River level River Stort at Harlow Mill

Check for flood warnings in this area

Latest recorded level 0.94m at 1:00pm Saturday 4 July 2020.

River levels at this location in the last 5 days

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• Measured level
• When the water level reaches 2.02m 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
2020-07-04T12:00Z	0.938	false
2020-07-04T11:45Z	0.942	false
2020-07-04T11:30Z	0.938	false
2020-07-04T11:15Z	0.931	false
2020-07-04T11:00Z	0.93	false
2020-07-04T10:45Z	0.926	false
2020-07-04T10:30Z	0.924	false
2020-07-04T10:15Z	0.93	false
2020-07-04T10:00Z	0.935	false
2020-07-04T09:45Z	0.936	false
2020-07-04T09:30Z	0.938	false
2020-07-04T09:15Z	0.937	false
2020-07-04T09:00Z	0.94	false
2020-07-04T08:45Z	0.942	false
2020-07-04T08:30Z	0.942	false
2020-07-04T08:15Z	0.943	false
2020-07-04T08:00Z	0.943	false
2020-07-04T07:45Z	0.944	false
2020-07-04T07:30Z	0.944	false
2020-07-04T07:15Z	0.942	false
2020-07-04T07:00Z	0.946	false
2020-07-04T06:45Z	0.944	false
2020-07-04T06:30Z	0.928	false
2020-07-04T06:15Z	0.928	false
2020-07-04T06:00Z	0.928	false
2020-07-04T05:45Z	0.928	false
2020-07-04T05:30Z	0.928	false
2020-07-04T05:15Z	0.928	false
2020-07-04T05:00Z	0.928	false
2020-07-04T04:45Z	0.929	false
2020-07-04T04:30Z	0.928	false
2020-07-04T04:15Z	0.929	false
2020-07-04T04:00Z	0.929	false
2020-07-04T03:45Z	0.928	false
2020-07-04T03:30Z	0.928	false
2020-07-04T03:15Z	0.928	false
2020-07-04T03:00Z	0.928	false
2020-07-04T02:45Z	0.929	false
2020-07-04T02:30Z	0.929	false
2020-07-04T02:15Z	0.929	false
2020-07-04T02:00Z	0.929	false
2020-07-04T01:45Z	0.929	false
2020-07-04T01:30Z	0.93	false
2020-07-04T01:15Z	0.931	false
2020-07-04T01:00Z	0.932	false
2020-07-04T00:45Z	0.931	false
2020-07-04T00:30Z	0.932	false
2020-07-04T00:15Z	0.933	false
2020-07-04T00:00Z	0.935	false
2020-07-03T23:45Z	0.934	false
2020-07-03T23:30Z	0.936	false
2020-07-03T23:15Z	0.937	false
2020-07-03T23:00Z	0.939	false
2020-07-03T22:45Z	0.94	false
2020-07-03T22:30Z	0.941	false
2020-07-03T22:15Z	0.942	false
2020-07-03T22:00Z	0.942	false
2020-07-03T21:45Z	0.944	false
2020-07-03T21:30Z	0.943	false
2020-07-03T21:15Z	0.942	false
2020-07-03T21:00Z	0.938	false
2020-07-03T20:45Z	0.932	false
2020-07-03T20:30Z	0.932	false
2020-07-03T20:15Z	0.932	false
2020-07-03T20:00Z	0.925	false
2020-07-03T19:45Z	0.94	false
2020-07-03T19:30Z	0.942	false
2020-07-03T19:15Z	0.943	false
2020-07-03T19:00Z	0.945	false
2020-07-03T18:45Z	0.945	false
2020-07-03T18:30Z	0.946	false
2020-07-03T18:15Z	0.948	false
