Navigational warnings, week 2011-W52

2011-12-26 to 2012-01-01 UTC

  1. 12-26
    14
  2. 12-27
    22
  3. 12-28
    12
  4. 12-29
    13
  5. 12-30
    26
  6. 12-31
    26
  7. 01-01
    14
issued
127
cancelled
129
in force at end
241
of these still in force
0

What this reporting period contains

127 messages have issue dates in this period, and 129 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 26 of 127 recorded messages (20%), the largest category group in this selection.

HYDROLANT accounts for 65 of 127 recorded messages (51%), 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 aids26
Exercises23
Other20
Cable ops19
Incidents18
Quakes4
Piracy4
Derelicts4
Missiles3
Containers2
Restricted1
Mines1
Debris1
Icebergs1

Issued · by sea

North Atlantic Ocean9
North Sea9
South China Sea8
South Atlantic Ocean8
Bay of Bengal8
North Pacific Ocean7
Inner Seas off the West Coast of Scotland5
Arabian Sea5

HYDROLANT 65 · HYDROPAC 51 · NAVAREA XII 5 · USGS earthquakes 4 · HYDROARC 2

Issued · 127

Cancelled · 129

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

Navigational warnings, week 2011-W52 (2011-12-26 to 2012-01-01) · seahazards