Navigational warnings, week 2010-W47

2010-11-22 to 2010-11-28 UTC

issued: 159
cancelled: 166
in force at end: 339
of these still in force: 0

What this reporting period contains

159 messages have issue dates in this period, and 166 have cancellation dates in it. A cancellation can close a message issued earlier; subtracting these totals does not give a count of new incidents.

Exercises accounts for 34 of 159 recorded messages (21%), the largest category group in this selection.

HYDROPAC accounts for 92 of 159 recorded messages (58%), 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

Exercises	34
Incidents	25
Other	22
Nav aids	18
Piracy	18
Cable ops	16
Missiles	8
Quakes	6
Surveys	4
Derelicts	3
Wrecks	2
Debris	2
Containers	1

Issued · by sea

Arabian Sea	19
South Atlantic Ocean	15
North Pacific Ocean	11
North Sea	9
South Pacific Ocean	8
Indian Ocean	7
Philippine Sea	6
North Atlantic Ocean	4

HYDROPAC 92 · HYDROLANT 51 · USGS earthquakes 6 · NAVAREA XII 5 · NAVAREA IV 3 · HYDROARC 2

Issued · 159

Cancelled · 166

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