River level River Thames at Northmoor Lock (downstream data)

Check for flood warnings in this area

Latest recorded level 1.81m at 6:45pm Thursday 9 April 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

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• Measured level
• When the water level reaches 3.00m here, minor flooding is possible in this area
• Highest recorded level. Hide
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Observed data

DateTime	Value	Error
2020-04-09T17:45Z	1.812	false
2020-04-09T17:30Z	1.813	false
2020-04-09T17:15Z	1.805	false
2020-04-09T17:00Z	1.808	false
2020-04-09T16:45Z	1.807	false
2020-04-09T16:30Z	1.8	false
2020-04-09T16:15Z	1.794	false
2020-04-09T16:00Z	1.794	false
2020-04-09T15:45Z	1.791	false
2020-04-09T15:30Z	1.787	false
2020-04-09T15:15Z	1.785	false
2020-04-09T15:00Z	1.782	false
2020-04-09T14:45Z	1.782	false
2020-04-09T14:30Z	1.783	false
2020-04-09T14:15Z	1.779	false
2020-04-09T14:00Z	1.78	false
2020-04-09T13:45Z	1.778	false
2020-04-09T13:30Z	1.78	false
2020-04-09T13:15Z	1.779	false
2020-04-09T13:00Z	1.788	false
2020-04-09T12:45Z	1.789	false
2020-04-09T12:30Z	1.784	false
2020-04-09T12:15Z	1.791	false
2020-04-09T12:00Z	1.792	false
2020-04-09T11:45Z	1.797	false
2020-04-09T11:30Z	1.801	false
2020-04-09T11:15Z	1.799	false
2020-04-09T11:00Z	1.805	false
2020-04-09T10:45Z	1.803	false
2020-04-09T10:30Z	1.801	false
2020-04-09T10:15Z	1.801	false
2020-04-09T10:00Z	1.805	false
2020-04-09T09:45Z	1.814	false
2020-04-09T09:30Z	1.816	false
2020-04-09T09:15Z	1.819	false
2020-04-09T09:00Z	1.816	false
2020-04-09T08:45Z	1.815	false
2020-04-09T08:30Z	1.818	false
2020-04-09T08:15Z	1.813	false
2020-04-09T08:00Z	1.818	false
2020-04-09T07:45Z	1.818	false
2020-04-09T07:30Z	1.821	false
2020-04-09T07:15Z	1.815	false
2020-04-09T07:00Z	1.818	false
2020-04-09T06:45Z	1.821	false
2020-04-09T06:30Z	1.826	false
2020-04-09T06:15Z	1.818	false
2020-04-09T06:00Z	1.825	false
2020-04-09T05:45Z	1.821	false
2020-04-09T05:30Z	1.82	false
2020-04-09T05:15Z	1.822	false
2020-04-09T05:00Z	1.827	false
2020-04-09T04:45Z	1.83	false
2020-04-09T04:30Z	1.824	false
2020-04-09T04:15Z	1.821	false
2020-04-09T04:00Z	1.829	false
2020-04-09T03:45Z	1.824	false
2020-04-09T03:30Z	1.819	false
2020-04-09T03:15Z	1.828	false
2020-04-09T03:00Z	1.829	false
2020-04-09T02:45Z	1.825	false
2020-04-09T02:30Z	1.832	false
2020-04-09T02:15Z	1.833	false
2020-04-09T02:00Z	1.824	false
2020-04-09T01:45Z	1.831	false
2020-04-09T01:30Z	1.838	false
2020-04-09T01:15Z	1.83	false
2020-04-09T01:00Z	1.836	false
2020-04-09T00:45Z	1.842	false
