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
- HYDROLANT 1505/26in force2026-08-05Araripe Light at 16-08.09S 038-57.86W is unlit until 31 Jan 2027.South Atlantic · Brazil
- HYDROLANT 1407/26in force2026-07-22The radiobeacon at Chui Light, Brazil, is off air until 17 Jan 27.South Atlantic · Brazil
- HYDROLANT 1258/26in force2026-06-27An 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
- HYDROLANT 942/26in force2026-05-13An 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
- HYDROLANT 906/26in force2026-05-08An 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
- HYDROLANT 900/26in force2026-05-07Tamandare Light in Brazil is unlit until November 2.South Atlantic · Brazil
- HYDROLANT 882/26in force2026-05-04Maceio light, 09-41.03S 035-43.38W, is unlit until 31 October; cancellation at 010001Z November 26.South Atlantic · Brazil
- HYDROLANT 810/26in force2026-04-23A 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
- HYDROLANT 809/26in force2026-04-23An 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
- HYDROLANT 746/26in force2026-04-14A 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
- HYDROLANT 657/26in force2026-04-02Radar beacon at Cabo Sao Tome light is off air until 28 Sep.South Atlantic · Brazil
- HYDROLANT 638/26in force2026-03-31Ponta dos Meros light at 23-13.57S 044-20.83W is unlit until 26 September; cancel advisories.South Atlantic · Brazil
- HYDROLANT 628/26in force2026-03-30An ODAS buoy is established at 24-06.36S 045-38.78W; this message cancels 250001Z September 2026.South Atlantic · Brazil
- HYDROLANT 627/26in force2026-03-30Light at Laje da Conceicao, 24-14.18S 046-41.46W, is unlit until 24 September.South Atlantic · Brazil
- HYDROLANT 492/26in force2026-03-13Barra de Itabapoana light is unlit until 08 September 2026; previous warnings cancelled.South Atlantic · Brazil
- HYDROLANT 453/26in force2026-03-07Caete Light at 00-49S 046-36W is destroyed; message cancels on September 3, 2026.South Atlantic · Brazil
- HYDROLANT 434/26in force2026-03-05Ponta 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
- HYDROLANT 434/26in force2026-03-05 · 170 dPonta da Galheta light at 27-34.55S 048-24.99W is unlit until 31 August. Cancellation on 1 September 2026.South Atlantic · Brazil
- HYDROLANT 453/26in force2026-03-07 · 168 dCaete Light at 00-49S 046-36W is destroyed; message cancels on September 3, 2026.South Atlantic · Brazil
- HYDROLANT 492/26in force2026-03-13 · 162 dBarra de Itabapoana light is unlit until 08 September 2026; previous warnings cancelled.South Atlantic · Brazil
- HYDROLANT 627/26in force2026-03-30 · 145 dLight at Laje da Conceicao, 24-14.18S 046-41.46W, is unlit until 24 September.South Atlantic · Brazil
- HYDROLANT 628/26in force2026-03-30 · 145 dAn ODAS buoy is established at 24-06.36S 045-38.78W; this message cancels 250001Z September 2026.South Atlantic · Brazil
By month (all years)
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Other hazards in the South Atlantic Ocean
Archive · 1,942 cancelled
- HYDROLANT 2691/172017-09-03 → 2017-09-05Ponta de guaratiba light 23-04.9S 043-33.8W unlit until 28 feb 18Western South Atlantic · Brazil-south Coast
- HYDROLANT 2690/172017-09-03 → 2017-09-07Laje marambaia light 23-07.0S 043-50.2W unlit until 28 feb 18Western South Atlantic · Brazil-south Coast
- HYDROLANT 2592/172017-08-25 → 2017-09-20Juatinga light 23-17.6S 044-30.3W unlit until 20 feb 18Western South Atlantic · Brazil-south Coast
