River level River Avon at Salisbury Harnham Bridge

Flooding is possible - Be prepared

The latest information indicates flooding is possible - Take action.

Check for flood warnings in this area

Latest recorded level 0.97m at 4:00am Saturday 18 January 2020.

River levels at this location in the last 5 days

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• Measured level
• When the water level reaches 0.94m here, minor flooding is possible in this area
• Highest recorded level. Hide
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Observed data

DateTime	Value	Error
2020-01-18T04:00Z	0.965	false
2020-01-18T03:45Z	0.973	false
2020-01-18T03:30Z	0.967	false
2020-01-18T03:15Z	0.976	false
2020-01-18T03:00Z	0.966	false
2020-01-18T02:45Z	0.973	false
2020-01-18T02:30Z	0.979	false
2020-01-18T02:15Z	0.976	false
2020-01-18T02:00Z	0.973	false
2020-01-18T01:45Z	0.982	false
2020-01-18T01:30Z	0.977	false
2020-01-18T01:15Z	0.978	false
2020-01-18T01:00Z	0.986	false
2020-01-18T00:45Z	0.986	false
2020-01-18T00:30Z	0.981	false
2020-01-18T00:15Z	0.982	false
2020-01-18T00:00Z	0.985	false
2020-01-17T23:45Z	0.986	false
2020-01-17T23:30Z	0.986	false
2020-01-17T23:15Z	0.987	false
2020-01-17T23:00Z	0.991	false
2020-01-17T22:45Z	0.992	false
2020-01-17T22:30Z	0.988	false
2020-01-17T22:15Z	0.993	false
2020-01-17T22:00Z	0.991	false
2020-01-17T21:45Z	0.995	false
2020-01-17T21:30Z	0.991	false
2020-01-17T21:15Z	0.994	false
2020-01-17T21:00Z	0.998	false
2020-01-17T20:45Z	0.991	false
2020-01-17T20:30Z	0.999	false
2020-01-17T20:15Z	0.994	false
2020-01-17T20:00Z	1	false
2020-01-17T19:45Z	0.998	false
2020-01-17T19:30Z	0.996	false
2020-01-17T19:15Z	1.001	false
2020-01-17T19:00Z	1.002	false
2020-01-17T18:45Z	1.002	false
2020-01-17T18:30Z	0.999	false
2020-01-17T18:15Z	0.998	false
2020-01-17T18:00Z	1.006	false
2020-01-17T17:45Z	1.001	false
2020-01-17T17:30Z	1.004	false
2020-01-17T17:15Z	1.005	false
2020-01-17T17:00Z	1.008	false
2020-01-17T16:45Z	1.006	false
2020-01-17T16:30Z	1.007	false
2020-01-17T16:15Z	1.01	false
2020-01-17T16:00Z	1.003	false
2020-01-17T15:45Z	1.005	false
2020-01-17T15:30Z	1.009	false
2020-01-17T15:15Z	1.01	false
2020-01-17T15:00Z	1.008	false
2020-01-17T14:45Z	1.013	false
2020-01-17T14:30Z	1.012	false
2020-01-17T14:15Z	1.01	false
2020-01-17T14:00Z	1.01	false
2020-01-17T13:45Z	1.007	false
2020-01-17T13:30Z	1.012	false
2020-01-17T13:15Z	1.008	false
2020-01-17T13:00Z	1.007	false
2020-01-17T12:45Z	1	false
2020-01-17T12:30Z	1.005	false
2020-01-17T12:15Z	1.005	false
2020-01-17T12:00Z	1.008	false
2020-01-17T11:45Z	1.011	false
2020-01-17T11:30Z	1.007	false
2020-01-17T11:15Z	1.008	false
2020-01-17T11:00Z	1.009	false
2020-01-17T10:45Z	1.015	false
2020-01-17T10:30Z	1.005	false
2020-01-17T10:15Z	1.009	false
2020-01-17T10:00Z	1.012	false
2020-01-17T09:45Z	1.007	false
