Navigational warnings, week 2014-W17

2014-04-21 to 2014-04-27 UTC

issued: 152
cancelled: 147
in force at end: 384
of these still in force: 0

What this reporting period contains

152 messages have issue dates in this period, and 147 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 152 recorded messages (21%), the largest category group in this selection.

HYDROPAC accounts for 71 of 152 recorded messages (47%), 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
Other	30
Incidents	28
Nav aids	14
Derelicts	12
Missiles	8
Icebergs	8
Quakes	6
Cable ops	6
Surveys	3
Piracy	2
Wrecks	2
Spills	1

Issued · by sea

North Pacific Ocean	13
South Pacific Ocean	11
South Atlantic Ocean	8
North Atlantic Ocean	8
Philippine Sea	7
North Sea	6
South China Sea	6
Mediterranean Sea - Eastern Basin	5

HYDROPAC 71 · HYDROLANT 43 · NAVAREA IV 18 · HYDROARC 7 · USGS earthquakes 6 · NAVAREA XII 6 · NOAA IncidentNews 1

Issued · 152

Cancelled · 147

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