Navigational warnings on 2011-12-21

UTC day · today

issued
26
cancelled
19
in force at end
269
of these still in force
0

What this reporting period contains

26 messages have issue dates in this period, and 19 have cancellation dates in it. A cancellation can close a message issued earlier; subtracting these totals does not give a count of new incidents.

Cable ops, Exercises tie for the largest recorded count, with 5 messages each.

HYDROLANT accounts for 13 of 26 recorded messages (50%), 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

Exercises5
Cable ops5
Derelicts4
Other4
Restricted2
Nav aids1
Surveys1
Containers1
Spills1
Icebergs1
Quakes1

Issued · by sea

South Pacific Ocean3
Caribbean Sea2
North Atlantic Ocean2
North Sea2
Gulf of Guinea2
Yellow Sea1
English Channel1
North Pacific Ocean1

HYDROLANT 13 · HYDROPAC 8 · NAVAREA XII 2 · NAVAREA IV 1 · NOAA IncidentNews 1 · USGS earthquakes 1

Issued · 26

Cancelled · 19

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 2011-12-21 · seahazards