Notices - Mid Estuary - Scroll down as necessary

Week  42

ENGLAND - East Coast - Depths. Drying height. Wreck.

Insert:

depth, 14.7 at 51° 43´·35N., 1° 39´·41E.

depth, 1.5, and extend 2m contour NE to enclose 51° 42´·33N., 1° 38´·55E.  Delete depth, 1.7, close SW and depth, 1.9, close N.

depth, 1.4, and extend 2m contour W to enclose 51° 41´·89N., 1° 38´·27E.  Delete depth, 1.7, close SE and depth, 2.9, close SE.

depth, 0.8, and extend 2m contour NE to enclose 51° 41´·18N., 1° 38´·16E.  Delete depth, 3.5, close SE.

depth, 0.1, and extend 2m contour NE to enclose 51° 40´·01N., 1° 37´·94E.  Delete depth, 1.1, close SW.

depth, 1.9, enclosed by 2m contour at 51° 38´·71N., 1° 37´·33E.

at 51° 37´·77N., 1° 35´·43E.

depth, 15.7 at 51° 39´·99N., 1° 33´·10E.  Delete depth, 16.8, close NE.

depth, 15.7 at 51° 40´·70N., 1° 34´·36E.  Delete depth, 16.8, close NW.

drying height, 0.1, enclosed by 0m low water line at 51° 42´·25N., 1° 31´·14E.

depth, 0.6 at 51° 40´·35N., 1° 37´·65E.  Delete depth, 1.4, close SE.

Replace:

depth, 3.7, with depth, 0.8, enclosed by 2m contour at 51° 42´·72N., 1° 33´·24E.

depth, 6.3, with depth, 4.1, enclosed by 5m contour at 51° 38´·51N., 1° 37´·54E.

depth, 2.8, with depth, 1, enclosed by 2m contour at 51° 36´·95N., 1° 37´·07E.

Notice 4723 refers

The base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.

Affects:

UKHO SNC: 1183, 1610, 1975 and 2449.

UKHO SCC: 5607.2.

Imray Full Charts: C1

Imray Leisure Folios 2000.1

Twelve reductions of depth, one new drying height and one new wreck on the Kentish Knock and Long Sand.  There have been six previous NtM this year about the Kentish Knock and the Long Sand so the image includes all notifications which amount to 36 reductions of depth.  The image is a little ‘busy’!  By and large there are no dramatic changes except one little swatch on the Long Sand east of the Wind Farm which appears to be closed by the drying height.

Week  40

ENGLAND - East Coast - Depths.

Depths less than charted exist in the vicinity of Long Sand Head. The most significant are as follows:

Depth          Position

11·4m          51° 48´·36N., 1° 38´·32E.

11·9m          51° 48´·44N., 1° 37´·86E.

13·7m          51° 48´·39N., 1° 37´·42E.

13·5m          51° 48´·86N., 1° 38´·36E.

Mariners are advised to navigate with caution in the area.  Charts will be updated when surveying activities are complete.

Notice 4551(P) refers

The image is copyright of Crossingthethamesestuary.

Affects:

UKHO SNC: 1975, 2052 and 2692.

UKHO SCC: 5607.2 and 5607.4.

Imray Full Charts: C1

Imray Leisure Folios 2100.1 and 2000.1

This preliminary notice is prompted by the recent Civil Hydrographic Programme and reports 4 reduced depths at the Long Sand Head two-way route.  The depths are relevant to Shipping so leisure craft are unlikely to be hindered.  This year we have had two earlier notices about depths at the Long Sand Head and a Trinity House notice announcing the new East Longsand Head cardinal buoy and the move of the Longsand Head north cardinal.  I have created a drawing of the area incorporating all the changes; these latest 4 in magenta.

Week  39

ENGLAND - East Coast - Depths.

Recent survey information has shown that depths less than charted exist within Gunfleet Sands. The most significant are as follows:

Depth          Position

1·3m            51° 45´·59N., 1° 20´·72E.

2·5m            51° 45´·65N., 1° 21´·01E.

11·3m          51° 45´·73N., 1° 21´·63E.

13·1m          51° 46´·38N., 1° 23´·28E.

Recent survey information has shown that depths less than charted exist within Sunk Sand. The most significant are as follows:

Depth         Position

1·5m           51° 45´·27N., 1° 28´·29E.

3·8m           51° 45´·56N., 1° 28´·60E.

7·7m           51° 41´·23N., 1° 22´·36E.

Recent survey information has shown that depths less than charted exist within Kings Channel. The most significant is 13·8m in position 51° 42´·87N., 1° 22´·20E.

Mariners are advised to navigate with caution in the area.

Charts will be updated when surveying activities are complete.

Notice 4414(P) refers

The base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.

Affects:

UKHO SNC: 1183, 1975, and 2692.

UKHO SCC: 5607.2 and 5607.4.

Imray Full Charts: C1

Imray Leisure Folios 2100.1 and 2000.1

This is a preliminary notice following the recent Civil Hydrology survey reporting reduced depths around the Gunfleet Sands, Sunk Sand and in the Kings Channel.  These comprise 1. 4 reductions of depth, 3 adjacent to the Gunfleet Spit cardinal buoy and a fourth with ample water for use north of the cardinal buoy: 2.  2 reductions at the Sunk Head and a third close to the Middle Sunk: 3. A single reduction in the Kings Channel (or West Swin) with ample water for us.  There had been a Notice earlier this year (NtM 1026) which advised four reduced depths on the Little Sunk following our survey so those are included in the image.  UKHO plan to issue a new edition of SN chart 1975 early next year incorporating all the changes that have been reported this year.  That SNC is the leading chart for electronic chartmakers to follow.

Week  36

ENGLAND - East Coast - Depths.

Replace:

depth, 14.8 , with depth, 14.6 at 51° 48´·92N., 1° 33´·29E.

depth, 15.9 , with depth, 15.4 at 51° 50´·04N., 1° 34´·13E.

Notice 4100 refers

The base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.

Affects:

UKHO SNC: 1183, 1610, 1975 and 2052.

UKHO SCC: 5607.2.

Imray Full Charts: C1

Imray Leisure Folios 2100.1

This is a regular check on depths on the Black Deep DW channel.  Two small reductions of depth between Dynamo and SHM yellow special buoy on the DW line.  Unlikely to hinder leisure craft – and don’t hinder there!

Week  36

ENGLAND - East Coast - Buoy.

Delete

Fl.G.5s at 51° 41´·95N., 1° 11´·70E.

Notice 4032 refers

The base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.

Affects:

UKHO SNC: 1183 and 1975.

UKHO SCC: 5607.3 and 5607.2.

Imray Full Charts: C1

Imray Leisure Folios 2000.1

The SHB marking the SW corner of the Gunfleet Sand Wind Farm has been removed permanently.  The buoy was installed many years ago prior to the installation of the two ‘extra large’ demonstration DONG turbines.  The turbine are, of course, still there and both are lit.

Week  34

ENGLAND - East Coast - Depths. Drying heights.

Insert:

drying height, 1.2 at 51° 41´·97N., 1° 07´·10E.  Delete drying height, 0.5, close S.

drying height, 0.2, and extend 0m low water line E to enclose 51° 42´·05N., 1° 07´·40E.

depth, 1.3 at 51° 42´·22N., 1° 08´·49E.  Delete depth, 1.5, close NE.

depth, 6.9, and extend 10m contour SW to enclose 51° 42´·02N., 1° 09´·17E.  Delete depth, 6, close NW.

depth, 1.3 at 51° 42´·60N., 1° 09´·40E.  Delete depth, 1.8, close N, depth, 1.5, close S and depth, 1.4, close SW (depending on chart).

depth, 4.9, and extend 5m contour SE to enclose 51° 42´·28N., 1° 10´·07E.  Delete depth, 9.7, close SW.

