Navigational warnings, week 2010-W37

2010-09-13 to 2010-09-19 UTC

issued: 123
cancelled: 139
in force at end: 293
of these still in force: 0

What this reporting period contains

123 messages have issue dates in this period, and 139 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 32 of 123 recorded messages (26%), the largest category group in this selection.

HYDROPAC accounts for 53 of 123 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

Exercises	32
Nav aids	22
Other	22
Incidents	14
Surveys	8
Missiles	8
Cable ops	7
Quakes	3
Piracy	3
Spills	2
Wrecks	1
Derelicts	1

Issued · by sea

North Pacific Ocean	12
North Atlantic Ocean	9
South Atlantic Ocean	7
South Pacific Ocean	5
Japan Sea	3
Laccadive Sea	3
Bay of Bengal	3
North Sea	3

HYDROPAC 53 · HYDROLANT 47 · NAVAREA IV 9 · NAVAREA XII 7 · USGS earthquakes 3 · HYDROARC 2 · NOAA IncidentNews 2

Issued · 123

Cancelled · 139

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