- HYDROLANT 2589/172017-08-25 → 2017-08-25Salinoplis light 00-36.9S 047-21.4W unlit until 22 feb 18Western South Atlantic · Brazil-north Coast
- HYDROLANT 2564/172017-08-23 → 2017-09-02Ilha escalvada light 20-42.2S 040-24.4W unlit until 19 feb 18Western South Atlantic · Brazil-east Coast
- HYDROLANT 2524/172017-08-17 → 2017-08-19Ilha da laje light 22-56.1S 043-08.8W unreliable until 13 feb 18Western South Atlantic · Brazil-south Coast
- HYDROLANT 2519/172017-08-16 → 2017-08-31Ponta corumbau light 16-53.7S 039-06.9W unlit until 12 feb 18Western South Atlantic · Brazil-east Coast
- HYDROLANT 2499/172017-08-15 → 2017-08-24Ilha de santana light 02-16.2S 043-37.4W unlit until 15 feb 18Western South Atlantic · Brazil-north Coast
- HYDROLANT 2476/172017-08-12 → 2017-08-20Ilha de coral light 27-56.0S 048-32.6W unlit until 07 feb 18Western South Atlantic · Brazil-south Coast
- HYDROLANT 2459/172017-08-10 → 2017-08-12Baia da traicao light 06-40.5S 034-56.0W unlit until 06 feb 18Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2443/172017-08-08 → 2017-08-26Soure light 00-44.5S 048-30.4W unlit until 03 feb 18Western South Atlantic · Brazil-north Coast
- HYDROLANT 2300/172017-07-25 → 2017-09-20Cabo de santo agostinho light 08-21.1S 034-56.8W unlit until 20 jan 18Western South Atlantic · Brazil-northeast Coast
- HYDROLANT 2246/172017-07-19 → 2017-09-24Ponta de mucuripe light 03-43.6S 038-28.3W range temporarily reduced to 15 miles until 14 jan 18Western South Atlantic · Brazil-north Coast
- HYDROLANT 2232/172017-07-18 → 2017-07-20Garcia d'avila light 12-34.7S 038-00.2W unreliable until 14 jan 18Western South Atlantic · Brazil-east Coast
- HYDROLANT 2224/172017-07-18 → 2017-11-25Radiobeacon at cabo santa marta light 28-36.3S 048-48.8W off air until 13 jan 18Western South Atlantic · Brazil-south Coast
- HYDROLANT 2159/172017-07-13 → 2017-09-14Ponta de calcanhar light 05-09.7S 035-29.2W unreliable until 09 janWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 2011/172017-06-30 → 2017-07-04Morro de sao paulo light 13-22.6S 038-54.9W unlitWestern South Atlantic · Brazil-east Coast
- HYDROLANT 1900/172017-06-19 → 2017-07-16Barreiras do prado light 17-17.2S 039-13.2W unlit until 16 decWestern South Atlantic · Brazil-east Coast
- HYDROLANT 1751/172017-06-03 → 2017-06-10Ponta dos naufragados light 27-50.1S 048-34.2W unlit until 29 novWestern South Atlantic · Brazil-south Coast
- HYDROLANT 1733/172017-06-02 → 2017-11-30Mundau light 03-10.6S 039-21.7W unlit until 29 novWestern South Atlantic · Brazil-north Coast
- HYDROLANT 1717/172017-06-01 → 2017-06-02Ponta da sela light 23-53.3S 045-27.7W unlit until 28 novWestern South Atlantic · Brazil-south Coast
- HYDROLANT 1691/172017-05-30 → 2017-06-01Swakopmund light 22-40.7S 014-31.5E unlitEastern South Atlantic · Namibia
- HYDROLANT 1667/172017-05-27 → 2017-05-29Pelican point light 22-53.5S 014-26.1E unlitEastern South Atlantic · Namibia
- HYDROLANT 1646/172017-05-26 → 2017-06-02Cabo de bacopari light 06-22.5S 034-59.6W unlit until 21 novWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 1613/172017-05-23 → 2017-05-31Sucuraca light 19-05.8S 039-43.4W unlit until 19 novWestern South Atlantic · Brazil-east Coast
- HYDROLANT 1589/172017-05-20 → 2017-11-16Ponta cajuais light 04-42.6S 037-21.6W unlit until 15 novWestern South Atlantic · Brazil-north Coast
- HYDROLANT 1552/172017-05-17 → 2017-05-17Coroa vermelha light 17-58.1S 039-12.4W unlit until 12 novWestern South Atlantic · Brazil-east Coast
