River level Dearne Washlands at Mexborough Dearne Mouth (upstream data)

Check for flood warnings in this area

Latest recorded level 9.85m at 7:45am Monday 21 September 2020.

View downstream 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 10.50m 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
2020-09-21T06:45Z	9.847	false
2020-09-21T06:30Z	9.848	false
2020-09-21T06:15Z	9.848	false
2020-09-21T06:00Z	9.848	false
2020-09-21T05:45Z	9.848	false
2020-09-21T05:30Z	9.849	false
2020-09-21T05:15Z	9.849	false
2020-09-21T05:00Z	9.849	false
2020-09-21T04:45Z	9.849	false
2020-09-21T04:30Z	9.849	false
2020-09-21T04:15Z	9.85	false
2020-09-21T04:00Z	9.85	false
2020-09-21T03:45Z	9.85	false
2020-09-21T03:30Z	9.85	false
2020-09-21T03:15Z	9.85	false
2020-09-21T03:00Z	9.85	false
2020-09-21T02:45Z	9.851	false
2020-09-21T02:30Z	9.85	false
2020-09-21T02:15Z	9.851	false
2020-09-21T02:00Z	9.851	false
2020-09-21T01:45Z	9.851	false
2020-09-21T01:30Z	9.851	false
2020-09-21T01:15Z	9.851	false
2020-09-21T01:00Z	9.851	false
2020-09-21T00:45Z	9.852	false
2020-09-21T00:30Z	9.852	false
2020-09-21T00:15Z	9.851	false
2020-09-21T00:00Z	9.852	false
2020-09-20T23:45Z	9.851	false
2020-09-20T23:30Z	9.852	false
2020-09-20T23:15Z	9.852	false
2020-09-20T23:00Z	9.852	false
2020-09-20T22:45Z	9.852	false
2020-09-20T22:30Z	9.852	false
2020-09-20T22:15Z	9.852	false
2020-09-20T22:00Z	9.852	false
2020-09-20T21:45Z	9.852	false
2020-09-20T21:30Z	9.852	false
2020-09-20T21:15Z	9.852	false
2020-09-20T21:00Z	9.852	false
2020-09-20T20:45Z	9.852	false
2020-09-20T20:30Z	9.852	false
2020-09-20T20:15Z	9.852	false
2020-09-20T20:00Z	9.852	false
2020-09-20T19:45Z	9.852	false
2020-09-20T19:30Z	9.852	false
2020-09-20T19:15Z	9.852	false
2020-09-20T19:00Z	9.852	false
2020-09-20T18:45Z	9.852	false
2020-09-20T18:30Z	9.852	false
2020-09-20T18:15Z	9.852	false
2020-09-20T18:00Z	9.852	false
2020-09-20T17:45Z	9.852	false
2020-09-20T17:30Z	9.852	false
2020-09-20T17:15Z	9.852	false
2020-09-20T17:00Z	9.852	false
2020-09-20T16:45Z	9.852	false
2020-09-20T16:30Z	9.852	false
2020-09-20T16:15Z	9.852	false
2020-09-20T16:00Z	9.852	false
2020-09-20T15:45Z	9.852	false
2020-09-20T15:30Z	9.852	false
2020-09-20T15:15Z	9.852	false
2020-09-20T15:00Z	9.852	false
2020-09-20T14:45Z	9.853	false
2020-09-20T14:30Z	9.852	false
2020-09-20T14:15Z	9.853	false
2020-09-20T14:00Z	9.853	false
2020-09-20T13:45Z	9.852	false
2020-09-20T13:30Z	9.853	false
2020-09-20T13:15Z	9.852	false
2020-09-20T13:00Z	9.854	false
2020-09-20T12:45Z	9.853	false
2020-09-20T12:30Z	9.853	false
2020-09-20T12:15Z	9.854	false
2020-09-20T12:00Z	9.853	false
2020-09-20T11:45Z	9.854	false
2020-09-20T11:30Z	9.853	false
2020-09-20T11:15Z	9.854	false
2020-09-20T11:00Z	9.853	false
2020-09-20T10:45Z	9.853	false
2020-09-20T10:30Z	9.853	false
2020-09-20T10:15Z	9.853	false
2020-09-20T10:00Z	9.853	false