Notice 3917 refers

The base image courtesy of Imray ID10 Chart Y17 and Meridian Chartware.  

Affects:

UKHO SNC: 1183 and 1975.

UKHO SCC: 5607.3 and 5607.2.

Imray Full Charts: C1 and Y17

Imray Leisure Folios 2000.1

This notice provides 6 changes of drying heights and depths at the Spitway as a result of our survey.  As we reported, the east edge of the Buxey Sand has extended a little and a little loss of depth in the line twixt the two safe water buoys; the controlled depth there is 1.1m CD close to the Swin Spitway buoy.  The image includes the ‘new’ wreck reported by the Civil Hydrology Programme vide NtM 3316/24.  I have the issue of the location of the two safe water buoys with Trinity House.  Here you can download the new heights and depths and you can also download our chartlet at:  https://www.crossingthethamesestuary.com/page29.html

Week  33

ENGLAND - East Coast - Depths.

Insert:

depth, 1.1, and extend 2m contour NW to enclose 51° 40´·94N., 1° 37´·61E.

depth, 1.1, and extend 2m contour E to enclose 51° 39´·95N., 1° 37´·86E.  Delete depth, 2.8, close S

depth, 1.4, and extend 2m contour SE to enclose 51° 37´·43N., 1° 37´·44E.

depth, 1, and extend 2m contour E to enclose 51° 40´·43N., 1° 37´·69E.

Notice 3783 refers

The base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.  

Affects:

UKHO SNC: 1183, 1610, 1975 and 2449.

UKHO SCC: 5607.2

Imray Full Charts: C1

Imray Leisure Folios 2100.1 and 2000.1

Further reductions of depth on the Kentish Knock.  This notice reports 4 reductions whilst others have been reported by Notices 2107, 2796 and 3601.  The image shows these reductions of depth in magenta whilst earlier reductions are shown in blue.  Crossing the Kentish Knock is NOT recommended!

Week  33

ENGLAND - East Coast - Depths.

Insert:

depth, 11.5 at 51° 36´·20N., 1° 20´·25E.  Delete depth, 12.4, close NE.

Notice 3809 refers

The base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.  

Affects:

UKHO SNC: 1606, 1607 and 1975.

UKHO SCC: 5606.2 and 5607.2

Imray Full Charts: C1

Imray Leisure Folios 2100.1 and 2000.1

One reduction of depth in the Black Deep right in the middle of the northern entrance of the Fisherman’s Gat but still with ample water for leisure users.  In week 12, NtM 1222 announces a reduction of 7 depths in Fisherman Gat.  The Image includes all the reductions.

Week  30

ENGLAND - East Coast - Depths.

Replace:

depth, 15.2 , with depth, 14.9 at 51° 50´·27N., 1° 34´·50E.

Insert:

depth, 16 at 51° 45´·42N., 1° 30´·98E.  Delete depth, 15.6, close S.

depth, 15.4 at 51° 50´·30N., 1° 34´·38E.  Delete depth, 16.1 , close NW.

Notice 3491 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.

Affects:

UKHO SNC: 1183, 1975, 2052 and 2692.

UKHO SCC: 5607.2.

Imray Full Charts: C1

Imray Leisure Folios 2000.1.

Continual monitoring of the DW channel from the Sunk into the Black Deep.  Three new soundings on the DW line.  None likely to hinder leisure craft but don’t linger!

Week  30

ENGLAND - East Coast - Depths.

Insert:

depth, 5, enclosed by 5m contour at 51° 49´·02N., 1° 25´·44E.  Delete depth, 6.8, close SE.

depth, 1.6, and extend 2m contour NE to enclose 51° 48´·11N., 1° 24´·13E.  Delete depth, 3.5, close E.

depth, 9.1, and extend 10m contour SE to enclose 51° 47´·43N., 1° 20´·02E.

depth, 7 at 51° 49´·30N., 1° 25´·98E.  Delete depth, 8.9, close SE.

depth, 13.4, and extend 15m contour SE to enclose 51° 42´·67N., 1° 33´·73E.

Notice 3530 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.  

Affects:

UKHO SNC: 1183, 1975 and 2052.

UKHO SCC: 5607.2.

Imray Full Charts: C1

Imray Leisure Folios 2000.1.

A total of 5 reductions of depth on and around the Gunfleet Sands and on the east side of the Long Sand.  3 are on the north tail of the Gunfleet Sands, one in the Wallet (twixt Nos 2 and 4) and one reduction of depth on the east side of the Long Sand.  Two images: the Gunfleet and Wallet image includes an obstruction and a wreck vide NtMs 2019 and 2559.  The Long Sand image has a ‘host’ of reductions of depth added vide NtMs 1880 and 2796.  Later this year or early next year we can expect a new edition of Chart 1975.

Week  29

ENGLAND - East Coast - Depths. Wreck. Drying heights.

Insert

drying height, 0.1, enclosed by 0m low water line at 51° 36´·71N., 1° 09´·29E.  Delete depth, 05, close E.

drying height, 0.3, and extend 0m low water line N to enclose 51° 36´·21N., 1° 09´·45E.  Delete drying height, 0.3, close S.

Replace:

depth, 15.4, with at 51° 35´·84N., 1° 10´·79E.

Notice 3363 refers

Base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.  

Affects:

UKHO SNC: 1183, 1607, 1609 and 1975.

UKHO SCC: 5606.6, 5606.2, 5607.3 and 5607.2

Imray Full Charts: C1

Imray Leisure Folios 2000.1, 2100.1.

Two new drying heights either side of the Barrow swatchway on the Barrow Sands and a new wreck identified on the north side of the Barrow Deep.  At 13.8m over the wreck unlikely to hinder leisure craft.

Week  29

ENGLAND - East Coast - Depths.

Insert:

depth, 14.8 at 51° 48´·92N., 1° 33´·29E.  Delete depth, variously 15.2, 15.4 or 15.7, according to chart close NW.

Notice 3414 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.

Affects:

UKHO SNC: 1183, 1610, 1975 and 2052.

UKHO SCC: 5607.2

Imray Full Charts: C1

Imray Leisure Folios 2000.1

One reductions of depth on the Sunk DW line to and from the Black Deep.  This is a regularly check and has, for us, ample water and not where we ought to be.

Week  28

ENGLAND - East Coast - Wreck. Depths.

Insert:

at 51° 42´·84N., 1° 08´·71E.   Delete depth, 4, close SE and depth 4 close SW.

Replace depth, 8.6, with depth, 1.4, enclosed by 2m contour at 51° 42´·57N., 1° 11´·03E.

depth, 5.9, with depth, 1.6, enclosed by 2m contour at 51° 42´·53N., 1° 10´·53E.

Notice 3316 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.  

Affects:

UKHO SNC: 1183 and 1975.

UKHO SCC: 5607.3, and 5607.2

Imray Full Charts: C1

Imray Leisure Folios 2000.1 and 2100.1

Two new reductions of depth and one new wreck at the Spitware.  These changes are identified by last winter’s Civil Hydrography Programme are additions to my chartlet last week.  The wreck has 3.7m water so should not hinder leisure craft.  The two new reductions of depth are outside my survey area being close to the west side of the Gunfleet Sands wind Farm.

Week  27

ENGLAND - East Coast - Buoyage. Fog signal. Automatic Identification System.

Insert:

VQ Long Sand Head at 51° 48´·37N., 1° 38´·16E.

And fog signal, Bell, at the light-buoy.

