River level River Thames at Bell Weir (downstream data)

Flooding is possible - Be prepared

The latest information indicates flooding is possible - Take action.

Check for flood warnings in this area

Latest recorded level 3.90m at 1:00pm Friday 17 January 2020.

View upstream data for this station

Why are there 2 sets of data for this station?

Some monitoring stations are located near to a man-made structure which affects the river's flow characteristics, for example a weir, or lock. For these stations, we provide river levels from both the upstream and downstream sides of the structure.

River levels at this location in the last 5 days

Now
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• Measured level
• When the water level reaches 3.73m here, minor flooding is possible in this area
• Highest recorded level. Hide
• Show highest recorded level

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Observed data

DateTime	Value	Error
2020-01-17T13:00Z	3.895	false
2020-01-17T13:00Z	3.895	false
2020-01-17T12:45Z	3.898	false
2020-01-17T12:45Z	3.898	false
2020-01-17T12:30Z	3.895	false
2020-01-17T12:30Z	3.895	false
2020-01-17T12:15Z	3.894	false
2020-01-17T12:15Z	3.894	false
2020-01-17T12:00Z	3.873	false
2020-01-17T12:00Z	3.873	false
2020-01-17T11:45Z	3.873	false
2020-01-17T11:45Z	3.873	false
2020-01-17T11:30Z	3.87	false
2020-01-17T11:30Z	3.87	false
2020-01-17T11:15Z	3.868	false
2020-01-17T11:15Z	3.868	false
2020-01-17T11:00Z	3.866	false
2020-01-17T11:00Z	3.866	false
2020-01-17T10:45Z	3.869	false
2020-01-17T10:45Z	3.869	false
2020-01-17T10:30Z	3.864	false
2020-01-17T10:30Z	3.864	false
2020-01-17T10:15Z	3.866	false
2020-01-17T10:15Z	3.866	false
2020-01-17T10:00Z	3.862	false
2020-01-17T10:00Z	3.862	false
2020-01-17T09:45Z	3.839	false
2020-01-17T09:45Z	3.839	false
2020-01-17T09:30Z	3.811	false
2020-01-17T09:30Z	3.811	false
2020-01-17T09:15Z	3.803	false
2020-01-17T09:15Z	3.803	false
2020-01-17T09:00Z	3.793	false
2020-01-17T09:00Z	3.793	false
2020-01-17T08:45Z	3.793	false
2020-01-17T08:45Z	3.793	false
2020-01-17T08:30Z	3.783	false
2020-01-17T08:30Z	3.783	false
2020-01-17T08:15Z	3.783	false
2020-01-17T08:15Z	3.783	false
2020-01-17T08:00Z	3.79	false
2020-01-17T08:00Z	3.79	false
2020-01-17T07:45Z	3.774	false
2020-01-17T07:45Z	3.774	false
2020-01-17T07:30Z	3.753	false
2020-01-17T07:30Z	3.753	false
2020-01-17T07:15Z	3.75	false
2020-01-17T07:15Z	3.75	false
2020-01-17T07:00Z	3.752	false
2020-01-17T07:00Z	3.752	false
2020-01-17T06:45Z	3.745	false
2020-01-17T06:45Z	3.745	false
2020-01-17T06:30Z	3.74	false
2020-01-17T06:30Z	3.74	false
2020-01-17T06:15Z	3.731	false
2020-01-17T06:15Z	3.731	false
2020-01-17T06:00Z	3.731	false
2020-01-17T06:00Z	3.731	false
2020-01-17T05:45Z	3.727	false
2020-01-17T05:45Z	3.727	false
2020-01-17T05:30Z	3.723	false
2020-01-17T05:30Z	3.723	false
2020-01-17T05:15Z	3.714	false
2020-01-17T05:15Z	3.714	false
2020-01-17T05:00Z	3.714	false
2020-01-17T05:00Z	3.714	false
2020-01-17T04:45Z	3.711	false
