River level River Thames at Molesey Lock (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 3.75m 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 3.61m 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	3.748	false
2020-01-17T13:00Z	3.748	false
2020-01-17T12:45Z	3.742	false
2020-01-17T12:45Z	3.742	false
2020-01-17T12:30Z	3.741	false
2020-01-17T12:30Z	3.741	false
2020-01-17T12:15Z	3.743	false
2020-01-17T12:15Z	3.743	false
2020-01-17T12:00Z	3.744	false
2020-01-17T12:00Z	3.744	false
2020-01-17T11:45Z	3.746	false
2020-01-17T11:45Z	3.746	false
2020-01-17T11:30Z	3.751	false
2020-01-17T11:30Z	3.751	false
2020-01-17T11:15Z	3.755	false
2020-01-17T11:15Z	3.755	false
2020-01-17T11:00Z	3.759	false
2020-01-17T11:00Z	3.759	false
2020-01-17T10:45Z	3.764	false
2020-01-17T10:45Z	3.764	false
2020-01-17T10:30Z	3.764	false
2020-01-17T10:30Z	3.764	false
2020-01-17T10:15Z	3.77	false
2020-01-17T10:15Z	3.77	false
2020-01-17T10:00Z	3.779	false
2020-01-17T10:00Z	3.779	false
2020-01-17T09:45Z	3.787	false
2020-01-17T09:45Z	3.787	false
2020-01-17T09:30Z	3.794	false
2020-01-17T09:30Z	3.794	false
2020-01-17T09:15Z	3.8	false
2020-01-17T09:15Z	3.8	false
2020-01-17T09:00Z	3.804	false
2020-01-17T09:00Z	3.804	false
2020-01-17T08:45Z	3.805	false
2020-01-17T08:45Z	3.805	false
2020-01-17T08:30Z	3.804	false
2020-01-17T08:30Z	3.804	false
2020-01-17T08:15Z	3.799	false
2020-01-17T08:15Z	3.799	false
2020-01-17T08:00Z	3.783	false
2020-01-17T08:00Z	3.783	false
2020-01-17T07:45Z	3.764	false
2020-01-17T07:45Z	3.764	false
2020-01-17T07:30Z	3.739	false
2020-01-17T07:30Z	3.739	false
2020-01-17T07:15Z	3.718	false
2020-01-17T07:15Z	3.718	false
2020-01-17T07:00Z	3.703	false
2020-01-17T07:00Z	3.703	false
2020-01-17T06:45Z	3.692	false
2020-01-17T06:45Z	3.692	false
2020-01-17T06:30Z	3.687	false
2020-01-17T06:30Z	3.687	false
2020-01-17T06:15Z	3.686	false
2020-01-17T06:15Z	3.686	false
2020-01-17T06:00Z	3.684	false
2020-01-17T06:00Z	3.684	false
2020-01-17T05:45Z	3.686	false
2020-01-17T05:45Z	3.686	false
2020-01-17T05:30Z	3.686	false
2020-01-17T05:30Z	3.686	false
2020-01-17T05:15Z	3.688	false
2020-01-17T05:15Z	3.688	false
2020-01-17T05:00Z	3.69	false
2020-01-17T05:00Z	3.69	false
2020-01-17T04:45Z	3.692	false
2020-01-17T04:45Z	3.692	false
2020-01-17T04:30Z	3.694	false
2020-01-17T04:30Z	3.694	false
2020-01-17T04:15Z	3.696	false
2020-01-17T04:15Z	3.696	false
2020-01-17T04:00Z	3.699	false
2020-01-17T04:00Z	3.699	false
2020-01-17T03:45Z	3.702	false
2020-01-17T03:45Z	3.702	false
2020-01-17T03:30Z	3.704	false
