)
NAVAREA
NAVAREA XI
issued by
JAPAN COAST GUARD
sea
Philippine Sea
position
15.092, 145.692
nearest port
Saipan · 8 nm
source
Japan Coast Guard JHOD NAVAREA XI · first seen 2026-10-01 12:21Z

Original warning text

NORTH PACIFIC, MARIANAS.
DUE TO TROPICAL STORM, THE FOLLOWING
PORTS ARE CLOSED, UNTIL FURTHER NOTICE.
A. SAIPAN, 15-11N 145-45E.
B. TINIAN, 15-00N 145-38E.

Reading this warning

Until further notice
The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
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 →

Conditions at the position · now

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MET Norway · NOAA WaveWatch III · HYCOM · GEBCO 2020 · model data at the centroid, not an observation

Collected reports in this area · tropical cyclone warnings

24 within 180 nm since 2018 · 5 in the last 12 months · 2 listed in force now

18
20
25
26

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

Worldwide in the collected sources

5 tropical cyclone warnings listed in force · see all

Record snapshot 2026-10-01 13:57Z; source collection times vary.

Storms

Hurricanes, typhoons and tropical storms: forecast cones from the U.S. National Hurricane Center and the Joint Typhoon Warning Center, and the port closures NAVAREA coordinators broadcast for them. All current tropical cyclone 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.