2020-04-09T00:30Z	1.838	false
2020-04-09T00:15Z	1.836	false
2020-04-09T00:00Z	1.839	false
2020-04-08T23:45Z	1.842	false
2020-04-08T23:30Z	1.839	false
2020-04-08T23:15Z	1.844	false
2020-04-08T23:00Z	1.838	false
2020-04-08T22:45Z	1.84	false
2020-04-08T22:30Z	1.842	false
2020-04-08T22:15Z	1.847	false
2020-04-08T22:00Z	1.847	false
2020-04-08T21:45Z	1.85	false
2020-04-08T21:30Z	1.855	false
2020-04-08T21:15Z	1.852	false
2020-04-08T21:00Z	1.854	false
2020-04-08T20:45Z	1.854	false
2020-04-08T20:30Z	1.858	false
2020-04-08T20:15Z	1.86	false
2020-04-08T20:00Z	1.86	false
2020-04-08T19:45Z	1.864	false
2020-04-08T19:30Z	1.871	false
2020-04-08T19:15Z	1.87	false
2020-04-08T19:00Z	1.877	false
2020-04-08T18:45Z	1.878	false
2020-04-08T18:30Z	1.881	false
2020-04-08T18:15Z	1.882	false
2020-04-08T18:00Z	1.881	false
2020-04-08T17:45Z	1.88	false
2020-04-08T17:30Z	1.877	false
2020-04-08T17:15Z	1.871	false
2020-04-08T17:00Z	1.871	false
2020-04-08T16:45Z	1.858	false
2020-04-08T16:30Z	1.864	false
2020-04-08T16:15Z	1.856	false
2020-04-08T16:00Z	1.849	false
2020-04-08T15:45Z	1.849	false
2020-04-08T15:30Z	1.843	false
2020-04-08T15:15Z	1.841	false
2020-04-08T15:00Z	1.839	false
2020-04-08T14:45Z	1.842	false
2020-04-08T14:30Z	1.838	false
2020-04-08T14:15Z	1.837	false
2020-04-08T14:00Z	1.836	false
2020-04-08T13:45Z	1.832	false
2020-04-08T13:30Z	1.833	false
2020-04-08T13:15Z	1.831	false
2020-04-08T13:00Z	1.828	false
2020-04-08T12:45Z	1.829	false
2020-04-08T12:30Z	1.827	false
2020-04-08T12:15Z	1.828	false
2020-04-08T12:00Z	1.824	false
2020-04-08T11:45Z	1.827	false
2020-04-08T11:30Z	1.825	false
2020-04-08T11:15Z	1.827	false
2020-04-08T11:00Z	1.82	false
2020-04-08T10:45Z	1.817	false
2020-04-08T10:30Z	1.82	false
2020-04-08T10:15Z	1.817	false
2020-04-08T10:00Z	1.817	false
2020-04-08T09:45Z	1.813	false
2020-04-08T09:30Z	1.804	false
2020-04-08T09:15Z	1.809	false
2020-04-08T09:00Z	1.798	false
2020-04-08T08:45Z	1.796	false
2020-04-08T08:30Z	1.8	false
2020-04-08T08:15Z	1.8	false
2020-04-08T08:00Z	1.804	false
2020-04-08T07:45Z	1.8	false
2020-04-08T07:30Z	1.801	false
2020-04-08T07:15Z	1.803	false
2020-04-08T07:00Z	1.8	false
2020-04-08T06:45Z	1.802	false
2020-04-08T06:30Z	1.803	false
2020-04-08T06:15Z	1.806	false
2020-04-08T06:00Z	1.799	false
2020-04-08T05:45Z	1.803	false
2020-04-08T05:30Z	1.808	false
2020-04-08T05:15Z	1.808	false
2020-04-08T05:00Z	1.806	false
2020-04-08T04:45Z	1.807	false
2020-04-08T04:30Z	1.81	false
2020-04-08T04:15Z	1.806	false
2020-04-08T04:00Z	1.813	false
2020-04-08T03:45Z	1.809	false
2020-04-08T03:30Z	1.816	false