Replace:

former VQ Bell Long Sand Head with Q(3)10s East Long Sand Head at 51° 48´·12N., 1° 39´·39E.

and Automatic Identification System, AIS, at the light-buoy

Notice 3078 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.  

Affects:

UKHO SNC: 1183, 1610, 1975 and 2692.

UKHO SCC: 5607.2

Imray Full Charts: C1

Imray Leisure Folios 2100.1

This notice confirms the previous notice from Trinity House back in Week 22 that the Long Sand Head NCB was moved and an additional ECB (East Long Sand Head) was installed in the previous position of the NCB.

Week  25

ENGLAND - East Coast - Depths.

Insert:

depth, 0.5, enclosed by 2m contour at 51° 43´·65N., 1° 33´·91E.  Delete depth, 6.6, close SE.

depth, 0.7, enclosed by 2m contour at 51° 43´·09N., 1° 33´·52E.  Delete depth, 4.1, close W.

depth, 0.6, and extend 2m contour SE to enclose 51° 41´·49N., 1° 38´·17E.  Delete depth, 0.7, close NW.

depth, 0.5 , and extend 2m contour N to enclose 51° 38´·07N., 1° 37´·44E.  Delete depth, 2.3, close SE.

 Notice 2796 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.

Affects:

UKHO SNC: 1183 and 1975

UKHO SCC: 5607.2

Imray Full Charts: C1

Imray Leisure Folios 2100.1

This notice has 4 reduced soundings, 2 on the east side of the Long Sand and 2 on the east side of the Kentish Knock.  There have been two previous Notices this year in the same two areas: NtM 1880 and 2107.  That provides a total of 5 reduced depths on the east side of the Long Sand and 7 on the east side of the Kentish Knock.  The images shows all the new depths.

Week  24

ENGLAND - East Coast - Depths.

Insert

depth, 4, and extend 5m contour NE to enclose 51° 33´·36N., 1° 23´·60E.  Delete depth, 5.3, close SE.

Notice 2654 refers

Base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.  

Affects:

UKHO SNC: 1183, 1606 and 1607.

UKHO SCC: 5606.2

Imray Full Charts: C1

Imray Leisure Folios 2000.1

One reduction of depth at the western side of the southern entrance of Fisherman’s Gat.  At 4m, unlikely to hinder leisure craft.

Week  24

ENGLAND - East Coast - Wreck. Depths.

Insert:

depth, 3.1, and extend 5m approximate contour E to enclose 51° 38´·08N., 1° 19´·56E.

Wk at 51° 38´·42N., 1° 17´·29E.  Delete depth, 2.7, close NE.

depth, 6.7, and extend 10m approximate contour E to enclose 51° 38´·05N., 1° 19´·68E.

Notice 2753 refers

Base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.  

Affects:

UKHO SNC: 1183 and 1975.

UKHO SCC: 5606.6, 5606.2 and 5607.2

Imray Full Charts: C1

Imray Leisure Folios 2000.1 and 2100.1

This notice records two reductions of depth and a wreck at the SW Sunk swatchway.  The data is provide by the Port of London Authority dint of their August, 2023 survey.  The wreck was identified by us earlier that year and the PLA kindly surveyed the area to identify the safe water over the wreck.  We did report the PLA data last year but this is now confirmed.  There are two reductions of depth both on the north side of the Black Deep which shows the sands had encroached a little.  This will not hinder us.  The image I am using is based on the contours shown on 2022 so are a little dated.  Please refer to our 2024 download at:  https://www.crossingthethamesestuary.com/page29.htm

Week  22

EAST COAST OF ENGLAND - APPROACHES TO THAMES ESTUARY

The following alterations to buoyage have taken place:

Longsand Head Lighted Buoy

Moved to new position: Latitude 51° 48.366’N., Longitude 001° 38.160’E.

East Longsand Head Lighted Buoy

New station deployed in position: Latitude 51° 48.123’N., Longitude 001° 39.394’E.

Characteristics as below:

 Pillar: Black above Yellow above Black

 Q (3) 10s

 East Cardinal Topmark

 AIS Transmission: MMSI 992351455 “EAST LONGSAND HEAD BUOY”

Movement effected consequent upon a recent survey.

No further notice will be given.

Trinity House Notice to Mariners 5/2024, dated 17th April 2024, previously refers.

Trinity House Notice to Mariners No 8 of 2024 refers

Affects:

UKHO SNC: 1183, 1607,  1975.and 2692

UKHO SCC: 5607.2.

Imray Full Charts: C1

Imray Leisure Folios 2000.1

In Week 18, Trinity House provided us notice of intended move of the Longsand Head lighted buoy and the new station of the East Longsand lighted east cardinal buoy.  Today they have announced that the changes have now be actioned.  The image on Week 18 remains correct.

Week  20

ENGLAND - East Coast - Depths.

Insert:

depth, 8.2 at 51° 29´·44N., 1° 09´·14E.  Delete depth, 7.7, close NW.

Notice 2117 refers

Base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.

Affects:

UKHO SNC: 1606, 1607 and 1609.

UKHO SCC: 5606.5

Imray Full Charts: C1

Imray Leisure Folios 2100.1

One reduction of depth just inside the channel of the Princes Channel between Princes No 5 and No7.  Unlikely to hinder leisure craft.

Week  19

ENGLAND - East Coast - Wrecks. Depths.

Insert:

at 51° 45´·60N., 1° 18´·32E.

at 51° 45´·44N., 1° 17´·41E.

depth, 0.5 at 51° 42´·62N., 1° 30´·92E.  Delete depth, 1.7, close SE.

depth, 06, enclosed by 2m contour at 51° 42´·52N., 1° 30´·62E.  Delete depth, 4, close S.

depth, 2.8 at 51° 39´·71N., 1° 37´·81E.  Delete depth, 7, close SW and depth, 3.5, close SW.

depth, 4.3, and extend 5m contour SE to enclose 51° 38´·82N., 1° 37´·65E.  Delete depth, 8.3, close NW.

depth, 4.4, and extend 5m contour NE to enclose 51° 38´·32N., 1° 37´·70E.  Delete depth, 7.1, close NE.

depth, 4.3, and extend 5m contour SE to enclose 51° 40´·63N., 1° 38´·11E.  Delete depth, 6.6, close S.

depth, 2.9, and extend 5m contour SE to enclose 51° 39´·49N., 1° 37´·73E.  Delete depth, 7, close SW.

Notice 2107 refers

Base image courtesy of Imray ID10 Chart C1 and IN5043 and Meridian Chartware.  

Affects:

UKHO SNC: 1183 and 1975.

UKHO SCC: 5607.4 and 5607.2.

Imray Full Charts: C1

Imray Leisure Folios 2000.1

Two new wrecks on the Gunfleet Sands between the east side of the wind farm and the Old Gunfleet Lighthouse.  Probably unwise to try to cross the sands at that point.  The Notice also has seven reductions of depth, two very shallow depths on the Long Sand, east side of the London Array wind farm and five reductions of depth along the east side of the Kentish Knock.  Probably unwise to cross the Long Sand just east of the wind farm.  Three images: of the second image at the Long Sand three other reductions of depth reported by the earlier Notice 1880 has been included.

Week  18

EAST COAST OF ENGLAND - APPROACHES TO THAMES ESTUARY

Longsand Head Lighted Buoys

On or around the 17th May 2024, the following alterations to buoyage will take place:

Longsand Head Lighted Buoy

To be moved to new position: Latitude 51° 48.366’N., Longitude 001° 38.160’E.

East Longsand Head Lighted Buoy

New station to be deployed in position: Latitude 51° 48.123’N., Longitude 001° 39.394’E.

