Navigational warnings, week 2016-W08

2016-02-22 to 2016-02-28 UTC

issued: 152
cancelled: 171
in force at end: 352
of these still in force: 0

What this reporting period contains

152 messages have issue dates in this period, and 171 have cancellation dates in it. A cancellation can close a message issued earlier; subtracting these totals does not give a count of new incidents.

Incidents accounts for 37 of 152 recorded messages (24%), the largest category group in this selection.

HYDROPAC accounts for 70 of 152 recorded messages (46%), 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

Incidents	37
Exercises	36
Other	22
Missiles	11
Nav aids	10
Cable ops	8
Icebergs	8
Derelicts	7
Quakes	5
Surveys	4
Ordnance	2
Spills	1
Storms	1

Issued · by sea

North Atlantic Ocean	16
North Pacific Ocean	15
Mediterranean Sea - Eastern Basin	12
Black Sea	8
South China Sea	8
Gulf of Mexico	5
Arabian Sea	5
Southern Ocean	4

HYDROPAC 70 · HYDROLANT 52 · NAVAREA IV 18 · USGS earthquakes 5 · NAVAREA XII 5 · HYDROARC 1 · NOAA IncidentNews 1

Issued · 152

Cancelled · 171

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