Navigational warnings on 2016-12-20

UTC day · today

issued
25
cancelled
21
in force at end
518
of these still in force
0

What this reporting period contains

25 messages have issue dates in this period, and 21 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 6 of 25 recorded messages (24%), the largest category group in this selection.

HYDROPAC accounts for 11 of 25 recorded messages (44%), 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

Other6
Incidents5
Quakes4
Wrecks2
Nav aids2
Icebergs2
Exercises2
Derelicts1
Surveys1

Issued · by sea

Solomon Sea4
South China Sea3
Hudson Bay2
Andaman or Burma Sea1
South Atlantic Ocean1
Black Sea1
Indian Ocean1
South Pacific Ocean1

HYDROPAC 11 · HYDROLANT 7 · USGS earthquakes 4 · NAVAREA IV 2 · HYDROARC 1

Issued · 25

Cancelled · 21

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 2016-12-20 · seahazards