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 130/2026Link

BLACK SEA. ROMANIA. DRIFTING OBJECT.

  1. A DANGEROUS DRIFTING OBJECT WAS OBSERVED ON 250923 UTC SEP26 IN POSITION
    • 43-55,11 N 030-37,66 E
  2. DUE TO CURRENTS AND WIND, THE GENERAL DRIFT IS WESTWARD AS FAR AS 030 E MERIDIAN, THEN CONTINUING SOUTHWARD.
  3. NAVIGATE WITH CAUTION AND KEEP A BERTH OF 2NM AWAY FROM THE OBJECT.
  4. CANCEL THIS MESSAGE ON 281100 UTC SEP26.
Published 25 September 2026
ARN 129/2026Link

BLACK SEA. ROMAIA. CANCEL NW. RED BEACON MISSING.

  1. CANCEL NW 125/22.09.2026;
    • 44-06,71 N 028-39,21 E
  2. MISSING - THE RED LIGHT BUOY FROM POSITION
    • 44-06,71 N 028-39,21 E
Published 24 September 2026
ARN 128/2026Link

BLACK SEA. ROMANIA. MIDIA. LIVE FIRING.

  1. LIVE FIRING WILL BE CONDUCTED BETWEEN 29 - 30 SEP 26, 05.00 UTC - 13.00 UTC, IN AREA BOUNDED BY:
    • 44-25,43 N 028-42,50 E
    • 44-29,50 N 028-55,58 E
    • 44-29,55 N 029-31,12 E
    • 44-24,20 N 029-31,93 E
    • 44-09,02 N 029-26,73 E
    • 44-04,45 N 029-22,32 E
    • 44-13,55 N 028-51,50 E
    • 44-22,08 N 028-42,42 E
  2. PROHIBITED AREA FOR NAVIGATION INSIDE THE TERRITORIAL WATERS AND VERY DANGEROUS OUTSIDE OF IT.
  3. CANCEL THIS MESSAGE ON 301400 UTC SEP26.
Published 23 September 2026
ARN 127/2026Link

BLACK SEA. ROMANIA. FIRING.

  1. FIRING EXERCISES WILL BE CONDUCTED BETWEEN 30 SEP - 01 OCT 26, FROM 07.00 UTC TO 15.00 UTC, IN AREA BOUNDED BY:
    • 44-05,00 N 029-08,00 E
    • 44-15,00 N 029-08,00 E
    • 44-15,00 N 029-30,00 E
    • 44-05,00 N 029-30,00 E
  2. DANGEROUS AREA FOR NAVIGATION.
  3. CANCEL THIS MESSAGE ON 011600 UTC OCT26.
Published 22 September 2026
ARN 126/2026Link

BLACK SEA. ROMANIA. FIRING.

  1. FIRING EXERCISES WILL BE CONDUCTED BETWEEN 06 - 09 OCT 26, FROM 04.30 UTC TO 16.30 UTC IN AREA BOUNDED BY:
    • 44-56,00 N 029-36,00 E
    • 44-58,00 N 029-57,00 E
    • 44-43,00 N 029-54,00 E
    • 44-52,00 N 029-36,00 E
  2. PROHIBITED AREA FOR NAVIGATION.
  3. CANCEL THIS MESSAGE ON 091730 UTC OCT26.
Published 22 September 2026
ARN 124/2026Link

BLACK SEA. ROMANIA. COASTAL PROTECTION WORKS.

  1. UNTIL 30 OCT26 FLOATING PIPING AND ANCHORS FOR COASTAL PROTECTION WORKS ARE INSTALLED IN THE AREA BOUNDED BY:
    • 43-49,77 N 028-37,27 E
    • 43-47,98 N 028-37,00 E
    • 43-48,33 N 028-35,12 E
    • 43-49,84 N 028-35,42 E
  2. MARINERS ARE ADVISED TO KEEP CLEAR OF THE AREA AND MAINTAIN A SAFE DISTANCE. DANGEROUS TO NAVIGATION.
  3. CANCEL THIS MESSAGE ON 302159 UTC OCT26.
Published 22 September 2026
ARN 123/2026Link

BLACK SEA. ROMANIA. COASTAL PROTECTION WORKS.

  1. UNTIL 31 JAN27 ANCHORS FOR COASTAL PROTECTION WORKS ARE INSTALLED, MARKED BY ORANGE BUOYS IN THE AREA BOUNDED BY:
    • 43-56,48 N 028-38,90 E
    • 43-57,24 N 028-38,94 E
    • 43-57,19 N 028-40,22 E
    • 43-56,44 N 028-40,17 E
  2. MARINERS ARE ADVISED TO KEEP CLEAR OF THE AREA AND MAINTAIN A SAFE DISTANCE.
  3. CANCEL THIS MESSAGE ON 312130 UTC JAN27.
Published 22 September 2026
ARN 120/2026Link

BLACK SEA. ROMANIA. FIRING.

  1. REAL FIRING AND UAV FLIGHT ACTIVITIES ON DAYS OF 22 SEP26, 23 SEP26, 24 SEP26, 25 SEP26 AND 28 SEP26 FROM 06.00 UTC TO 12.00 UTC IN THE AREA BOUNDED BY:
    • 44-25,43 N 028-42,50 E
    • 44-29,50 N 028-55,58 E
    • 44-25,08 N 029-01,20 E
    • 44-19,70 N 029-00,82 E
    • 44-14,57 N 028-57,93 E
    • 44-13,10 N 028-56,33 E
    • 44-22,08 N 028-42,42 E
  2. PROHIBITED AREA TO NAVIGATION.
  3. CANCEL THIS MESSAGE ON 281300 UTC SEP26.
Published 17 September 2026
ARN 118/2026Link

BLACK SEA. ROMANIA. WRECK.

Cancels ARN 107/2026

  1. M/V PROGRESS IV SUNK IN POSITION
  2. MOORING LINES ARE PRESENT IN THE WATER COLUMN, WITH HYDROCARBONS ON THE SEA SURFACE. DANGEROUS TO NAVIGATION.
  3. A TEMPORARY SAFETY ZONE WITH A RADIUS OF TWO NAUTICAL MILES ESTABLISHED AROUND THE ABOVE-MENTIONED POSITION.
Published 10 September 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 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