2020-07-03T18:00Z	0.95	false
2020-07-03T17:45Z	0.952	false
2020-07-03T17:30Z	0.953	false
2020-07-03T17:15Z	0.956	false
2020-07-03T17:00Z	0.96	false
2020-07-03T16:45Z	0.964	false
2020-07-03T16:30Z	0.965	false
2020-07-03T16:15Z	0.969	false
2020-07-03T16:00Z	0.976	false
2020-07-03T15:45Z	0.968	false
2020-07-03T15:30Z	0.975	false
2020-07-03T15:15Z	0.974	false
2020-07-03T15:00Z	0.971	false
2020-07-03T14:45Z	0.972	false
2020-07-03T14:30Z	0.974	false
2020-07-03T14:15Z	0.978	false
2020-07-03T14:00Z	0.98	false
2020-07-03T13:45Z	0.984	false
2020-07-03T13:30Z	0.986	false
2020-07-03T13:15Z	0.989	false
2020-07-03T13:00Z	0.994	false
2020-07-03T12:45Z	0.999	false
2020-07-03T12:30Z	0.996	false
2020-07-03T12:15Z	1.003	false
2020-07-03T12:00Z	1.009	false
2020-07-03T11:45Z	1.016	false
2020-07-03T11:30Z	1.027	false
2020-07-03T11:15Z	1.027	false
2020-07-03T11:00Z	1.029	false
2020-07-03T10:45Z	1.048	false
2020-07-03T10:30Z	1.061	false
2020-07-03T10:15Z	1.066	false
2020-07-03T10:00Z	1.069	false
2020-07-03T09:45Z	1.076	false
2020-07-03T09:30Z	1.08	false
2020-07-03T09:15Z	1.084	false
2020-07-03T09:00Z	1.088	false
2020-07-03T08:45Z	1.094	false
2020-07-03T08:30Z	1.097	false
2020-07-03T08:15Z	1.1	false
2020-07-03T08:00Z	1.104	false
2020-07-03T07:45Z	1.107	false
2020-07-03T07:30Z	1.11	false
2020-07-03T07:15Z	1.114	false
2020-07-03T07:00Z	1.117	false
2020-07-03T06:45Z	1.119	false
2020-07-03T06:30Z	1.121	false
2020-07-03T06:15Z	1.124	false
2020-07-03T06:00Z	1.126	false
2020-07-03T05:45Z	1.126	false
2020-07-03T05:30Z	1.127	false
2020-07-03T05:15Z	1.127	false
2020-07-03T05:00Z	1.128	false
2020-07-03T04:45Z	1.127	false
2020-07-03T04:30Z	1.124	false
2020-07-03T04:15Z	1.121	false
2020-07-03T04:00Z	1.117	false
2020-07-03T03:45Z	1.114	false
2020-07-03T03:30Z	1.109	false
2020-07-03T03:15Z	1.101	false
2020-07-03T03:00Z	1.094	false
2020-07-03T02:45Z	1.085	false
2020-07-03T02:30Z	1.075	false
2020-07-03T02:15Z	1.064	false
2020-07-03T02:00Z	1.052	false
2020-07-03T01:45Z	1.041	false
2020-07-03T01:30Z	1.028	false
2020-07-03T01:15Z	1.017	false
2020-07-03T01:00Z	1.006	false
2020-07-03T00:45Z	0.997	false
2020-07-03T00:30Z	0.989	false
2020-07-03T00:15Z	0.982	false
2020-07-03T00:00Z	0.977	false
2020-07-02T23:45Z	0.973	false
2020-07-02T23:30Z	0.971	false
2020-07-02T23:15Z	0.97	false
2020-07-02T23:00Z	0.969	false
2020-07-02T22:45Z	0.969	false
2020-07-02T22:30Z	0.97	false
2020-07-02T22:15Z	0.971	false
2020-07-02T22:00Z	0.973	false
2020-07-02T21:45Z	0.975	false
2020-07-02T21:30Z	0.977	false
2020-07-02T21:15Z	0.978	false
