Navigational warnings on 2011-12-09

UTC day · today

issued
31
cancelled
28
in force at end
270
of these still in force
0

What this reporting period contains

31 messages have issue dates in this period, and 28 have cancellation dates in it. A cancellation can close a message issued earlier; subtracting these totals does not give a count of new incidents.

Exercises accounts for 6 of 31 recorded messages (19%), the largest category group in this selection.

HYDROLANT accounts for 16 of 31 recorded messages (52%), 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

Exercises6
Nav aids5
Incidents5
Other5
Cable ops4
Surveys2
Piracy1
Quakes1
Missiles1
Derelicts1

Issued · by sea

South Atlantic Ocean4
North Sea3
South China Sea2
North Pacific Ocean2
North Atlantic Ocean2
Inner Seas off the West Coast of Scotland2
South Pacific Ocean1
Indian Ocean1

HYDROLANT 16 · HYDROPAC 12 · HYDROARC 2 · USGS earthquakes 1

Issued · 31

Cancelled · 28

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 2011-12-09 · seahazards