Navigational warnings on 2017-04-11

UTC day · today

issued
21
cancelled
22
in force at end
416
of these still in force
0

What this reporting period contains

21 messages have issue dates in this period, and 22 have cancellation dates in it. A cancellation can close a message issued earlier; subtracting these totals does not give a count of new incidents.

Incidents accounts for 7 of 21 recorded messages (33%), the largest category group in this selection.

HYDROLANT, HYDROPAC tie for the largest recorded count, with 9 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

Incidents7
Other5
Surveys3
Icebergs2
Exercises1
Quakes1
Missiles1
Derelicts1

Issued · by sea

South Atlantic Ocean5
North Pacific Ocean4
North Atlantic Ocean3
Philippine Sea1
Southern Ocean1
Java Sea1

HYDROLANT 9 · HYDROPAC 9 · NAVAREA XII 1 · NAVAREA IV 1 · USGS earthquakes 1

Issued · 21

Cancelled · 22

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 2017-04-11 · seahazards