Navigational warnings on 2017-04-18

UTC day · today

issued
36
cancelled
59
in force at end
411
of these still in force
0

What this reporting period contains

36 messages have issue dates in this period, and 59 have cancellation dates in it. A cancellation can close a message issued earlier; subtracting these totals does not give a count of new incidents.

Other accounts for 10 of 36 recorded messages (28%), the largest category group in this selection.

HYDROPAC accounts for 21 of 36 recorded messages (58%), 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

Other10
Exercises9
Surveys3
Incidents3
Missiles2
Icebergs2
Cable ops2
Derelicts2
Piracy1
Debris1
Quakes1

Issued · by sea

North Pacific Ocean5
Celtic Sea2
Bay of Bengal2
Indian Ocean1
Red Sea1
Southern Ocean1
Aegean Sea1
South China Sea1

HYDROPAC 21 · HYDROLANT 8 · NAVAREA IV 4 · NAVAREA XII 2 · USGS earthquakes 1

Issued · 36

Cancelled · 59

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 2017-04-18 · seahazards