Navigational warnings on 2013-08-17

UTC day · today

issued
21
cancelled
36
in force at end
341
of these still in force
0

What this reporting period contains

21 messages have issue dates in this period, and 36 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 7 of 21 recorded messages (33%), the largest category group in this selection.

HYDROLANT accounts for 11 of 21 recorded messages (52%), 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

Incidents7
Cable ops3
Other3
Quakes1
Nav aids1
Derelicts1
Piracy1
Missiles1
Surveys1
Icebergs1
Exercises1

Issued · by sea

Indian Ocean3
North Atlantic Ocean3
Singapore Strait2
South Atlantic Ocean2
Norwegian Sea1
Gulf of Mexico1
Labrador Sea1
Davis Strait1

HYDROLANT 11 · HYDROPAC 7 · NAVAREA IV 2 · USGS earthquakes 1

Issued · 21

Cancelled · 36

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

Navigational warnings on 2013-08-17 · seahazards