2020-01-17T04:45Z	3.711	false
2020-01-17T04:30Z	3.704	false
2020-01-17T04:30Z	3.704	false
2020-01-17T04:15Z	3.699	false
2020-01-17T04:15Z	3.699	false
2020-01-17T04:00Z	3.698	false
2020-01-17T04:00Z	3.698	false
2020-01-17T03:45Z	3.695	false
2020-01-17T03:45Z	3.695	false
2020-01-17T03:30Z	3.695	false
2020-01-17T03:30Z	3.695	false
2020-01-17T03:15Z	3.691	false
2020-01-17T03:15Z	3.691	false
2020-01-17T03:00Z	3.692	false
2020-01-17T03:00Z	3.692	false
2020-01-17T02:45Z	3.685	false
2020-01-17T02:45Z	3.685	false
2020-01-17T02:30Z	3.684	false
2020-01-17T02:30Z	3.684	false
2020-01-17T02:15Z	3.689	false
2020-01-17T02:15Z	3.689	false
2020-01-17T02:00Z	3.68	false
2020-01-17T02:00Z	3.68	false
2020-01-17T01:45Z	3.676	false
2020-01-17T01:45Z	3.676	false
2020-01-17T01:30Z	3.677	false
2020-01-17T01:30Z	3.677	false
2020-01-17T01:15Z	3.671	false
2020-01-17T01:15Z	3.671	false
2020-01-17T01:00Z	3.673	false
2020-01-17T01:00Z	3.673	false
2020-01-17T00:45Z	3.678	false
2020-01-17T00:45Z	3.678	false
2020-01-17T00:30Z	3.669	false
2020-01-17T00:30Z	3.669	false
2020-01-17T00:15Z	3.675	false
2020-01-17T00:15Z	3.675	false
2020-01-17T00:00Z	3.67	false
2020-01-17T00:00Z	3.67	false
2020-01-16T23:45Z	3.675	false
2020-01-16T23:45Z	3.675	false
2020-01-16T23:30Z	3.671	false
2020-01-16T23:30Z	3.671	false
2020-01-16T23:15Z	3.671	false
2020-01-16T23:15Z	3.671	false
2020-01-16T23:00Z	3.666	false
2020-01-16T23:00Z	3.666	false
2020-01-16T22:45Z	3.662	false
2020-01-16T22:45Z	3.662	false
2020-01-16T22:30Z	3.667	false
2020-01-16T22:30Z	3.667	false
2020-01-16T22:15Z	3.664	false
2020-01-16T22:15Z	3.664	false
2020-01-16T22:00Z	3.659	false
2020-01-16T22:00Z	3.659	false
2020-01-16T21:45Z	3.66	false
2020-01-16T21:45Z	3.66	false
2020-01-16T21:30Z	3.656	false
2020-01-16T21:30Z	3.656	false
2020-01-16T21:15Z	3.651	false
2020-01-16T21:15Z	3.651	false
2020-01-16T21:00Z	3.66	false
2020-01-16T21:00Z	3.66	false
2020-01-16T20:45Z	3.657	false
2020-01-16T20:45Z	3.657	false
2020-01-16T20:30Z	3.653	false
2020-01-16T20:30Z	3.653	false
2020-01-16T20:15Z	3.65	false
2020-01-16T20:15Z	3.65	false
2020-01-16T20:00Z	3.645	false
2020-01-16T20:00Z	3.645	false
2020-01-16T19:45Z	3.639	false
2020-01-16T19:45Z	3.639	false
2020-01-16T19:30Z	3.644	false
2020-01-16T19:30Z	3.644	false
2020-01-16T19:15Z	3.629	false
2020-01-16T19:15Z	3.629	false
2020-01-16T19:00Z	3.627	false
2020-01-16T19:00Z	3.627	false
2020-01-16T18:45Z	3.613	false
2020-01-16T18:45Z	3.613	false
2020-01-16T18:30Z	3.612	false
2020-01-16T18:30Z	3.612	false
2020-01-16T18:15Z	3.611	false
2020-01-16T18:15Z	3.611	false
2020-01-16T18:00Z	3.603	false
2020-01-16T18:00Z	3.603	false
2020-01-16T17:45Z	3.603	false
2020-01-16T17:45Z	3.603	false
2020-01-16T17:30Z	3.6	false
2020-01-16T17:30Z	3.6	false
2020-01-16T17:15Z	3.603	false
2020-01-16T17:15Z	3.603	false
2020-01-16T17:00Z	3.604	false
2020-01-16T17:00Z	3.604	false
2020-01-16T16:45Z	3.602	false
2020-01-16T16:45Z	3.602	false
2020-01-16T16:30Z	3.59	false
2020-01-16T16:30Z	3.59	false