2020-01-17T03:30Z	3.704	false
2020-01-17T03:15Z	3.707	false
2020-01-17T03:15Z	3.707	false
2020-01-17T03:00Z	3.71	false
2020-01-17T03:00Z	3.71	false
2020-01-17T02:45Z	3.713	false
2020-01-17T02:45Z	3.713	false
2020-01-17T02:30Z	3.717	false
2020-01-17T02:30Z	3.717	false
2020-01-17T02:15Z	3.721	false
2020-01-17T02:15Z	3.721	false
2020-01-17T02:00Z	3.724	false
2020-01-17T02:00Z	3.724	false
2020-01-17T01:45Z	3.727	false
2020-01-17T01:45Z	3.727	false
2020-01-17T01:30Z	3.731	false
2020-01-17T01:30Z	3.731	false
2020-01-17T01:15Z	3.735	false
2020-01-17T01:15Z	3.735	false
2020-01-17T01:00Z	3.738	false
2020-01-17T01:00Z	3.738	false
2020-01-17T00:45Z	3.743	false
2020-01-17T00:45Z	3.743	false
2020-01-17T00:30Z	3.749	false
2020-01-17T00:30Z	3.749	false
2020-01-17T00:15Z	3.755	false
2020-01-17T00:15Z	3.755	false
2020-01-17T00:00Z	3.761	false
2020-01-17T00:00Z	3.761	false
2020-01-16T23:45Z	3.768	false
2020-01-16T23:45Z	3.768	false
2020-01-16T23:30Z	3.774	false
2020-01-16T23:30Z	3.774	false
2020-01-16T23:15Z	3.782	false
2020-01-16T23:15Z	3.782	false
2020-01-16T23:00Z	3.79	false
2020-01-16T23:00Z	3.79	false
2020-01-16T22:45Z	3.799	false
2020-01-16T22:45Z	3.799	false
2020-01-16T22:30Z	3.81	false
2020-01-16T22:30Z	3.81	false
2020-01-16T22:15Z	3.822	false
2020-01-16T22:15Z	3.822	false
2020-01-16T22:00Z	3.835	false
2020-01-16T22:00Z	3.835	false
2020-01-16T21:45Z	3.851	false
2020-01-16T21:45Z	3.851	false
2020-01-16T21:30Z	3.867	false
2020-01-16T21:30Z	3.867	false
2020-01-16T21:15Z	3.885	false
2020-01-16T21:15Z	3.885	false
2020-01-16T21:00Z	3.904	false
2020-01-16T21:00Z	3.904	false
2020-01-16T20:45Z	3.921	false
2020-01-16T20:45Z	3.921	false
2020-01-16T20:30Z	3.932	false
2020-01-16T20:30Z	3.932	false
2020-01-16T20:15Z	3.939	false
2020-01-16T20:15Z	3.939	false
2020-01-16T20:00Z	3.94	false
2020-01-16T20:00Z	3.94	false
2020-01-16T19:45Z	3.935	false
2020-01-16T19:45Z	3.935	false
2020-01-16T19:30Z	3.92	false
2020-01-16T19:30Z	3.92	false
2020-01-16T19:15Z	3.89	false
2020-01-16T19:15Z	3.89	false
2020-01-16T19:00Z	3.846	false
2020-01-16T19:00Z	3.846	false
2020-01-16T18:45Z	3.805	false
2020-01-16T18:45Z	3.805	false
2020-01-16T18:30Z	3.769	false
2020-01-16T18:30Z	3.769	false
2020-01-16T18:15Z	3.746	false
2020-01-16T18:15Z	3.746	false
2020-01-16T18:00Z	3.732	false
2020-01-16T18:00Z	3.732	false
2020-01-16T17:45Z	3.728	false
2020-01-16T17:45Z	3.728	false
2020-01-16T17:30Z	3.727	false
2020-01-16T17:30Z	3.727	false
2020-01-16T17:15Z	3.727	false
2020-01-16T17:15Z	3.727	false
2020-01-16T17:00Z	3.731	false
2020-01-16T17:00Z	3.731	false