2020-07-02T21:00Z	0.976	false
2020-07-02T20:45Z	0.974	false
2020-07-02T20:30Z	0.97	false
2020-07-02T20:15Z	0.966	false
2020-07-02T20:00Z	0.96	false
2020-07-02T19:45Z	0.953	false
2020-07-02T19:30Z	0.946	false
2020-07-02T19:15Z	0.935	false
2020-07-02T19:00Z	0.927	false
2020-07-02T18:45Z	0.927	false
2020-07-02T18:30Z	0.932	false
2020-07-02T18:15Z	0.922	false
2020-07-02T18:00Z	0.918	false
2020-07-02T17:45Z	0.914	false
2020-07-02T17:30Z	0.909	false
2020-07-02T17:15Z	0.904	false
2020-07-02T17:00Z	0.901	false
2020-07-02T16:45Z	0.889	false
2020-07-02T16:30Z	0.885	false
2020-07-02T16:15Z	0.881	false
2020-07-02T16:00Z	0.878	false
2020-07-02T15:45Z	0.881	false
2020-07-02T15:30Z	0.874	false
2020-07-02T15:15Z	0.867	false
2020-07-02T15:00Z	0.878	false
2020-07-02T14:45Z	0.871	false
2020-07-02T14:30Z	0.87	false
2020-07-02T14:15Z	0.868	false
2020-07-02T14:00Z	0.873	false
2020-07-02T13:45Z	0.883	false
2020-07-02T13:30Z	0.867	false
2020-07-02T13:15Z	0.872	false
2020-07-02T13:00Z	0.874	false
2020-07-02T12:45Z	0.874	false
2020-07-02T12:30Z	0.877	false
2020-07-02T12:15Z	0.885	false
2020-07-02T12:00Z	0.886	false
2020-07-02T11:45Z	0.887	false
2020-07-02T11:30Z	0.893	false
2020-07-02T11:15Z	0.897	false
2020-07-02T11:00Z	0.888	false
2020-07-02T10:45Z	0.9	false
2020-07-02T10:30Z	0.892	false
2020-07-02T10:15Z	0.881	false
2020-07-02T10:00Z	0.873	false
2020-07-02T09:45Z	0.875	false
2020-07-02T09:30Z	0.87	false
2020-07-02T09:15Z	0.869	false
2020-07-02T09:00Z	0.879	false
2020-07-02T08:45Z	0.872	false
2020-07-02T08:30Z	0.872	false
2020-07-02T08:15Z	0.873	false
2020-07-02T08:00Z	0.872	false
2020-07-02T07:45Z	0.871	false
2020-07-02T07:30Z	0.87	false
2020-07-02T07:15Z	0.87	false
2020-07-02T07:00Z	0.87	false
2020-07-02T06:45Z	0.869	false
2020-07-02T06:30Z	0.868	false
2020-07-02T06:15Z	0.867	false
2020-07-02T06:00Z	0.866	false
2020-07-02T05:45Z	0.866	false
2020-07-02T05:30Z	0.865	false
2020-07-02T05:15Z	0.865	false
2020-07-02T05:00Z	0.864	false
2020-07-02T04:45Z	0.863	false
2020-07-02T04:30Z	0.862	false
2020-07-02T04:15Z	0.861	false
2020-07-02T04:00Z	0.861	false
2020-07-02T03:45Z	0.86	false
2020-07-02T03:30Z	0.859	false
2020-07-02T03:15Z	0.859	false
2020-07-02T03:00Z	0.859	false
2020-07-02T02:45Z	0.859	false
2020-07-02T02:30Z	0.859	false
2020-07-02T02:15Z	0.859	false
2020-07-02T02:00Z	0.859	false
2020-07-02T01:45Z	0.86	false
2020-07-02T01:30Z	0.861	false
2020-07-02T01:15Z	0.862	false
2020-07-02T01:00Z	0.862	false
2020-07-02T00:45Z	0.863	false
2020-07-02T00:30Z	0.865	false
2020-07-02T00:15Z	0.866	false
