Cruise line
Trafalgar River Cruises
Current water on the corridors this line's catalogue uses, compared with the level Waterlogged calculates a ship of this size wants.
Waterlogged is not affiliated with Trafalgar River Cruises, and no cruise line uses a Waterlogged clear-line operationally.
Which ship
Waterlogged class clear-line, using an assumed class draught of 1.55 m. Our catalogue holds no hull for this line's routes, so this is a class assumption — not a fact about your ship, and not a figure the operator has published for the vessel you will be on.
- A Trafalgar river ship — 1.55 m (class entry)
- A Trafalgar river ship — 1.55 m (class entry)
- A Trafalgar river ship — 1.6 m (class entry)
A Waterlogged clear-line is our own arithmetic: the gauge reading at which the published reference depth, minus the ship's draught and a fixed safety allowance, still leaves a comfortable margin. It is not an operator's decision rule and no cruise line uses it.
The water today
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Middle Rhine gorge
Free-flowingThe river runs free here, so the level is the constraint: this is where a drought actually binds a hull.
Bingen (Rhine-km 528) – Koblenz (Rhine-km 592)
Kaub Rhine
33 cm falling 14 centimetres over 72 hours falling 14 cm over 72 hours
low on mean low/high water (MNW/MHW) · normal on navigational reference levels (NSW/HSW) — the publisher's own classification of its own reading.
55 cm below the 88 cm clear-line. Waterlogged class clear-line, using an assumed class draught of 1.55 m. Derived from the published reference pair on file for this gauge.
Official sources and forecasts for Middle Rhine gorge
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Official German federal 14-day water-level forecast — opens BfG
The German federal hydrology institute's own daily water-level forecast, fourteen days ahead, with BfG's own spread and caveats. It covers seven Rhine gauges — Oestrich, Kaub, Koblenz, Cologne, Düsseldorf, Duisburg-Ruhrort and Emmerich — and no other river.
This product is CC BY 4.0. Waterlogged shows forecast values with the exact credit “Bundesanstalt für Gewässerkunde (BfG)” and names the forecast's own issue date and time from the CSV header. The value never feeds Waterlogged's scoring.
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Official German federal six-week outlook (weekly means) — opens BfG
BfG publishes this as a trend statement in weekly means, six weeks ahead, not as day-by-day cruise guidance. It reaches Maxau, Kaub and Cologne on the Rhine, Pfelling and Hofkirchen on the Danube, and Dresden on the Elbe. Open the official product to read BfG's own figures and caveats.
This product is CC BY 4.0. Waterlogged may show the weekly means with the exact credit “Bundesanstalt für Gewässerkunde (BfG)” and the forecast's own issue date and time from the CSV header. We do not turn weekly means into per-day levels or passenger chances.
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ELWIS — German federal waterways notices and navigation information
The official notices channel for commercial navigation on the German waterways: closures, lock works and high-water restrictions in the authority's own wording. Its gauge pages also show the forecast for that gauge where a German authority publishes one, and leave the forecast column empty where none exists.
ELWIS content is OpenData. Commercial reuse is allowed only when the content is unchanged and credited “www.elwis.de”; ELWIS's own terms also permit links to its pages, as long as the source and the address “www.elwis.de” are named. Waterlogged may show a short quote word for word with that credit and a link. A paraphrase counts as an alteration, so we never rewrite notice content in our own words.
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Official German federal 14-day water-level forecast — opens BfG
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Lower Rhine
Free-flowingThe river runs free here, so the level is the constraint: this is where a drought actually binds a hull.
Emmerich (Rhine-km 852) – Cologne (Rhine-km 688)
Cologne Rhine
79 cm falling 21 centimetres over 72 hours falling 21 cm over 72 hours
low on mean low/high water (MNW/MHW) · normal on navigational reference levels (NSW/HSW) — the publisher's own classification of its own reading.
10 cm below the 89 cm clear-line. Waterlogged class clear-line, using an assumed class draught of 1.55 m. Derived from the published reference pair on file for this gauge.
