Navigational warnings on 2017-04-23

UTC day · today

issued
19
cancelled
20
in force at end
378
of these still in force
0

What this reporting period contains

19 messages have issue dates in this period, and 20 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 6 of 19 recorded messages (32%), the largest category group in this selection.

HYDROLANT accounts for 12 of 19 recorded messages (63%), 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

Exercises6
Incidents4
Icebergs2
Nav aids2
Quakes2
Other2
Surveys1

Issued · by sea

North Atlantic Ocean5
South Pacific Ocean3
South China Sea3
Alboran Sea2
Southern Ocean1
South Atlantic Ocean1
Strait of Gibraltar1

HYDROLANT 12 · HYDROPAC 4 · USGS earthquakes 2 · NAVAREA IV 1

Issued · 19

Cancelled · 20

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 2017-04-23 · seahazards