2020-01-16T16:45Z	3.732	false
2020-01-16T16:45Z	3.732	false
2020-01-16T16:30Z	3.734	false
2020-01-16T16:30Z	3.734	false
2020-01-16T16:15Z	3.734	false
2020-01-16T16:15Z	3.734	false
2020-01-16T16:00Z	3.736	false
2020-01-16T16:00Z	3.736	false
2020-01-16T15:45Z	3.742	false
2020-01-16T15:45Z	3.742	false
2020-01-16T15:30Z	3.748	false
2020-01-16T15:30Z	3.748	false
2020-01-16T15:15Z	3.753	false
2020-01-16T15:15Z	3.753	false
2020-01-16T15:00Z	3.768	false
2020-01-16T15:00Z	3.768	false
2020-01-16T14:45Z	3.788	false
2020-01-16T14:45Z	3.788	false
2020-01-16T14:30Z	3.796	false
2020-01-16T14:30Z	3.796	false
2020-01-16T14:15Z	3.811	false
2020-01-16T14:15Z	3.811	false
2020-01-16T14:00Z	3.823	false
2020-01-16T14:00Z	3.823	false
2020-01-16T13:45Z	3.82	false
2020-01-16T13:45Z	3.82	false
2020-01-16T13:30Z	3.814	false
2020-01-16T13:30Z	3.814	false
2020-01-16T13:15Z	3.812	false
2020-01-16T13:15Z	3.812	false
2020-01-16T13:00Z	3.805	false
2020-01-16T13:00Z	3.805	false
2020-01-16T12:45Z	3.8	false
2020-01-16T12:45Z	3.8	false
2020-01-16T12:30Z	3.783	false
2020-01-16T12:30Z	3.783	false
2020-01-16T12:15Z	3.776	false
2020-01-16T12:15Z	3.776	false
2020-01-16T12:00Z	3.767	false
2020-01-16T12:00Z	3.767	false
2020-01-16T11:45Z	3.756	false
2020-01-16T11:45Z	3.756	false
2020-01-16T11:30Z	3.76	false
2020-01-16T11:30Z	3.76	false
2020-01-16T11:15Z	3.763	false
2020-01-16T11:15Z	3.763	false
2020-01-16T11:00Z	3.768	false
2020-01-16T11:00Z	3.768	false
2020-01-16T10:45Z	3.771	false
2020-01-16T10:45Z	3.771	false
2020-01-16T10:30Z	3.776	false
2020-01-16T10:30Z	3.776	false
2020-01-16T10:15Z	3.78	false
2020-01-16T10:15Z	3.78	false
2020-01-16T10:00Z	3.776	false
2020-01-16T10:00Z	3.776	false
2020-01-16T09:45Z	3.769	false
2020-01-16T09:45Z	3.769	false
2020-01-16T09:30Z	3.779	false
2020-01-16T09:30Z	3.779	false
2020-01-16T09:15Z	3.793	false
2020-01-16T09:15Z	3.793	false
2020-01-16T09:00Z	3.808	false
2020-01-16T09:00Z	3.808	false
2020-01-16T08:45Z	3.825	false
2020-01-16T08:45Z	3.825	false
2020-01-16T08:30Z	3.841	false
2020-01-16T08:30Z	3.841	false
2020-01-16T08:15Z	3.856	false
2020-01-16T08:15Z	3.856	false
2020-01-16T08:00Z	3.865	false
2020-01-16T08:00Z	3.865	false
2020-01-16T07:45Z	3.871	false
2020-01-16T07:45Z	3.871	false
2020-01-16T07:30Z	3.869	false
2020-01-16T07:30Z	3.869	false
2020-01-16T07:15Z	3.86	false
2020-01-16T07:15Z	3.86	false
2020-01-16T07:00Z	3.838	false
2020-01-16T07:00Z	3.838	false
2020-01-16T06:45Z	3.806	false
2020-01-16T06:45Z	3.806	false
2020-01-16T06:30Z	3.768	false
2020-01-16T06:30Z	3.768	false