Characteristics as below:

    Pillar: Black above Yellow above Black

    Q (3) 10s

    East Cardinal Topmark

    AIS Transmission: MMSI 992351455 “EAST LONGSAND HEAD BUOY”

Movement effected consequent upon a recent survey.

Further notice will be given upon buoy deployment.

Trinity House Notice to Mariners, 17/04/2024 No 05 of 2024 refers

Affects:

UKHO SNC: 1183, 1607,  1975.and 2692

UKHO SCC: 5607.2.

Imray Full Charts: C1

Imray Leisure Folios 2000.1

This Trinity House Notice gives advance  information of changes at the Long Sand Head.  On or around 17th May there is a move and a new buoy.  Close to the current position of the Longsand Head north cardinal buoy, a new east cardinal buoy will be positioned designated 'East Longsand Head'  Light characteristics are shown.  Also AIS will be fitted.

The Longsand Head north cardinal buoy is moved to the West providing clearance round the Long Sand Head.  The image is drawn by me based on Imray showing all recent depths and the intended positions.

Week  17

ENGLAND - Thames Estuary - Depths.

Insert:

depth, 1 , and extend 2m approximate contour E to enclose 51° 42´·46N., 1° 33´·17E.

depth, 0.9 , and extend 2m approximate contour SE to enclose 51° 42´·16N., 1° 32´·86E.

depth, 1.1, and extend 2m approximate contour S to enclose 51° 41´·93N., 1° 32´·42E.  Delete depth, 3.5, close SW.

depth, 0.1 , enclosed by 2m contour 51° 36´·42N., 1° 35´·15E.  Delete depth, 5.2, close SE.

depth, 0.9 , enclosed by 2m contour 51° 36´·17N., 1° 34´·69E.  Delete depth, 8.1, close SW.

depth, 0.7 , enclosed by 2m contour 51° 36´·49N., 1° 35´·44E.

Notice 1880 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.  

Affects:

UKHO SNC: 1183, 1607 and 1975.

UKHO SCC: 5607.2.

Imray Full Charts: C1

Imray Leisure Folios 2000.1

Six reductions of depth, three on the Long Sand and three on the Kentish Knock.  The soundings on the Long Sand are outside the Wind Farm to the NE.  The three on the Kentish Knock are just outside the south side of the Wind Farm and quite dramatic: i.e. fro8.1m to 0.9.  But probably not where we usually go.

Week  16

ENGLAND - East Coast - Depths.

Insert:

depth, 2.2 at 51° 47´·88N., 1° 37´·22E.  Delete depth, 4.5, close NE.

depth, 6.9 at 51° 48´·09N., 1° 37´·87E.

depth, 11 at 51° 48´·26N., 1° 38´·16E.

Notice 1784 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.

Affects:

UKHO SNC: 2692.

UKHO SCC: 5607.2.

Imray Full Charts: C1

Imray Leisure Folios 2000.1

Three new reduced depths for SNC 2692 at the Long Sand Head.  A new edition of SNC 2692 was only issued on 28th March!  The reduced depths indicate that the Long Sand Head continues the common trend to extend to the NE.  I understand it is likely the Long Sand Head North Cardinal which is critical marking the tight corner in the two-way TSS will be moved in due course.  The image includes 3 other reduced depths in that area that were reported earlier in NtM 1378 in Week 13.

Week  15

ENGLAND - East Coast - Depths.

Insert:

depth, 16.3 at 51° 51´·20N., 1° 36´·22E.  Delete depth, 17.1, close E.

depth, 16.6 at 51° 51´·12N., 1° 36´·57E.  Delete depth, 17.1, close NW.

Notice 1597 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.  

Affects:

UKHO SNC: 1183 and 1975.  Note: This update is included in New Edition 2692, published 28 March 2024.

UKHO SCC: 5607.2

Imray Full Charts: C1

Imray Leisure Folios 2000.1

Two reductions of depth; this monitoring the DW channel on the Sunk Inner area.  Unlikely to hinder leisure craft.  The image includes a reduced depth vide NtM 1470 previously.

Week  15

ENGLAND - East Coast - Depths.

Insert:

depth, 2.7, and extend 5m contour S to enclose 51° 32´·43N., 1° 01´·64E.  Delete depth, 4, close NW.

depth, 6.2 at 51° 32´·53N., 1° 01´·95E.  Delete depth, 6.7, close SW

depth, 2.7 at 51° 32´·44N., 1° 01´·60E.  Delete depth, 4, close SE.

depth, 5.5 at 51° 32´·34N., 1° 01´·23E.  Delete depth, 7.2, close SW.

depth, 6.1 at 51° 32´·21N., 1° 00´·75E.  Delete depth, 7, close E.

Replace:

depth, 6.5, with depth, 6 at 51° 32´·65N., 1° 02´·22E.

depth, 9.1, with depth, 8.6 at 51° 32´·38N., 1° 01´·58E.

depth, 1.7, with depth, 1.2, and extend 2m approximate contour S to enclose 51° 32´·43N., 1° 01´·51E.

depth, 4.4, with depth, 2.7, and extend 5m contour S to enclose 51° 32´·40N., 1° 01´·47E.

Notice 1608 refers

Base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.  

Affects:

UKHO SNC: 1607 and 1609.

UKHO SCC: 5606.6

Imray Full Charts: C1

Imray Leisure Folios 2100.1

Nine reductions of depth at the Mouse channel side of the SW Barrow knoll.  If you are a ‘corner cutter’ round the knoll (e.g. to or from the Princes Channel into the West Swin) it is worth seeing the image.  Note the edge of that sand is pretty ‘steep-too’ and the tail has shallowed.  Also if you saw NtM 638 earlier this year you will see that the depth almost exactly there has reduced from 4m to 2.7m in a matter of months.

Week  14

ENGLAND - East Coast - Depths.

Insert:

depth, 15.8 at 51° 51´·50N., 1° 36´·12E.  Delete depth, 16.2, close SE.

Notice 1470 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.

Affects:

UKHO SNC: 1975.  Note: This update is included in New Edition 2692, published 28 March 2024.

UKHO SCC: 5607.2

Imray Full Charts: C1

Imray Leisure Folios 2000.1

One reduction of depth NE of the Sunk Inner Mark in line with the DW channel leading to the exit to Felixstowe.  Unlikely to hinder leisure craft.

Week  13

ENGLAND - East Coast - Depths.

Insert:

depth, 9.9, enclosed by 10m contour at 51° 48´·42N., 1° 39´·17E.  Delete depth, 10.7, close NW and depth, 10.3, close NW.

depth, 10.2 at 51° 48´·63N., 1° 39´·41E.  Delete depth, 11.1, close NW and depth, 10.7, close W.

depth, 14, enclosed by 15m contour at 51° 49´·84N., 1° 36´·46E.  Delete depth, 15.9, close W.

Replace:

depth, 10.1, with depth, 9.4, enclosed by 10m contour 51° 50´·02N., 1° 35´·82E.

Notice 1378 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.

Affects:

UKHO SNC: 1183, 1610 and 1975.  Note: This update is included in New Edition 2692, published 28 March 2024.

UKHO SCC: 5607.2

Imray Full Charts: C1

Imray Leisure Folios 2000.1

A reduction of depth, three of which are in the ‘turn’ of the Long Sand Head two-way TSS.  Whilst for us there is ample water, for shipping the reductions are dramatic down to 9.9m.  We can expect a move of the Long Sand Head cardinal buoy before long.  Do not cut across Long Sand Head.(There was a reduction of depth by NTM 29/2024 in the same area so that is included in the image).

Week  13

ENGLAND - East Coast - Buoy.

Amend:

Sunk Centre light-buoy to, Mo(A)15s at 51° 50´·11N., 1° 46´·03E.

