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 | Depth (5 metres off correct side of AtoN, adjusted to CD). | Latitude | Longitude | Light |
|---|---|---|---|---|
| Change of detail since last report. | ||||
| LLANDDWYN ISLAND SW ROCK BUOY S CARDINAL | 8.5m | 53ᵒ 07’.89 N | 004ᵒ25’.15 W | Unlit |
| LLANDDWYN ISLAND NE ROCK BUOY S CARDINAL | 2.02m | 53ᵒ 08’.04 N | 004ᵒ24’.47 W | Unlit |
| SAFE WATER MARK | 7.64m | 53ᵒ 06’.95 N | 004ᵒ25'.14 W | L Fl.10s |
| C 1 STARBOARD | 5.38m | 53ᵒ 06’.96 N | 004ᵒ24’.71 W | Fl.G.5s |
| C 2 PORT | 0.34m | 53ᵒ 07’.12N | 004ᵒ24’.71 W | Fl.R.10s |
| C 3 STARBOARD | 1.7m | 53ᵒ 07’.23 N | 004ᵒ 23’.88 W | Q.G |
| C 4 PORT | 1.8m | 53ᵒ 07’.12 N | 004ᵒ22’.72 W | Q.R |
| GRAMPIAN CASTLE S CARDINAL | N/A | 53ᵒ 07’.26 N | 004ᵒ 22’.96 W | VQ(6)+LFl.10s |
| C 5 STARBOARD | 1.93m | 53ᵒ 07’.19 N | 004ᵒ23’.37 W | Fl.G(2).5s |
| C 6 PORT | 2.3m | 53ᵒ 07’.16 N | 004ᵒ21’.91 W | Fl.R.5s |
| MUSSEL BANK PERCH | 5.59m | 53ᵒ 07’.32 N | 004ᵒ20’.92 W | Fl.R(2).5s |
| C 8 PORT | 3.76m | 53ᵒ 07’.63N | 004ᵒ19’.43 W | Fl.R.3s |
| C 10 PORT | 2.1m | 53ᵒ 07’.95 N | 004ᵒ18’.22 W | Q.R |
| C 7 STARBOARD | 2.3m | 53ᵒ 08’.14 N | 004ᵒ18’.13 W | Q.G |
| C 12 PORT | 3.03m | 53ᵒ 08’.50 N | 004ᵒ17’.38 W | Fl(2)R.10s |
| C 9 STARBOARD | 3.58m | 53ᵒ 08’.57 N | 004ᵒ16’.88 W | Fl.G.2s |
| CHANGE BUOY S CARDINAL | 2.19m on station 6.09m in channel | 53ᵒ 08’.81 N | 004ᵒ16’.72 W | VQ(6)+LFl.10s |
| SEIONT RIVER BIFURCATION | -1.21m | 53ᵒ 08’.55 N | 004ᵒ16’.79 W | Unlit |
| TRAETH GWYLLT STARBOARD | 6.04m | 53ᵒ 09’.29 N | 004ᵒ16’.08 W | Fl(2)G.10s |
| C 13 STARBOARD | 3.74m | 53ᵒ 09’.54 N | 004ᵒ15’.89 W | Fl(4)G.10s |
| C 11 STARBOARD | 4.2m | 53ᵒ 09’.88 N | 004ᵒ15’.63 W | Fl(2)G.5s |
| C 14 PORT | 7.38m | 53ᵒ 10’.23 N | 004ᵒ15’.41 W | Fl.R.5s |
| C TEMP | 53ᵒ 10’.53 N | 004ᵒ14’.67 W | FL(2)R.5s | |
| C 9 STARBOARD PORT DINORWIC | 1.29m | 53ᵒ 10.69 N | 004ᵒ13’.81 W | FL(3)G.10s |