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Local Notice to Mariners 18/2021
18/05/2021 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464
Bar Caernarfon Bar
Cynghorir morwyr bod y cymhorthydd mordwyo canlynol bellach mewn safleoedd priodol a nodir isod.
Cynghorir morwyr bod y Rhybudd Morwriaeth Lleol hwn 18/2021 bellach yn dileu’r holl Rybuddion blaenorol sy’n ymwneud â’r Cymhorthion mordwyo penodol isod.
Mariners are advised that the following Aid to Navigation are now in the appropriate positions noted below.
Mariners are advised that this Notice to Mariners 18/2021 now cancels all previous Notices relating to these specific Aids to Navigation.
| Navigation Mark | Latitude | Longitude | Lights |
|---|---|---|---|
| Safe Water Mark | 53ᵒ06.75'N | 004ᵒ24.80'W | L.Fl.10s |
| C1 | 53ᵒ07.18'N | 004ᵒ24.60'W | Fl.G.5s |
| C2 | 53ᵒ07.32'N | 004ᵒ24.30'W | Fl.R.10s |
| C3 | 53ᵒ07.25'N | 004ᵒ23.87'W | Q.G |
| C4 | 53ᵒ07.16'N | 004ᵒ22.99'W | Q.R |
| C5 | 53ᵒ07.14'N | 004ᵒ23.36'W | Fl(2)G.5s |
| C6 | 53ᵒ07.22'N | 004ᵒ21.91'W | Fl.R.5s |
| Mussel Bank | 53ᵒ07.23'N | 004ᵒ20.93'W | Fl(2).R.5s |
| C8 | 53ᵒ07.68'N | 004ᵒ19.33'W | Fl.R.3s |
Local Notice to Mariners 17/2021
15/05/2021 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464
Bar Caernarfon Bar
Cynghorir morwyr bod y cymhorthydd mordwyo canlynol bellach mewn safleoedd priodol a nodir isod.
Cynghorir morwyr bod y Rhybudd Morwriaeth Lleol hwn 17/2021 bellach yn dileu’r holl Rybuddion blaenorol sy’n ymwneud â’r Cymhorthion mordwyo penodol isod.
Mariners are advised that the following Aid to Navigation are now in the appropriate positions noted below.
Mariners are advised that this Notice to Mariners 17/2021 now cancels all previous Notices relating to these specific Aids to Navigation.
| Navigation Mark | Latitude | Longitude | Lights |
|---|---|---|---|
| Safe Water Mark | 53ᵒ06.75'N | 004ᵒ24.80'W | L.Fl.10s |
| C1 | 53ᵒ07.18'N | 004ᵒ24.60'W | Fl.G.5s |
| C2 | 53ᵒ07.32'N | 004ᵒ24.30'W | Fl.R.10s |
| C3 | 53ᵒ07.25'N | 004ᵒ23.87'W | Q.G |
| C4 | 53ᵒ07.16'N | 004ᵒ22.99'W | Q.R |
| C5 | 53ᵒ07.14'N | 004ᵒ23.36'W | Fl(2)G.5s |
| C6 | 53ᵒ07.22'N | 004ᵒ21.91'W | Fl.R.5s |
| Mussel Bank | 53ᵒ07.23'N | 004ᵒ20.93'W | Fl(2).R.5s |
| C8 | 53ᵒ07.29'N | 004ᵒ17.70'W | Fl.R.3s |
Local Notice to Mariners 16/2021
29/04/2021 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464
Ynys Llanddwyn Island
Mae cymhorthydd mordwyo “Graig Dde Gorllewin” Ynys Llanddwyn Cardinal De, Melyn a Du ar ei safle priodol, ond ond mae o dan y dŵr yn rhannol.
53ᵒ07.81′ Gog 004ᵒ25.06′ Gor
Cynghorir morwyr i fod yn ofalus iawn yn y ardal hwn.
Aid to navigation Llanddwyn Island “South West Rock” South Cardinal, Y.B is on its appropriate station, but is partially submerged.
53ᵒ07.81′ N 004ᵒ25.06′ W
Mariners are advised to exercise extreme caution in this area.
Local Notice to Mariners 15/2021
21/04/2021 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464
Yn dilyn gwybodaeth ddiweddar a dderbyniwyd gan Forwr. Cynghorir morwyr y credu bod perygl sylweddol i fordwyo yn bodoli yn y Swellies ac o bosibl yr ardal ehangach yn y Gogledd-ddwyrain a’r De-orllewin o ystyried y gallai’r llinell angor fethu ar unrhyw adeg. Mae’n bosibl bod y cwch tanddwr Seahog 16 ‘yn dal i fod yn y safle neu’n gyfagos i’r ardal.
53ᵒ13.113′ Gog 004ᵒ10.660′ Gor
Cynghorir morwyr i lywio’n ofalus iawn ar hyd Terfynau’r Harbwr nes y gellir sefydlu lleoliad a diogelwch y llong.
