Navigational warnings, week 2012-W48

2012-11-26 to 2012-12-02 UTC

issued: 181
cancelled: 174
in force at end: 311
of these still in force: 0

What this reporting period contains

181 messages have issue dates in this period, and 174 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 37 of 181 recorded messages (20%), the largest category group in this selection.

HYDROPAC accounts for 78 of 181 recorded messages (43%), 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

Other	37
Exercises	30
Nav aids	27
Incidents	25
Cable ops	16
Derelicts	9
Icebergs	8
Quakes	7
Missiles	7
Surveys	6
Ordnance	2
Debris	2
Restricted	2
Piracy	1
Wrecks	1
Containers	1

Issued · by sea

South Atlantic Ocean	17
North Pacific Ocean	15
Indian Ocean	11
North Atlantic Ocean	10
Arabian Sea	7
South China Sea	7
North Sea	7
Coral Sea	6

HYDROPAC 78 · HYDROLANT 65 · NAVAREA IV 18 · NAVAREA XII 8 · USGS earthquakes 7 · HYDROARC 5

Issued · 181

Cancelled · 174

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