Navigational warnings, week 2017-W15

2017-04-10 to 2017-04-16 UTC

  1. 04-10
    23
  2. 04-11
    21
  3. 04-12
    20
  4. 04-13
    22
  5. 04-14
    40
  6. 04-15
    26
  7. 04-16
    15
issued
167
cancelled
141
in force at end
432
of these still in force
0

What this reporting period contains

167 messages have issue dates in this period, and 141 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 42 of 167 recorded messages (25%), the largest category group in this selection.

HYDROPAC accounts for 72 of 167 recorded messages (43%), 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

Incidents42
Other29
Surveys20
Nav aids18
Exercises17
Icebergs14
Missiles7
Quakes6
Spills3
Wrecks3
Piracy3
Derelicts2
Cable ops1
Debris1
Ordnance1

Issued · by sea

South Atlantic Ocean17
North Pacific Ocean14
North Atlantic Ocean13
Mediterranean Sea - Eastern Basin12
Southern Ocean8
South Pacific Ocean8
Indian Ocean7
Philippine Sea6

HYDROPAC 72 · HYDROLANT 70 · NAVAREA IV 11 · USGS earthquakes 6 · NAVAREA XII 3 · NOAA IncidentNews 3 · HYDROARC 2

Issued · 167

Cancelled · 141

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 2017-W15 (2017-04-10 to 2017-04-16) · seahazards