2020-01-16T16:15Z	3.592	false
2020-01-16T16:15Z	3.592	false
2020-01-16T16:00Z	3.595	false
2020-01-16T16:00Z	3.595	false
2020-01-16T15:45Z	3.592	false
2020-01-16T15:45Z	3.592	false
2020-01-16T15:30Z	3.583	false
2020-01-16T15:30Z	3.583	false
2020-01-16T15:15Z	3.584	false
2020-01-16T15:15Z	3.584	false
2020-01-16T15:00Z	3.586	false
2020-01-16T15:00Z	3.586	false
2020-01-16T14:45Z	3.583	false
2020-01-16T14:45Z	3.583	false
2020-01-16T14:30Z	3.577	false
2020-01-16T14:30Z	3.577	false
2020-01-16T14:15Z	3.583	false
2020-01-16T14:15Z	3.583	false
2020-01-16T14:00Z	3.581	false
2020-01-16T14:00Z	3.581	false
2020-01-16T13:45Z	3.587	false
2020-01-16T13:45Z	3.587	false
2020-01-16T13:30Z	3.584	false
2020-01-16T13:30Z	3.584	false
2020-01-16T13:15Z	3.585	false
2020-01-16T13:15Z	3.585	false
2020-01-16T13:00Z	3.579	false
2020-01-16T13:00Z	3.579	false
2020-01-16T12:45Z	3.587	false
2020-01-16T12:45Z	3.587	false
2020-01-16T12:30Z	3.588	false
2020-01-16T12:30Z	3.588	false
2020-01-16T12:15Z	3.591	false
2020-01-16T12:15Z	3.591	false
2020-01-16T12:00Z	3.604	false
2020-01-16T12:00Z	3.604	false
2020-01-16T11:45Z	3.614	false
2020-01-16T11:45Z	3.614	false
2020-01-16T11:30Z	3.616	false
2020-01-16T11:30Z	3.616	false
2020-01-16T11:15Z	3.624	false
2020-01-16T11:15Z	3.624	false
2020-01-16T11:00Z	3.634	false
2020-01-16T11:00Z	3.634	false
2020-01-16T10:45Z	3.642	false
2020-01-16T10:45Z	3.642	false
2020-01-16T10:30Z	3.637	false
2020-01-16T10:30Z	3.637	false
2020-01-16T10:15Z	3.63	false
2020-01-16T10:15Z	3.63	false
2020-01-16T10:00Z	3.579	false
2020-01-16T10:00Z	3.579	false
2020-01-16T09:45Z	3.584	false
2020-01-16T09:45Z	3.584	false
2020-01-16T09:30Z	3.575	false
2020-01-16T09:30Z	3.575	false
2020-01-16T09:15Z	3.578	false
2020-01-16T09:15Z	3.578	false
2020-01-16T09:00Z	3.584	false
2020-01-16T09:00Z	3.584	false
2020-01-16T08:45Z	3.579	false
2020-01-16T08:45Z	3.579	false
2020-01-16T08:30Z	3.585	false
2020-01-16T08:30Z	3.585	false
2020-01-16T08:15Z	3.578	false
2020-01-16T08:15Z	3.578	false
2020-01-16T08:00Z	3.584	false
2020-01-16T08:00Z	3.584	false
2020-01-16T07:45Z	3.582	false
2020-01-16T07:45Z	3.582	false
2020-01-16T07:30Z	3.578	false
2020-01-16T07:30Z	3.578	false
2020-01-16T07:15Z	3.593	false
2020-01-16T07:15Z	3.593	false
2020-01-16T07:00Z	3.589	false
2020-01-16T07:00Z	3.589	false
2020-01-16T06:45Z	3.595	false
2020-01-16T06:45Z	3.595	false
2020-01-16T06:30Z	3.591	false
2020-01-16T06:30Z	3.591	false
2020-01-16T06:15Z	3.599	false
2020-01-16T06:15Z	3.599	false
2020-01-16T06:00Z	3.591	false
2020-01-16T06:00Z	3.591	false
2020-01-16T05:45Z	3.595	false
2020-01-16T05:45Z	3.595	false
2020-01-16T05:30Z	3.591	false
2020-01-16T05:30Z	3.591	false
2020-01-16T05:15Z	3.6	false
2020-01-16T05:15Z	3.6	false
2020-01-16T05:00Z	3.602	false
2020-01-16T05:00Z	3.602	false
2020-01-16T04:45Z	3.604	false
2020-01-16T04:45Z	3.604	false
2020-01-16T04:30Z	3.608	false
2020-01-16T04:30Z	3.608	false
2020-01-16T04:15Z	3.606	false
2020-01-16T04:15Z	3.606	false
2020-01-16T04:00Z	3.609	false
