The national authority in the field of hydrography and safety of navigation
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Sigla DHM

Maritime Hydrographic Directorate

Radio navigational warnings

Radio navigational warnings issued by the Maritime Hydrographic Directorate for Romania's area of competence in the Black Sea

Click a notice below to locate it on the map. Orientative map. Cartography ©OpenStreetMap contributors

ARN 116/2026Link

BLACK SEA. ROMANIA. SAR EXERCISE.

  1. EXERCISE. EXERCISE. EXERCISE. ON 08 SEPTEMBER 2026, BETWEEN 0500 AND 1400 UTC, A SEARCH AND RESCUE (SAR) EXERCISE WILL BE CONDUCTED AT SEA IN THE AREA BOUNDED BY THE FOLLOWING POSITIONS:
    • 44-00,00 N 028-40,00 E
    • 44-00,00 N 028-50,00 E
    • 43-52,00 N 028-50,00 E
    • 43-52,00 N 028-40,00 E
  2. NAVIGATE WITH CAUTION IN THIS AREA. KEEP A SAFE DISTANCE FROM VESSELS INVOLVED IN THE EXERCISE.
  3. CANCEL THIS MESSAGE ON 081500 UTC SEP26.
Published 7 September 2026
ARN 112/2026Link

BLACK SEA. ROMANIA. MARITIME EXERCISES TRAINING.

  1. ON DAYS OF 07SEP26, 08 SEP26 AND 09SEP26, MARITIME EXERCISES TRAINING IN AREA BOUNDED BY:
  2. EXERCISES SCHEDULED AS FOLLOWS: - ON DAY OF 07 SEP26, FROM 05.00 UTC TO 20.59 UTC; - ON DAYS OF 08 SEP26 AND 09 SEP26, FROM 05.00 UTC TO 15.00 UTC AND FROM 16.00 UTC TO 20.59 UTC;
  3. PROHIBITED AREA TO NAVIGATION.
  4. CANCEL THIS MSG AT 092159 UTC SEP26.
Published 31 August 2026
ARN 107/2026Link

BLACK SEA. ROMANIA. SUNKEN SHIP.

  1. ON DAY OF 271904 UTC AUG26, THE SHIP M/V PROGRESS IV SUNK IN POSITION 44-36.216 N, 029-46.766 E.
Published 28 August 2026
ARN 102/2026Link

BLACKS SEA. ROMANIA. RECOMMENDATION REGARDING DRIFTING OBJECTS.

  1. GIVEN THE INCREASING NUMBER OF FLOATING OBJECTS/PARTS OF MILITARY EQUIPMENT BEING ENCOUNTERED ALONG THE COASTLINE, WE RECOMMEND THAT SHIPS AND BOATS EXERCISE INCREASED CAUTION WHILE NAVIGATING, PROMPTLY INFORM THE AUTHORITIES BY CALLING THE EMERGENCY NUMBER 112, MAINTAIN A SAFE DISTANCE FROM SUCH OBJECTS, AND AVOID HITTING OR HANDLING THEM.
Published 22 August 2026
ARN 83/2026Link

BLACK SEA. ROMANIA. TEMPORARILY REPLACED BUOY.

Cancels ARN 68/2026

  1. CANCEL NW 68/06.07.2026.
  2. THE PORT HAND LIGHT BUOY FROM POSITION
    • 44-20,20 N 028-41,05 E
  3. IS TEMPORARILY REPLACED BY A LIGHT BUOY, FLOAT DIAMETER 1300 MILLIMETRES, LIGHT HEIGHT 2 METERS.
Published 31 July 2026
ARN 78/2026Link

BLACK SEA. ROMANIA. PRODUCTION PLATFORM.

  1. THE NEPTUN ALPHA PRODUCTION PLATFORM WAS ESTABLISHED AT THE CENTRAL POINT
    • 44-02,85 N 030-35,25 E
  2. MAINTAIN A SAFETY DISTANCE OF 500 METRES.
Published 22 July 2026
ARN 41/2026Link

BLACK SEA. ROMANIA. BUOY OUT OF POSITION.