Official sources and forecasts for Lower Rhine
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Official German federal 14-day water-level forecast — opens BfG
The German federal hydrology institute's own daily water-level forecast, fourteen days ahead, with BfG's own spread and caveats. It covers seven Rhine gauges — Oestrich, Kaub, Koblenz, Cologne, Düsseldorf, Duisburg-Ruhrort and Emmerich — and no other river.
This product is CC BY 4.0. Waterlogged shows forecast values with the exact credit “Bundesanstalt für Gewässerkunde (BfG)” and names the forecast's own issue date and time from the CSV header. The value never feeds Waterlogged's scoring.
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Official German federal six-week outlook (weekly means) — opens BfG
BfG publishes this as a trend statement in weekly means, six weeks ahead, not as day-by-day cruise guidance. It reaches Maxau, Kaub and Cologne on the Rhine, Pfelling and Hofkirchen on the Danube, and Dresden on the Elbe. Open the official product to read BfG's own figures and caveats.
This product is CC BY 4.0. Waterlogged may show the weekly means with the exact credit “Bundesanstalt für Gewässerkunde (BfG)” and the forecast's own issue date and time from the CSV header. We do not turn weekly means into per-day levels or passenger chances.
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ELWIS — German federal waterways notices and navigation information
The official notices channel for commercial navigation on the German waterways: closures, lock works and high-water restrictions in the authority's own wording. Its gauge pages also show the forecast for that gauge where a German authority publishes one, and leave the forecast column empty where none exists.
ELWIS content is OpenData. Commercial reuse is allowed only when the content is unchanged and credited “www.elwis.de”; ELWIS's own terms also permit links to its pages, as long as the source and the address “www.elwis.de” are named. Waterlogged may show a short quote word for word with that credit and a link. A paraphrase counts as an alteration, so we never rewrite notice content in our own words.
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Official German federal 14-day water-level forecast — opens BfG
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Upper Rhine
Held by locksLevel held by locks. Weirs keep a working depth through a drought, so the risk on this stretch is high water and lock operations — not low water.
Mainz (Rhine-km 498) – Basel (Rhine-km 167)
Maxau Rhine
335 cm rising 6 centimetres over 72 hours rising 6 cm over 72 hours
low on mean low/high water (MNW/MHW) · normal on navigational reference levels (NSW/HSW) — the publisher's own classification of its own reading.
285 cm below the 620 cm first high-water mark (speed and wash limits, and the room under the bridges starts to run out).
The barrage chain holds the depth in a drought — but the locks still close at high water. Drought-proof is not flood-proof.
Official sources and forecasts for Upper Rhine
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Maxau's own forecast page — opens the Baden-Württemberg flood forecast centre
Baden-Württemberg's flood forecast centre publishes the forecast for Maxau, not BfG. Open the Vorhersage tab: a forecast line runs about two days ahead in centimetres, and after that the chart switches to a wider trend estimate with a shaded band and a no-rain scenario, out to roughly two weeks. Read the band, not the middle of it.
Waterlogged does not reproduce or interpret the values on this page. LUBW holds the copyright and asks to be consulted before its figures are copied or shown again elsewhere, so this product is linked and never mirrored.
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Official German federal six-week outlook (weekly means) — opens BfG
BfG publishes this as a trend statement in weekly means, six weeks ahead, not as day-by-day cruise guidance. It reaches Maxau, Kaub and Cologne on the Rhine, Pfelling and Hofkirchen on the Danube, and Dresden on the Elbe. Open the official product to read BfG's own figures and caveats.
This product is CC BY 4.0. Waterlogged may show the weekly means with the exact credit “Bundesanstalt für Gewässerkunde (BfG)” and the forecast's own issue date and time from the CSV header. We do not turn weekly means into per-day levels or passenger chances.
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ELWIS — German federal waterways notices and navigation information
The official notices channel for commercial navigation on the German waterways: closures, lock works and high-water restrictions in the authority's own wording. Its gauge pages also show the forecast for that gauge where a German authority publishes one, and leave the forecast column empty where none exists.