2020-01-17T09:30Z	1.01	false
2020-01-17T09:15Z	1.012	false
2020-01-17T09:00Z	1.011	false
2020-01-17T08:45Z	1.009	false
2020-01-17T08:30Z	1.012	false
2020-01-17T08:15Z	1.012	false
2020-01-17T08:00Z	1.012	false
2020-01-17T07:45Z	1.011	false
2020-01-17T07:30Z	1.013	false
2020-01-17T07:15Z	1.014	false
2020-01-17T07:00Z	1.009	false
2020-01-17T06:45Z	1.011	false
2020-01-17T06:30Z	1.015	false
2020-01-17T06:15Z	1.007	false
2020-01-17T06:00Z	1.017	false
2020-01-17T05:45Z	1.004	false
2020-01-17T05:30Z	1.012	false
2020-01-17T05:15Z	1.01	false
2020-01-17T05:00Z	1.007	false
2020-01-17T04:45Z	1.012	false
2020-01-17T04:30Z	1.009	false
2020-01-17T04:15Z	1.011	false
2020-01-17T04:00Z	1.006	false
2020-01-17T03:45Z	1.008	false
2020-01-17T03:30Z	1.004	false
2020-01-17T03:15Z	1	false
2020-01-17T03:00Z	1.003	false
2020-01-17T02:45Z	0.997	false
2020-01-17T02:30Z	0.997	false
2020-01-17T02:15Z	0.996	false
2020-01-17T02:00Z	1.001	false
2020-01-17T01:45Z	0.997	false
2020-01-17T01:30Z	1.001	false
2020-01-17T01:15Z	1.001	false
2020-01-17T01:00Z	0.999	false
2020-01-17T00:45Z	0.999	false
2020-01-17T00:30Z	1.002	false
2020-01-17T00:15Z	0.999	false
2020-01-17T00:00Z	1.001	false
2020-01-16T23:45Z	1.001	false
2020-01-16T23:30Z	1	false
2020-01-16T23:15Z	0.999	false
2020-01-16T23:00Z	0.999	false
2020-01-16T22:45Z	0.998	false
2020-01-16T22:30Z	1.002	false
2020-01-16T22:15Z	1.002	false
2020-01-16T22:00Z	1.005	false
2020-01-16T21:45Z	1.002	false
2020-01-16T21:30Z	1.007	false
2020-01-16T21:15Z	1.009	false
2020-01-16T21:00Z	1.014	false
2020-01-16T20:45Z	1.015	false
2020-01-16T20:30Z	1.019	false
2020-01-16T20:15Z	1.014	false
2020-01-16T20:00Z	1.022	false
2020-01-16T19:45Z	1.028	false
2020-01-16T19:30Z	1.026	false
2020-01-16T19:15Z	1.021	false
2020-01-16T19:00Z	1.025	false
2020-01-16T18:45Z	1.024	false
2020-01-16T18:30Z	1.01	false
2020-01-16T18:15Z	1.01	false
2020-01-16T18:00Z	1.011	false
2020-01-16T17:45Z	1.008	false
2020-01-16T17:30Z	1.002	false
2020-01-16T17:15Z	1.005	false
2020-01-16T17:00Z	1.006	false
2020-01-16T16:45Z	1.009	false
2020-01-16T16:30Z	1.008	false
2020-01-16T16:15Z	1.008	false
2020-01-16T16:00Z	1.01	false
2020-01-16T15:45Z	1.013	false
2020-01-16T15:30Z	1.016	false
2020-01-16T15:15Z	1.02	false
2020-01-16T15:00Z	1.016	false
2020-01-16T14:45Z	1.018	false
2020-01-16T14:30Z	1.021	false
2020-01-16T14:15Z	1.017	false
2020-01-16T14:00Z	1.018	false
2020-01-16T13:45Z	1.017	false
2020-01-16T13:30Z	1.019	false
2020-01-16T13:15Z	1.018	false
2020-01-16T13:00Z	1.023	false
2020-01-16T12:45Z	1.022	false
2020-01-16T12:30Z	1.018	false
2020-01-16T12:15Z	1.021	false
2020-01-16T12:00Z	1.024	false
2020-01-16T11:45Z	1.026	false
2020-01-16T11:30Z	1.018	false
2020-01-16T11:15Z	1.019	false
2020-01-16T11:00Z	1.022	false
2020-01-16T10:45Z	1.026	false
2020-01-16T10:30Z	1.018	false