2020-04-08T03:15Z	1.814	false
2020-04-08T03:00Z	1.811	false
2020-04-08T02:45Z	1.818	false
2020-04-08T02:30Z	1.818	false
2020-04-08T02:15Z	1.818	false
2020-04-08T02:00Z	1.822	false
2020-04-08T01:45Z	1.826	false
2020-04-08T01:30Z	1.822	false
2020-04-08T01:15Z	1.821	false
2020-04-08T01:00Z	1.824	false
2020-04-08T00:45Z	1.823	false
2020-04-08T00:30Z	1.823	false
2020-04-08T00:15Z	1.824	false
2020-04-08T00:00Z	1.831	false
2020-04-07T23:45Z	1.828	false
2020-04-07T23:30Z	1.824	false
2020-04-07T23:15Z	1.826	false
2020-04-07T23:00Z	1.832	false
2020-04-07T22:45Z	1.838	false
2020-04-07T22:30Z	1.827	false
2020-04-07T22:15Z	1.842	false
2020-04-07T22:00Z	1.841	false
2020-04-07T21:45Z	1.84	false
2020-04-07T21:30Z	1.843	false
2020-04-07T21:15Z	1.845	false
2020-04-07T21:00Z	1.847	false
2020-04-07T20:45Z	1.849	false
2020-04-07T20:30Z	1.854	false
2020-04-07T20:15Z	1.852	false
2020-04-07T20:00Z	1.855	false
2020-04-07T19:45Z	1.857	false
2020-04-07T19:30Z	1.859	false
2020-04-07T19:15Z	1.865	false
2020-04-07T19:00Z	1.866	false
2020-04-07T18:45Z	1.872	false
2020-04-07T18:30Z	1.873	false
2020-04-07T18:15Z	1.875	false
2020-04-07T18:00Z	1.87	false
2020-04-07T17:45Z	1.866	false
2020-04-07T17:30Z	1.866	false
2020-04-07T17:15Z	1.866	false
2020-04-07T17:00Z	1.863	false
2020-04-07T16:45Z	1.857	false
2020-04-07T16:30Z	1.852	false
2020-04-07T16:15Z	1.846	false
2020-04-07T16:00Z	1.849	false
2020-04-07T15:45Z	1.841	false
2020-04-07T15:30Z	1.841	false
2020-04-07T15:15Z	1.842	false
2020-04-07T15:00Z	1.835	false
2020-04-07T14:45Z	1.841	false
2020-04-07T14:30Z	1.839	false
2020-04-07T14:15Z	1.836	false
2020-04-07T14:00Z	1.839	false
2020-04-07T13:45Z	1.836	false
2020-04-07T13:30Z	1.831	false
2020-04-07T13:15Z	1.834	false
2020-04-07T13:00Z	1.829	false
2020-04-07T12:45Z	1.834	false
2020-04-07T12:30Z	1.829	false
2020-04-07T12:15Z	1.832	false
2020-04-07T12:00Z	1.836	false
2020-04-07T11:45Z	1.826	false
2020-04-07T11:30Z	1.828	false
2020-04-07T11:15Z	1.832	false
2020-04-07T11:00Z	1.835	false
2020-04-07T10:45Z	1.833	false
2020-04-07T10:30Z	1.838	false
2020-04-07T10:15Z	1.833	false
2020-04-07T10:00Z	1.83	false
2020-04-07T09:45Z	1.832	false
2020-04-07T09:30Z	1.831	false
2020-04-07T09:15Z	1.838	false
2020-04-07T09:00Z	1.832	false
2020-04-07T08:45Z	1.83	false
2020-04-07T08:30Z	1.831	false
2020-04-07T08:15Z	1.831	false
2020-04-07T08:00Z	1.83	false
2020-04-07T07:45Z	1.833	false
2020-04-07T07:30Z	1.835	false
2020-04-07T07:15Z	1.833	false
2020-04-07T07:00Z	1.828	false
2020-04-07T06:45Z	1.829	false
2020-04-07T06:30Z	1.829	false
