Navigational warnings, week 2011-W05

2011-01-31 to 2011-02-06 UTC

issued: 139
cancelled: 142
in force at end: 307
of these still in force: 0

What this reporting period contains

139 messages have issue dates in this period, and 142 have cancellation dates in it. A cancellation can close a message issued earlier; subtracting these totals does not give a count of new incidents.

Other accounts for 36 of 139 recorded messages (26%), the largest category group in this selection.

HYDROPAC accounts for 66 of 139 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

Other	36
Nav aids	22
Exercises	20
Cable ops	15
Incidents	12
Missiles	8
Quakes	7
Piracy	7
Surveys	4
Ordnance	3
Debris	2
Structures	2
Spills	1

Issued · by sea

Arabian Sea	11
North Pacific Ocean	8
South Pacific Ocean	8
South Atlantic Ocean	7
North Atlantic Ocean	6
North Sea	5
Indian Ocean	4
Inner Seas off the West Coast of Scotland	4

HYDROPAC 66 · HYDROLANT 46 · NAVAREA IV 11 · USGS earthquakes 7 · NAVAREA XII 5 · HYDROARC 3 · NOAA IncidentNews 1

Issued · 139

Cancelled · 142

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