Navigational warnings, week 2017-W21

2017-05-22 to 2017-05-28 UTC

  1. 05-22
    31
  2. 05-23
    43
  3. 05-24
    32
  4. 05-25
    27
  5. 05-26
    44
  6. 05-27
    24
  7. 05-28
    24
issued
225
cancelled
198
in force at end
459
of these still in force
0

What this reporting period contains

225 messages have issue dates in this period, and 198 have cancellation dates in it. A cancellation can close a message issued earlier; subtracting these totals does not give a count of new incidents.

Incidents accounts for 62 of 225 recorded messages (28%), the largest category group in this selection.

HYDROPAC accounts for 98 of 225 recorded messages (44%), 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

Incidents62
Other45
Exercises26
Nav aids24
Surveys21
Missiles10
Icebergs7
Wrecks6
Quakes6
Spills5
Derelicts5
Ordnance2
Piracy2
Containers2
Restricted1
Cable ops1

Issued · by sea

North Pacific Ocean25
North Atlantic Ocean21
Mediterranean Sea - Eastern Basin16
South Atlantic Ocean11
South China Sea11
South Pacific Ocean10
North Sea7
Gulf of Mexico6

HYDROPAC 98 · HYDROLANT 79 · NAVAREA IV 22 · NAVAREA XII 11 · USGS earthquakes 6 · NOAA IncidentNews 5 · HYDROARC 4

Issued · 225

Cancelled · 198

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-W21 (2017-05-22 to 2017-05-28) · seahazards