Navigational warnings on 2017-05-20

UTC day · today

issued
17
cancelled
9
in force at end
426
of these still in force
0

What this reporting period contains

17 messages have issue dates in this period, and 9 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 4 of 17 recorded messages (24%), the largest category group in this selection.

HYDROLANT accounts for 8 of 17 recorded messages (47%), 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

Incidents4
Surveys3
Exercises3
Nav aids2
Quakes2
Missiles1
Cable ops1
Icebergs1

Issued · by sea

North Pacific Ocean4
South Atlantic Ocean4
South China Sea1
Celtic Sea1
Mediterranean Sea - Eastern Basin1
North Atlantic Ocean1
Arabian Sea1
Bay of Bengal1

HYDROLANT 8 · HYDROPAC 5 · USGS earthquakes 2 · NAVAREA XII 1 · NAVAREA IV 1

Issued · 17

Cancelled · 9

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 2017-05-20 · seahazards