Cruise line
Vista Travel AS
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 Vista Travel AS, and no cruise line uses a Waterlogged clear-line operationally.
Which ship
Waterlogged class clear-line, using an assumed class draught of 1.62 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 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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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
100 cm falling 12 centimetres over 72 hours falling 12 cm over 72 hours
501 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
20 cm falling 17 centimetres over 72 hours falling 17 cm over 72 hours
80 cm below the 100 cm calibrated judgment line. Waterlogged class clear-line, using an assumed class draught of 1.62 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)
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Lower Danube
Notice-governedGoverned by the waterway authority's notices. Lock availability, dredging, agreed channel depths and temporary restrictions decide this stretch, not a drought reading.
Budapest (Danube-km 1646) – Iron Gates – Giurgiu/Rousse – the delta
Novo Selo Danube
-67 cm falling 6 centimetres over 72 hours falling 6 cm over 72 hours
No official high-water mark is transcribed for this gauge from a source we have read, so none is shown. Read the authority's notices.
Lom Danube
-17 cm falling 6 centimetres over 72 hours falling 6 cm over 72 hours
No official high-water mark is transcribed for this gauge from a source we have read, so none is shown. Read the authority's notices.
Oryahovo Danube
-98 cm falling 5 centimetres over 72 hours falling 5 cm over 72 hours
No official high-water mark is transcribed for this gauge from a source we have read, so none is shown. Read the authority's notices.
Nikopol Danube
-10 cm falling 4 centimetres over 72 hours falling 4 cm over 72 hours
No official high-water mark is transcribed for this gauge from a source we have read, so none is shown. Read the authority's notices.
Svishtov Danube
-58 cm falling 4 centimetres over 72 hours falling 4 cm over 72 hours
No official high-water mark is transcribed for this gauge from a source we have read, so none is shown. Read the authority's notices.
Ruse Danube
-107 cm falling 3 centimetres over 72 hours falling 3 cm over 72 hours
No official high-water mark is transcribed for this gauge from a source we have read, so none is shown. Read the authority's notices.
Silistra Danube
-95 cm rising 2 centimetres over 72 hours rising 2 cm over 72 hours
No official high-water mark is transcribed for this gauge from a source we have read, so none is shown. Read the authority's notices.
The shallow crossings migrate, so the published fairway soundings and notices are closer to the constraint than any single gauge.
Official sources and forecasts for Lower Danube
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APPD — Bulgarian Danube levels, soundings and restrictions
Daily Bulgarian Danube levels and the current fairway soundings at the shallow crossings.
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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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APPD — Bulgarian Danube levels, soundings and restrictions
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.