Local Notice to Mariners 19/2025
04/07/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464
Cynghorir morwyr am safleoedd cyfredol y Cymhorthion Mordwyo a restrir isod.
Mariners are advised of the current positions of the Aids to Navigation listed below.
| Aid to Navigation | Approximate Depth (5 metres off correct side of AtoN, adjusted to CD). WARNING: Depth will be affected by wind, atmospheric pressure and sea state. | Latitude | Longitude | Light |
|---|---|---|---|---|
| Change of detail since last report. | ||||
| LLANDDWYN ISLAND SW ROCK BUOY S CARDINAL | 10.1m | 53ᵒ 07’.81 N | 004ᵒ25’.05 W | Unlit |
| LLANDDWYN ISLAND NE ROCK BUOY S CARDINAL | 2.67m | 53ᵒ 08’.04 N | 004ᵒ24’.47 W | Unlit |
| SAFE WATER MARK | OFF STATION FOR WINTER | 53ᵒ 06’.96N | 004ᵒ25'.11 W | L Fl.10s |
| C 1 STARBOARD | 6.03m | 53ᵒ 07’.00 N | 004ᵒ24’.69 W | Fl.G.5s |
| C 2 PORT | 1.47m | 53ᵒ 07’.13N | 004ᵒ24’.35 W | Fl.R.10s |
| C 3 STARBOARD | 2.91m | 53ᵒ 07’.23 N | 004ᵒ 23’.88 W | Q.G |
| C 4 PORT | 2.93m | 53ᵒ 07’.12 N | 004ᵒ22’.74 W | Q.R |
| GRAMPIAN CASTLE S CARDINAL | 1.78m | 53ᵒ 07’.26 N | 004ᵒ 22’.96 W | VQ(6)+LFl.10s |
| C 5 STARBOARD | 1.53m | 53ᵒ 07’.19 N | 004ᵒ23’.37 W | Fl.G(2).5s |
| C 6 PORT | 3.04m | 53ᵒ 07’.16 N | 004ᵒ21’.97 W | Fl.R.5s |
| MUSSEL BANK PERCH | 3.84m | 53ᵒ 07’.32 N | 004ᵒ20’.92 W | Fl.R(2).5s |
| C 8 PORT | 5.54m | 53ᵒ 07’.63N | 004ᵒ19’.43 W | Fl.R.3s |
| C 10 PORT | 2.89m | 53ᵒ 07’.95 N | 004ᵒ18’.25 W | Q.R |
| C 7 STARBOARD | 3.32m | 53ᵒ 08’.13 N | 004ᵒ18’.02 W | Q.G |
| C 12 PORT | 1.6m | 53ᵒ 08’.48 N | 004ᵒ17’.39 W | Fl(2)R.10s |
| C 9 STARBOARD | 3.7m | 53ᵒ 08’.54 N | 004ᵒ16’.91 W | Fl.G.2s |
| CHANGE BUOY S CARDINAL | 4.24m | 53ᵒ 08’.80 N | 004ᵒ16’.74 W | VQ(6)+LFl.10s |
| SEIONT RIVER BIFURCATION | 0.13m | 53ᵒ 08’.55 N | 004ᵒ16’.81 W | Unlit |
| TRAETH GWYLLT STARBOARD | 2.78m | 53ᵒ 09’.27 N | 004ᵒ16’.09 W | Fl(2)G.10s |
| C 13 STARBOARD | 2.71m | 53ᵒ 09’.53 N | 004ᵒ15’.89 W | Fl(4)G.10s |
| C 11 STARBOARD | 3.85m | 53ᵒ 09’.88 N | 004ᵒ15’.63 W | Fl(2)G.5s |
| C 14 PORT | 5.28m | 53ᵒ 10’.19 N | 004ᵒ15’.50 W | Fl.R.5s |
| C TEMP PORT | 4.92m | 53ᵒ 10’.53 N | 004ᵒ14’.67 W | FL(2)R.5s |
| C 9 STARBOARD PORT DINORWIC | 2.96m | 53ᵒ 10.63N | 004ᵒ13’.82W | FL(3)G.10s |