Publishing information

No published NtM booklet on December 25, 2025. Next booklet planned to be published January 1, 2026. Please note that notices always can be found continuously via "search the database", which is updated every office working day.

Current P- and T-notices

Preliminary and temporary notices

This table provides information about conditions or activities of a temporary character, for example harbour or fairway work, change of buoyage, artillery practice, temporary regulations etc.

The table is organized by geographical area. In the case of a notice being relevant to several areas it is listed for all areas.

Preliminary and temporary notices: The notice number is a link to the actual notice. To the left of the notice number you can find the year and NtM issue number (year:serial number). If the NtM issue number is omitted, the notice has not yet appeared in the printed NtM.

Start/Stop: The time period during which the information is current.

A Preliminary notice (P-notice) - an activity or condition that will become permanent and will result in a chart revision. A P-notice will always be followed later by a notice of effect.

A Temporary notice (T-notice) - conditions that will not become permanent.

NtM database updated: 12/26/2025 8:35 PM

Bay of Bothnia

Notice	Start	Stop	Title
2025:1091/19661(T)	10/22/2025	Until further notice	S of Piteå. Bondöfjärden. Jävreholmen. Stupsten. Lights Lillhörun övre and nedre. Unlit.
2025:1091/19662(T)	10/29/2025	Until further notice	SE of Kalix. Halsöfjärden. Halsön. Light 'Halsö'. Unlit.
2025:1091/19667(T)	10/27/2025	1/31/2026	Skellefteå. Skelleftehamn. Kallholmsfjärden. Temporary breakwater.

The Quark

Notice	Start	Stop	Title
2025:1095/19754(T)	11/24/2025	6/30/2026	TSS in Norra Kvarken. Buoyage withdrawn for the winter 2026.

Sea of Bothnia

Notice	Start	Stop	Title
2025:1092/19699(T)	10/31/2025	Until further notice	NE of Härnösand. Lungön. Hemsön. Bönskäret. Wreck.

Sea of Åland and Archipelago Sea

Notice	Start	Stop	Title
2025:1056/19031(T)	1/8/2025	Until further notice	Fairway to Hallstavik. SE of Ormösundet. Edeboviken. Obstructions. Depth.

Northern Baltic

Notice	Start	Stop	Title
2025:1097/19793(T)	12/17/2025	3/31/2026	Stockholm. Strömmen. Victoriaslussen. Works.
2025:1096/19774(T)	12/5/2025	3/31/2026	E of Huvudskär. Buoyage.
2025:1094/19723(T)	12/1/2025	3/31/2026	Stockholm. Strömmen. Kastellholmen. Works.
2025:1093/19713(T)	10/31/2025	4/16/2026	Stockholm. Danvikskanalen. Bridge 'Danviksbron'. Restrictions.
2025:1092/19686(T)	10/29/2025	Until further notice	Norrköping. Händelö. Pampushamnen. Quay 6. Works. Buoyage.
2025:1087/19584(T)	9/29/2025	5/31/2026	SSW of Nynäshamn. Krabbfjärden. Bråtknösen. ODAS buoy.
2025:1080/19448(T)	9/1/2025	3/31/2026	Stockholm. Saltsjön. Danvikskanalen. Saltsjökvarn. Works. Closed area.
2025:1075/19428(T)	8/15/2025	1/31/2026	Southern Baltic. Nordstream 2. Works.
2025:1065/19242(T)	5/14/2025	Until further notice	N of Gotland. Gotska Sandön. Light 'GOTSKA SANDÖN' unlit. Works.
2024:1040/18653(T)	8/19/2024	Until further notice	Nyköping. Depth in part of fairway.

Lake Mälaren and Södertälje Canal

Notice	Start	Stop	Title
2025:1098/19781(T)	1/13/2026	1/15/2026	Södertälje. Channel 'Södertälje kanal'. The lock in Södertälje. Closed Area. January 13 - 15, 2026.
2025:1097/19766(T)	12/4/2025	4/30/2026	Stockholm. Stora Essingen. Lilla Essingen. Bridge 'Essingebron'. Repair works. Buoyage.
2025:1097/19793(T)	12/17/2025	3/31/2026	Stockholm. Strömmen. Victoriaslussen. Works.
2025:1087/19616(T)	10/1/2025	3/31/2026	Södertälje. The lock in Södertälje. Lock opening times for vessels LOA <24 m.
2025:1049/19002(T)	1/21/2016	Until further notice	Södertälje kanal. Extensive works. 'Mälarprojektet'.
2024:1044/18931(T)	11/28/2024	Until further notice	Mälaren. Grönsöfjärden. Ringsökalven. Skjutgrund. Wreck. Virtual AIS.
2024:1038/18810(T)	10/17/2024	Until further notice	Lake "Mälaren". Uppsala. Fyrisån. Kungsängen. Bridge "Tullgarnsbron". Deviating depths.
/19593(T)	2/11/2026	2/18/2026	Södertälje. Channel 'Södertälje kanal'. The lock in Södertälje. Fairway closed for all traffic.

