Navigational warnings on 2017-07-20

UTC day · today

issued
33
cancelled
37
in force at end
462
of these still in force
0

What this reporting period contains

33 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.

Other accounts for 9 of 33 recorded messages (27%), the largest category group in this selection.

HYDROLANT accounts for 14 of 33 recorded messages (42%), 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

Other9
Incidents8
Nav aids5
Exercises3
Quakes3
Surveys2
Derelicts1
Missiles1
Icebergs1

Issued · by sea

South China Sea3
North Pacific Ocean3
South Atlantic Ocean2
Caribbean Sea2
Aegean Sea2
North Sea1
Bay of Bengal1
English Channel1

HYDROLANT 14 · HYDROPAC 12 · NAVAREA IV 3 · USGS earthquakes 2 · NAVAREA XII 1 · HYDROARC 1

Issued · 33

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 2017-07-20 · seahazards