  1. THE STARBOARD LIGHT BUOY FROM POSITION
    • 43-47,92 N 028-34,68 E
  2. OUT OF POSITION.
Published 14 May 2026
ARN 28/2026Link

BLACK SEA. ROMANIA. MARITIME HYDROGRAPHIC ACTIVITIES.

  1. BETWEEN 01 APR26 – 30 OCT26, HYDROGRAPHIC MARINE ACTIVITIES ARE BEING CONDUCTED IN AREA BOUNDED BY:
    • 43-57,87 N 028-38,92 E
    • 43-58,99 N 028-39,47 E
    • 43-58,21 N 028-42,47 E
    • 44-03,61 N 030-02,47 E
    • 44-05,62 N 030-13,76 E
    • 44-03,99 N 030-25,24 E
    • 44-03,71 N 030-35,78 E
    • 44-02,63 N 030-35,72 E
    • 44-02,91 N 030-25,07 E
    • 44-04,51 N 030-13,80 E
    • 44-02,32 N 030-01,80 E
    • 43-57,00 N 028-42,26 E
  2. NAVIGATE WITH CAUTION IN THIS AREA AND KEEP A WIDE BERTH FROM THE SHIPS ENGAGED IN THIS ACTIVITIES. ANCHORING IS PROHIBITED.
  3. SHIPS ENGAGED IN THE ACTIVITY: CASTORO 10, NORMAND MAXIMUS, NORMAND SENTINEL, SKANDI ASSERTER, MAVI VATAN, CASTORONE, ARAS SALVOR, DECO, AG-5, MARITIM 3, GH FREEDOM, SKANDI LASER, CHALLENGER, ROXANE Z, BOURBONE NORTE, SAR ODIN, SAR MARINER, SAR BRAGE AND SPEAR TIDE.
  4. CANCEL THIS MESSAGE ON 302300 UTC OCT26.
Published 27 March 2026
ARN 111/2025Link

BLACK SEA. ROMANIA. INOPERATIVE HORN.

Cancels ARN 110/2025

  1. CANCEL NW 110/17.12.2025.
  2. THE HORN Mo(U)40s AT LIGHTHOUSE IN POSITION
    • 44-19,28 N 028-41,68 E
  3. INOPERATIVE.
Published 18 December 2025
ARN 93/2025Link

BLACK SEA. ROMANIA. UNLIT PORT HAND LIGHT BUOY.

  1. PORT HAND LIGHT BUOY IN POSITION
    • 43-47,93 N 028-33,37 E
  2. UNLIT.
Published 27 October 2025
ARN 61/2025Link

BLACK SEA. ROMANIA. UNDERWATER BEACON.

  1. UNDERWATER BEACON IS INSTALLED IN POSITION
    • 44-03,32 N 030-35,99 E
  2. AVOID ANCHORING IN THE AREA.
Published 10 July 2025
ARN 152/2024Link

BLACK SEA. ROMANIA. UNDERWATER ACTIVITIES.

  1. BETWEEN 05 JAN25 – 31 DEC26 UNDERWATER ACTIVITIES ARE BEING CONDUCTED IN AREA BOUNDED BY:
    • 44-04,40 N 030-34,13 E
    • 44-02,40 N 030-30,50 E
    • 43-51,87 N 030-41,07 E
    • 43-48,68 N 030-44,33 E
    • 43-50,73 N 030-50,38 E
    • 44-02,77 N 030-37,85 E
    • 44-04,67 N 030-37,88 E
  2. WIDE BERTH REQUESTED.
  3. CANCEL THIS MSG ON 312300UTC DEC26.
Published 30 December 2024
ARN 119/2024Link

BLACK SEA. ROMANIA. RECOMMENDED ROUTES.