Central Baltic

Notice	Start	Stop	Title
2025:1097/19786(T)	12/12/2025	4/30/2026	Gotland. E of Gammelgarn. S of light 'Östergarn'. ODAS buoy temporarily withdrawn.
2025:1091/19665(T)	10/23/2025	Until further notice	Gotland. Visby. Visby Hamn. Buoy.
2025:1087/19601(T)	9/25/2025	5/29/2026	Gotland. Visby. Works off berth 10 and 11.
2025:1083/19516(T)	8/29/2025	3/1/2026	Kalmar. Port of Kalmar. Barlastholmen. Nya hamnen. Works at quay.
2025:1079/19454(T)	8/5/2025	Until further notice	Gotland. Stora Karlsö. Light ST KARLSÖ. Sectors. Range. Works.
2025:1075/19428(T)	8/15/2025	1/31/2026	Southern Baltic. Nordstream 2. Works.
2022:918/16901(T)	7/1/2022	Until further notice	Öland. Kårehamn. Less depth.

South-Eastern Baltic

Notice	Start	Stop	Title
2025:1075/19428(T)	8/15/2025	1/31/2026	Southern Baltic. Nordstream 2. Works.

Southern Baltic

Notice	Start	Stop	Title
2025:1098/19750(T)	1/13/2026	2/26/2026	S of Åhus. Ravlunda. Firing exercises. January 13 - 20, 2026.
2025:1096/19768(T)	12/1/2025	Until further notice	Trelleborg. Lights on breakwaters unreliable.
2025:1094/19730(T)	11/3/2025	4/3/2026	South and East coast of Skåne. Porpoise detectors. Foul ground.
2025:1085/19554(T)	10/6/2025	4/25/2026	S of Karlshamn. Hanö sund. Hanö. Hanö Marina. Works.
2025:1075/19428(T)	8/15/2025	1/31/2026	Southern Baltic. Nordstream 2. Works.
2024:1046/18982(T)	12/16/2024	Until further notice	SW of Karlskrona. Hasslö. Bridge "Hasslöbron". Temporary phone number for bridge opening.
2023:978/17910(T)	8/30/2023	Until further notice	Sölvesborg. Reduced maximal draught.
2023:945/17355(T)	1/10/2023	Until further notice	SE of Bornholm. Nordstream pipeline. Recommendation.

The Sound

Notice	Start	Stop	Title
2025:1094/19730(T)	11/3/2025	4/3/2026	South and East coast of Skåne. Porpoise detectors. Foul ground.
2025:1091/19664(T)	10/22/2025	1/1/2026	Landskrona. Landskrona hamn. Skeppsbrokajen. Temporary Light.
2025:1058/19129(T)	3/10/2025	Until further notice	W of Malmö. Flintrännan. Light Nr 18 is missing.
2022:910/16761(T)	5/9/2022	Until further notice	Landskrona. Marina. Depth.

Kattegat

Notice	Start	Stop	Title
2025:1098/19789(T)	1/13/2026	1/18/2026	W of Halmstad. Ringenäs. Firing exercise. January 13 - 18, 2026.
2025:1098/19800(T)	12/15/2025	3/31/2026	N of Varberg. Båtafjorden. Dredging operations.
2025:1087/19583(T)	9/26/2025	5/31/2026	Göteborg. N of Galterö huvud. Böttö. South Channel. ODAS buoy.
2025:1068/19264(T)	6/2/2025	6/2/2026	Göteborg. Frihamnen. Bridge 'Hisingsbron'. Reduced beam and draught.
2023:953/17494(T)	3/6/2023	Until further notice	Port of Gothenburg. Arendal. Reduced depth.

Skagerrak

Notice	Start	Stop	Title
2025:1087/19611(T)	10/1/2025	8/30/2026	Uddevalla. Byfjorden. Frölandshamnen. Work with quay.
2025:1086/19561(T)	9/29/2025	12/31/2025	Fjällbacka. Valön. Fläskön. Dyngön. Works with pipelines.
2025:1077/19441(T)	7/21/2025	Until further notice	Orust. Tjörn. Stigfjorden. Floating obstacle. Danger to navigation.
2025:1068/19295(T)	6/23/2025	6/1/2026	W of light Väderöbod. Measuring equipment.

Lake Vänern and Trollhätte Canal

Notice	Start	Stop	Title
2025:1095/19696(T)	12/15/2025	3/31/2026	Nordre Älv. Cable ferry crossing at Kornhall. Fairway closed.
2025:1089/19637(T)	10/13/2025	1/31/2026	Vänern. Kristinehamn. NE of Lakholmen. Varnumsviken Brattsand. Works.

Inshore waters

Notice	Start	Stop	Title
2025:1080/19415(T)	8/25/2025	2/22/2026	Linköping. Roxen. Pipeworks.
2023:965/16949(T)	5/31/2023	Until further notice	Lake Roxen. N of Linköping. Ekängen. Buoyage unreliable.

not area bound

Notice	Start	Stop	Title
2025:1098/19790(T)	12/24/2025	12/24/2025	Information from Swedish Maritime Administration. No published NtM booklet on december 25, 2025.
2025:1095/19745(T)	11/21/2025	Until further notice	General information to seafarers during winter conditions.
2025:1095/19746(T)	11/21/2025	Until further notice	Wintertime recommendations for maritime traffic for the prevention of ice-skating accidents etc.
2025:1074/19412(T)	7/2/2025	Until further notice	Reports of disturbances in satellite positioning systems.