2020-01-16T04:00Z	3.609	false
2020-01-16T03:45Z	3.604	false
2020-01-16T03:45Z	3.604	false
2020-01-16T03:30Z	3.604	false
2020-01-16T03:30Z	3.604	false
2020-01-16T03:15Z	3.611	false
2020-01-16T03:15Z	3.611	false
2020-01-16T03:00Z	3.607	false
2020-01-16T03:00Z	3.607	false
2020-01-16T02:45Z	3.607	false
2020-01-16T02:45Z	3.607	false
2020-01-16T02:30Z	3.601	false
2020-01-16T02:30Z	3.601	false
2020-01-16T02:15Z	3.607	false
2020-01-16T02:15Z	3.607	false
2020-01-16T02:00Z	3.602	false
2020-01-16T02:00Z	3.602	false
2020-01-16T01:45Z	3.596	false
2020-01-16T01:45Z	3.596	false
2020-01-16T01:30Z	3.594	false
2020-01-16T01:30Z	3.594	false
2020-01-16T01:15Z	3.59	false
2020-01-16T01:15Z	3.59	false
2020-01-16T01:00Z	3.59	false
2020-01-16T01:00Z	3.59	false
2020-01-16T00:45Z	3.588	false
2020-01-16T00:45Z	3.588	false
2020-01-16T00:30Z	3.592	false
2020-01-16T00:30Z	3.592	false
2020-01-16T00:15Z	3.592	false
2020-01-16T00:15Z	3.592	false
2020-01-16T00:00Z	3.585	false
2020-01-16T00:00Z	3.585	false
2020-01-15T23:45Z	3.589	false
2020-01-15T23:45Z	3.589	false
2020-01-15T23:30Z	3.592	false
2020-01-15T23:30Z	3.592	false
2020-01-15T23:15Z	3.593	false
2020-01-15T23:15Z	3.593	false
2020-01-15T23:00Z	3.595	false
2020-01-15T23:00Z	3.595	false
2020-01-15T22:45Z	3.592	false
2020-01-15T22:45Z	3.592	false
2020-01-15T22:30Z	3.599	false
2020-01-15T22:30Z	3.599	false
2020-01-15T22:15Z	3.599	false
2020-01-15T22:15Z	3.599	false
2020-01-15T22:00Z	3.601	false
2020-01-15T22:00Z	3.601	false
2020-01-15T21:45Z	3.594	false
2020-01-15T21:45Z	3.594	false
2020-01-15T21:30Z	3.599	false
2020-01-15T21:30Z	3.599	false
2020-01-15T21:15Z	3.565	false
2020-01-15T21:15Z	3.565	false
2020-01-15T21:00Z	3.575	false
2020-01-15T21:00Z	3.575	false
2020-01-15T20:45Z	3.569	false
2020-01-15T20:45Z	3.569	false
2020-01-15T20:30Z	3.558	false
2020-01-15T20:30Z	3.558	false
2020-01-15T20:15Z	3.566	false
2020-01-15T20:15Z	3.566	false
2020-01-15T20:00Z	3.551	false
2020-01-15T20:00Z	3.551	false
2020-01-15T19:45Z	3.548	false
2020-01-15T19:45Z	3.548	false
2020-01-15T19:30Z	3.536	false
2020-01-15T19:30Z	3.536	false
2020-01-15T19:15Z	3.531	false
2020-01-15T19:15Z	3.531	false
2020-01-15T19:00Z	3.516	false
2020-01-15T19:00Z	3.516	false
2020-01-15T18:45Z	3.508	false
2020-01-15T18:45Z	3.508	false
2020-01-15T18:30Z	3.509	false
2020-01-15T18:30Z	3.509	false
2020-01-15T18:15Z	3.502	false
2020-01-15T18:15Z	3.502	false
2020-01-15T18:00Z	3.483	false
2020-01-15T18:00Z	3.483	false
2020-01-15T17:45Z	3.481	false
2020-01-15T17:45Z	3.481	false
2020-01-15T17:30Z	3.468	false
2020-01-15T17:30Z	3.468	false
2020-01-15T17:15Z	3.463	false
2020-01-15T17:15Z	3.463	false
2020-01-15T17:00Z	3.464	false
2020-01-15T17:00Z	3.464	false
2020-01-15T16:45Z	3.458	false
2020-01-15T16:45Z	3.458	false
2020-01-15T16:30Z	3.439	false
2020-01-15T16:30Z	3.439	false
2020-01-15T16:15Z	3.435	false
2020-01-15T16:15Z	3.435	false
2020-01-15T16:00Z	3.438	false
2020-01-15T16:00Z	3.438	false
2020-01-15T15:45Z	3.434	false
2020-01-15T15:45Z	3.434	false
