RIVER LEVELS & FLOOD WARNINGS: Not all the major rivers in the UK are particularly long. But, the River Severn is the longest waterway.
River Severn stretches 220 miles (354 km) from its source in the Welsh mountains. It finally flows into the Atlantic Ocean near to Bristol.
River Levels Warning: England and Wales
It is the role of the Environment Agency to forecast any risk of flooding across England and Wales. The Agency also gives out stream warnings and informs the public of current river conditions.
Strong Stream Warning and Advice
You can get advice about strong streams or check the most current strong stream warnings. Check the River Thames flood warnings in London by telephoning the 24 hour hotline:
Choose option 1 after your call gets answered and then enter one of the the appropriate quick dial codes
UK Rivers Map: River Thames
- River conditions and strong stream warnings: 011131
- Working on the river and lock closures: 011132
- Events on the river which affect boating: 011133
Other Rivers in Great Britain
- River Nene: 032112
- Great Ouse: 033211
- Ancholme: 031212
Note: Sign up to the free strong stream advice messaging system for other waterways. They include Rivers Nene, Great Ouse, and Ancholme.
Strong Stream Advice Messaging System
Telephone: 020 3025 5068
Checking Tide Forecasts
Seven day tide predictions are available for big rivers in England and Wales with extra information about:
- Live and predicted tides on the tidal Thames.
- Tide predictions at Rye Harbour.
- Tide predictions for Allington Lock on the River Medway.
River Thames Flood Warnings Defence
Without doubt, the River Thames is among the most significant and important waterways in the United Kingdom.
The Thames is the deepest river in Britain and stretches for 215 miles (346 km) before it finally flows into the North Sea.
The Environment Agency manages the River Thames in London. Their services allow checks on non-tidal sections for the most up-to-date conditions. It includes status alerts for any river closures and restrictions with information on lock closures.
You can get advice about emergency rendezvous points between Teddington and Lechlade. The Port of London Authority also manages the tidal Thames which means you can get current works and closures on these sections of the river.
Note: Check for further information on the river closures, restrictions, and lock closures affecting boaters on the River Thames.
Cruising The River Thames
Always check navigation bylaws and registration bylaws before setting out. Get vital information about bridges, locks, and other facilities for boaters. Further guides are available for boating on the Thames or its connecting waterways for cruising up the rivers.
Anglian Waterways have information on conditions, closures and restrictions. Always check the reports and their recreational bylaws before setting out. You can also download the latest information about the facilities and safety for these rivers:
- River Great Ouse
- Black Sluice
- River Nene
- River Ancholme
- River Stour
- River Welland and Glen
The River Medway
The River Medway in England is 70 miles long (113 km). Check the current conditions, relevant restrictions, and the latest closures. Their reports get updated during business working hours each week day.
Boaters can telephone Allington Lock if the request is outside of business hours.
Telephone: 01622 752864
Elsewhere in England, Scotland, and Northern Ireland
Further information is openly available for river and canal conditions for:
- River and canal closure information on Canal and River Trust waterways in England.
- Canal works and closures on Scottish Canals.
- River and canal restrictions and closures on Waterways Ireland.