2020-07-02T00:00Z	0.867	false
2020-07-01T23:45Z	0.869	false
2020-07-01T23:30Z	0.872	false
2020-07-01T23:15Z	0.873	false
2020-07-01T23:00Z	0.875	false
2020-07-01T22:45Z	0.881	false
2020-07-01T22:30Z	0.882	false
2020-07-01T22:15Z	0.878	false
2020-07-01T22:00Z	0.878	false
2020-07-01T21:45Z	0.878	false
2020-07-01T21:30Z	0.877	false
2020-07-01T21:15Z	0.881	false
2020-07-01T21:00Z	0.884	false
2020-07-01T20:45Z	0.887	false
2020-07-01T20:30Z	0.894	false
2020-07-01T20:15Z	0.896	false
2020-07-01T20:00Z	0.895	false
2020-07-01T19:45Z	0.896	false
2020-07-01T19:30Z	0.897	false
2020-07-01T19:15Z	0.898	false
2020-07-01T19:00Z	0.899	false
2020-07-01T18:45Z	0.9	false
2020-07-01T18:30Z	0.9	false
2020-07-01T18:15Z	0.901	false
2020-07-01T18:00Z	0.901	false
2020-07-01T17:45Z	0.902	false
2020-07-01T17:30Z	0.902	false
2020-07-01T17:15Z	0.903	false
2020-07-01T17:00Z	0.903	false
2020-07-01T16:45Z	0.902	false
2020-07-01T16:30Z	0.902	false
2020-07-01T16:15Z	0.901	false
2020-07-01T16:00Z	0.901	false
2020-07-01T15:45Z	0.9	false
2020-07-01T15:30Z	0.899	false
2020-07-01T15:15Z	0.897	false
2020-07-01T15:00Z	0.896	false
2020-07-01T14:45Z	0.894	false
2020-07-01T14:30Z	0.891	false
2020-07-01T14:15Z	0.889	false
2020-07-01T14:00Z	0.885	false
2020-07-01T13:45Z	0.883	false
2020-07-01T13:30Z	0.879	false
2020-07-01T13:15Z	0.874	false
2020-07-01T13:00Z	0.872	false
2020-07-01T12:45Z	0.874	false
2020-07-01T12:30Z	0.869	false
2020-07-01T12:15Z	0.874	false
2020-07-01T12:00Z	0.882	false
2020-07-01T11:45Z	0.882	false
2020-07-01T11:30Z	0.883	false
2020-07-01T11:15Z	0.882	false
2020-07-01T11:00Z	0.882	false
2020-07-01T10:45Z	0.881	false
2020-07-01T10:30Z	0.881	false
2020-07-01T10:15Z	0.881	false
2020-07-01T10:00Z	0.879	false
2020-07-01T09:45Z	0.879	false
2020-07-01T09:30Z	0.878	false
2020-07-01T09:15Z	0.878	false
2020-07-01T09:00Z	0.877	false
2020-07-01T08:45Z	0.875	false
2020-07-01T08:30Z	0.874	false
2020-07-01T08:15Z	0.873	false
2020-07-01T08:00Z	0.875	false
2020-07-01T07:45Z	0.873	false
2020-07-01T07:30Z	0.872	false
2020-07-01T07:15Z	0.868	false
2020-07-01T07:00Z	0.867	false
2020-07-01T06:45Z	0.866	false
2020-07-01T06:30Z	0.866	false
2020-07-01T06:15Z	0.865	false
2020-07-01T06:00Z	0.864	false
2020-07-01T05:45Z	0.863	false
2020-07-01T05:30Z	0.862	false
2020-07-01T05:15Z	0.862	false
2020-07-01T05:00Z	0.861	false
2020-07-01T04:45Z	0.861	false
2020-07-01T04:30Z	0.86	false
2020-07-01T04:15Z	0.86	false
2020-07-01T04:00Z	0.859	false
2020-07-01T03:45Z	0.859	false
2020-07-01T03:30Z	0.858	false