ELWIS content is OpenData. Commercial reuse is allowed only when the content is unchanged and credited “www.elwis.de”; ELWIS's own terms also permit links to its pages, as long as the source and the address “www.elwis.de” are named. Waterlogged may show a short quote word for word with that credit and a link. A paraphrase counts as an alteration, so we never rewrite notice content in our own words.
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Maxau's own forecast page — opens the Baden-Württemberg flood forecast centre
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Straubing–Vilshofen free stretch
Free-flowingThe river runs free here, so the level is the constraint: this is where a drought actually binds a hull.
Straubing (Danube-km 2321) – Vilshofen (Danube-km 2249)
Pfelling Danube
227 cm rising 5 centimetres over 72 hours rising 5 cm over 72 hours
low on mean low/high water (MNW/MHW) · normal on navigational reference levels (NSW/HSW) — the publisher's own classification of its own reading.
63 cm below the 290 cm clear-line. Waterlogged class clear-line, using an assumed class draught of 1.55 m. Derived from the published reference pair on file for this gauge.
Hofkirchen Danube
153 cm steady over 72 hours steady over 72 hours
low on mean low/high water (MNW/MHW) · normal on navigational reference levels (NSW/HSW) — the publisher's own classification of its own reading.
54 cm below the 207 cm clear-line. Waterlogged class clear-line, using an assumed class draught of 1.55 m. Derived from the published reference pair on file for this gauge.
Official sources and forecasts for Straubing–Vilshofen free stretch
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Bavarian Danube gauges and their forecasts — opens HND Bayern
Bavaria's own gauge list for the Danube down to Passau. Every gauge page shows the measured level, and the gauges Bavaria forecasts add a twelve-hour forecast and a two-day trend.
Waterlogged does not reproduce or interpret the values on this page. Bavaria's flood service asserts its own copyright over this presentation, so its forward figures are linked and never mirrored.
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Official German federal six-week outlook (weekly means) — opens BfG
BfG publishes this as a trend statement in weekly means, six weeks ahead, not as day-by-day cruise guidance. It reaches Maxau, Kaub and Cologne on the Rhine, Pfelling and Hofkirchen on the Danube, and Dresden on the Elbe. Open the official product to read BfG's own figures and caveats.
This product is CC BY 4.0. Waterlogged may show the weekly means with the exact credit “Bundesanstalt für Gewässerkunde (BfG)” and the forecast's own issue date and time from the CSV header. We do not turn weekly means into per-day levels or passenger chances.
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ELWIS — German federal waterways notices and navigation information
The official notices channel for commercial navigation on the German waterways: closures, lock works and high-water restrictions in the authority's own wording. Its gauge pages also show the forecast for that gauge where a German authority publishes one, and leave the forecast column empty where none exists.
ELWIS content is OpenData. Commercial reuse is allowed only when the content is unchanged and credited “www.elwis.de”; ELWIS's own terms also permit links to its pages, as long as the source and the address “www.elwis.de” are named. Waterlogged may show a short quote word for word with that credit and a link. A paraphrase counts as an alteration, so we never rewrite notice content in our own words.
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Bavarian Danube gauges and their forecasts — opens HND Bayern
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Austrian Danube
Held by locksLevel held by locks. Weirs keep a working depth through a drought, so the risk on this stretch is high water and lock operations — not low water.
Passau (Danube-km 2226) – Vienna (Danube-km 1929)
Kienstock Danube
109 cm falling 11 centimetres over 72 hours falling 11 cm over 72 hours
492 cm below the 601 cm first high-water mark (speed and wash limits, and the room under the bridges starts to run out).
Impounded through the Austrian chain. The Wachau inside it genuinely runs free, and Kienstock sits in it, but no maintained-depth model exists for that gauge.
