Navigational warnings on 2011-08-21

UTC day · today

issued
26
cancelled
7
in force at end
276
of these still in force
0

What this reporting period contains

26 messages have issue dates in this period, and 7 have cancellation dates in it. A cancellation can close a message issued earlier; subtracting these totals does not give a count of new incidents.

Nav aids accounts for 8 of 26 recorded messages (31%), the largest category group in this selection.

HYDROPAC accounts for 14 of 26 recorded messages (54%), 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

Nav aids8
Incidents6
Quakes4
Exercises3
Cable ops2
Piracy1
Missiles1
Derelicts1

Issued · by sea

Coral Sea4
North Pacific Ocean3
Japan Sea2
Arabian Sea2
South Atlantic Ocean2
Bismarck Sea1
Gulf of Mexico1
Bay of Bengal1

HYDROPAC 14 · USGS earthquakes 4 · NAVAREA XII 3 · HYDROLANT 2 · NAVAREA IV 2 · HYDROARC 1

Issued · 26

Cancelled · 7

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

Navigational warnings on 2011-08-21 · seahazards