2020-01-16T06:15Z	3.734	false
2020-01-16T06:15Z	3.734	false
2020-01-16T06:00Z	3.704	false
2020-01-16T06:00Z	3.704	false
2020-01-16T05:45Z	3.68	false
2020-01-16T05:45Z	3.68	false
2020-01-16T05:30Z	3.662	false
2020-01-16T05:30Z	3.662	false
2020-01-16T05:15Z	3.652	false
2020-01-16T05:15Z	3.652	false
2020-01-16T05:00Z	3.647	false
2020-01-16T05:00Z	3.647	false
2020-01-16T04:45Z	3.643	false
2020-01-16T04:45Z	3.643	false
2020-01-16T04:30Z	3.64	false
2020-01-16T04:30Z	3.64	false
2020-01-16T04:15Z	3.637	false
2020-01-16T04:15Z	3.637	false
2020-01-16T04:00Z	3.635	false
2020-01-16T04:00Z	3.635	false
2020-01-16T03:45Z	3.633	false
2020-01-16T03:45Z	3.633	false
2020-01-16T03:30Z	3.63	false
2020-01-16T03:30Z	3.63	false
2020-01-16T03:15Z	3.629	false
2020-01-16T03:15Z	3.629	false
2020-01-16T03:00Z	3.627	false
2020-01-16T03:00Z	3.627	false
2020-01-16T02:45Z	3.625	false
2020-01-16T02:45Z	3.625	false
2020-01-16T02:30Z	3.621	false
2020-01-16T02:30Z	3.621	false
2020-01-16T02:15Z	3.62	false
2020-01-16T02:15Z	3.62	false
2020-01-16T02:00Z	3.618	false
2020-01-16T02:00Z	3.618	false
2020-01-16T01:45Z	3.616	false
2020-01-16T01:45Z	3.616	false
2020-01-16T01:30Z	3.612	false
2020-01-16T01:30Z	3.612	false
2020-01-16T01:15Z	3.61	false
2020-01-16T01:15Z	3.61	false
2020-01-16T01:00Z	3.608	false
2020-01-16T01:00Z	3.608	false
2020-01-16T00:45Z	3.609	false
2020-01-16T00:45Z	3.609	false
2020-01-16T00:30Z	3.608	false
2020-01-16T00:30Z	3.608	false
2020-01-16T00:15Z	3.608	false
2020-01-16T00:15Z	3.608	false
2020-01-16T00:00Z	3.609	false
2020-01-16T00:00Z	3.609	false
2020-01-15T23:45Z	3.608	false
2020-01-15T23:45Z	3.608	false
2020-01-15T23:30Z	3.609	false
2020-01-15T23:30Z	3.609	false
2020-01-15T23:15Z	3.607	false
2020-01-15T23:15Z	3.607	false
2020-01-15T23:00Z	3.607	false
2020-01-15T23:00Z	3.607	false
2020-01-15T22:45Z	3.601	false
2020-01-15T22:45Z	3.601	false
2020-01-15T22:30Z	3.588	false
2020-01-15T22:30Z	3.588	false
2020-01-15T22:15Z	3.583	false
2020-01-15T22:15Z	3.583	false
2020-01-15T22:00Z	3.586	false
2020-01-15T22:00Z	3.586	false
2020-01-15T21:45Z	3.592	false
2020-01-15T21:45Z	3.592	false
2020-01-15T21:30Z	3.597	false
2020-01-15T21:30Z	3.597	false
2020-01-15T21:15Z	3.605	false
2020-01-15T21:15Z	3.605	false
2020-01-15T21:00Z	3.616	false
2020-01-15T21:00Z	3.616	false
2020-01-15T20:45Z	3.63	false
2020-01-15T20:45Z	3.63	false
2020-01-15T20:30Z	3.649	false
2020-01-15T20:30Z	3.649	false
2020-01-15T20:15Z	3.668	false
2020-01-15T20:15Z	3.668	false
2020-01-15T20:00Z	3.685	false
2020-01-15T20:00Z	3.685	false