Official sources and forecasts for Austrian Danube
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viadonau / DoRIS — Kienstock gauge page with its forward view (English)
Austria's own page for the Wachau reference gauge. Its graph draws the measured line as “Pegel” and the forward line as “Vorschau”, running about five days ahead. Austria notes that Kienstock forecasts are meant for low-water situations. The same site holds the Austrian fairway information and river notices.
viadonau allows reuse of its Kienstock values with the credit “Quelle: viadonau”, and that credit rides on every Kienstock figure we show. Waterlogged still publishes no forward level of its own: the forward numbers on our Kienstock page are EuRIS's, under EuRIS's name, and this page is viadonau's own fuller version of the same gauge.
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viadonau / DoRIS — Kienstock gauge page with its forward view (English)
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Vienna–Budapest Danube
Free-flowingThe river runs free here, so the level is the constraint: this is where a drought actually binds a hull.
Vienna (Danube-km 1929) – Budapest (Danube-km 1646)
Budapest Danube
22 cm falling 14 centimetres over 72 hours falling 14 cm over 72 hours
78 cm below the 100 cm calibrated judgment line. Waterlogged class clear-line, using an assumed class draught of 1.55 m. A hand-set band, not a measured fairway depth and not worked out from any ship's draught. It is our judgment about this stretch and it is labelled as one.
Official sources and forecasts for Vienna–Budapest Danube
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hydroinfo.hu — Hungarian hydrological service (official Danube levels and notices)
Hungary's official hydrological pages for the Danube, including Budapest.
Waterlogged does not reproduce or interpret the values on this page. Waterlogged has received permission from Országos Vízügyi Főigazgatóság (OVF) / General Directorate of Water Management to publish water-level data provided the content accurately reflects reality and the source is credited. This page itself stays a link: we publish the Budapest history we hold under that permission, not a copy of the publisher's own pages.
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vizugy.hu — Hungarian water directorate live gauge pages
The Hungarian directorate's own live level pages, including the Budapest gauge.
Waterlogged does not reproduce or interpret the values on this page. Waterlogged has received permission from Országos Vízügyi Főigazgatóság (OVF) / General Directorate of Water Management to publish water-level data provided the content accurately reflects reality and the source is credited. The Budapest readings we show travel through EuRIS with OVF's credit beside them; nothing is copied from these pages.
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EuRIS — European River Information Services portal
The European portal that distributes the current Budapest, Kienstock and Bulgarian lower-Danube readings Waterlogged shows, naming OVF, viadonau and ИАППД as the originators.
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hydroinfo.hu — Hungarian hydrological service (official Danube levels and notices)
Corridors on this line's routes that we do not read
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Dutch & Belgian waterways Notice-governed
Governed by the waterway authority's notices. Lock availability, dredging, agreed channel depths and temporary restrictions decide this stretch, not a drought reading.
One panel cannot describe this: the Waal runs free, the connecting canals are managed, and the Scheldt is tidal. Until the reach is split, treat it as notice-governed.
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Rijkswaterstaat Waterinfo — Dutch water levels
Live levels on the Waal, Rhine branches and the Dutch canal and delta network.
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Rijkswaterstaat Waterinfo — Dutch water levels
Rain in the next 14 days
Rhine above Kaub — representative catchment precipitation.
3 days: 1.2 mm · 7 days: 15.3 mm · 14 days: 15.3 mm — forecast precipitation.
Rain forecast by Open-Meteo (commercial licence), model icon_seamless · fetched 6 September 2026 at 19:22 UTC · covering 14 days, 6 September to 19 September.
Weather data by Open-Meteo (commercial licence) · Representative catchment precipitation total from 8 weighted sampling points; a point sample, not an areal mean.
Rain may slow a fall or create a rise after losses and routing. Waterlogged does not convert this forecast into gauge centimetres or a cruise-disruption probability.
Read a rain forecast at the source
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Deutscher Wetterdienst — official German weather forecasts
Germany's national weather service forecast for the Rhine, Main, Moselle and Danube catchments.
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yr.no — free European rain forecasts (MET Norway / NRK)
A free public forecast covering the same catchments, if you want rain amounts today.
Linking is not endorsement. The publisher controls its own page, its own values and its own terms. Cruise-line names identify the operator's own documents and remain the property of their owners.