2020-01-16T10:15Z	1.013	false
2020-01-16T10:00Z	1.018	false
2020-01-16T09:45Z	1.018	false
2020-01-16T09:30Z	1.019	false
2020-01-16T09:15Z	1.016	false
2020-01-16T09:00Z	1.019	false
2020-01-16T08:45Z	1.013	false
2020-01-16T08:30Z	1.019	false
2020-01-16T08:15Z	1.014	false
2020-01-16T08:00Z	1.012	false
2020-01-16T07:45Z	1.015	false
2020-01-16T07:30Z	1.011	false
2020-01-16T07:15Z	1.004	false
2020-01-16T07:00Z	1.005	false
2020-01-16T06:45Z	1.009	false
2020-01-16T06:30Z	1.008	false
2020-01-16T06:15Z	1.003	false
2020-01-16T06:00Z	1.005	false
2020-01-16T05:45Z	0.999	false
2020-01-16T05:30Z	0.999	false
2020-01-16T05:15Z	0.993	false
2020-01-16T05:00Z	1	false
2020-01-16T04:45Z	0.999	false
2020-01-16T04:30Z	0.997	false
2020-01-16T04:15Z	0.989	false
2020-01-16T04:00Z	0.999	false
2020-01-16T03:45Z	0.99	false
2020-01-16T03:30Z	0.996	false
2020-01-16T03:15Z	0.995	false
2020-01-16T03:00Z	0.995	false
2020-01-16T02:45Z	0.992	false
2020-01-16T02:30Z	0.992	false
2020-01-16T02:15Z	0.989	false
2020-01-16T02:00Z	0.988	false
2020-01-16T01:45Z	0.982	false
2020-01-16T01:30Z	0.98	false
2020-01-16T01:15Z	0.982	false
2020-01-16T01:00Z	0.985	false
2020-01-16T00:45Z	0.98	false
2020-01-16T00:30Z	0.984	false
2020-01-16T00:15Z	0.981	false
2020-01-16T00:00Z	0.976	false
2020-01-15T23:45Z	0.976	false
2020-01-15T23:30Z	0.985	false
2020-01-15T23:15Z	0.983	false
2020-01-15T23:00Z	0.978	false
2020-01-15T22:45Z	0.974	false
2020-01-15T22:30Z	0.973	false
2020-01-15T22:15Z	0.975	false
2020-01-15T22:00Z	0.973	false
2020-01-15T21:45Z	0.971	false
2020-01-15T21:30Z	0.975	false
2020-01-15T21:15Z	0.973	false
2020-01-15T21:00Z	0.971	false
2020-01-15T20:45Z	0.971	false
2020-01-15T20:30Z	0.966	false
2020-01-15T20:15Z	0.973	false
2020-01-15T20:00Z	0.963	false
2020-01-15T19:45Z	0.966	false
2020-01-15T19:30Z	0.968	false
2020-01-15T19:15Z	0.968	false
2020-01-15T19:00Z	0.969	false
2020-01-15T18:45Z	0.962	false
2020-01-15T18:30Z	0.965	false
2020-01-15T18:15Z	0.964	false
2020-01-15T18:00Z	0.962	false
2020-01-15T17:45Z	0.967	false
2020-01-15T17:30Z	0.961	false
2020-01-15T17:15Z	0.962	false
2020-01-15T17:00Z	0.96	false
2020-01-15T16:45Z	0.962	false
2020-01-15T16:30Z	0.963	false
2020-01-15T16:15Z	0.96	false
2020-01-15T16:00Z	0.961	false
2020-01-15T15:45Z	0.958	false
2020-01-15T15:30Z	0.96	false
2020-01-15T15:15Z	0.961	false
2020-01-15T15:00Z	0.959	false
2020-01-15T14:45Z	0.954	false
2020-01-15T14:30Z	0.959	false
2020-01-15T14:15Z	0.953	false
2020-01-15T14:00Z	0.947	false
2020-01-15T13:45Z	0.952	false
2020-01-15T13:30Z	0.951	false
2020-01-15T13:15Z	0.951	false
2020-01-15T13:00Z	0.949	false
2020-01-15T12:45Z	0.953	false
2020-01-15T12:30Z	0.95	false
2020-01-15T12:15Z	0.947	false
2020-01-15T12:00Z	0.947	false
2020-01-15T11:45Z	0.947	false
2020-01-15T11:30Z	0.95	false
2020-01-15T11:15Z	0.955	false
