Aids-to-navigation notices in the Indian Ocean

Lights extinguished, buoys off station, RACON/NAVTEX outages.

in force
4
last 12 months
8
vs previous 12 (2)
+300%
since 1998
467

Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so 2024–2026 are under-counted.

In force now · 4

  1. HYDROPAC 2330/26in force2026-08-14
    Four yellow buoys with flashing yellow light every 5 seconds established near 29-27.00S 114-52.18E.
    Eastern Indian Ocean · Australia
  2. AUSCOAST 273/26in force2026-08-14
    Four yellow surface buoys with flashing yellow light every 5 seconds established within 0.3 nautical miles of 29-27.00S 114-52.18E.
  3. HYDROPAC 2115/26in force2026-07-24
    Cliff Head platform at 29-26.99S 114-52.18E is unlit; the Hydropac warning 2088/26 is canceled.
    Eastern Indian Ocean · Australia
  4. AUSCOAST 253/26in force2026-07-24
    Cliff Head Platform light in position 29-26.99S 114-52.18E is unlit.

Longest in force

  1. AUSCOAST 253/26in force2026-07-24 · 29 d
    Cliff Head Platform light in position 29-26.99S 114-52.18E is unlit.
  2. HYDROPAC 2115/26in force2026-07-24 · 29 d
    Cliff Head platform at 29-26.99S 114-52.18E is unlit; the Hydropac warning 2088/26 is canceled.
    Eastern Indian Ocean · Australia
  3. AUSCOAST 273/26in force2026-08-14 · 8 d
    Four yellow surface buoys with flashing yellow light every 5 seconds established within 0.3 nautical miles of 29-27.00S 114-52.18E.
  4. HYDROPAC 2330/26in force2026-08-14 · 8 d
    Four yellow buoys with flashing yellow light every 5 seconds established near 29-27.00S 114-52.18E.
    Eastern Indian Ocean · Australia

By year

98
99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

By month (all years)