2020-07-01T03:15Z	0.858	false
2020-07-01T03:00Z	0.857	false
2020-07-01T02:45Z	0.857	false
2020-07-01T02:30Z	0.857	false
2020-07-01T02:15Z	0.856	false
2020-07-01T02:00Z	0.855	false
2020-07-01T01:45Z	0.855	false
2020-07-01T01:30Z	0.855	false
2020-07-01T01:15Z	0.854	false
2020-07-01T01:00Z	0.854	false
2020-07-01T00:45Z	0.854	false
2020-07-01T00:30Z	0.854	false
2020-07-01T00:15Z	0.854	false
2020-07-01T00:00Z	0.854	false
2020-06-30T23:45Z	0.854	false
2020-06-30T23:30Z	0.854	false
2020-06-30T23:15Z	0.854	false
2020-06-30T23:00Z	0.855	false
2020-06-30T22:45Z	0.855	false
2020-06-30T22:30Z	0.855	false
2020-06-30T22:15Z	0.856	false
2020-06-30T22:00Z	0.857	false
2020-06-30T21:45Z	0.858	false
2020-06-30T21:30Z	0.859	false
2020-06-30T21:15Z	0.86	false
2020-06-30T21:00Z	0.861	false
2020-06-30T20:45Z	0.863	false
2020-06-30T20:30Z	0.864	false
2020-06-30T20:15Z	0.865	false
2020-06-30T20:00Z	0.867	false
2020-06-30T19:45Z	0.868	false
2020-06-30T19:30Z	0.868	false
2020-06-30T19:15Z	0.867	false
2020-06-30T19:00Z	0.864	false
2020-06-30T18:45Z	0.86	false
2020-06-30T18:30Z	0.857	false
2020-06-30T18:15Z	0.853	false
2020-06-30T18:00Z	0.847	false
2020-06-30T17:45Z	0.848	false
2020-06-30T17:30Z	0.846	false
2020-06-30T17:15Z	0.845	false
2020-06-30T17:00Z	0.858	false
2020-06-30T16:45Z	0.847	false
2020-06-30T16:30Z	0.855	false
2020-06-30T16:15Z	0.857	false
2020-06-30T16:00Z	0.843	false
2020-06-30T15:45Z	0.842	false
2020-06-30T15:30Z	0.841	false
2020-06-30T15:15Z	0.84	false
2020-06-30T15:00Z	0.839	false
2020-06-30T14:45Z	0.838	false
2020-06-30T14:30Z	0.837	false
2020-06-30T14:15Z	0.835	false
2020-06-30T14:00Z	0.834	false
2020-06-30T13:45Z	0.832	false
2020-06-30T13:30Z	0.831	false
2020-06-30T13:15Z	0.829	false
2020-06-30T13:00Z	0.828	false
2020-06-30T12:45Z	0.827	false
2020-06-30T12:30Z	0.825	false
2020-06-30T12:15Z	0.825	false
2020-06-30T12:00Z	0.826	false
2020-06-30T11:45Z	0.823	false
2020-06-30T11:30Z	0.818	false
2020-06-30T11:15Z	0.826	false
2020-06-30T11:00Z	0.823	false
2020-06-30T10:45Z	0.819	false
2020-06-30T10:30Z	0.823	false
2020-06-30T10:15Z	0.824	false
2020-06-30T10:00Z	0.82	false
2020-06-30T09:45Z	0.818	false
2020-06-30T09:30Z	0.817	false
2020-06-30T09:15Z	0.816	false
2020-06-30T09:00Z	0.814	false
2020-06-30T08:45Z	0.813	false
2020-06-30T08:30Z	0.811	false
2020-06-30T08:15Z	0.81	false
2020-06-30T08:00Z	0.809	false
2020-06-30T07:45Z	0.808	false
2020-06-30T07:30Z	0.807	false
2020-06-30T07:15Z	0.805	false
2020-06-30T07:00Z	0.804	false
2020-06-30T06:45Z	0.803	false
2020-06-30T06:30Z	0.803	false