2020-01-15T11:00Z	0.947	false
2020-01-15T10:45Z	0.948	false
2020-01-15T10:30Z	0.949	false
2020-01-15T10:15Z	0.949	false
2020-01-15T10:00Z	0.948	false
2020-01-15T09:45Z	0.948	false
2020-01-15T09:30Z	0.949	false
2020-01-15T09:15Z	0.948	false
2020-01-15T09:00Z	0.946	false
2020-01-15T08:45Z	0.949	false
2020-01-15T08:30Z	0.947	false
2020-01-15T08:15Z	0.947	false
2020-01-15T08:00Z	0.949	false
2020-01-15T07:45Z	0.945	false
2020-01-15T07:30Z	0.946	false
2020-01-15T07:15Z	0.95	false
2020-01-15T07:00Z	0.948	false
2020-01-15T06:45Z	0.949	false
2020-01-15T06:30Z	0.948	false
2020-01-15T06:15Z	0.944	false
2020-01-15T06:00Z	0.948	false
2020-01-15T05:45Z	0.944	false
2020-01-15T05:30Z	0.942	false
2020-01-15T05:15Z	0.941	false
2020-01-15T05:00Z	0.94	false
2020-01-15T04:45Z	0.944	false
2020-01-15T04:30Z	0.938	false
2020-01-15T04:15Z	0.942	false
2020-01-15T04:00Z	0.939	false
2020-01-15T03:45Z	0.939	false
2020-01-15T03:30Z	0.939	false
2020-01-15T03:15Z	0.936	false
2020-01-15T03:00Z	0.933	false
2020-01-15T02:45Z	0.936	false
2020-01-15T02:30Z	0.933	false
2020-01-15T02:15Z	0.932	false
2020-01-15T02:00Z	0.927	false
2020-01-15T01:45Z	0.921	false
2020-01-15T01:30Z	0.917	false
2020-01-15T01:15Z	0.924	false
2020-01-15T01:00Z	0.911	false
2020-01-15T00:45Z	0.913	false
2020-01-15T00:30Z	0.91	false
2020-01-15T00:15Z	0.905	false
2020-01-15T00:00Z	0.906	false
2020-01-14T23:45Z	0.9	false
2020-01-14T23:30Z	0.901	false
2020-01-14T23:15Z	0.894	false
2020-01-14T23:00Z	0.891	false
2020-01-14T22:45Z	0.892	false
2020-01-14T22:30Z	0.885	false
2020-01-14T22:15Z	0.886	false
2020-01-14T22:00Z	0.886	false
2020-01-14T21:45Z	0.884	false
2020-01-14T21:30Z	0.887	false
2020-01-14T21:15Z	0.883	false
2020-01-14T21:00Z	0.878	false
2020-01-14T20:45Z	0.882	false
2020-01-14T20:30Z	0.879	false
2020-01-14T20:15Z	0.881	false
2020-01-14T20:00Z	0.872	false
2020-01-14T19:45Z	0.867	false
2020-01-14T19:30Z	0.868	false
2020-01-14T19:15Z	0.864	false
2020-01-14T19:00Z	0.858	false
2020-01-14T18:45Z	0.863	false
2020-01-14T18:30Z	0.864	false
2020-01-14T18:15Z	0.861	false
2020-01-14T18:00Z	0.856	false
2020-01-14T17:45Z	0.859	false
2020-01-14T17:30Z	0.851	false
2020-01-14T17:15Z	0.848	false
2020-01-14T17:00Z	0.848	false
2020-01-14T16:45Z	0.844	false
2020-01-14T16:30Z	0.844	false
2020-01-14T16:15Z	0.842	false
2020-01-14T16:00Z	0.838	false
2020-01-14T15:45Z	0.842	false
2020-01-14T15:30Z	0.84	false
2020-01-14T15:15Z	0.836	false
2020-01-14T15:00Z	0.825	false
2020-01-14T14:45Z	0.826	false
2020-01-14T14:30Z	0.83	false
2020-01-14T14:15Z	0.822	false
2020-01-14T14:00Z	0.829	false
2020-01-14T13:45Z	0.826	false
2020-01-14T13:30Z	0.823	false
2020-01-14T13:15Z	0.823	false
2020-01-14T13:00Z	0.821	false
2020-01-14T12:45Z	0.823	false
2020-01-14T12:30Z	0.82	false
2020-01-14T12:15Z	0.813	false
2020-01-14T12:00Z	0.817	false