2020-01-15T15:30Z	3.447	false
2020-01-15T15:30Z	3.447	false
2020-01-15T15:15Z	3.459	false
2020-01-15T15:15Z	3.459	false
2020-01-15T15:00Z	3.46	false
2020-01-15T15:00Z	3.46	false
2020-01-15T14:45Z	3.445	false
2020-01-15T14:45Z	3.445	false
2020-01-15T14:30Z	3.449	false
2020-01-15T14:30Z	3.449	false
2020-01-15T14:15Z	3.405	false
2020-01-15T14:15Z	3.405	false
2020-01-15T14:00Z	3.405	false
2020-01-15T14:00Z	3.405	false
2020-01-15T13:45Z	3.397	false
2020-01-15T13:45Z	3.397	false
2020-01-15T13:30Z	3.392	false
2020-01-15T13:30Z	3.392	false
2020-01-15T13:15Z	3.397	false
2020-01-15T13:15Z	3.397	false
2020-01-15T13:00Z	3.406	false
2020-01-15T13:00Z	3.406	false
2020-01-15T12:45Z	3.39	false
2020-01-15T12:45Z	3.39	false
2020-01-15T12:30Z	3.39	false
2020-01-15T12:30Z	3.39	false
2020-01-15T12:15Z	3.386	false
2020-01-15T12:15Z	3.386	false
2020-01-15T12:00Z	3.392	false
2020-01-15T12:00Z	3.392	false
2020-01-15T11:45Z	3.379	false
2020-01-15T11:45Z	3.379	false
2020-01-15T11:30Z	3.374	false
2020-01-15T11:30Z	3.374	false
2020-01-15T11:15Z	3.377	false
2020-01-15T11:15Z	3.377	false
2020-01-15T11:00Z	3.381	false
2020-01-15T11:00Z	3.381	false
2020-01-15T10:45Z	3.382	false
2020-01-15T10:45Z	3.382	false
2020-01-15T10:30Z	3.368	false
2020-01-15T10:30Z	3.368	false
2020-01-15T10:15Z	3.368	false
2020-01-15T10:15Z	3.368	false
2020-01-15T10:00Z	3.364	false
2020-01-15T10:00Z	3.364	false
2020-01-15T09:45Z	3.366	false
2020-01-15T09:45Z	3.366	false
2020-01-15T09:30Z	3.361	false
2020-01-15T09:30Z	3.361	false
2020-01-15T09:15Z	3.357	false
2020-01-15T09:15Z	3.357	false
2020-01-15T09:00Z	3.345	false
2020-01-15T09:00Z	3.345	false
2020-01-15T08:45Z	3.341	false
2020-01-15T08:45Z	3.341	false
2020-01-15T08:30Z	3.343	false
2020-01-15T08:30Z	3.343	false
2020-01-15T08:15Z	3.337	false
2020-01-15T08:15Z	3.337	false
2020-01-15T08:00Z	3.336	false
2020-01-15T08:00Z	3.336	false
2020-01-15T07:45Z	3.327	false
2020-01-15T07:45Z	3.327	false
2020-01-15T07:30Z	3.326	false
2020-01-15T07:30Z	3.326	false
2020-01-15T07:15Z	3.329	false
2020-01-15T07:15Z	3.329	false
2020-01-15T07:00Z	3.327	false
2020-01-15T07:00Z	3.327	false
2020-01-15T06:45Z	3.318	false
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2020-01-12T23:45Z	3.06	false
2020-01-12T23:45Z	3.06	false
2020-01-12T23:30Z	3.067	false
2020-01-12T23:30Z	3.067	false
2020-01-12T23:30Z	3.067	false
2020-01-12T23:30Z	3.067	false
2020-01-12T23:30Z	3.067	false
2020-01-12T23:30Z	3.067	false
2020-01-12T23:15Z	3.061	false
2020-01-12T23:15Z	3.061	false
2020-01-12T23:15Z	3.061	false
2020-01-12T23:15Z	3.061	false
2020-01-12T23:15Z	3.061	false
2020-01-12T23:15Z	3.061	false
2020-01-12T23:00Z	3.066	false
2020-01-12T23:00Z	3.066	false
2020-01-12T23:00Z	3.066	false
2020-01-12T23:00Z	3.066	false
2020-01-12T22:45Z	3.057	false
2020-01-12T22:45Z	3.057	false
2020-01-12T22:45Z	3.057	false
2020-01-12T22:45Z	3.057	false
2020-01-12T22:30Z	3.06	false
2020-01-12T22:30Z	3.06	false
2020-01-12T22:30Z	3.06	false
2020-01-12T22:30Z	3.06	false
2020-01-12T22:15Z	3.066	false
