Navigational warnings on 2013-11-20

UTC day · today

issued
45
cancelled
30
in force at end
374
of these still in force
0

What this reporting period contains

45 messages have issue dates in this period, and 30 have cancellation dates in it. A cancellation can close a message issued earlier; subtracting these totals does not give a count of new incidents.

Nav aids accounts for 14 of 45 recorded messages (31%), the largest category group in this selection.

HYDROLANT accounts for 23 of 45 recorded messages (51%), 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

Nav aids14
Exercises10
Incidents6
Missiles5
Other3
Cable ops2
Surveys1
Derelicts1
Volcanic1
Quakes1
Icebergs1

Issued · by sea

South Atlantic Ocean7
North Atlantic Ocean5
Yellow Sea3
South China Sea2
North Pacific Ocean2
Irish Sea and St. George's Channel2
Andaman or Burma Sea1
Tyrrhenian Sea1

HYDROLANT 23 · HYDROPAC 14 · NAVAREA IV 4 · HYDROARC 2 · NAVAREA XII 1 · USGS earthquakes 1

Issued · 45

Cancelled · 30

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 2013-11-20 · seahazards