2020-01-14T11:45Z	0.811	false
2020-01-14T11:30Z	0.8	false
2020-01-14T11:15Z	0.808	false
2020-01-14T11:00Z	0.804	false
2020-01-14T10:45Z	0.802	false
2020-01-14T10:30Z	0.806	false
2020-01-14T10:15Z	0.803	false
2020-01-14T10:00Z	0.797	false
2020-01-14T09:45Z	0.799	false
2020-01-14T09:30Z	0.798	false
2020-01-14T09:15Z	0.798	false
2020-01-14T09:00Z	0.799	false
2020-01-14T08:45Z	0.795	false
2020-01-14T08:30Z	0.795	false
2020-01-14T08:15Z	0.793	false
2020-01-14T08:00Z	0.794	false
2020-01-14T07:45Z	0.792	false
2020-01-14T07:30Z	0.797	false
2020-01-14T07:15Z	0.796	false
2020-01-14T07:00Z	0.793	false
2020-01-14T06:45Z	0.788	false
2020-01-14T06:30Z	0.788	false
2020-01-14T06:15Z	0.792	false
2020-01-14T06:00Z	0.79	false
2020-01-14T05:45Z	0.79	false
2020-01-14T05:30Z	0.791	false
2020-01-14T05:15Z	0.786	false
2020-01-14T05:00Z	0.787	false
2020-01-14T04:45Z	0.784	false
2020-01-14T04:30Z	0.783	false
2020-01-14T04:15Z	0.785	false
2020-01-14T04:00Z	0.781	false
2020-01-14T03:45Z	0.781	false
2020-01-14T03:30Z	0.783	false
2020-01-14T03:15Z	0.785	false
2020-01-14T03:00Z	0.781	false
2020-01-14T02:45Z	0.783	false
2020-01-14T02:30Z	0.782	false
2020-01-14T02:15Z	0.777	false
2020-01-14T02:00Z	0.783	false
2020-01-14T01:45Z	0.783	false
2020-01-14T01:30Z	0.782	false
2020-01-14T01:15Z	0.78	false
2020-01-14T01:00Z	0.778	false
2020-01-14T00:45Z	0.776	false
2020-01-14T00:30Z	0.777	false
2020-01-14T00:15Z	0.775	false
2020-01-14T00:00Z	0.768	false
2020-01-13T23:45Z	0.77	false
2020-01-13T23:30Z	0.774	false
2020-01-13T23:15Z	0.775	false
2020-01-13T23:00Z	0.768	false
2020-01-13T22:45Z	0.771	false
2020-01-13T22:30Z	0.768	false
2020-01-13T22:15Z	0.772	false
2020-01-13T22:00Z	0.767	false
2020-01-13T21:45Z	0.767	false
2020-01-13T21:30Z	0.768	false
2020-01-13T21:15Z	0.769	false
2020-01-13T21:00Z	0.762	false
2020-01-13T20:45Z	0.766	false
2020-01-13T20:30Z	0.766	false
2020-01-13T20:15Z	0.77	false
2020-01-13T20:00Z	0.762	false
2020-01-13T19:45Z	0.76	false
2020-01-13T19:30Z	0.753	false
2020-01-13T19:15Z	0.751	false
2020-01-13T19:00Z	0.756	false
2020-01-13T18:45Z	0.75	false
2020-01-13T18:30Z	0.748	false
2020-01-13T18:15Z	0.756	false
2020-01-13T18:00Z	0.752	false
2020-01-13T17:45Z	0.745	false
2020-01-13T17:30Z	0.749	false
2020-01-13T17:15Z	0.745	false
2020-01-13T17:00Z	0.741	false
2020-01-13T16:45Z	0.737	false
2020-01-13T16:30Z	0.736	false
2020-01-13T16:15Z	0.731	false
2020-01-13T16:00Z	0.73	false
2020-01-13T15:45Z	0.731	false
2020-01-13T15:30Z	0.732	false
2020-01-13T15:15Z	0.735	false
2020-01-13T15:00Z	0.736	false
2020-01-13T14:45Z	0.734	false
2020-01-13T14:30Z	0.733	false
2020-01-13T14:15Z	0.73	false
2020-01-13T14:00Z	0.737	false
2020-01-13T13:45Z	0.738	false
2020-01-13T13:30Z	0.737	false
2020-01-13T13:15Z	0.734	false
2020-01-13T13:00Z	0.734	false
2020-01-13T12:45Z	0.737	false