2020-01-15T19:45Z	3.699	false
2020-01-15T19:45Z	3.699	false
2020-01-15T19:30Z	3.711	false
2020-01-15T19:30Z	3.711	false
2020-01-15T19:15Z	3.719	false
2020-01-15T19:15Z	3.719	false
2020-01-15T19:00Z	3.721	false
2020-01-15T19:00Z	3.721	false
2020-01-15T18:45Z	3.71	false
2020-01-15T18:45Z	3.71	false
2020-01-15T18:30Z	3.689	false
2020-01-15T18:30Z	3.689	false
2020-01-15T18:15Z	3.653	false
2020-01-15T18:15Z	3.653	false
2020-01-15T18:00Z	3.602	false
2020-01-15T18:00Z	3.602	false
2020-01-15T17:45Z	3.535	false
2020-01-15T17:45Z	3.535	false
2020-01-15T17:30Z	3.49	false
2020-01-15T17:30Z	3.49	false
2020-01-15T17:15Z	3.467	false
2020-01-15T17:15Z	3.467	false
2020-01-15T17:00Z	3.457	false
2020-01-15T17:00Z	3.457	false
2020-01-15T16:45Z	3.456	false
2020-01-15T16:45Z	3.456	false
2020-01-15T16:30Z	3.46	false
2020-01-15T16:30Z	3.46	false
2020-01-15T16:15Z	3.465	false
2020-01-15T16:15Z	3.465	false
2020-01-15T16:00Z	3.463	false
2020-01-15T16:00Z	3.463	false
2020-01-15T15:45Z	3.438	false
2020-01-15T15:45Z	3.438	false
2020-01-15T15:30Z	3.419	false
2020-01-15T15:30Z	3.419	false
2020-01-15T15:15Z	3.41	false
2020-01-15T15:15Z	3.41	false
2020-01-15T15:00Z	3.417	false
2020-01-15T15:00Z	3.417	false
2020-01-15T14:45Z	3.428	false
2020-01-15T14:45Z	3.428	false
2020-01-15T14:30Z	3.431	false
2020-01-15T14:30Z	3.431	false
2020-01-15T14:15Z	3.436	false
2020-01-15T14:15Z	3.436	false
2020-01-15T14:00Z	3.441	false
2020-01-15T14:00Z	3.441	false
2020-01-15T13:45Z	3.448	false
2020-01-15T13:45Z	3.448	false
2020-01-15T13:30Z	3.451	false
2020-01-15T13:30Z	3.451	false
2020-01-15T13:15Z	3.452	false
2020-01-15T13:15Z	3.452	false
2020-01-15T13:00Z	3.454	false
2020-01-15T13:00Z	3.454	false
2020-01-15T12:45Z	3.454	false
2020-01-15T12:45Z	3.454	false
2020-01-15T12:30Z	3.455	false
2020-01-15T12:30Z	3.455	false
2020-01-15T12:15Z	3.46	false
2020-01-15T12:15Z	3.46	false
2020-01-15T12:00Z	3.472	false
2020-01-15T12:00Z	3.472	false
2020-01-15T11:45Z	3.48	false
2020-01-15T11:45Z	3.48	false
2020-01-15T11:30Z	3.488	false
2020-01-15T11:30Z	3.488	false
2020-01-15T11:15Z	3.49	false
2020-01-15T11:15Z	3.49	false
2020-01-15T11:00Z	3.487	false
2020-01-15T11:00Z	3.487	false
2020-01-15T10:45Z	3.475	false
2020-01-15T10:45Z	3.475	false
2020-01-15T10:30Z	3.458	false
2020-01-15T10:30Z	3.458	false
2020-01-15T10:15Z	3.435	false
2020-01-15T10:15Z	3.435	false
2020-01-15T10:00Z	3.424	false
2020-01-15T10:00Z	3.424	false
2020-01-15T09:45Z	3.411	false
2020-01-15T09:45Z	3.411	false
2020-01-15T09:30Z	3.402	false
2020-01-15T09:30Z	3.402	false
