Navigational warnings, week 2011-W42

2011-10-17 to 2011-10-23 UTC

  1. 10-17
    18
  2. 10-18
    21
  3. 10-19
    13
  4. 10-20
    22
  5. 10-21
    19
  6. 10-22
    21
  7. 10-23
    16
issued
130
cancelled
144
in force at end
251
of these still in force
0

What this reporting period contains

130 messages have issue dates in this period, and 144 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 30 of 130 recorded messages (23%), the largest category group in this selection.

HYDROPAC accounts for 68 of 130 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

Exercises30
Other28
Incidents17
Nav aids13
Cable ops11
Missiles10
Derelicts5
Surveys5
Piracy4
Quakes3
Containers2
Icebergs2

Issued · by sea

North Pacific Ocean13
South Atlantic Ocean7
Indian Ocean7
North Sea6
North Atlantic Ocean6
South Pacific Ocean5
South China Sea4
Coral Sea4

HYDROPAC 68 · HYDROLANT 43 · NAVAREA XII 13 · HYDROARC 2 · NAVAREA IV 2 · USGS earthquakes 2

Issued · 130

Cancelled · 144

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-W42 (2011-10-17 to 2011-10-23) · seahazards