2020-01-12T22:15Z	3.066	false
2020-01-12T22:15Z	3.066	false
2020-01-12T22:15Z	3.066	false
2020-01-12T22:00Z	3.062	false
2020-01-12T22:00Z	3.062	false
2020-01-12T22:00Z	3.062	false
2020-01-12T22:00Z	3.062	false
2020-01-12T21:45Z	3.062	false
2020-01-12T21:45Z	3.062	false
2020-01-12T21:45Z	3.062	false
2020-01-12T21:45Z	3.062	false
2020-01-12T21:30Z	3.052	false
2020-01-12T21:30Z	3.052	false
2020-01-12T21:30Z	3.052	false
2020-01-12T21:30Z	3.052	false
2020-01-12T21:15Z	3.068	false
2020-01-12T21:15Z	3.068	false
2020-01-12T21:15Z	3.068	false
2020-01-12T21:15Z	3.068	false
2020-01-12T21:00Z	3.062	false
2020-01-12T21:00Z	3.062	false
2020-01-12T21:00Z	3.062	false
2020-01-12T21:00Z	3.062	false
2020-01-12T20:45Z	3.058	false
2020-01-12T20:45Z	3.058	false
2020-01-12T20:45Z	3.058	false
2020-01-12T20:45Z	3.058	false
2020-01-12T20:30Z	3.061	false
2020-01-12T20:30Z	3.061	false
2020-01-12T20:30Z	3.061	false
2020-01-12T20:30Z	3.061	false
2020-01-12T20:15Z	3.06	false
2020-01-12T20:15Z	3.06	false
2020-01-12T20:15Z	3.06	false
2020-01-12T20:15Z	3.06	false
2020-01-12T20:00Z	3.055	false
2020-01-12T20:00Z	3.055	false
2020-01-12T20:00Z	3.055	false
2020-01-12T20:00Z	3.055	false
2020-01-12T19:45Z	3.052	false
2020-01-12T19:45Z	3.052	false
2020-01-12T19:45Z	3.052	false
2020-01-12T19:45Z	3.052	false
2020-01-12T19:30Z	3.057	false
2020-01-12T19:30Z	3.057	false
2020-01-12T19:30Z	3.057	false
2020-01-12T19:30Z	3.057	false
2020-01-12T19:15Z	3.067	false
2020-01-12T19:15Z	3.067	false
2020-01-12T19:15Z	3.067	false
2020-01-12T19:15Z	3.067	false
2020-01-12T19:00Z	3.058	false
2020-01-12T19:00Z	3.058	false
2020-01-12T18:45Z	3.054	false
2020-01-12T18:45Z	3.054	false
2020-01-12T18:30Z	3.057	false
2020-01-12T18:30Z	3.057	false
2020-01-12T18:15Z	3.061	false
2020-01-12T18:15Z	3.061	false
2020-01-12T18:00Z	3.053	false
2020-01-12T18:00Z	3.053	false
2020-01-12T17:45Z	3.056	false
2020-01-12T17:45Z	3.056	false
2020-01-12T17:30Z	3.051	false
2020-01-12T17:30Z	3.051	false
2020-01-12T17:15Z	3.043	false
2020-01-12T17:15Z	3.043	false
2020-01-12T17:00Z	3.037	false
2020-01-12T17:00Z	3.037	false
2020-01-12T16:45Z	3.041	false
2020-01-12T16:45Z	3.041	false
2020-01-12T16:30Z	3.039	false
2020-01-12T16:30Z	3.039	false
2020-01-12T16:15Z	3.028	false
2020-01-12T16:15Z	3.028	false
2020-01-12T16:00Z	3.018	false
2020-01-12T16:00Z	3.018	false
2020-01-12T15:45Z	2.99	false
2020-01-12T15:45Z	2.99	false
2020-01-12T15:30Z	2.993	false
2020-01-12T15:30Z	2.993	false
2020-01-12T15:15Z	2.994	false
2020-01-12T15:15Z	2.994	false
2020-01-12T15:00Z	3	false
2020-01-12T15:00Z	3	false
2020-01-12T14:45Z	3.014	false
2020-01-12T14:45Z	3.014	false
2020-01-12T14:30Z	3.072	false
2020-01-12T14:30Z	3.072	false
2020-01-12T14:15Z	3.07	false
2020-01-12T14:15Z	3.07	false
2020-01-12T14:00Z	3.077	false
2020-01-12T14:00Z	3.077	false
2020-01-12T13:45Z	3.081	false
2020-01-12T13:45Z	3.081	false
2020-01-12T13:30Z	3.095	false
2020-01-12T13:30Z	3.095	false
2020-01-12T13:15Z	3.099	false
2020-01-12T13:15Z	3.099	false