  1. IT IS RECOMMENDED THAT ALL SHIPS SAILING IN THE ROMANIAN AREA OF RESPONSABILITY TO APPLY THE PROVISIONS OF NOTICE TO MARINERS NO. 4/41 – 2022.
  2. DUE TO DANGER TO NAVIGATION CAUSED BY THE MINE PRESENCE IN THE ROMANIAN AREA OF RESPONSIBILITY WE ADVISE ALL SAILING SHIPS APPROACHING AND LEAVING ROMANIAN HARBOURS TO USE POSITION 43-47.59 N, 028-50.86 E AND AS THE CASE MAY BE, TO FOLLOW RECOMMENDED TRACKS: 1 (43-47.59 N, 028-50.86 E; 43-47.5’ N, 028-37.61 E) 2 (43-47.59 N, 028-50.86 E; 44-11.33 N, 028-50.86 E; 44-15.52 N, 028-45.04 E) - POSITION 43-58.79 N, 028-50.86 E (RECOMMENDED TRACK 2) USED FOR ENTRY TO TRAFFIC SEPARATION SCHEME CONSTANTA; - SHIPS EXIT/LEAVING THE TRAFFIC SEPARATION SCHEME CONSTANTA IN POSITION 43-56.75 N, 028-50.86 E (RECOMMENDED TRACK 2). 4 (44-00.57 N, 028-50.87 E; 44-26.93 N, 029-43.20 E; 44-36.49 N, 029-52.56 E; 45-05.89 N, 029-52.56 E; 45-08.04 N, 029-47.58 E). ALL SHIPS ARE REQUESTED TO REPORT IMMEDIATELY ANY MINES DETECTION OR MINE LIKE OBJECTS USING RADIO FREQUENCY CH 16/VHF AND CONTACTS: (0040241/651040) NtM@dhmfn.ro – ROMANIAN MARITIME HYDROGRAPHIC DIRECTORATE; (0040241/615949) mrcc@rna.ro – MRCC CONSTANTA; (004241/641188) scomar@mai.gov.ro – ROMANIAN COAST GUARD.
Published 30 September 2024
ARN 114/2024Link

BLACK SEA. ROMANIA. INOPERATIVE HORN.

  1. THE HORN Mo(U)40s - INOPERATIVE, AT LIGHTHOUSE IN POSITION
    • 44-08,61 N 028-40,37 E
Published 16 September 2024
ARN 111/2023Link

BLACK SEA. ROMANIA. MINE DANGER.

  1. MINE DANGER AREA DECLARED BY UKRAINEA AUTHORITIES, 5NM RADIUS DATUM POINT
    • 45-07,10 N 030-09,70 E
  2. DANGEROUS AREA TO NAVIGATION.
Published 7 September 2023
ARN 60/2022Link

BLACK SEA. ROMANIA. MINE DANGER.

Cancels ARN 12/2022Cancels ARN 18/2022

  1. CANCEL NW 12 / 18.03.2022 AND NW 18 / 29.03.2022.
  2. DUE TO THE HIGH NUMBER OF MARINE MINES FOUND IN THE NORTH-WEST PART OF THE BLACK SEA, OF WHICH 2 CONTACTS WERE FOUND AND CLEARED IN THE ROMANIAN COASTAL AREA, THE MINE DANGER REMAINS HIGH, AND IT IS RECOMMENDED TO ALL SHIPS SAILING IN THE ROMANIAN AREA OF RESPONSIBILITY TO APPLY THE PROVISIONS OF NOTICE TO MARINERS NO. 4/41-2022.
Published 2 August 2022
ARN 8/2022Link

BLACK SEA. ROMANIA. AREA OF CONFLICT.

  1. GIVEN THE CONFLICT SITUATION IN THE UKRAINIAN TERRITORIAL WATERS, WHICH HAS LED TO A CONGESTION OF SHIPS SOUTH OF THE MARITIME BORDER WITH UKRAINE, WE URGE ALL SHIPS IN THIS AREA TO NAVIGATE WITH CAUTION.
Published 26 February 2022