Notice 1433 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.

Affects:

UKHO SNC: 1183.

UKHO SCC: 5606.2 and 5607.2

Imray Full Charts: C1

This notice applies only to the small scale chart of the whole Thames Estuary (SNC 1183).  The change is the light characteristics of the Sunk Centre safe water buoy.  I believe most charts are all ready correct.

Week  12

ENGLAND - East Coast - Depths.

Insert:

depth, 8 at 51° 36´·23N., 1° 20´·53E.  Delete depth, 8.3, close SW.

depth, 8.2 at 51° 36´·12N., 1° 20´·28E.  Delete depth, 8.6, close NE.

depth, 4.9, and extend 5m approximate contour NE to enclose 51° 35´·50N., 1° 20´·82E.

depth, 6.2 at 51° 35´·24N., 1° 21´·21E.  Delete depth, 7.1, close SW.

depth, 6.3 at 51° 35´·09N., 1° 21´·44E.  Delete depth, 6.9, close SW.

depth, 5.5 at 51° 35´·57N., 1° 20´·74E.  Delete depth, 6.7, close NW.

Replace:

depth, 9.5, with depth, 9 at 51° 35´·67N., 1° 20´·74E.

Notice 1222 refers

Base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.   

Affects:

UKHO SNC: 1606, 1607 and 1975.

UKHO SCC: 5606.2 and 5607.2

Imray Full Charts: C1

Imray Leisure Folios 2100.1 and 2000.1

7 reduction of depth in Fisherman’s Gat.  Still ample water for leisure craft and still just outside the west side of the buoyage.  But note there is a just the suggestion that the drying patch of the Long Sand on the mid-way west side of the Gat is shallowing: still plenty of water.

Week  12

ENGLAND - East Coast - Depths.

Insert:

depth, 9 at 51° 53´·03N., 1° 31´·00E.  Delete depth, 9.9, close NW.

Notice 1304 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.

Affects:

UKHO SNC: 1183.  Note: This update is included in New Edition 2692, published 28 March 2024.

UKHO SCC: 5607.2

Imray Full Charts: C1

Imray Leisure Folios: 2000.1

One reduction of depth on the east edges of the Roughs Shoals.  At 9m, unlikely to hinder leisure craft.

Week  11

New Editions of ADMIRALTY Charts on 28th March, 2024

Standard National Charts

Chart 2692 England - East Coast, Sunk Inner Precautionary Area.  1:25,000

Small Craft Charts

SCC 5605.8 Dover to Deal. 1:37,500

SCC 5605.9 Deal to Ramsgate.  1:37,500

SCC 5607.4 Southern Approaches to Harwich.  1:50,000

SCC 5607.5 Harwich to Orford Ness.  1:50,000

SCC 5607.6 A Approaches to Harwich and Woodbridge Haven.  1:25,000

B Continuation of River Deben.  1:25,000

SCC 5607.7 Rivers Stour and Orwell.

A River Stour. 1:25,000

B River Orwell. 1:25,000

C Ipswich. 1:10,000

SCC 5607.8 A Rivers Ore and Alde.  1:25,000

B Orford Haven and Approaches.  1:25,000

Includes changes to depths from the latest British Government and Port of London Authority surveys.

Includes full updates for New Edition and Notices to Mariners affecting source charts.

Week  10

ENGLAND - East Coast - Depths.

Insert:

depth, 2.4 at 51° 42´·05N., 1° 25´·32E.  Delete depth, 3.9, close N.

depth, 0.7 at 51° 41´·83N., 1° 25´·65E.  Delete depth, 0.9, close SW.

depth 4.6, and extend 5m contour NW to enclose 51° 41´·75N., 1° 23´·95E.  Delete depth, 6.7, close W.

depth, 2.9 at 51° 41´·18N., 1° 24´·13E.  Delete depth, 3.1, close SE.

Notice 1026 refers

Base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.

Affects:

UKHO SNC: 1183 and 1975.

UKHO SCC: 5606.2 and 5607.2

Imray Full Charts: C1

Imray Leisure Folios 2100.1 and 2000.1

Four reductions of depth on the Little Sunk, two of which are on the usual crossing point and two indicating a slight growth of the Little Sunk knoll.  This change is caused by our 2023 survey and the crossing point is NOT significantly affected.  At the moment the growth of the Little Sunk appears to be quite slow, indeed the worse depth of 0.7m looked like the ‘crest’ of a sand wave.

Week  08

ENGLAND - East Coast - Depths.

Insert

depth, 15.7 at 51° 48´·91N., 1° 33´·34E.  Delete depth, 16, close NE.

Notice 769 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.

Affects:

UKHO SNC: 2692

UKHO SCC: 5607.1

Imray Full Charts: C1

Imray Leisure Folios:  2100.1

One slight reduction of depth right on the line of the Sunk/Black Deep deep water channel.  Obviously the PLA monitors the depth of that channel rigorously.  At 15.7m unlikely to hinder leisure craft but don’t linger!

Week  07

ENGLAND - East Coast - Depth.

Insert:

depth, 4, and extend 5m contour SE to enclose 51° 32´·43N., 1° 01´·61E.

Notice 638 refers

Base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.  

Affects:

UKHO SNC: 1607 and 1609

UKHO SCC: 5606.6

Imray Full Charts: C1

Imray Leisure Folios:  2100.1

One reduction of depth in the Mouse Channel east of the SW Barrow cardinal buoy.  Unlikely to hinder leisure craft.  The Image also includes the detail of NtM 335 regarding the new ‘obstn’ west of the ‘Alice’ Danger mark.

Week  05

ENGLAND - East Coast - Obstruction. Buoy.

Insert:

at 51° 31´·92N., 1° 02´·86E.

(3 buoys), close E of 51° 31´·92N., 1° 02´·86E.

Notice 447 refers

Base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.

Affects:

UKHO SNC: 1607 and 1609

UKHO SCC: 5606.5

Imray Full Charts: C1

Imray Leisure Folios:  2100.1

This is a catch-up NtM repeating NTM 335 to notifying the change for the relevant Small Craft Chart about the new ‘obstn’ in the Mouse Channel and the adjacent three unlit Orange buoys; all these close to an existing lit yellow special buoy.

Week  04

ENGLAND - East Coast - Obstruction. Buoy.

Insert:

at 51° 31´·92N., 1° 02´·86E.

(3 buoys), close E of 51° 31´·92N., 1° 02´·86E.

Notice 335 refers

Base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.

Affects:

UKHO SNC: 1607 and 1609

UKHO SCC: 5606.6 and 5606.2

Imray Full Charts: C1

Imray Leisure Folios:  2100.1

A new ‘obstn’ in the Mouse Channel east of the SW Barrow west cardinal buoy and west of the ‘Alice’ danger buoy.  Adjacent to the new ‘obstn’ are three unlit Orange buoys; all these close to an existing lit yellow special buoy.

Week  03

ENGLAND - Thames Estuary - Depths.

Insert:

depth, 4.3, and extend 5m contour N to enclose 51° 33´·27N., 1° 17´·39E.  Delete depth, 6.3, close NW.

depth, 7.9 at 51° 33´·34N., 1° 18´·34E.  Delete depth, 8.4, close SW.

depth, 6.8 at 51° 33´·24N., 1° 19´·27E.  Delete depth, 7.7, close SW.

depth, 6 at 51° 33´·16N., 1° 19´·61E.  Delete depth, 7.3, close SE.

Replace:

depth, 8, with depth, 7.3 at 51° 32´·98N., 1° 20´·25E.

Notice 196 refers

Base image courtesy of Imray ID10 Chart IN5036 and Meridian Chartware.