2020-01-15T09:15Z	3.395	false
2020-01-15T09:15Z	3.395	false
2020-01-15T09:00Z	3.396	false
2020-01-15T09:00Z	3.396	false
2020-01-15T08:45Z	3.394	false
2020-01-15T08:45Z	3.394	false
2020-01-15T08:30Z	3.387	false
2020-01-15T08:30Z	3.387	false
2020-01-15T08:15Z	3.373	false
2020-01-15T08:15Z	3.373	false
2020-01-15T08:00Z	3.348	false
2020-01-15T08:00Z	3.348	false
2020-01-15T07:45Z	3.348	false
2020-01-15T07:45Z	3.348	false
2020-01-15T07:30Z	3.35	false
2020-01-15T07:30Z	3.35	false
2020-01-15T07:15Z	3.354	false
2020-01-15T07:15Z	3.354	false
2020-01-15T07:00Z	3.358	false
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2020-01-13T00:00Z	2.903	false
2020-01-13T00:00Z	2.903	false
2020-01-13T00:00Z	2.903	false
2020-01-13T00:00Z	2.903	false
2020-01-13T00:00Z	2.903	false
2020-01-13T00:00Z	2.903	false
2020-01-12T23:45Z	2.904	false
2020-01-12T23:45Z	2.904	false
2020-01-12T23:45Z	2.904	false
2020-01-12T23:45Z	2.904	false
2020-01-12T23:45Z	2.904	false
2020-01-12T23:45Z	2.904	false
2020-01-12T23:30Z	2.905	false
2020-01-12T23:30Z	2.905	false
2020-01-12T23:30Z	2.905	false
2020-01-12T23:30Z	2.905	false
2020-01-12T23:30Z	2.905	false
2020-01-12T23:30Z	2.905	false
2020-01-12T23:15Z	2.905	false
2020-01-12T23:15Z	2.905	false
2020-01-12T23:15Z	2.905	false
2020-01-12T23:15Z	2.905	false
2020-01-12T23:15Z	2.905	false
2020-01-12T23:15Z	2.905	false
2020-01-12T23:00Z	2.905	false
2020-01-12T23:00Z	2.905	false
2020-01-12T23:00Z	2.905	false
2020-01-12T23:00Z	2.905	false
2020-01-12T22:45Z	2.907	false
2020-01-12T22:45Z	2.907	false
2020-01-12T22:45Z	2.907	false
2020-01-12T22:45Z	2.907	false
2020-01-12T22:30Z	2.907	false
2020-01-12T22:30Z	2.907	false
2020-01-12T22:30Z	2.907	false
2020-01-12T22:30Z	2.907	false
2020-01-12T22:15Z	2.908	false
2020-01-12T22:15Z	2.908	false
2020-01-12T22:15Z	2.908	false
2020-01-12T22:15Z	2.908	false
2020-01-12T22:00Z	2.909	false
2020-01-12T22:00Z	2.909	false
2020-01-12T22:00Z	2.909	false
2020-01-12T22:00Z	2.909	false
2020-01-12T21:45Z	2.909	false
2020-01-12T21:45Z	2.909	false
2020-01-12T21:45Z	2.909	false
2020-01-12T21:45Z	2.909	false
2020-01-12T21:30Z	2.911	false
2020-01-12T21:30Z	2.911	false
2020-01-12T21:30Z	2.911	false
2020-01-12T21:30Z	2.911	false
2020-01-12T21:15Z	2.913	false
2020-01-12T21:15Z	2.913	false
2020-01-12T21:15Z	2.913	false
2020-01-12T21:15Z	2.913	false
2020-01-12T21:00Z	2.914	false
2020-01-12T21:00Z	2.914	false
2020-01-12T21:00Z	2.914	false
2020-01-12T21:00Z	2.914	false
2020-01-12T20:45Z	2.917	false
2020-01-12T20:45Z	2.917	false
2020-01-12T20:45Z	2.917	false