Following recent information received by a Mariner. Mariners are advised that a significant danger to navigation is belived to exist in the Swellies and possible the wider area both Northeast and Southwest given the anchor line may fail at any time. The submerged vessel a 16’ Seahog is potentially still in or near the position.
53ᵒ13.113′ N 004ᵒ10.660′ W
Mariners are advised to navigate with extreme caution throughout the Harbour Limits until the vessel’s location and security can be established.
Local Notice to Mariners 14/2021
01/04/2021 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464
Bae Caernarfon Bay
Cynghorir morwyr y bydd y cwch “Seven Guardian” yn cynnal arolwg gwyddonol ar raddfa fach (samplu cydio) rhwng 5 a 21 Ebrill (yn dibynnu ar y tywydd) yn Ardal Bae Caernarfon gan gynnwys y ffyrdd tuag at Gaernarfon. Bydd samplu yn cymryd oddeutu 2 ddiwrnod a bydd yn golygu gostwng ac adfer samplwr cydio gwaddod bach mewn lleoliadau ar draws y bae o borth Dinllaen i o amgylch Bar Caernarfon.
Mariners are advised that the vessel Seven Guardian will be undertaking a small-scale scientific survey (grab sampling) from 5th- 21st of April (depending on weather) in the Caernarfon Bay Area including the approaches to Caernarfon. Sampling will take approximately 2 days and will involve lowering and retrieving a small sediment grab sampler at locations across the bay from Porthdinllean to around the Caernarfon Bar.
Local Notice to Mariners 13/2021
01/04/2021 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464
Cynghorir morwyr fod Rhybudd Morwriath Lleol 21/2021 nawr wedi’i ganslo.
Mariners are advised that Notice to Mariners 21/2020 in now cancelled
Local Notice to Mariners 12/2021
01/04/2021 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464
Harbour Master’s General Direction
5 Knot Speed Limit
By virtue of the provisions of Sec. 52 Harbour, Docks and Piers Clauses Act 1847, Port and harbour of Caernarfon Harbour Master has made the following General Direction:
1. This Direction is given to Masters (see note a) and persons having command or charge of any vessel (see note b) other than those vessels listed in paragraph 4(i) to 4(v).
2. This Direction applies at all times and in the area north of the existing and active speed limit at Y Felinheli. (Now known as the “Y Felinheli to Garreg Ginnog” Area of General Direction). The “Y Felinheli to Garreg Ginnog” means the area below the level of mean high water spring tides bounded by a line drawn along the northern extent of the existing charted speed limit at Y Felinheli and through to a new line drawn from a point 53ᵒ12.30’N 004ᵒ12.44’W to a point 53ᵒ12.40’ N 044ᵒ12.82’W. (Illustrative chart extract at end of NtoM).
3. At the Northern and Southern extent of the entire speed limit. Special Marks will be positioned to demark the area.
4. This Direction is not given to Masters and persons having command or charge of vessels:
(i) used by search and rescue organisations
(ii) of the Caernarfon Harbour Authority
(iii) of HM Customs and Excise
(iv) vessels under sail.
(v) used as safety boats by Yacht and Sailing Clubs and other such organisations when engaged in operations where complying with this Direction would inhibit their ability to fulfil their function as a safety boat
5. No vessel, except those listed in paragraphs 4(i) to 4(v), shall proceed at a speed of greater than 5 knots.
6. This Direction is given notwithstanding the requirements of the International Regulations for Preventing Collisions at Sea (see note c) and The Port and Harbour of Caernarfon Bylaws 1991 (see note d).
7. Not to comply with this Direction is a criminal offence for which the person having command or charge of the vessel may be prosecuted (see note e).
8. The Harbour Master or his deputies will be actively monitoring the compliance with this General Direction.
David John O’Neill
Caernarfon Harbour Master
Notes
a Sec.3 Harbour, Docks and Pier Clauses Act 1847
b As defined in the Port and Harbour of Caernarfon Bylaws 1991.
c Merchant Shipping (Distress Signals and Prevention of Collisions) Regulations 1996 [SI 75/1996]
d Port and Harbour of Caernarfon Bylaws 1991.
e Sec.3 and Sec.53 Harbour, Docks and Piers Clauses Act 1847
Owners, Agents Charterers, Marinas, Yacht Clubs and Recreational Sailing Organisations should ensure that the contents of this Notice are made known to the master or persons in charge of their vessel or craft.
Blue area denotes existing speed limit. Yellow area denotes new area of General Direction.
Local Notice to Mariners 11/2021
01/04/2021 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464
Bar Caernarfon Bar
Mae cymhorthydd mordwyo Port Rhif C8 Fl R 3s ar ei safle priodol.
Safle presennol: 53ᵒ07.68′ Gog 004ᵒ19.33′ Gor
Aid to navigation Port No C8 Fl R 3s is on its appropriate station.
