Navigational warnings, week 2015-W47

2015-11-16 to 2015-11-22 UTC

issued: 174
cancelled: 197
in force at end: 364
of these still in force: 0

What this reporting period contains

174 messages have issue dates in this period, and 197 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 42 of 174 recorded messages (24%), the largest category group in this selection.

HYDROPAC accounts for 86 of 174 recorded messages (49%), 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	42
Incidents	33
Other	26
Nav aids	21
Surveys	11
Icebergs	10
Missiles	7
Quakes	7
Cable ops	6
Derelicts	6
Debris	2
Spills	1
Piracy	1
Storms	1

Issued · by sea

North Pacific Ocean	21
North Atlantic Ocean	12
Arabian Sea	8
Caribbean Sea	7
Bay of Bengal	7
Labrador Sea	7
South Atlantic Ocean	7
North Sea	7

HYDROPAC 86 · HYDROLANT 56 · NAVAREA IV 18 · USGS earthquakes 7 · NAVAREA XII 5 · HYDROARC 1 · NOAA IncidentNews 1

Issued · 174

Cancelled · 197

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