Affects:

UKHO SNC: 1183, 1606 and 1607

UKHO SCC: 5606.6 and 5606.2

Imray Full Charts: C1

Imray Leisure Folios:  2100.1

5 reductions of depth in the North Edinburgh Channel.  None of the reductions are likely to hinder leisure craft and if that is all affecting the North Edinburgh channel it is logical that the Channel remains as it used to be.  No buoyage of course.

Week  01

ENGLAND - East Coast - Depths.

Note: This update is included in New Edition 2052, published 28 December 2023.

Insert:

depth, 15.2 at 51° 48´·78N., 1° 37´·39E.  Delete depth, 16.3, close NW.

Notice 29 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.  

Affects:

UKHO SNC: 1975 and 2692

UKHO SCC: 5607.2

Imray Full Charts: C1

Imray Leisure Folios:  2000.1 and 2100.1

One reduction of depth in the Long Sand Head two-way route.  As at 15.2m this is the business of the larger container ships, unlikely to hinder leisure craft.

SCROLL DOWN FOR PRE-2024 NOTICES

Week  51

ENGLAND - East Coast - Wreck. Depth.

Insert :

at 51° 41´·88N., 1° 18´·93E.

Replace:

depth, 11.9, with depth, 11.8 at 51° 41´·24N., 1° 17´·59E.

Notice 4832 refers

Base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.  

Affects:

UKHO SNC: 1183 and 1975

UKHO SCC: 5606.6 and 5607.2

Imray Full Charts: C1

Imray Leisure Folios:  2000.1

One new wreck and one new depth in the Barrow Deep.  Both will be unlikely to hinder any leisure craft but note that the wreck is in the corner of the Barrow Deep Anchorage!

Week  47

ENGLAND - East Coast - Dredged areas. Legends. Note.

Amend:

legend to, Dredged to 16·0m, centred on: 51° 55´·91N., 1° 25´·29E.

legend to, 16·0m, centred on: 51° 53´·09N., 1° 33´·61E.

Insert limit of dredged channel, pecked line, joining:

51° 52´·37N., 1° 33´·16E.

51° 52´·24N., 1° 33´·20E.

Delete former limit of dredged channel, pecked line, joining:

51° 52´·37N., 1° 33´·16E.

51° 52´·24N., 1° 33´·14E.

legend, Channel Deepening (see Note), centred on:

51° 56´·36N., 1° 31´·25E.

51° 52´·93N., 1° 33´·60E.

Notice 4352 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.  

Affects:

UKHO SNC: 1183, 1610 and 2692

UKHO SCC: 5607.2.

Imray Full Charts: C1 and Y16

This notice changes the depth of the dredged channel from the Sunk to and into Felixstowe to an increased 16m and extends the marked channel to extend south right up to the S. Threshold yellow special lit buoy.

Week  42

ENGLAND - Thames Estuary - Depth.

Insert:

depth, 7.9 at 51° 29´·33N., 1° 09´·19E.

Notice 3764 refers

Base image courtesy of Imray ID10 Charts IN5043 and Meridian Chartware.

Affects:

UKHO SNC: 1606, 1607 and 1609

UKHO SCC: 5606.2

Imray Full Charts: Y16

Imray Leisure Charts: 2100.1

One reduction of depth right in the middle of the Princes Channel north of the Princes Mid yellow special lit buoy.  Not where you need to be and unlikely to hinder leisure craft.

Week  35

ENGLAND - East Coast - Light-float. Automatic Identification System. Buoy. Fog signal.

The Sunk Inner light-float, Fl(5)15s11m12M, Horn(1)30s, Racon(T), AIS, in position 51° 51´·17N., 1° 34´·40E. has been temporarily removed. A Safe Water Buoy, LFl.10s9M, Wave Actuated Bell, Racon(T), AIS has been temporarily established in its place.

Mariners are advised to navigate with caution in the area.

Notice 2977(T) refers

Base image courtesy of Imray ID10 Charts C1 and Meridian Chartware.  

Affects:

UKHO SNC: 1183, 1406, 1408, 1610, 1975, 2052, 2182A and 2692.

UKHO SCC: 5607.1, 5607.2 and 5614.25

Imray Full Charts: C1

Imray Leisure Charts: 2000.1

A temporary notice reporting a short term replacement for the Inner Sunk safe water mark.  The light float is removed for service and has a safe water buoy with different light characteristics substituted.  Last I saw the light float on the Shotley TH mooring.

Week  31

EAST COAST OF ENGLAND - APPROACHES TO HARWICH - HARWICH DEEP WATER CHANNEL

The following buoys have been returned to their assigned positions:

Walker Lighted Buoy

Moved back to assigned position: Latitude 51° 53.791’N., Longitude 001° 33.903’E.

Southwest Shipwash Lighted Buoy

Moved back to assigned position: Latitude 51° 54.750’N., Longitude 001° 34.213’E.

Trinity House Notice to Mariners 12/2023, dated 3rd April 2023, is hereby cancelled.

Trinity House No 20 of 2023 refers

Affects:

UKHO SNC: 2052

UKHO SCC: 5607.1 and 5607.2

Imray Full Charts: C1

Imray Leisure Charts: 2000.1

The temporary movement of the Walter and Southwest Shipwash lighted buoys to facility the dredging working for the Deep Water Channel from the Sunk to Felixstowe is now cancelled and the buoys back to their normal charted positions.  No image.

Week  30

New Editions of ADMIRALTY Charts to be published 10 August 2023

Chart 1606 - England - East Coast, Thames Estuary Fisherman's Gat to Princes Channel.  1:25,000

Chart 1607 - International Chart Series, England - East Coast, Thames Estuary, Southern Part.  1:50,000

Chart 1609 England - East Coast, Thames Estuary, Knock John Channel to Sea Reach.  1:25,000

Includes significant safety-related information as follows: Includes changes to depths from the latest Port of London Authority surveys.

Week  26

New Editions of ADMIRALTY Charts to be published 13 July 2023

SNC 1975 England - East Coast, Thames Estuary, Northern Part.  1:50,000

Includes changes to depths from the latest Port of London Authority and Trinity House surveys.

Week  26

ENGLAND - East Coast - Drying heights. Wreck.

Insert:

drying height, 0.4, and extend 0m approximate low water line N to enclose 51° 38´·43N., 1° 24´·35E.

drying height, 0.3, and extend 0m low water line NW to

enclose 51° 42´·32N., 1° 30´·32E.

Delete:

, close SE of 51° 42´·32N., 1° 30´·32E.

Notice 2189 refers

Base image courtesy of Imray ID10 Chart ON5043 and Meridian Chartware.

Affects:

UKHO SCC: 5606.2 and 5607.2

Imray Full Charts: C1

Imray Leisure Charts: 2100.1 and 2000.1.

This notice is including two new drying heights and a deletion of a wreck that were reported in NtM 1798 in Week 22.  These new drying heights are both on the Long Sand and are included to update two UKHO small craft charts.  I am repeating what I said in week 22:  “Three new drying areas around the Black Deep: one on Long Sand at the edge of the Black Deep No 6 port hand buoy, a second, a drying area, on the Long Sand near the Black Deep No 4 close to the old Beacon, the third, again on the Long Sand where a wreck was once marked at 3.2m.

On the Little Sunk a depth is reduced to 0.9m which formerly was marked close by as 1.8m.  That does not affect the Little Sunk ‘crossing’ but suggests it is worth a re-survey which we will do at the second opportunity.”

Week  22

ENGLAND - East Coast - Depths. Drying heights. Drying contour. Legend. Wreck.