- HYDROLANT 1551/172017-05-17 → 2017-05-19Aracati light 04-24.5S 037-46.2W unlit until 17 novWestern South Atlantic · Brazil-north Coast
- HYDROLANT 1536/172017-05-16 → 2017-09-20Ubatuba light 23-27.6S 045-01.2W unlit until 10 novWestern South Atlantic · Brazil-south Coast
- HYDROLANT 1483/172017-05-11 → 2017-05-17Ponta grossa light 23-46.6S 045-13.8W unlit until 06 novWestern South Atlantic · Brazil-south Coast
- HYDROLANT 1417/172017-05-04 → 2017-05-08Ilha da laje light 22-56.1S 043-08.8W unreliable until 31 octWestern South Atlantic · Brazil-south Coast
- HYDROLANT 1388/172017-05-02 → 2017-05-03Fort santa cruz light 22-56.3S 043-08.1W unlit until 29 octWestern South Atlantic · Brazil-south Coast
- HYDROLANT 1354/172017-04-28 → 2017-05-08Ubatuba light 23-27.6S 045-01.2W unlit until 25 octWestern South Atlantic · Brazil-south Coast
- HYDROLANT 1320/172017-04-26 → 2017-10-24Arquipelago de alcatrazes light 24-05.7S 045-42.2W unlit until 23 octWestern South Atlantic · Brazil-south Coast
- HYDROLANT 1311/172017-04-25 → 2017-05-08Barra do acu light 22-00.0S 040-59.2W unlitWestern South Atlantic · Brazil-southeast Coast
- HYDROLANT 1305/172017-04-24 → 2017-05-26Cabo de bacopari light 06-22.5S 034-59.6W unlit until 21 octWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 1188/172017-04-14 → 2017-07-28Ponta dos meros light 23-13.5S 044-20.8W unlit until 10 octWestern South Atlantic · Brazil-south Coast
- HYDROLANT 1187/172017-04-14 → 2017-04-16Cabo de santo agostinho light 08-21.1S 034-56.8W unlit until 10 octWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 1186/172017-04-14 → 2017-04-19Ilha do boi light 20-18.6S 040-16.9W unlit until 10 octWestern South Atlantic · Brazil-southeast Coast
- HYDROLANT 1177/172017-04-12 → 2017-04-18Araripe light 16-08.1S 038-57.9W unlit until 09 octWestern South Atlantic · Brazil-east Coast
- HYDROLANT 1118/172017-04-07 → 2017-04-12Ponta das conchas light 25-32.3S 048-17.4W unlit until 03 octWestern South Atlantic · Brazil-south Coast
- HYDROLANT 1015/172017-03-29 → 2017-03-31Ilha da laje light 22-56.1S 043-08.8W unlit until 28 sepWestern South Atlantic · Brazil-south Coast
- HYDROLANT 1009/172017-03-28 → 2017-05-25Paranagua radiobeacon and dgps station 25-30S 048-19W off air until 28 sepWestern South Atlantic · Brazil-south Coast
- HYDROLANT 968/172017-03-25 → 2017-03-28Garcia d'avila light 12-34.7S 038-00.2W unlit until 21 sepWestern South Atlantic · Brazil-east Coast
- HYDROLANT 943/172017-03-24 → 2017-04-14RACON at cabo santa marta light 28-36.3S 048-48.8W inoperative until 19 sepWestern South Atlantic · Brazil-south Coast
- HYDROLANT 831/172017-03-15 → 2017-03-18Ilha rasa light 23-03.8S 043-08.8W unreliable until 14 sepWestern South Atlantic · Brazil-south Coast
- HYDROLANT 803/172017-03-11 → 2017-03-18Aracati light 04-24.5S 037-46.2W unlit until 07 sepWestern South Atlantic · Brazil-north Coast
- HYDROLANT 796/172017-03-11 → 2017-03-16Morro de imbituba light 28-14.1S 048-38.8W unlit until 06 sepWestern South Atlantic · Brazil-south Coast
- HYDROLANT 781/172017-03-09 → 2017-03-18Radiobeacon, dgps and nbdp at ponta de calcanhar light 05-09.7S 035-29.2W inoperative until 09 sepWestern South Atlantic · Brazil-northeast Coast
- HYDROLANT 759/172017-03-08 → 2017-03-09Radiobeacon at ponta de calcanhar light 05-09.7S 035-29.1W inoperative until 03 sepWestern South Atlantic · Brazil-northeast 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.