Navigational warnings on 2015-08-20

UTC day · today

issued
36
cancelled
48
in force at end
370
of these still in force
0

What this reporting period contains

36 messages have issue dates in this period, and 48 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, Nav aids tie for the largest recorded count, with 7 messages each.

HYDROPAC accounts for 14 of 36 recorded messages (39%), 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

Cable ops7
Nav aids7
Other6
Exercises4
Missiles4
Surveys2
Quakes2
Incidents2
Icebergs1
Derelicts1

Issued · by sea

South China Sea3
South Atlantic Ocean3
Arabian Sea2
Mediterranean Sea - Eastern Basin2
Gulf of Mexico1
Bering Sea1
South Pacific Ocean1
Coral Sea1

HYDROPAC 14 · HYDROLANT 10 · NAVAREA XII 4 · NAVAREA IV 4 · HYDROARC 2 · USGS earthquakes 2

Issued · 36

Cancelled · 48

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 2015-08-20 · seahazards