Navigational warnings on 2011-08-13

UTC day · today

issued
20
cancelled
30
in force at end
229
of these still in force
0

What this reporting period contains

20 messages have issue dates in this period, and 30 have cancellation dates in it. A cancellation can close a message issued earlier; subtracting these totals does not give a count of new incidents.

Cable ops, Incidents tie for the largest recorded count, with 6 messages each.

HYDROLANT accounts for 9 of 20 recorded messages (45%), 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

Incidents6
Cable ops6
Nav aids2
Quakes2
Derelicts1
Surveys1
Other1
Exercises1

Issued · by sea

South Atlantic Ocean4
North Pacific Ocean3
South Pacific Ocean2
Coral Sea1
South China Sea1
North Sea1
Mozambique Channel1
The Northwestern Passages1

HYDROLANT 9 · HYDROPAC 8 · USGS earthquakes 2 · HYDROARC 1

Issued · 20

Cancelled · 30

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

Navigational warnings on 2011-08-13 · seahazards