Navigational warnings, week 2011-W20

2011-05-16 to 2011-05-22 UTC

  1. 05-16
    13
  2. 05-17
    28
  3. 05-18
    26
  4. 05-19
    16
  5. 05-20
    17
  6. 05-21
    13
  7. 05-22
    20
issued
133
cancelled
151
in force at end
276
of these still in force
0

What this reporting period contains

133 messages have issue dates in this period, and 151 have cancellation dates in it. A cancellation can close a message issued earlier; subtracting these totals does not give a count of new incidents.

Incidents accounts for 24 of 133 recorded messages (18%), the largest category group in this selection.

HYDROPAC accounts for 72 of 133 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

Incidents24
Exercises23
Cable ops20
Other14
Nav aids11
Quakes11
Piracy10
Surveys5
Missiles5
Derelicts4
Icebergs2
Containers1
Spills1
Ordnance1
Volcanic1

Issued · by sea

South Atlantic Ocean20
North Pacific Ocean14
South Pacific Ocean13
Indian Ocean8
Philippine Sea5
North Sea4
Japan Sea3
North Atlantic Ocean3

HYDROPAC 72 · HYDROLANT 37 · USGS earthquakes 11 · NAVAREA IV 5 · HYDROARC 4 · NAVAREA XII 3 · NOAA IncidentNews 1

Issued · 133

Cancelled · 151

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-W20 (2011-05-16 to 2011-05-22) · seahazards