Navigational warnings on 2017-04-08

UTC day · today

issued
20
cancelled
37
in force at end
410
of these still in force
0

What this reporting period contains

20 messages have issue dates in this period, and 37 have cancellation dates in it. A cancellation can close a message issued earlier; subtracting these totals does not give a count of new incidents.

Surveys accounts for 5 of 20 recorded messages (25%), the largest category group in this selection.

HYDROLANT, HYDROPAC tie for the largest recorded count, with 6 messages each.

Separate updates to the same activity count as separate messages. The original records below show what was reported and when.

Issued · by type

Surveys5
Other4
Incidents3
Icebergs2
Quakes2
Restricted1
Exercises1
Piracy1
Cable ops1

Issued · by sea

Caribbean Sea2
Philippine Sea2
North Pacific Ocean2
South Atlantic Ocean2
North Atlantic Ocean2
Bay of Bengal1
Southern Ocean1
Arabian Sea1

HYDROLANT 6 · HYDROPAC 6 · NAVAREA IV 4 · NAVAREA XII 2 · USGS earthquakes 2

Issued · 20

Cancelled · 37

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 2017-04-08 · seahazards