2020-01-12T20:45Z	2.917	false
2020-01-12T20:30Z	2.92	false
2020-01-12T20:30Z	2.92	false
2020-01-12T20:30Z	2.92	false
2020-01-12T20:30Z	2.92	false
2020-01-12T20:15Z	2.922	false
2020-01-12T20:15Z	2.922	false
2020-01-12T20:15Z	2.922	false
2020-01-12T20:15Z	2.922	false
2020-01-12T20:00Z	2.927	false
2020-01-12T20:00Z	2.927	false
2020-01-12T20:00Z	2.927	false
2020-01-12T20:00Z	2.927	false
2020-01-12T19:45Z	2.931	false
2020-01-12T19:45Z	2.931	false
2020-01-12T19:45Z	2.931	false
2020-01-12T19:45Z	2.931	false
2020-01-12T19:30Z	2.935	false
2020-01-12T19:30Z	2.935	false
2020-01-12T19:30Z	2.935	false
2020-01-12T19:30Z	2.935	false
2020-01-12T19:15Z	2.941	false
2020-01-12T19:15Z	2.941	false
2020-01-12T19:15Z	2.941	false
2020-01-12T19:15Z	2.941	false
2020-01-12T19:00Z	2.947	false
2020-01-12T19:00Z	2.947	false
2020-01-12T18:45Z	2.954	false
2020-01-12T18:45Z	2.954	false
2020-01-12T18:30Z	2.964	false
2020-01-12T18:30Z	2.964	false
2020-01-12T18:15Z	2.975	false
2020-01-12T18:15Z	2.975	false
2020-01-12T18:00Z	2.987	false
2020-01-12T18:00Z	2.987	false
2020-01-12T17:45Z	3.002	false
2020-01-12T17:45Z	3.002	false
2020-01-12T17:30Z	3.019	false
2020-01-12T17:30Z	3.019	false
2020-01-12T17:15Z	3.04	false
2020-01-12T17:15Z	3.04	false
2020-01-12T17:00Z	3.061	false
2020-01-12T17:00Z	3.061	false
2020-01-12T16:45Z	3.075	false
2020-01-12T16:45Z	3.075	false
2020-01-12T16:30Z	3.077	false
2020-01-12T16:30Z	3.077	false
2020-01-12T16:15Z	3.052	false
2020-01-12T16:15Z	3.052	false
2020-01-12T16:00Z	3.005	false
2020-01-12T16:00Z	3.005	false
2020-01-12T15:45Z	2.961	false
2020-01-12T15:45Z	2.961	false
2020-01-12T15:30Z	2.932	false
2020-01-12T15:30Z	2.932	false
2020-01-12T15:15Z	2.918	false
2020-01-12T15:15Z	2.918	false
2020-01-12T15:00Z	2.913	false
2020-01-12T15:00Z	2.913	false
2020-01-12T14:45Z	2.908	false
2020-01-12T14:45Z	2.908	false
2020-01-12T14:30Z	2.903	false
2020-01-12T14:30Z	2.903	false
2020-01-12T14:15Z	2.893	false
2020-01-12T14:15Z	2.893	false
2020-01-12T14:00Z	2.896	false
2020-01-12T14:00Z	2.896	false
2020-01-12T13:45Z	2.901	false
2020-01-12T13:45Z	2.901	false
2020-01-12T13:30Z	2.902	false
2020-01-12T13:30Z	2.902	false
2020-01-12T13:15Z	2.904	false
2020-01-12T13:15Z	2.904	false

Forecast data

Key information

• Station name: Molesey Lock (downstream)
• Station ID: 7395
• River name: River Thames
• Typical range: 2.45m to 3.61m
• Highest level on record: 4.95m on 02 January 2003
• Site datum: 1.96mAOD (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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