Navigational warnings on 2012-03-21

UTC day · today

issued
20
cancelled
11
in force at end
300
of these still in force
0

What this reporting period contains

20 messages have issue dates in this period, and 11 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 accounts for 7 of 20 recorded messages (35%), the largest category group in this selection.

HYDROPAC accounts for 14 of 20 recorded messages (70%), 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

Exercises7
Incidents4
Derelicts3
Missiles2
Nav aids1
Icebergs1
Cable ops1
Other1

Issued · by sea

South Atlantic Ocean3
South China Sea1
Indian Ocean1
Arabian Sea1
Philippine Sea1
Yellow Sea1
North Atlantic Ocean1
North Pacific Ocean1

HYDROPAC 14 · HYDROLANT 4 · HYDROARC 1 · NAVAREA IV 1

Issued · 20

Cancelled · 11

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 2012-03-21 · seahazards