2020-04-07T06:15Z	1.829	false
2020-04-07T06:00Z	1.828	false
2020-04-07T05:45Z	1.829	false
2020-04-07T05:30Z	1.831	false
2020-04-07T05:15Z	1.827	false
2020-04-07T05:00Z	1.829	false
2020-04-07T04:45Z	1.828	false
2020-04-07T04:30Z	1.824	false
2020-04-07T04:15Z	1.824	false
2020-04-07T04:00Z	1.83	false
2020-04-07T03:45Z	1.83	false
2020-04-07T03:30Z	1.825	false
2020-04-07T03:15Z	1.827	false
2020-04-07T03:00Z	1.825	false
2020-04-07T02:45Z	1.83	false
2020-04-07T02:30Z	1.823	false
2020-04-07T02:15Z	1.827	false
2020-04-07T02:00Z	1.82	false
2020-04-07T01:45Z	1.821	false
2020-04-07T01:30Z	1.819	false
2020-04-07T01:15Z	1.822	false
2020-04-07T01:00Z	1.823	false
2020-04-07T00:45Z	1.824	false
2020-04-07T00:30Z	1.821	false
2020-04-07T00:15Z	1.817	false
2020-04-07T00:00Z	1.825	false
2020-04-06T23:45Z	1.82	false
2020-04-06T23:30Z	1.82	false
2020-04-06T23:15Z	1.825	false
2020-04-06T23:00Z	1.822	false
2020-04-06T22:45Z	1.82	false
2020-04-06T22:30Z	1.815	false
2020-04-06T22:15Z	1.819	false
2020-04-06T22:00Z	1.822	false
2020-04-06T21:45Z	1.82	false
2020-04-06T21:30Z	1.821	false
2020-04-06T21:15Z	1.824	false
2020-04-06T21:00Z	1.823	false
2020-04-06T20:45Z	1.826	false
2020-04-06T20:30Z	1.829	false
2020-04-06T20:15Z	1.833	false
2020-04-06T20:00Z	1.832	false
2020-04-06T19:45Z	1.832	false
2020-04-06T19:30Z	1.838	false
2020-04-06T19:15Z	1.838	false
2020-04-06T19:00Z	1.84	false
2020-04-06T18:45Z	1.846	false
2020-04-06T18:30Z	1.847	false
2020-04-06T18:15Z	1.852	false
2020-04-06T18:00Z	1.852	false
2020-04-06T17:45Z	1.843	false
2020-04-06T17:30Z	1.847	false
2020-04-06T17:15Z	1.849	false
2020-04-06T17:00Z	1.843	false
2020-04-06T16:45Z	1.844	false
2020-04-06T16:30Z	1.843	false
2020-04-06T16:15Z	1.837	false
2020-04-06T16:00Z	1.835	false
2020-04-06T15:45Z	1.841	false
2020-04-06T15:30Z	1.833	false
2020-04-06T15:15Z	1.826	false
2020-04-06T15:00Z	1.829	false
2020-04-06T14:45Z	1.828	false
2020-04-06T14:30Z	1.83	false
2020-04-06T14:15Z	1.828	false
2020-04-06T14:00Z	1.836	false
2020-04-06T13:45Z	1.854	false
2020-04-06T13:30Z	1.865	false
2020-04-06T13:15Z	1.865	false
2020-04-06T13:00Z	1.865	false
2020-04-06T12:45Z	1.864	false
2020-04-06T12:30Z	1.865	false
2020-04-06T12:15Z	1.87	false
2020-04-06T12:00Z	1.87	false
2020-04-06T11:45Z	1.871	false
2020-04-06T11:30Z	1.866	false
2020-04-06T11:15Z	1.869	false
2020-04-06T11:00Z	1.873	false
2020-04-06T10:45Z	1.869	false
2020-04-06T10:30Z	1.863	false
2020-04-06T10:15Z	1.872	false
2020-04-06T10:00Z	1.868	false
2020-04-06T09:45Z	1.867	false
2020-04-06T09:30Z	1.872	false
2020-04-06T09:15Z	1.87	false
