b73e7d15-3c58-4d62-b33c-153e34d4957b Stephane Lessard Stephane Lessard Stéphane Lessard Canadian Coast Guard Canadian Coast Guard Garde côtière canadienne Operational Systems Engineer Operational Systems Engineer Ingénieur Systèmes opérationnels 418-649-6351 stephane.lessard@dfo-mpo.gc.ca stephane.lessard@dfo-mpo.gc.ca 2025-07-07T13:26:20 ISO 19115:2003/19139 1.0 WGS 1984 WGS 1984 Water Level Forecasts Bulletin (Current Bulletin) Water Level Forecasts Bulletin (Current Bulletin) Bulletin de prévisions des niveaux d'eau (Bulletin Courant) 2017-02-22 2025-07-07 Forecasts for the expected lowest water levels at the indicated stations in the St. Lawrence ship channel. Forecasts for the expected lowest water levels at the indicated stations in the St. Lawrence ship channel. Prévisions portant sur les niveaux d’eau minimums attendus aux secteurs mentionnés dans le chenal de navigation du Saint-Laurent. Samir Gharbi Samir Gharbi Samir Gharbi Canadian Coast Guard Canadian Coast Guard Garde côtière canadienne Waterways acting Manager, Canadian Coast Guard Programs Waterways acting Manager, Canadian Coast Guard Programs Gestionnaire intérimaire des Voies navigables, Programmes Garde côtière canadienne 418-648-2497 / 418-454-5230 418-648-6690 101 Champlain Boulevard 101 Champlain Boulevard 101 boul. Champlain Québec G1K 7Y7 DFO.CCGWaterLevelSL-GCCNiveauxEauSL.MPO@dfo-mpo.gc.ca DFO.CCGWaterLevelSL-GCCNiveauxEauSL.MPO@dfo-mpo.gc.ca DFO.CCGWaterLevelSL-GCCNiveauxEauSL.MPO@dfo-mpo.gc.ca https://navigation-electronique.canada.ca WWW:LINK-1.0-http--partners Canadian Coast Guard - e-Navigation Portal Canadian Coast Guard - e-Navigation Portal Garde côtière canadienne - Portail d'information maritime null://null:null/geonetwork/srv/api/records/b73e7d15-3c58-4d62-b33c-153e34d4957b/attachments/ thumbnail thumbnail null://null:null/geonetwork/srv/api/records/b73e7d15-3c58-4d62-b33c-153e34d4957b/attachments/ large_thumbnail large_thumbnail (CCG specific) St. Lawrence River and Gulf (CCG specific) St. Lawrence River and Gulf (CCG specific) St. Lawrence River and Gulf (CCG specific) St. Lawrence Seaway (CCG specific) St. Lawrence Seaway (CCG specific) St. Lawrence Seaway Continents, countries, sea regions of the world. Continents, countries, sea regions of the world. 2015-07-17 geonetwork.thesaurus.external.place.regions 50000 tidesWaterLevelsAndCurrents St. Lawrence Seaway St. Lawrence Seaway Voie maritime du Saint-Laurent -76.40 -73.50 44.10 45.50 St. Lawrence River and Gulf St. Lawrence River and Gulf Fleuve et golfe du Saint-Laurent -73.51 -61.00 45.60 50.50 1. These forecasts give the expected minimum water levels above chart datum at the indicated locations and at the specified times to assist commercial shipping in short term planning of operations (1 to 4 weeks). 2. This bulletin is produced by the Hydraulic Engineering sector, CCG, Headquaters on Thursday of each week. 3. The Canadian Coast Guard provides no guaranties on water levels and assumes no responsibilities relative to damages or losses resulting from the use of this information. 4. It should be clearly understood that this information is a forecast of water levels which may be altered by short term hydrometeorological factors. The vessel master or officer-in-charge has the ultimate responsibility for the vessel safety at all times. 5. The maritime industry has the responsibility of adding a sufficient safety margin to these forecasts. Hydrodynamic phenomena can influence water levels observed at gauging stations used by MCTS, especially during low water periods. 6. Ice jams management could induce important variations in the water levels. The water level forecasts within this bulletin do not take into account the potential variations resulting from ice jam management. https://e-navigation.canada.ca/topics/water-levels/central/levels 1. These forecasts give the expected minimum water levels above chart datum at the indicated locations and at the specified times to assist commercial shipping in short term planning of operations (1 to 4 weeks). 2. This bulletin is produced by the Hydraulic Engineering sector, CCG, Headquaters on Thursday of each week. 3. The Canadian Coast Guard provides no guaranties on water levels and assumes no responsibilities relative to damages or losses resulting from the use of this information. 4. It should be clearly understood that this information is a forecast of water levels which may be altered by short term hydrometeorological factors. The vessel master or officer-in-charge has the ultimate responsibility for the vessel safety at all times. 5. The maritime industry has the responsibility of adding a sufficient safety margin to these forecasts. Hydrodynamic phenomena can influence water levels observed at gauging stations used by MCTS, especially during low water periods. 