Present position: 53ᵒ07.68′ N 004ᵒ19.33′ W
Local Notice to Mariners 10/2021
01/04/2021 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464
Bar Caernarfon Bar
Mae cymhorthydd mordwyo Port Rhif C2 Fl. R 10s nawr ar ei safle priodol.
53ᵒ07.38′ Gog 004ᵒ24.33′ Gor
Aid to navigation Port No C2 Fl. R 10s is now on its appropriate station station.
53ᵒ07.38′ N 004ᵒ24.33′ W
Local Notice to Mariners 09/2021
01/04/2021 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464
Bar Caernarfon Bar
Mae cymhorthydd mordwyo Starbord Rhif C1 Fl G 5s ar ei safle priodol.
53ᵒ07.18′ Gog 004ᵒ24.60′ Gor
Aid to navigation Starboard No C1 Fl G 5s is on its appropriate station.
53ᵒ07.18′ N 004ᵒ24.60′ W
Longterm Notices to Mariners
Local Notice to Mariners 12/2021
01/04/2021 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464
Harbour Master’s General Direction
5 Knot Speed Limit
By virtue of the provisions of Sec. 52 Harbour, Docks and Piers Clauses Act 1847, Port and harbour of Caernarfon Harbour Master has made the following General Direction:
1. This Direction is given to Masters (see note a) and persons having command or charge of any vessel (see note b) other than those vessels listed in paragraph 4(i) to 4(v).
2. This Direction applies at all times and in the area north of the existing and active speed limit at Y Felinheli. (Now known as the “Y Felinheli to Garreg Ginnog” Area of General Direction). The “Y Felinheli to Garreg Ginnog” means the area below the level of mean high water spring tides bounded by a line drawn along the northern extent of the existing charted speed limit at Y Felinheli and through to a new line drawn from a point 53ᵒ12.30’N 004ᵒ12.44’W to a point 53ᵒ12.40’ N 044ᵒ12.82’W. (Illustrative chart extract at end of NtoM).
3. At the Northern and Southern extent of the entire speed limit. Special Marks will be positioned to demark the area.
4. This Direction is not given to Masters and persons having command or charge of vessels:
(i) used by search and rescue organisations
(ii) of the Caernarfon Harbour Authority
(iii) of HM Customs and Excise
(iv) vessels under sail.
(v) used as safety boats by Yacht and Sailing Clubs and other such organisations when engaged in operations where complying with this Direction would inhibit their ability to fulfil their function as a safety boat
5. No vessel, except those listed in paragraphs 4(i) to 4(v), shall proceed at a speed of greater than 5 knots.
6. This Direction is given notwithstanding the requirements of the International Regulations for Preventing Collisions at Sea (see note c) and The Port and Harbour of Caernarfon Bylaws 1991 (see note d).
7. Not to comply with this Direction is a criminal offence for which the person having command or charge of the vessel may be prosecuted (see note e).
8. The Harbour Master or his deputies will be actively monitoring the compliance with this General Direction.
David John O’Neill
Caernarfon Harbour Master
Notes
a Sec.3 Harbour, Docks and Pier Clauses Act 1847
b As defined in the Port and Harbour of Caernarfon Bylaws 1991.
c Merchant Shipping (Distress Signals and Prevention of Collisions) Regulations 1996 [SI 75/1996]
d Port and Harbour of Caernarfon Bylaws 1991.
e Sec.3 and Sec.53 Harbour, Docks and Piers Clauses Act 1847
Owners, Agents Charterers, Marinas, Yacht Clubs and Recreational Sailing Organisations should ensure that the contents of this Notice are made known to the master or persons in charge of their vessel or craft.
Blue area denotes existing speed limit. Yellow area denotes new area of General Direction.
Local Notice to Mariners 27/2019
31/10/2019 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464
Bar Caernarfon Bar
Nid yw cymhorthydd mordwyo Bwi Tramwyo L FL 10s ar ei safle priodol.
53ᵒ07.00′ Gog 004ᵒ25.00′ Gor
Mae’r cymhorthydd mordwyo wedi derfynwyd dros dro ar gyfer y gaeaf.
Aid to navigation Fairway Buoy L FL10s is not on station.
53ᵒ07.00′ N 004ᵒ25.00′ W
The Aid to navigation has been temporarily discontinued for the winter.
Local Notice to Mariners 14/2019
16/05/2019 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464
Menai Strait
Cynghorir morwyr bod yr ardal a amlygir isod ar y siart, yn benodol o C11 er i C9 wedi datblygu banc tywod sydd rhyw 0.5 metr o ddŵr yn is na Chart Datwm.
Cynghorir morwyr i gymryd rhybudd a rhoi sylw dyledus i’r dyfnder dŵr sydd ar gael wrth fordwyo yn yr ardal hon.
Mariners are advised that the area highlighted below on the chart, specifically from C11 though to C9 has developed a sand bank that has approximately 0.5 meters of water below Chart Datum.
Mariners are advised to take caution and have due regard for the available depth of water when navigating in this area.