Insert:

drying height, 0.4, and extend 0m approximate low water line N to enclose 51° 38´·43N., 1° 24´·35E.

drying height, 0.3, and extend 0m low water line NW to enclose 51° 42´·32N., 1° 30´·32E.

depth, 0.9, and extend 2m contour S to enclose 51° 41´·77N., 1° 25´·57E.  Delete depth, 1.8, close NE.

circular limit of 0m low water line, radius 60m, centred on: (b) 51° 41´·65N., 1° 29´·46E.

legend, Dries, close W of: (b) above

Replace:

depth, 15.9, with depth, 15.8 at 51° 44´·93N., 1° 30´·63E.

Delete:

, at 51° 42´·32N., 1° 30´·32E.

Notice 1798 refers

Base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.

Affects:

UKHO SNC: 1183, 1975 and 2692

UKHO SCC: 5606.2 and 5607.2

Imray Full Charts: C1

Imray Leisure Charts: 2100.1 and 2000.1.

Three new drying areas around the Black Deep: one on Long Sand at the edge of the Black Deep No 6 port hand buoy, a second, a drying area, on the Long Sand near the Black Deep No 4 close to the old Beacon, the third, again on the Long Sand where a wreck was once marked at 3.2m.

On the Little Sunk a depth is reduced to 0.9m which formerly was marked close by as 1.8m.  That does not affect the Little Sunk ‘crossing’ but suggests it is worth a re-survey.

Finally there is a tiny reduction of 0.1m in the centre of the Black Deep deep water channel.

Week  22

ENGLAND - East Coast - Channel limits. Channel depth.

1. Secondary Channels have been established adjacent to the main Knock John Channel.

2. A Northern Inbound channel has been established in an area bounded by the following positions:

51° 33´·79N., 1° 10´·75E.

51° 33´·71N., 1° 10´·85E.

51° 33´·50N., 1° 10´·29E.

51° 33´·42N., 1° 10´·10E.

51° 33´·08N., 1° 09´·24E.

51° 33´·06N., 1° 09´·20E.

51° 33´·01N., 1° 09´·07E.

51° 33´·00N., 1° 09´·05E.

51° 32´·99N., 1° 09´·03E.

51° 32´·87N., 1° 08´·72E.

51° 32´·47N., 1° 07´·74E.

51° 32´·47N., 1° 07´·73E.

51° 32´·14N., 1° 06´·93E.

51° 32´·08N., 1° 06´·77E.

51° 32´·06N., 1° 06´·72E.

51° 32´·14N., 1° 06´·63E.

51° 33´·52N., 1° 10´·05E.

3. A Southern Outbound channel has been established in an area bounded by the following positions:

51° 33´·50N., 1° 11´·11E.

51° 33´·26N., 1° 10´·45E.

51° 31´·85N., 1° 06´·98E.

51° 31´·93N., 1° 06´·88E.

51° 32´·14N., 1° 07´·40E.

51° 32´·39N., 1° 08´·02E.

51° 32´·41N., 1° 08´·07E.

51° 32´·57N., 1° 08´·47E.

51° 32´·59N., 1° 08´·52E.

51° 32´·70N., 1° 08´·80E.

51° 32´·72N., 1° 08´·84E.

51° 32´·83N., 1° 09´·10E.

51° 32´·91N., 1° 09´·31E.

51° 32´·96N., 1° 09´·43E.

51° 32´·96N., 1° 09´·43E.

51° 32´·97N., 1° 09´·44E.

51° 32´·99N., 1° 09´·49E.

51° 33´·33N., 1° 10´·35E.

51° 33´·58N., 1° 11´·01E.

4. The minimum depth within the new secondary channels is 9m and vessels which can safely navigate outside of the main Knock John Channel should do so.

5. Mariners are advised to navigate with caution in the area and consult the local port authorities for the latest information.

6. These changes will be included in New Edition of Charts 1606, 1607 and 1609 to be published mid 2023.

Notice 1830(P) refers

Base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.  

Affects:

UKHO SNC: 1606, 1607 and 1609

UKHO SCC: 5606.2

Imray Full Charts: C1

Imray Leisure Charts: 2100.1.

The Port of London Authority has established two secondary channels either side of the existing established Knock John Channel.  These secondary channels alongside from the Knock John port hand buoy ‘paired’ with the Knock John No 1 south cardinal buoy to the Knock John No 7.

The secondary channels have a minimum depth of 9m and vessels which can safely navigate outside of the main Knock John Channel should us it rather than the established Channel.  Note that the northern side of the Knock John are for inbound vessels and the southern side for outbound vessels.

Week  21

ENGLAND - East Coast - Depth.

Insert:

depth, 4.4, and extend 5m contour S to enclose 51° 32´·40N., 1° 01´·46E.

Notice 1752 refers

Base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.  

Affects:

UKHO SNC: 1607 and 1609

UKHO SCC: 5606.2

Imray Full Charts: C1

Imray Leisure Charts: 2100.1.

One reduction of depth on the tail of the SW Barrow sands.  At 4.4m unlikely to hinder leisure craft.

Week  20

ENGLAND - East Coast - Depths.

Insert:

depth, 1.8, enclosed by 2m contour at 51° 31´·70N., 1° 13´·71E.  Delete depth, 5.6, close W and depth, 7.8, close SE.

depth, 1, and extend 2m contour S to enclose 51° 31´·86N., 1° 14´·91E.  Delete depth, 2.5, close N.

depth, 6 at 51° 31´·26N., 1° 15´·62E.  Delete depth, 9.6, close E.

depth, 0.6, and extend 2m approximate contour S to enclose 51° 32´·00N., 1° 14´·63E.

depth, 2.3 at 51° 31´·68N., 1° 15´·12E.

depth, 4.8, enclosed by 5m contour at 51° 31´·44N., 1° 15´·29E.  Delete depth, 7.5, close SW.

depth, 3.9, and extend 5m contour SW to enclose 51° 31´·57N., 1° 14´·18E.  Delete depth, 5.7, close NE.

depth, 4.3, enclosed by 5m contour at 51° 31´·58N., 1° 13´·81E.  Delete depth, 7.8, close NE.

depth, 3.6, and extend 5m approximate contour SW to enclose 51° 31´·76N., 1° 13´·15E.  Delete depth, 7.1, close SE.

depth, 4.6, and extend 5m approximate contour SW to enclose 51° 31´·85N., 1° 12´·84E.

Notice 1670 refers

Base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.

Affects:

UKHO SNC: 1183, 1606 and 1607

UKHO SCC: 5606.5 and 5606.6 Note: This update is included in the New Edition 5606_2, published 25 May 2023.

Imray Full Charts: C1

Imray Leisure Charts: 2100.2

Ten reductions of depth in the South Edinburgh Channel.  Still feasible but of course not ‘buoyed’.

Week  16

ENGLAND - East Coast - Depths.

Insert:

depth, 13.3 at 51° 29´·40N., 0° 52´·43E.  Delete depth, 13.4, close E.

depth, 14.2, and extend 15m contour S to enclose 51° 31´·81N., 1° 05´·74E.

depth, 15, and extend 15m contour SE to enclose 51° 32´·43N., 1° 07´·70E.  Delete depth, 15.2, close SW.

depth, 14.4 at 51° 32´·37N., 1° 07´·72E.  Delete depth, 14.6, close S.

depth 8.1 at 51° 29´·49N., 1° 07´·63E.  Delete depth, 8.4, close W and depth 8.3 close E.

depth 7.2 at 51° 29´·38N., 1° 06´·75E.  Delete depth, 7.3, close E and depth, 5.8, close SE.

depth, 12.6 at 51° 29´·09N., 0° 54´·89E.  Delete depth, 11.4, close N.

depth, 13 at 51° 31´·51N., 1° 04´·56E.  Delete depth, 15.9, close E.