6. Ice jams management could induce important variations in the water levels. The water level forecasts within this bulletin do not take into account the potential variations resulting from ice jam management. https://e-navigation.canada.ca/topics/water-levels/central/levels 1. Les prévisions montrent les niveaux d’eau minimums attendus par rapport au zéro des cartes aux endroits indiqués et pour les dates spécifiées en vue d’aider les navigateurs commerciaux à planifier leurs activités à court terme (1 à 4 semaines). 2. Ce bulletin, diffusé le jeudi de chaque semaine, est produit par le secteur génie hydraulique de la Garde côtière canadienne, Administration centrale. 3. La Garde côtière canadienne ne fournit aucune garantie sur ces niveaux d’eau attendus et n’assume aucune responsabilité pour pertes ou dommages encourues suite à l’usage de cette information. 4. Il est important de noter que des facteurs hydro-météorologiques à court terme peuvent influencer les niveaux d’eau prédits. Le maître du navire ou l’officier de service est responsable de la sécurité du navire en tout temps. 5. Il est de la responsabilité de l'industrie maritime de se garder une marge de sécurité suffisante par rapport à ces prévisions. Particulièrement en période d’étiage (bas niveau d'eau), des phénomènes hydrodynamiques peuvent influencer les niveaux d’eau observés aux stations de jaugeage utilisées par les SCTM. 6. La gestion d'embâcles de glace pourrait induire d’importantes variations des niveaux d’eau. Les niveaux d’eau attendus et diffusés dans le présent bulletin ne tiennent pas compte des variations potentielles découlant de la gestion de ces embâcles. https://navigation-electronique.canada.ca/topics/niveaux-deau/central/niveaux https://e-navigation.canada.ca/geoserver/wm/last_bulletin_split_rows/wfs?service=WFS&request=GetCapabilities OGC:WFS WFS - GetCapabilities WFS - GetCapabilities WFS - GetCapabilities WFS - GetCapabilities WFS - GetCapabilities WFS - GetCapabilities https://e-navigation.canada.ca/geoserver/wfs?service=WFS&version=1.1.0&request=GetFeature&typename=wm:last_bulletin_split_rows&outputFormat=csv&srsName=EPSG:4326 OGC:WFS WFS - CSV WFS - CSV WFS - CSV WFS - CSV WFS - CSV WFS - CSV https://e-navigation.canada.ca/geoserver/wfs?service=WFS&version=1.1.0&request=GetFeature&typename=wm:last_bulletin_split_rows&outputFormat=GML2&srsName=EPSG:4326 OGC:WFS WFS - GML2 WFS - GML2 WFS - GML2 WFS - GML2 WFS - GML2 WFS - GML2 https://e-navigation.canada.ca/geoserver/wfs?service=WFS&version=1.1.0&request=GetFeature&typename=wm:last_bulletin_split_rows&outputFormat=GML3&srsName=EPSG:4326 OGC:WFS WFS - GML3 WFS - GML3 WFS - GML3 WFS - GML3 WFS - GML3 WFS - GML3 https://e-navigation.canada.ca/geoserver/wfs?service=WFS&version=1.1.0&request=GetFeature&typename=wm:last_bulletin_split_rows&outputFormat=application%2Fjson&srsName=EPSG:4326 OGC:WFS WFS - JSON WFS - JSON WFS - JSON WFS - JSON WFS - JSON WFS - JSON https://e-navigation.canada.ca/geoserver/wfs?service=WFS&version=1.1.0&request=GetFeature&typename=wm:last_bulletin_split_rows&outputFormat=text%2Fjavascript&srsName=EPSG:4326 OGC:WFS WFS - JSONP WFS - JSONP WFS - JSONP WFS - JSONP WFS - JSONP WFS - JSONP https://e-navigation.canada.ca/geoserver/wfs?service=WFS&version=1.1.0&request=GetFeature&typename=wm:last_bulletin_split_rows&outputFormat=shape-zip&srsName=EPSG:4326 OGC:WFS WFS - ShapeFile (zipped) WFS - ShapeFile (zipped) WFS - ShapeFile (zipped) WFS - ShapeFile (zipped) WFS - ShapeFile (zipped) WFS - ShapeFile (zipped) https://e-navigation.canada.ca/geoserver/wm/last_bulletin_split_rows/wms?service=WMS&request=GetCapabilities OGC:WFS WMS - GetCapabilities WMS - GetCapabilities WMS - GetCapabilities WMS - GetCapabilities WMS - GetCapabilities WMS - GetCapabilities https://e-navigation.canada.ca/geoserver/wms/reflect?layers=wm:last_bulletin_split_rows&format=application%2Fatom%2Bxml&srsName=EPSG:4326&STYLES= OGC:WFS WMS - AtomPub WMS - AtomPub WMS - AtomPub WMS - AtomPub WMS - AtomPub WMS - AtomPub https://e-navigation.canada.ca/geoserver/wms/reflect?layers=wm:last_bulletin_split_rows&format=application%2Frss%2Bxml&srsName=EPSG:4326&STYLES= OGC:WFS WMS - GeoRSS WMS - GeoRSS WMS - GeoRSS WMS - GeoRSS WMS - GeoRSS WMS - GeoRSS https://e-navigation.canada.ca/geoserver/wms/reflect?layers=wm:last_bulletin_split_rows&format=kml&srsName=EPSG:4326&STYLES= OGC:WFS WMS - KML WMS - KML WMS - KML WMS - KML WMS - KML WMS - KML https://e-navigation.canada.ca/geoserver/wms/reflect?layers=wm:last_bulletin_split_rows&format=kmz&srsName=EPSG:4326&STYLES= OGC:WFS WMS - KMZ WMS - KMZ WMS - KMZ WMS - KMZ WMS - KMZ WMS - KMZ