2020-06-30T06:15Z	0.803	false
2020-06-30T06:00Z	0.802	false
2020-06-30T05:45Z	0.802	false
2020-06-30T05:30Z	0.802	false
2020-06-30T05:15Z	0.802	false
2020-06-30T05:00Z	0.803	false
2020-06-30T04:45Z	0.803	false
2020-06-30T04:30Z	0.804	false
2020-06-30T04:15Z	0.806	false
2020-06-30T04:00Z	0.807	false
2020-06-30T03:45Z	0.808	false
2020-06-30T03:30Z	0.81	false
2020-06-30T03:15Z	0.812	false
2020-06-30T03:00Z	0.813	false
2020-06-30T02:45Z	0.816	false
2020-06-30T02:30Z	0.818	false
2020-06-30T02:15Z	0.82	false
2020-06-30T02:00Z	0.823	false
2020-06-30T01:45Z	0.825	false
2020-06-30T01:30Z	0.827	false
2020-06-30T01:15Z	0.831	false
2020-06-30T01:00Z	0.833	false
2020-06-30T00:45Z	0.836	false
2020-06-30T00:30Z	0.839	false
2020-06-30T00:15Z	0.842	false
2020-06-30T00:00Z	0.846	false
2020-06-29T23:45Z	0.849	false
2020-06-29T23:30Z	0.852	false
2020-06-29T23:15Z	0.856	false
2020-06-29T23:00Z	0.86	false
2020-06-29T22:45Z	0.864	false
2020-06-29T22:30Z	0.869	false
2020-06-29T22:15Z	0.874	false
2020-06-29T22:00Z	0.879	false
2020-06-29T21:45Z	0.885	false
2020-06-29T21:30Z	0.891	false
2020-06-29T21:15Z	0.899	false
2020-06-29T21:00Z	0.904	false
2020-06-29T20:45Z	0.907	false
2020-06-29T20:30Z	0.897	false
2020-06-29T20:15Z	0.887	false
2020-06-29T20:00Z	0.877	false
2020-06-29T19:45Z	0.864	false
2020-06-29T19:30Z	0.85	false
2020-06-29T19:15Z	0.844	false
2020-06-29T19:00Z	0.845	false
2020-06-29T18:45Z	0.849	false
2020-06-29T18:30Z	0.85	false
2020-06-29T18:15Z	0.851	false
2020-06-29T18:00Z	0.864	false
2020-06-29T17:45Z	0.861	false
2020-06-29T17:30Z	0.862	false
2020-06-29T17:15Z	0.867	false
2020-06-29T17:00Z	0.87	false
2020-06-29T16:45Z	0.873	false
2020-06-29T16:30Z	0.877	false
2020-06-29T16:15Z	0.879	false
2020-06-29T16:00Z	0.884	false
2020-06-29T15:45Z	0.886	false
2020-06-29T15:30Z	0.887	false
2020-06-29T15:15Z	0.895	false
2020-06-29T15:00Z	0.879	false
2020-06-29T14:45Z	0.867	false
2020-06-29T14:30Z	0.865	false
2020-06-29T14:15Z	0.845	false
2020-06-29T14:00Z	0.84	false
2020-06-29T13:45Z	0.844	false
2020-06-29T13:30Z	0.845	false
2020-06-29T13:15Z	0.844	false
2020-06-29T13:00Z	0.85	false
2020-06-29T12:45Z	0.855	false
2020-06-29T12:30Z	0.859	false
2020-06-29T12:15Z	0.865	false

Forecast data

Key information

• Station name: Harlow Mill
• Station ID: 7353
• River name: River Stort
• Typical range: -0.01m to 2.02m
• Highest level on record: 2.95m on 10 February 2009
• Site datum: 39.00mAOD (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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