Navigational warnings, week 2011-W12

2011-03-21 to 2011-03-27 UTC

  1. 03-21
    18
  2. 03-22
    50
  3. 03-23
    37
  4. 03-24
    22
  5. 03-25
    23
  6. 03-26
    14
  7. 03-27
    22
issued
186
cancelled
176
in force at end
302
of these still in force
0

What this reporting period contains

186 messages have issue dates in this period, and 176 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 32 of 186 recorded messages (17%), the largest category group in this selection.

HYDROPAC accounts for 103 of 186 recorded messages (55%), 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

Exercises32
Incidents29
Piracy25
Other23
Quakes19
Nav aids16
Cable ops16
Missiles8
Surveys8
Derelicts7
Ordnance2
Containers1

Issued · by sea

North Pacific Ocean27
Arabian Sea21
South Atlantic Ocean17
South China Sea11
Mediterranean Sea - Eastern Basin7
Coral Sea6
Indian Ocean6
North Atlantic Ocean5

HYDROPAC 103 · HYDROLANT 50 · USGS earthquakes 19 · NAVAREA XII 5 · HYDROARC 5 · NAVAREA IV 4

Issued · 186

Cancelled · 176

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-W12 (2011-03-21 to 2011-03-27) · seahazards