Navigational warnings, week 2017-W04

2017-01-23 to 2017-01-29 UTC

  1. 01-23
    23
  2. 01-24
    37
  3. 01-25
    30
  4. 01-26
    25
  5. 01-27
    41
  6. 01-28
    21
  7. 01-29
    14
issued
191
cancelled
283
in force at end
430
of these still in force
0

What this reporting period contains

191 messages have issue dates in this period, and 283 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 44 of 191 recorded messages (23%), the largest category group in this selection.

HYDROPAC accounts for 85 of 191 recorded messages (45%), 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
Other35
Incidents29
Nav aids18
Icebergs15
Surveys15
Cable ops11
Derelicts9
Missiles7
Wrecks5
Quakes2
Debris1

Issued · by sea

North Pacific Ocean20
South Atlantic Ocean14
North Atlantic Ocean12
Philippine Sea8
Mediterranean Sea - Eastern Basin8
Southern Ocean7
South China Sea7
Labrador Sea7

HYDROPAC 85 · HYDROLANT 73 · NAVAREA IV 18 · NAVAREA XII 12 · USGS earthquakes 2 · HYDROARC 1

Issued · 191

Cancelled · 283

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-W04 (2017-01-23 to 2017-01-29) · seahazards