Forecast data

Key information

• Station name: Bell Weir (downstream)
• Station ID: 7171
• River name: River Thames
• Typical range: 2.40m to 3.73m
• Highest level on record: 5.24m on 09 February 2014
• Site datum: 10.31mAOD (what does this mean?)

How are river levels measured?

The Environment agency uses a network of monitoring stations across the country. Each one has its own datum - a height in metres fixed relative to mean sea level. This height is expressed as metres above ordnance datum (mAOD). The river levels we provide for each monitoring station are all relative to its site datum.

If we didn't do this, we'd show some very high measurements, which could cause confusion. By using a local site datum, the river levels are easier to understand, especially by users familiar with the data from a particular monitoring station.

A river's height above ordnance datum can be seen by adding the site datum to the river level.

How often are river levels measured?

We use measuring stations like this one to collect water level data, usually once or twice a day. We collect data more frequently when there's a greater risk of flooding. That's why the graph might show a short time lag since the last measurement.

How might river levels affect flood risk?

Typical range

This is the usual range of river levels at this station, based on historical data.

Above typical

This means that flooding is possible because river levels at this station are currently higher than usual.
Many factors can influence the possibility of flooding - river levels are only one indicator. Always check if there's a flood warning in place at a particular location.

Below typical

This means that river levels at this station are currently lower than usual.
Drought or water management measures may be in place. Please check for the latest information on water resources and restrictions in your area.

• View nearby measuring stations

• View the flood information service for England
• View your property's long term risk of flooding

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