Aids-to-navigation notices in the South Atlantic Ocean

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

in force
17
last 12 months
20
vs previous 12 (5)
+300%
since 1998
1,959

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 · 17

  1. HYDROLANT 1505/26in force2026-08-05
    Araripe Light at 16-08.09S 038-57.86W is unlit until 31 Jan 2027.
    South Atlantic · Brazil
  2. HYDROLANT 1407/26in force2026-07-22
    The radiobeacon at Chui Light, Brazil, is off air until 17 Jan 27.
    South Atlantic · Brazil
  3. HYDROLANT 1258/26in force2026-06-27
    An ocean data buoy is temporarily established in the South Atlantic off Brazil at 32-14.29S 051-58.16W, with cancellation December 26.
    South Atlantic · Brazil
  4. HYDROLANT 942/26in force2026-05-13
    An ocean data acquisition buoy is established at 05-09.46S 035-09.81W in the South Atlantic off Brazil; this message cancels at 080001Z Nov 26.
    South Atlantic · Brazil
  5. HYDROLANT 906/26in force2026-05-08
    An ODAS buoy Bravo RN-L is temporarily established in the South Atlantic off Brazil at 04-53.00S 035-46.01W until 20 October.
    South Atlantic · Brazil
  6. HYDROLANT 900/26in force2026-05-07
    Tamandare Light in Brazil is unlit until November 2.
    South Atlantic · Brazil
  7. HYDROLANT 882/26in force2026-05-04
    Maceio light, 09-41.03S 035-43.38W, is unlit until 31 October; cancellation at 010001Z November 26.
    South Atlantic · Brazil
  8. HYDROLANT 810/26in force2026-04-23
    A yellow data buoy is established in the South Atlantic off Brazil at 17-58.12S 038-41.48W until October 19; message cancels October 26.
    South Atlantic · Brazil
  9. HYDROLANT 809/26in force2026-04-23
    An ODAS buoy is temporarily established in the South Atlantic off Brazil at 32-32.46S 052-06.03W until 31 Dec 2027; HYDROLANT 1946/25 canceled.
    South Atlantic · Brazil
  10. HYDROLANT 746/26in force2026-04-14
    A data buoy is temporarily established in the South Atlantic off Brazil at 21-34.20S 040-43.62W until 13 April 2027.
    South Atlantic · Brazil
  11. HYDROLANT 657/26in force2026-04-02
    Radar beacon at Cabo Sao Tome light is off air until 28 Sep.
    South Atlantic · Brazil
  12. HYDROLANT 638/26in force2026-03-31
    Ponta dos Meros light at 23-13.57S 044-20.83W is unlit until 26 September; cancel advisories.
    South Atlantic · Brazil
  13. HYDROLANT 628/26in force2026-03-30
    An ODAS buoy is established at 24-06.36S 045-38.78W; this message cancels 250001Z September 2026.
    South Atlantic · Brazil
  14. HYDROLANT 627/26in force2026-03-30
    Light at Laje da Conceicao, 24-14.18S 046-41.46W, is unlit until 24 September.
    South Atlantic · Brazil
  15. HYDROLANT 492/26in force2026-03-13
    Barra de Itabapoana light is unlit until 08 September 2026; previous warnings cancelled.
    South Atlantic · Brazil
  16. HYDROLANT 453/26in force2026-03-07
    Caete Light at 00-49S 046-36W is destroyed; message cancels on September 3, 2026.
    South Atlantic · Brazil
  17. HYDROLANT 434/26in force2026-03-05
    Ponta da Galheta light at 27-34.55S 048-24.99W is unlit until 31 August. Cancellation on 1 September 2026.
    South Atlantic · Brazil

Longest in force

  1. HYDROLANT 434/26in force2026-03-05 · 170 d
    Ponta da Galheta light at 27-34.55S 048-24.99W is unlit until 31 August. Cancellation on 1 September 2026.
    South Atlantic · Brazil
  2. HYDROLANT 453/26in force2026-03-07 · 168 d
    Caete Light at 00-49S 046-36W is destroyed; message cancels on September 3, 2026.
    South Atlantic · Brazil
  3. HYDROLANT 492/26in force2026-03-13 · 162 d
    Barra de Itabapoana light is unlit until 08 September 2026; previous warnings cancelled.
    South Atlantic · Brazil
  4. HYDROLANT 627/26in force2026-03-30 · 145 d
    Light at Laje da Conceicao, 24-14.18S 046-41.46W, is unlit until 24 September.
    South Atlantic · Brazil
  5. HYDROLANT 628/26in force2026-03-30 · 145 d
    An ODAS buoy is established at 24-06.36S 045-38.78W; this message cancels 250001Z September 2026.
    South Atlantic · Brazil

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
26

By month (all years)