Replace:

depth, 15.5, with depth, 15.4 at 51° 32´·08N., 1° 07´·20E.

depth, 14.7, with depth, 14.5 at 51° 32´·48N., 1° 08´·01E.

depth, 7.9, with depth, 7.8 at 51° 29´·36N., 1° 07´·63E.

Notice 1358 refers

Base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.  

Affects:

UKHO SNC: 1185, 1606, 1607 and 1609

UKHO SCC: 5606.7, 5606.9 and 5606.5

Imray Full Charts: C1

Imray Leisure Charts: 2100.1 and 2100.2

11 reductions of depth, 2 around the sea Reach No 1 area and West Oaze, 3 around the Princes Nos 6 and 7 buoys and 6 in the Mouse and Knock John Channels.  All unlikely to hinder leisure craft.

Week  9

ENGLAND - East Coast - Depths.

Insert

depth, 13.5 at 51° 33´·11N., 1° 09´·78E.  Delete depth, 13, close S and SW.

depth, 14.2 at 51° 33´·17N., 1° 09´·78E.

depth, 13.5 at 51° 33´·23N., 1° 10´·05E.  Delete depth, 13.6, close W and delete depth, 13.6, close W.

Replace

depth, 13.9, with depth, 13.7 at 51° 33´·19N., 1° 09´·55E.

Notice 813 refers

Base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.

Affects:

UKHO SNC: 1606, 1607 and 1609

UKHO SCC: 5606.6

Imray Full Charts: C1

Imray Leisure Folios: 2100.1

An extraordinary tight cluster of 4 reductions of depth around the Knock John Buoys Nos 2 and 3.  Not likely to hinder leisure craft but clearly is tight at LWS for big container ships there!

Week  8

ENGLAND - East Coast - Depths.

Insert

depth, 10.3 at 51° 48´·45N., 1° 39´·13E.  Delete depth, 10.7, close NW.

depth, 10.7 at 51° 48´·63N., 1° 39´·37E.  Delete depth, 11.1, close NW.

Notice 738 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.

Affects:

UKHO SNC: 1975 and 2052

Imray Full Charts: C1

Imray Leisure Folios: 2100.1 and 2000.1

Two additional reductions of depth at the Long Sand Head in the ship’s Two-Way Route.  Notice 359 earlier this year had reductions on the Long Sand Head so I have updated the earlier image to include these two new depths (in blue) with the earlier reductions.  Continued movement NE of the Long Sand head.

Week  7

ENGLAND - East Coast - Depths.

Insert:

depth, 7.3 at 51° 29´·40N., 1° 06´·34E.  Delete depth, 6.1, close S.

depth, 7.3 at 51° 29´·37N., 1° 06´·77E.

Replace:

depth, 7.4, with depth, 7.6 at 51° 29´·60N., 1° 07´·04E.

Notice 589 refers

Base image courtesy of Imray ID10 Chart IN5043 and Meridian Chartware.

Affects:

UKHO SNC: 1606, 1607 and 1609

UKHO SCC: 5606.2 and 5606.5

Imray Full Charts: C1

Imray Leisure Folios: 2100.1 and 2100.2

Two very slight reductions of depth in the centre of the Deep Water line of the Princes Channel abaft the Princes No 6 PHB and one reduction at the Princes No 7 SHB.  Unlikely to hinder leisure craft and unlikely where we ought to be!

Week  7

ENGLAND - East Coast - Depths.

Insert:

depth, 15.7 at 51° 51´·93N., 1° 35´·74E.  Delete depth, 16.7, close W.

15.2 at 51° 51´·73N., 1° 35´·47E.  Delete depth, 15.7, close NW.

depth, 14.5, enclosed by 15m contour at 51° 50´·75N., 1° 33´·52E.  Delete depth, 15.7, close SE.

Notice 636 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.

Affects:

UKHO SNC: 2692

UKHO SCC: 5607.2

Imray Full Charts: C1

Imray Leisure Folios: 2100.1 and 2000.1

Three reduction of depth in and around the Sunk Inner Precautionary Area.  Unlikely to hinder leisure craft.

Week  5

ENGLAND - East Coast - Depths.

Note: This update is included in New Edition 1975, published 19 January 2023.

Insert:

depth, 7.9, and extend 10m contour NE to enclose 51° 48´·16N., 1° 38´·19E.  Delete depth, 8.4, or 9.2 close SW or 9.3 close W, depending on which chart to correct.

sounding out of position, 16. at 51° 48´·34N., 1° 36´·94E.  Delete depth, 17.9, close SE. (the sounding is at the Black Deep port hand buoy, hence ‘out of position)

depth, 15.9 at 51° 48´·29N., 1° 37´·44E.  Delete depth, 17.5, close W.

depth, 12.1 at 51° 48´·24N., 1° 38´·33E.  Delete depth, 12.9, close S.

depth, 10.7 at 51° 48´·14N., 1° 38´·89E.  Delete depth, 11.4, close N.

depth, 14.4, and extend 15m contour E to enclose 51° 48´·13N., 1° 39´·52E.

depth, 11.4 at 51° 48´·09N., 1° 39´·21E.  Delete depth, 13.4, close SE.

depth, 10.8 at 51° 48´·11N., 1° 38´·46E.  Delete depth, 11.8, close SW.

depth, 6.7 at 51° 48´·05N., 1° 37´·97E.  Delete depth, 8.8, close SE.

depth, 4.9, and extend 5m contour NE to enclose 51° 47´·99N., 1° 37´·72E.  Delete depth, 7.1, close NE.

depth, 6.3 at 51° 47´·98N., 1° 37´·49E.  Delete depth, 6.7, close E.

depth, 9.2, and extend 10m contour N to enclose 51° 48´·10N., 1° 37´·79E.  Delete depth, 12.8, close N.

Notice 359 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.  

Affects:

UKHO SNC: 1610 and 2692

UKHO SCC: 5607.2

Imray Full Charts: C1

Imray Leisure Folios: 2000.2

Twelve reductions of depth in and around the Long Sand Head.  The reductions indicate the Long Sand Head continues to extend to the North-East.  A transit between the Long Sand Head north cardinal and the Black Deep port hand buoy will still be fine but when coming from the north, do not cut off the Long Sand Head direct to the Black Deep port hand buoy.

Week  4

New Editions of ADMIRALTY Standard National Charts on 9th  February, 2023

Chart 1183 - International Chart Series, England - East Coast, Thames Estuary.  1:100,000

Includes changes to depths from the latest British Government and Port of London Authority Surveys.

Week  4

ENGLAND - East Coast - Depths.

Insert:

depth, 8.1 at 51° 36´·23N., 1° 20´·58E.  Delete depth, 8.5, close SE.

depth, 7.7 , and extend 8m approximate contour NE to enclose 51° 36´·06N., 1° 20´·21E.  Delete depth, 8.1, close SW.

Notice 318 refers

Base image courtesy of Imray ID10 Chart C1 and Meridian Chartware.

Affects:

UKHO SNC: 1606

UKHO SCC: 5606.2.

Imray Full Charts: C1

Imray Leisure Folios: 2000.1 and 2100.1

Two revised depths at the entrance of Fisherman’s Gat.  With at least 7.7m water unlikely to hinder leisure craft.

Week  2

New Editions of ADMIRALTY Charts on 19th January, 2023

Chart 1975 England - East Coast, Thames Estuary, Northern Part. 1:50,000

Chart 2052 International Chart Series, England - East Coast, Orford Ness to The Naze.  1:50,000

I

Includes changes to depths from the latest British Government, Port of London Authority, and Trinity House surveys.

Includes changes to depths from the latest British Government and Port of London Authority Surveys.