Navigational warnings on 2017-01-31

UTC day · today

issued: 30
cancelled: 32
in force at end: 425
of these still in force: 0

What this reporting period contains

30 messages have issue dates in this period, and 32 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 8 of 30 recorded messages (27%), the largest category group in this selection.

HYDROPAC accounts for 12 of 30 recorded messages (40%), 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

Incidents	8
Exercises	4
Other	4
Spills	2
Icebergs	2
Surveys	2
Piracy	2
Missiles	2
Quakes	1
Derelicts	1
Volcanic	1
Nav aids	1

Issued · by sea

North Atlantic Ocean	6
Black Sea	3
North Pacific Ocean	3
Red Sea	2
Gulf of Mexico	1
Southern Ocean	1
South Pacific Ocean	1
North Sea	1

HYDROPAC 12 · HYDROLANT 10 · NAVAREA IV 4 · NOAA IncidentNews 2 · NAVAREA XII 1 · USGS earthquakes 1

Issued · 30

Cancelled · 32

Not for navigation. Counts include only warnings we display; ongoing search-and-rescue traffic is excluded until 30 days after it closes.