Navigational warnings, week 2017-W12

2017-03-20 to 2017-03-26 UTC

  1. 03-20
    37
  2. 03-21
    33
  3. 03-22
    35
  4. 03-23
    24
  5. 03-24
    41
  6. 03-25
    29
  7. 03-26
    18
issued
217
cancelled
216
in force at end
455
of these still in force
0

What this reporting period contains

217 messages have issue dates in this period, and 216 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, Incidents tie for the largest recorded count, with 44 messages each.

HYDROPAC accounts for 111 of 217 recorded messages (51%), 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

Exercises44
Incidents44
Other41
Surveys23
Icebergs16
Nav aids14
Missiles8
Cable ops7
Piracy6
Derelicts6
Containers3
Spills1
Restricted1
Quakes1
Volcanic1
Ordnance1

Issued · by sea

North Atlantic Ocean19
North Pacific Ocean15
South China Sea15
South Atlantic Ocean13
Mediterranean Sea - Eastern Basin11
Indian Ocean9
Southern Ocean7
Arabian Sea7

HYDROPAC 111 · HYDROLANT 81 · NAVAREA IV 18 · NAVAREA XII 3 · HYDROARC 2 · USGS earthquakes 1 · NOAA IncidentNews 1

Issued · 217

Cancelled · 216

Not for navigation. Counts include only warnings we display; ongoing search-and-rescue traffic is excluded until 30 days after it closes.

Navigational warnings, week 2017-W12 (2017-03-20 to 2017-03-26) · seahazards