Navigational warnings, week 2012-W14

2012-04-02 to 2012-04-08 UTC

issued: 161
cancelled: 152
in force at end: 277
of these still in force: 0

What this reporting period contains

161 messages have issue dates in this period, and 152 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 39 of 161 recorded messages (24%), the largest category group in this selection.

HYDROPAC accounts for 72 of 161 recorded messages (45%), 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	39
Incidents	31
Other	27
Nav aids	13
Cable ops	11
Derelicts	9
Missiles	8
Icebergs	8
Surveys	5
Quakes	3
Piracy	3
Debris	2
Containers	2

Issued · by sea

North Pacific Ocean	24
South Atlantic Ocean	11
North Atlantic Ocean	10
South China Sea	7
South Pacific Ocean	6
Mediterranean Sea - Eastern Basin	5
Gulf of St. Lawrence	5
Black Sea	4

HYDROPAC 72 · HYDROLANT 52 · NAVAREA XII 16 · NAVAREA IV 14 · HYDROARC 4 · USGS earthquakes 3

Issued · 161

Cancelled · 152

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