2020-04-06T09:00Z	1.874	false
2020-04-06T08:45Z	1.867	false
2020-04-06T08:30Z	1.872	false
2020-04-06T08:15Z	1.868	false
2020-04-06T08:00Z	1.873	false
2020-04-06T07:45Z	1.869	false
2020-04-06T07:30Z	1.868	false
2020-04-06T07:15Z	1.867	false
2020-04-06T07:00Z	1.865	false
2020-04-06T06:45Z	1.863	false
2020-04-06T06:30Z	1.868	false
2020-04-06T06:15Z	1.875	false
2020-04-06T06:00Z	1.872	false
2020-04-06T05:45Z	1.869	false
2020-04-06T05:30Z	1.869	false
2020-04-06T05:15Z	1.871	false
2020-04-06T05:00Z	1.871	false
2020-04-06T04:45Z	1.88	false
2020-04-06T04:30Z	1.872	false
2020-04-06T04:15Z	1.866	false
2020-04-06T04:00Z	1.87	false
2020-04-06T03:45Z	1.875	false
2020-04-06T03:30Z	1.874	false
2020-04-06T03:15Z	1.873	false
2020-04-06T03:00Z	1.872	false
2020-04-06T02:45Z	1.874	false
2020-04-06T02:30Z	1.875	false
2020-04-06T02:15Z	1.874	false
2020-04-06T02:00Z	1.876	false
2020-04-06T01:45Z	1.875	false
2020-04-06T01:30Z	1.876	false
2020-04-06T01:15Z	1.88	false
2020-04-06T01:00Z	1.873	false
2020-04-06T00:45Z	1.877	false
2020-04-06T00:30Z	1.877	false
2020-04-06T00:15Z	1.876	false
2020-04-06T00:00Z	1.879	false
2020-04-05T23:45Z	1.874	false
2020-04-05T23:30Z	1.879	false
2020-04-05T23:15Z	1.88	false
2020-04-05T23:00Z	1.877	false
2020-04-05T22:45Z	1.879	false
2020-04-05T22:30Z	1.879	false
2020-04-05T22:15Z	1.88	false
2020-04-05T22:00Z	1.881	false
2020-04-05T21:45Z	1.877	false
2020-04-05T21:30Z	1.883	false
2020-04-05T21:15Z	1.876	false
2020-04-05T21:00Z	1.881	false
2020-04-05T20:45Z	1.88	false
2020-04-05T20:30Z	1.878	false
2020-04-05T20:15Z	1.88	false
2020-04-05T20:00Z	1.877	false
2020-04-05T19:45Z	1.877	false
2020-04-05T19:30Z	1.874	false
2020-04-05T19:15Z	1.875	false
2020-04-05T19:00Z	1.875	false
2020-04-05T18:45Z	1.878	false
2020-04-05T18:30Z	1.872	false
2020-04-05T18:15Z	1.872	false
2020-04-05T18:00Z	1.87	false
2020-04-05T17:45Z	1.875	false
2020-04-05T17:30Z	1.87	false
2020-04-05T17:15Z	1.869	false
2020-04-05T17:00Z	1.865	false
2020-04-05T16:45Z	1.872	false
2020-04-05T16:30Z	1.863	false
2020-04-05T16:15Z	1.861	false
2020-04-05T16:00Z	1.863	false
2020-04-05T15:45Z	1.866	false
2020-04-05T15:30Z	1.863	false
2020-04-05T15:15Z	1.862	false
2020-04-05T15:00Z	1.859	false
2020-04-05T14:45Z	1.859	false
2020-04-05T14:30Z	1.861	false
2020-04-05T14:15Z	1.857	false
2020-04-05T14:00Z	1.862	false
2020-04-05T13:45Z	1.859	false
2020-04-05T13:30Z	1.857	false
2020-04-05T13:15Z	1.856	false
2020-04-05T13:00Z	1.851	false
2020-04-05T12:45Z	1.856	false
2020-04-05T12:30Z	1.852	false
2020-04-05T12:15Z	1.855	false
2020-04-05T12:00Z	1.859	false
