Navigational warnings on 2026-09-30

UTC day · today

issued: 32
cancelled: 36
in force at end: 366
of these still in force: 9

What this reporting period contains

32 messages have issue dates in this period, and 36 have cancellation dates in it. A cancellation can close a message issued earlier; subtracting these totals does not give a count of new incidents.

Surveys accounts for 9 of 32 recorded messages (28%), the largest category group in this selection.

HYDROLANT accounts for 9 of 32 recorded messages (28%), the largest source series group in this selection.

Separate updates to the same activity count as separate messages. The original records below show what was reported and when.

Issued · by type

Surveys	9
Storms	8
Exercises	5
Nav aids	3
Icebergs	2
Missiles	1
Wrecks	1
Quakes	1
Cable ops	1
Derelicts	1

Issued · by sea

North Pacific Ocean	5
North Atlantic Ocean	5
Black Sea	3
South Atlantic Ocean	3
Coral Sea	2
Bass Strait	2
Mediterranean Sea - Eastern Basin	1
Philippine Sea	1

HYDROLANT 9 · HYDROPAC 7 · NHC storms 5 · AUSCOAST 3 · JTWC storms 3 · NAVAREA IV 2 · NAVAREA XI 1 · NAVAREA II 1 · USGS earthquakes 1

Issued · 32

Cancelled · 36

Not for navigation. Counts include only warnings we display; ongoing search-and-rescue traffic is excluded until 30 days after it closes.