Navigational warnings on 2011-12-17

UTC day · today

issued
20
cancelled
25
in force at end
249
of these still in force
0

What this reporting period contains

20 messages have issue dates in this period, and 25 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, Nav aids tie for the largest recorded count, with 7 messages each.

HYDROLANT accounts for 12 of 20 recorded messages (60%), 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

Nav aids7
Cable ops7
Exercises2
Incidents2
Wrecks1
Containers1

Issued · by sea

North Pacific Ocean4
South Atlantic Ocean3
North Sea3
South China Sea1
North Atlantic Ocean1
Philippine Sea1
Irish Sea and St. George's Channel1
Celtic Sea1

HYDROLANT 12 · HYDROPAC 6 · NAVAREA XII 2

Issued · 20

Cancelled · 25

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 2011-12-17 · seahazards