Navigational warnings on 2012-04-21

UTC day · today

issued
17
cancelled
30
in force at end
295
of these still in force
0

What this reporting period contains

17 messages have issue dates in this period, and 30 have cancellation dates in it. A cancellation can close a message issued earlier; subtracting these totals does not give a count of new incidents.

Cable ops, Incidents tie for the largest recorded count, with 4 messages each.

HYDROPAC accounts for 9 of 17 recorded messages (53%), 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

Incidents4
Cable ops4
Quakes3
Exercises3
Piracy1
Icebergs1
Other1

Issued · by sea

South Atlantic Ocean4
South Pacific Ocean4
Arabian Sea2
Andaman or Burma Sea1
Norwegian Sea1
Indian Ocean1
Labrador Sea1
Philippine Sea1

HYDROPAC 9 · HYDROLANT 4 · USGS earthquakes 3 · NAVAREA IV 1

Issued · 17

Cancelled · 30

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 2012-04-21 · seahazards