2020-04-05T11:45Z	1.86	false
2020-04-05T11:30Z	1.849	false
2020-04-05T11:15Z	1.856	false
2020-04-05T11:00Z	1.852	false
2020-04-05T10:45Z	1.849	false
2020-04-05T10:30Z	1.854	false
2020-04-05T10:15Z	1.848	false
2020-04-05T10:00Z	1.855	false
2020-04-05T09:45Z	1.857	false
2020-04-05T09:30Z	1.87	false
2020-04-05T09:15Z	1.873	false
2020-04-05T09:00Z	1.867	false
2020-04-05T08:45Z	1.869	false
2020-04-05T08:30Z	1.866	false
2020-04-05T08:15Z	1.859	false
2020-04-05T08:00Z	1.861	false
2020-04-05T07:45Z	1.861	false
2020-04-05T07:30Z	1.861	false
2020-04-05T07:15Z	1.858	false
2020-04-05T07:00Z	1.865	false
2020-04-05T06:45Z	1.864	false
2020-04-05T06:30Z	1.862	false
2020-04-05T06:15Z	1.866	false
2020-04-05T06:00Z	1.865	false
2020-04-05T05:45Z	1.867	false
2020-04-05T05:30Z	1.867	false
2020-04-05T05:15Z	1.869	false
2020-04-05T05:00Z	1.861	false
2020-04-05T04:45Z	1.868	false
2020-04-05T04:30Z	1.866	false
2020-04-05T04:15Z	1.867	false
2020-04-05T04:00Z	1.865	false
2020-04-05T03:45Z	1.871	false
2020-04-05T03:30Z	1.867	false
2020-04-05T03:15Z	1.876	false
2020-04-05T03:00Z	1.871	false
2020-04-05T02:45Z	1.872	false
2020-04-05T02:30Z	1.876	false
2020-04-05T02:15Z	1.871	false
2020-04-05T02:00Z	1.878	false
2020-04-05T01:45Z	1.878	false
2020-04-05T01:30Z	1.88	false
2020-04-05T01:15Z	1.875	false
2020-04-05T01:00Z	1.878	false
2020-04-05T00:45Z	1.871	false
2020-04-05T00:30Z	1.877	false
2020-04-05T00:15Z	1.876	false
2020-04-05T00:00Z	1.88	false
2020-04-04T23:45Z	1.876	false
2020-04-04T23:30Z	1.877	false
2020-04-04T23:15Z	1.877	false
2020-04-04T23:00Z	1.883	false
2020-04-04T22:45Z	1.884	false
2020-04-04T22:30Z	1.882	false
2020-04-04T22:15Z	1.886	false
2020-04-04T22:00Z	1.881	false
2020-04-04T21:45Z	1.882	false
2020-04-04T21:30Z	1.885	false
2020-04-04T21:15Z	1.887	false
2020-04-04T21:00Z	1.885	false
2020-04-04T20:45Z	1.881	false
2020-04-04T20:30Z	1.889	false
2020-04-04T20:15Z	1.887	false
2020-04-04T20:00Z	1.885	false
2020-04-04T19:45Z	1.893	false
2020-04-04T19:30Z	1.884	false
2020-04-04T19:15Z	1.888	false
2020-04-04T19:00Z	1.895	false
2020-04-04T18:45Z	1.887	false
2020-04-04T18:30Z	1.888	false
2020-04-04T18:15Z	1.886	false
2020-04-04T18:00Z	1.888	false
2020-04-04T17:45Z	1.899	false

Forecast data

Key information

• Station name: Northmoor Lock (downstream)
• Station ID: 7046
• River name: River Thames
• Typical range: 1.20m to 3.00m
• Highest level on record: 3.88m on 29 November 2012
• Site datum: 59.26mAOD (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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