Navigational warnings on 2011-09-17

UTC day · today

issued
20
cancelled
43
in force at end
278
of these still in force
0

What this reporting period contains

20 messages have issue dates in this period, and 43 have cancellation dates in it. A cancellation can close a message issued earlier; subtracting these totals does not give a count of new incidents.

Other accounts for 6 of 20 recorded messages (30%), the largest category group in this selection.

HYDROLANT, HYDROPAC tie for the largest recorded count, with 6 messages each.

Separate updates to the same activity count as separate messages. The original records below show what was reported and when.

Issued · by type

Other6
Missiles5
Incidents3
Piracy1
Cable ops1
Wrecks1
Derelicts1
Nav aids1
Quakes1

Issued · by sea

North Atlantic Ocean4
South Atlantic Ocean2
North Pacific Ocean2
Indian Ocean1
The Northwestern Passages1
Arabian Sea1

HYDROLANT 6 · HYDROPAC 6 · HYDROARC 3 · NAVAREA IV 3 · NAVAREA XII 1 · USGS earthquakes 1

Issued · 20

Cancelled · 43

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 2011-09-17 · seahazards