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

Other hazards in the South Atlantic Ocean

Archive · 1,942 cancelled

  1. HYDROLANT 218/132013-01-25 → 2013-02-23
    Brazil-north Coast
  2. HYDROLANT 88/132013-01-09 → 2013-03-22
    Brazil-east Coast
  3. HYDROLANT 87/132013-01-09 → 2013-01-11
    Brazil-east Coast
  4. HYDROLANT 4/132013-01-02 → 2013-01-23
    Brazil-northeast Coast
  5. HYDROLANT 3032/122012-12-25 → 2013-04-30
    Brazil-north Coast
  6. HYDROLANT 2977/122012-12-18 → 2013-10-19
    Brazil-east Coast
  7. HYDROLANT 2937/122012-12-12 → 2012-12-14
    Brazil-northeast Coast
  8. HYDROLANT 2864/122012-12-04 → 2012-12-05
    Brazil-south Coast
  9. HYDROLANT 2835/122012-12-01 → 2012-12-02
    Brazil-east Coast
  10. HYDROLANT 2834/122012-12-01 → 2013-03-16
    Brazil-north Coast
  11. HYDROLANT 2825/122012-12-01 → 2012-12-12
    Brazil-south Coast
  12. HYDROLANT 2794/122012-11-27 → 2012-12-11
    Cancel this msg 11 dec 12
    Brazil-north Coast
  13. HYDROLANT 2793/122012-11-27 → 2012-11-28
    Brazil-east Coast
  14. HYDROLANT 2770/122012-11-23 → 2012-11-26
    Brazil-south Coast
  15. HYDROLANT 2769/122012-11-23 → 2012-12-01
    Brazil-northeast Coast
  16. HYDROLANT 2755/122012-11-21 → 2013-03-09
    Brazil-north Coast
  17. HYDROLANT 2735/122012-11-19 → 2013-04-24
    Angola
    Eastern South Atlantic
  18. HYDROLANT 2709/122012-11-17 → 2012-11-26
    Arquipelago de Fernando de Noronha
    Brazil-northeast Coast
  19. HYDROLANT 2694/122012-11-13 → 2012-11-24
    Brazil-south Coast
  20. HYDROLANT 2673/122012-11-11 → 2012-11-14
    Cancel HYDROLANT 2601/12(57), operations completed
    Brazil-south Coast
  21. HYDROLANT 2648/122012-11-09 → 2012-11-10
    Brazil-east Coast
  22. HYDROLANT 2580/122012-11-02 → 2012-11-02
    Brazil-east Coast
  23. HYDROLANT 2524/122012-10-27 → 2012-11-09
    Brazil-northeast Coast
  24. HYDROLANT 2493/122012-10-24 → 2012-10-31
    Brazil-east Coast
  25. HYDROLANT 2429/122012-10-18 → 2012-10-23
    Brazil-south Coast
  26. HYDROPAC 2845/122012-10-11 → 2012-10-11
    Cape town radio 33-40S 018-43E off air 111000Z to 111300Z oct
    South Africa · Radio Services
  27. HYDROLANT 2381/122012-10-11 → 2012-10-11
    Cape town radio 33-40S 018-43E off air 111000Z to 111300Z oct
    South Africa · Radio Services
  28. HYDROLANT 2379/122012-10-11 → 2012-11-01
    Brazil-south Coast
  29. HYDROLANT 2363/122012-10-09 → 2012-10-10
    Brazil-east Coast
  30. HYDROLANT 2323/122012-10-04 → 2012-11-29
    Brazil-south Coast
  31. HYDROLANT 2305/122012-10-03 → 2014-01-15
    Brazil-north Coast
  32. HYDROLANT 2251/122012-09-27 → 2012-10-26
    Brazil-north Coast
  33. HYDROLANT 2243/122012-09-26 → 2012-10-03
    Brazil-southeast Coast
  34. HYDROLANT 2103/122012-09-10 → 2012-11-20
    Namibia
    Eastern South Atlantic
  35. HYDROLANT 2094/122012-09-10 → 2012-09-12
    Brazil-northeast Coast
  36. HYDROLANT 2077/122012-09-07 → 2012-09-11
    Brazil-southeast Coast
  37. HYDROLANT 2064/122012-09-07 → 2012-09-22
    Brazil-east Coast
  38. HYDROLANT 2057/122012-09-06 → 2013-08-28
    Brazil-south Coast
  39. HYDROLANT 2056/122012-09-06 → 2012-09-08
    Brazil-south Coast
  40. HYDROLANT 2033/122012-09-03 → 2012-09-09
    Cancel HYDROLANT 2019/12
    Brazil-south Coast
  41. HYDROLANT 2019/122012-09-01 → 2012-09-03
    Brazil-south Coast
  42. HYDROLANT 2008/122012-08-31 → 2012-09-08
    Brazil-north Coast
  43. HYDROLANT 1908/122012-08-19 → 2012-09-20
    Brazil-northeast Coast
  44. HYDROLANT 1816/122012-08-08 → 2012-08-10
    Brazil-southeast Coast
  45. HYDROLANT 1791/122012-08-04 → 2012-08-08
    Uruguay
  46. HYDROLANT 1764/122012-08-02 → 2012-08-04
    Brazil-east Coast
  47. HYDROLANT 1654/122012-07-21 → 2012-07-28
    Brazil-east Coast
  48. HYDROLANT 1653/122012-07-21 → 2012-08-15
    Brazil-north Coast
  49. HYDROLANT 1600/122012-07-17 → 2012-07-18
    Brazil-east Coast
  50. HYDROLANT 1598/122012-07-17 → 2012-11-03
    500 meter berth requested
    Brazil-south Coast

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 South Atlantic Ocean — page 22 · seahazards