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 · 171 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 · 169 dCaete Light at 00-49S 046-36W is destroyed; message cancels on September 3, 2026.South Atlantic · Brazil
- HYDROLANT 492/26in force2026-03-13 · 163 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 1312/052005-07-19 → 2005-07-21Araripe light 16-08.1S 038-57.9W unlit
- HYDROLANT 1304/052005-07-16 → 2005-12-21Ponta do valado light 20-29.8S 029-19.3W unlit
- HYDROLANT 1252/052005-07-05 → 2005-07-06Subauma light 12-14.4S 037-46.4W unreliable
- HYDROLANT 1246/052005-07-04 → 2005-07-15Cabo polonio radiobeacon 34-24.3S 053-46.6W off air
- HYDROLANT 1176/052005-06-22 → 2005-06-28Ponta cajuais light 04-42.6S 037-21.7W unlit
- HYDROLANT 1175/052005-06-22 → 2005-10-05RACON at ararangua light 28-56.1S 049-21.7W inoperative
- HYDROLANT 1154/052005-06-20 → 2005-06-21Ponta da tabatinga light 06-02.7S 035-06.7W unlit
- HYDROLANT 862/052005-05-07 → 2005-05-30Radiobeacon and dgps station at cabo de santa marta grande light 28-36.2S 048-48.7W off air 10 thru 29 may
- HYDROLANT 858/052005-05-07 → 2005-05-09Radiobeacon at sao tome light 22-02.5S 041-03.2W off air 091200Z to 092100Z may
- HYDROLANT 763/052005-04-23 → 2005-04-24Porto seguro light 16-26.1S 039-03.8W unlit
- HYDROLANT 653/052005-04-09 → 2005-04-22Itapeva light 29-33.4S 049-53.3W unlit
- HYDROLANT 592/052005-04-01 → 2005-04-03Morro de taipus light 13-57.4S 038-56.5W unreliable
- HYDROLANT 580/052005-03-31 → 2005-04-01Morro de taipus light 13-57.4S 038-56.5W unlit
- HYDROLANT 548/052005-03-25 → 2005-09-28Racons temporarily removed: 1. simao grande light 00-15.4S 048-24.1W
- HYDROLANT 533/052005-03-24 → 2005-03-25Ilha de santana light 02-16.2S 043-37.4W unlit
- HYDROLANT 478/052005-03-13 → 2005-10-05El rincon buoy 39-23.9S 061-29.0W missing
- HYDROLANT 460/052005-03-10 → 2005-03-12Nova vicosa light 17-53.9S 039-22.4W unlit
- HYDROLANT 240/052005-02-02 → 2005-03-31Conceicao light 31-43.8S 051-28.9W unlit
- HYDROLANT 223/052005-01-31 → 2005-07-30Macae light 22-25.0S 041-42.4W unreliable
- HYDROPAC 143/052005-01-25 → 2005-05-23Welangilala light 16-44.7S 179-06.4W extinguished and RACON inoperative
- HYDROLANT 106/052005-01-15 → 2005-01-19Ponta das cabecudas light 26-55.5S 048-37.3W temporarily changed to fl (3) w 20 sec
- HYDROLANT 69/052005-01-11 → 2005-01-12Nova vicosa light 17-53.9S 039-22.4W unlit
- HYDROLANT 1980/042004-12-11 → 2006-08-16Ponta da praia grande light 01-07.2S 045-37.6W removed
- HYDROLANT 1914/042004-11-30 → 2004-12-03Ponta negra light 22-57.6S 042-41.5W unlit
- HYDROLANT 1783/042004-11-04 → 2004-11-05Segunda barranca point light 40-46.5S 062-16.3W unreliable
- HYDROLANT 1416/042004-08-28 → 2004-09-24Pta de tijoca light 00-33.4S 047-53.3W unlit
- HYDROLANT 1367/042004-08-18 → 2004-08-19Morro de sao paulo light 13-22.5S 038-54.9W unlit
- HYDROLANT 1361/042004-08-17 → 2004-08-19Ponta paracuru light 03-24.0S 039-00.7W unlit
- HYDROLANT 1295/042004-08-05 → 2004-08-11Cabo curioso light 49-11S 067-37W unlit
- HYDROLANT 1288/042004-08-03 → 2004-08-06Dgps station at ponta de calcanhar light 05-09.7S 035-29.1W at reduced range
- HYDROLANT 1275/042004-08-01 → 2004-08-05Belmonte light 15-51.8S 038-52.6W unlit
- HYDROLANT 1216/042004-07-20 → 2004-08-02Cabo virgenes light 52-20.0S 068-21.2W unlit
- HYDROLANT 1205/042004-07-17 → 2004-07-22Belmonte light 15-51.8S 038-52.6W unreliable
- HYDROLANT 1197/042004-07-16 → 2004-07-17Belmonte light 15-51.8S 038-52.6W unlit
- HYDROLANT 1173/042004-07-12 → 2004-07-14Punta delgada light 42-46.2S 063-38.1W unlit
- HYDROLANT 1107/042004-07-01 → 2004-07-07Dgps station at sao marcos light 02-29.3S 044-18.1W inoperative
- HYDROLANT 1088/042004-06-29 → 2004-07-30Radiobeacon at moela light 24-03.1S 046-15.9W inoperative
- HYDROLANT 1065/042004-06-24 → 2004-07-15Maceio light 09-39.4S 035-43.6W unreliable
- HYDROLANT 1031/042004-06-17 → 2004-07-15Cabo virgenes light 52-20.0S 068-21.2W unlit
- HYDROLANT 1012/042004-06-12 → 2004-06-24Ilheus light 14-48.4S 039-01.5W unlit
- HYDROLANT 1003/042004-06-10 → 2004-07-30Dgps station at ponta de calcanhar light 05-09.7S 035-29.1W inoperative
- HYDROLANT 967/042004-06-04 → 2004-07-02Dgps station at dos abrolhos light 17-57.8S 038-41.5W inoperative
- HYDROLANT 959/042004-06-03 → 2004-06-04RACON at canal dos abrolhos light 17-57.8S 038-41.5W inoperative
- HYDROLANT 954/042004-06-03 → 2004-06-04Araripe light 16-08.1S 038-57.9W unlit
- HYDROLANT 918/042004-05-27 → 2004-07-20Ilha do bom abrigo light 25-07.4S 047-51.7W unlit
- HYDROLANT 670/042004-04-21 → 2004-04-24Morro branco light 04-09.6S 038-06.5W unlit
- HYDROLANT 543/042004-04-02 → 2004-04-03Ponta negra light 22-57.6S 042-41.5W unlit
- HYDROLANT 480/042004-03-24 → 2004-04-30Cabo san diego light 54-39S 065-07W unlit
- HYDROLANT 467/042004-03-23 → 2004-05-05Santa cruz light 50-09.2S 068-21.7W unlit
- HYDROLANT 453/042004-03-20 → 2004-04-13RACON at abrolhos light 17-57.8S 038-41.5W inoperative
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.