J
F
M
A
M
J
J
A
S
O
N
D

Other hazards in the Indian Ocean

Archive · 463 cancelled

  1. HYDROPAC 649/112011-03-01 → 2011-03-03
    Nga chart 74593 (1ST ed)
    Australia-west Coast
  2. HYDROPAC 612/112011-02-25 → 2011-02-26
    Nga chart 74510 (2ND ed)
    Australia-northwest Coast
  3. HYDROPAC 324/112011-01-27 → 2011-01-31
    Nga chart 74033 (1ST ed)
    Australia-northwest Coast
  4. HYDROPAC 229/112011-01-19 → 2011-04-23
    Nga chart 707 (2ND ed)
    Northeastern Indian Ocean
  5. HYDROPAC 184/112011-01-16 → 2011-01-17
    Nga chart 74016 (3RD ed)
    Australia-northwest Coast
  6. HYDROPAC 2914/102010-12-26 → 2011-04-05
    Nga chart 74520 (2ND ed)
    Australia-northwest Coast
  7. HYDROPAC 2478/102010-11-17 → 2010-12-26
    Nga chart 74021 (7TH ed)
    Australia-northwest Coast
  8. HYDROPAC 2454/102010-11-13 → 2010-11-17
    Nga chart 74021 (7TH ed) 1. mooring buoys established in: a. 20-03.1S 113-36.1E
    Australia-northwest Coast
  9. HYDROPAC 1996/102010-09-28 → 2010-09-29
    Nga chart 74520 (2ND ed)
    Australia-northwest Coast
  10. HYDROPAC 1919/102010-09-20 → 2010-09-21
    Nga chart 74030 (6TH ed)
    Australia-southwest Coast
  11. HYDROPAC 1826/102010-09-09 → 2010-09-10
    Nga chart 61300 (2ND ed)
    Western Indian Ocean
  12. HYDROPAC 1707/102010-08-22 → 2010-08-28
    Nga chart 74033 (1ST ed)
    Australia-northwest Coast
  13. HYDROPAC 1657/102010-08-16 → 2010-08-21
    Nga chart 74520 (2ND ed)
    Australia-northwest Coast
  14. HYDROPAC 1607/102010-08-09 → 2010-08-14
    Nga chart 74027 (9TH ed)
    Australia-southwest Coast
  15. HYDROPAC 1157/102010-06-03 → 2010-06-04
    Nga chart 74030 (6TH ed)
    Australia-southwest Coast
  16. HYDROPAC 744/102010-04-11 → 2010-04-13
    Nga chart 74520 (2ND ed)
    Australia-northwest Coast
  17. HYDROPAC 304/102010-02-15 → 2010-02-20
    Nga chart 74054 (2ND ed)
    Australia-southwest Coast
  18. HYDROPAC 110/102010-01-20 → 2010-01-21
    Nga chart 74593 (1ST ed)
    Australia-west Coast
  19. HYDROPAC 2172/092009-11-23 → 2009-11-28
    Nga chart 74033 (1ST ed)
  20. HYDROPAC 1679/092009-09-17 → 2009-09-19
    Rottnest island light 32-00.5S 115-30.1E unlit
  21. HYDROPAC 1553/092009-08-29 → 2009-08-30
    Nga chart 74492 (7TH ed)
  22. HYDROPAC 1386/092009-08-04 → 2009-08-08
    Nga chart 74593 (1ST ed)
  23. HYDROPAC 1319/092009-07-23 → 2009-07-24
    Nga chart 74492 (7TH ed)
  24. HYDROPAC 1201/092009-06-29 → 2009-07-04
    Nga chart 74527 (2ND ed)
  25. HYDROPAC 1074/092009-06-08 → 2009-06-12
    Nga chart 74020 (4TH ed)
  26. HYDROPAC 617/092009-03-25 → 2009-05-23
    Nga chart 74560 (10TH ed)
  27. HYDROPAC 314/092009-02-09 → 2009-02-09
    Nga chart 74590 (2ND ed)
  28. HYDROPAC 182/092009-01-22 → 2009-01-22
    Karratha dgps station 20-42.4S 116-47.0E inoperative
  29. HYDROPAC 140/092009-01-16 → 2009-01-24
    Nga chart 74550 (4TH ed)
  30. HYDROPAC 107/092009-01-13 → 2009-01-13
    Nga chart 74593 (1ST ed)
  31. HYDROPAC 61/092009-01-07 → 2009-01-08
    Nga chart 74485 (3RD ed)
  32. HYDROPAC 47/092009-01-06 → 2009-01-06
    Karratha dgps station 20-42.4S 116-47.0E inoperative
  33. HYDROPAC 2312/082008-11-25 → 2009-03-28
    Nga chart 74021 (7TH ed)
  34. HYDROPAC 2006/082008-10-14 → 2008-10-16
    Nga chart 74485 (3RD ed)
  35. HYDROPAC 1851/082008-09-21 → 2008-09-22
    Nga chart 74560 (10TH ed)
  36. HYDROPAC 1697/082008-08-31 → 2008-09-06
    Karratha dgps station 20-42.4S 116-47.0E inoperative
  37. HYDROPAC 1670/082008-08-28 → 2008-08-28
    Nga chart 74020 (4TH ed)
  38. HYDROPAC 1609/082008-08-22 → 2008-08-26
    Nga chart 74593 (1ST ed)
  39. HYDROPAC 1595/082008-08-20 → 2008-08-23
    Nga chart 74493 (3RD ed)
  40. HYDROPAC 615/082008-04-02 → 2008-04-07
    Nga chart 74560 (10TH ed)
  41. HYDROPAC 560/082008-03-27 → 2009-07-11
    Nga chart 74027 (9TH ed)
  42. HYDROPAC 552/082008-03-26 → 2008-03-29
    Nga chart 74027 (9TH ed)
  43. HYDROPAC 286/082008-02-14 → 2008-02-16
    Nga chart 74033 (1ST ed)
  44. HYDROPAC 217/082008-02-04 → 2008-02-06
    Gantheaume point light 17-59.0S 122-11.0E unlit
  45. HYDROPAC 80/082008-01-16 → 2008-01-19
    Nga chart 74033 (0 ed)
  46. HYDROPAC 38/082008-01-08 → 2008-02-23
    Nga chart 61040 (6TH ed)
  47. HYDROPAC 14/082008-01-03 → 2008-01-29
    Nga chart 61003 (17TH ed)
  48. HYDROPAC 1280/072007-07-24 → 2008-02-10
    Nga chart 74020 (4TH ed)
  49. HYDROPAC 1212/072007-07-12 → 2007-07-13
    Nga chart 74015 (1ST ed)
  50. HYDROPAC 886/072007-05-17 → 2007-05-20
    RACON at maatsuyker island light 43-39.4S 146-16.4E temporarily discontinued

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts and your national MSI service.

Aids-to-navigation notices in the Indian Ocean — page 7 · seahazards