2020-01-13T12:30Z	0.735	false
2020-01-13T12:15Z	0.733	false
2020-01-13T12:00Z	0.735	false
2020-01-13T11:45Z	0.731	false
2020-01-13T11:30Z	0.732	false
2020-01-13T11:15Z	0.738	false
2020-01-13T11:00Z	0.737	false
2020-01-13T10:45Z	0.744	false
2020-01-13T10:30Z	0.737	false
2020-01-13T10:15Z	0.738	false
2020-01-13T10:00Z	0.735	false
2020-01-13T09:45Z	0.738	false
2020-01-13T09:30Z	0.734	false
2020-01-13T09:15Z	0.738	false
2020-01-13T09:00Z	0.74	false
2020-01-13T08:45Z	0.74	false
2020-01-13T08:30Z	0.736	false
2020-01-13T08:15Z	0.74	false
2020-01-13T08:00Z	0.742	false
2020-01-13T07:45Z	0.741	false
2020-01-13T07:30Z	0.738	false
2020-01-13T07:15Z	0.739	false
2020-01-13T07:00Z	0.736	false
2020-01-13T06:45Z	0.741	false
2020-01-13T06:30Z	0.737	false
2020-01-13T06:15Z	0.737	false
2020-01-13T06:00Z	0.742	false
2020-01-13T05:45Z	0.741	false
2020-01-13T05:30Z	0.741	false
2020-01-13T05:15Z	0.74	false
2020-01-13T05:00Z	0.743	false
2020-01-13T04:45Z	0.74	false
2020-01-13T04:30Z	0.738	false
2020-01-13T04:15Z	0.743	false
2020-01-13T04:00Z	0.744	false
2020-01-13T03:45Z	0.738	false
2020-01-13T03:30Z	0.744	false
2020-01-13T03:15Z	0.739	false
2020-01-13T03:00Z	0.743	false
2020-01-13T02:45Z	0.739	false
2020-01-13T02:30Z	0.743	false
2020-01-13T02:15Z	0.742	false
2020-01-13T02:00Z	0.739	false
2020-01-13T01:45Z	0.743	false
2020-01-13T01:30Z	0.741	false
2020-01-13T01:15Z	0.741	false
2020-01-13T01:00Z	0.746	false
2020-01-13T00:45Z	0.745	false
2020-01-13T00:30Z	0.742	false
2020-01-13T00:15Z	0.742	false
2020-01-13T00:00Z	0.741	false
2020-01-12T23:45Z	0.743	false
2020-01-12T23:30Z	0.739	false
2020-01-12T23:15Z	0.746	false
2020-01-12T23:00Z	0.746	false
2020-01-12T22:45Z	0.746	false
2020-01-12T22:30Z	0.745	false
2020-01-12T22:15Z	0.746	false
2020-01-12T22:00Z	0.741	false
2020-01-12T21:45Z	0.747	false
2020-01-12T21:30Z	0.744	false
2020-01-12T21:15Z	0.745	false
2020-01-12T21:00Z	0.744	false
2020-01-12T20:45Z	0.747	false
2020-01-12T20:30Z	0.747	false
2020-01-12T20:15Z	0.747	false
2020-01-12T20:00Z	0.746	false
2020-01-12T19:45Z	0.745	false
2020-01-12T19:30Z	0.742	false
2020-01-12T19:15Z	0.741	false
2020-01-12T19:00Z	0.742	false
2020-01-12T18:45Z	0.744	false
2020-01-12T18:30Z	0.746	false
2020-01-12T18:15Z	0.742	false
2020-01-12T18:00Z	0.743	false
2020-01-12T17:45Z	0.744	false
2020-01-12T17:30Z	0.747	false
2020-01-12T17:15Z	0.742	false
2020-01-12T17:00Z	0.746	false
2020-01-12T16:45Z	0.742	false
2020-01-12T16:30Z	0.747	false
2020-01-12T16:15Z	0.744	false

Forecast data

Key information

• Station name: Salisbury Harnham Bridge
• Station ID: 3375
• River name: River Avon
• Typical range: 0.29m to 0.94m
• Highest level on record: 1.39m on 09 January 2014
• Site datum: 43.49mAOD (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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