Navigational warnings, week 2011-W46

2011-11-14 to 2011-11-20 UTC

issued: 140
cancelled: 137
in force at end: 266
of these still in force: 0

What this reporting period contains

140 messages have issue dates in this period, and 137 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, Nav aids tie for the largest recorded count, with 24 messages each.

HYDROLANT, HYDROPAC tie for the largest recorded count, with 54 messages each.

Separate updates to the same activity count as separate messages. The original records below show what was reported and when.

Issued · by type

Exercises	24
Nav aids	24
Incidents	22
Cable ops	21
Other	19
Quakes	11
Missiles	8
Derelicts	4
Piracy	4
Surveys	2
Wrecks	1

Issued · by sea

North Pacific Ocean	17
South Atlantic Ocean	12
North Atlantic Ocean	12
South Pacific Ocean	7
North Sea	5
Philippine Sea	4
Inner Seas off the West Coast of Scotland	3
Caribbean Sea	2

HYDROLANT 54 · HYDROPAC 54 · NAVAREA IV 12 · USGS earthquakes 11 · NAVAREA XII 5 · HYDROARC 4

Issued · 140

Cancelled · 137

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