2020-09-20T09:45Z	9.853	false
2020-09-20T09:30Z	9.853	false
2020-09-20T09:15Z	9.854	false
2020-09-20T09:00Z	9.853	false
2020-09-20T08:45Z	9.853	false
2020-09-20T08:30Z	9.853	false
2020-09-20T08:15Z	9.853	false
2020-09-20T08:00Z	9.853	false
2020-09-20T07:45Z	9.853	false
2020-09-20T07:30Z	9.853	false
2020-09-20T07:15Z	9.853	false
2020-09-20T07:00Z	9.853	false
2020-09-20T06:45Z	9.853	false
2020-09-20T06:30Z	9.853	false
2020-09-20T06:15Z	9.853	false
2020-09-20T06:00Z	9.853	false
2020-09-20T05:45Z	9.853	false
2020-09-20T05:30Z	9.853	false
2020-09-20T05:15Z	9.853	false
2020-09-20T05:00Z	9.853	false
2020-09-20T04:45Z	9.854	false
2020-09-20T04:30Z	9.853	false
2020-09-20T04:15Z	9.854	false
2020-09-20T04:00Z	9.854	false
2020-09-20T03:45Z	9.854	false
2020-09-20T03:30Z	9.854	false
2020-09-20T03:15Z	9.854	false
2020-09-20T03:00Z	9.854	false
2020-09-20T02:45Z	9.854	false
2020-09-20T02:30Z	9.854	false
2020-09-20T02:15Z	9.854	false
2020-09-20T02:00Z	9.854	false
2020-09-20T01:45Z	9.854	false
2020-09-20T01:30Z	9.854	false
2020-09-20T01:15Z	9.854	false
2020-09-20T01:00Z	9.854	false
2020-09-20T00:45Z	9.854	false
2020-09-20T00:30Z	9.854	false
2020-09-20T00:15Z	9.854	false
2020-09-20T00:00Z	9.854	false
2020-09-19T23:45Z	9.854	false
2020-09-19T23:30Z	9.854	false
2020-09-19T23:15Z	9.854	false
2020-09-19T23:00Z	9.854	false
2020-09-19T22:45Z	9.854	false
2020-09-19T22:30Z	9.854	false
2020-09-19T22:15Z	9.854	false
2020-09-19T22:00Z	9.855	false
2020-09-19T21:45Z	9.854	false
2020-09-19T21:30Z	9.855	false
2020-09-19T21:15Z	9.854	false
2020-09-19T21:00Z	9.854	false
2020-09-19T20:45Z	9.854	false
2020-09-19T20:30Z	9.854	false
2020-09-19T20:15Z	9.856	false
2020-09-19T20:00Z	9.855	false
2020-09-19T19:45Z	9.855	false
2020-09-19T19:30Z	9.855	false
2020-09-19T19:15Z	9.854	false
2020-09-19T19:00Z	9.854	false
2020-09-19T18:45Z	9.855	false
2020-09-19T18:30Z	9.854	false
2020-09-19T18:15Z	9.855	false
2020-09-19T18:00Z	9.855	false
2020-09-19T17:45Z	9.854	false
2020-09-19T17:30Z	9.856	false
2020-09-19T17:15Z	9.855	false
2020-09-19T17:00Z	9.857	false
2020-09-19T16:45Z	9.855	false
2020-09-19T16:30Z	9.855	false
2020-09-19T16:15Z	9.856	false
2020-09-19T16:00Z	9.857	false
2020-09-19T15:45Z	9.854	false
2020-09-19T15:30Z	9.855	false
2020-09-19T15:15Z	9.855	false
2020-09-19T15:00Z	9.857	false
2020-09-19T14:45Z	9.855	false
2020-09-19T14:30Z	9.857	false
2020-09-19T14:15Z	9.856	false
2020-09-19T14:00Z	9.856	false
2020-09-19T13:45Z	9.858	false
2020-09-19T13:30Z	9.856	false
2020-09-19T13:15Z	9.857	false
2020-09-19T13:00Z	9.855	false
2020-09-19T12:45Z	9.859	false
2020-09-19T12:30Z	9.856	false
2020-09-19T12:15Z	9.857	false
2020-09-19T12:00Z	9.856	false
2020-09-19T11:45Z	9.856	false
2020-09-19T11:30Z	9.858	false
2020-09-19T11:15Z	9.856	false
2020-09-19T11:00Z	9.856	false
2020-09-19T10:45Z	9.855	false
2020-09-19T10:30Z	9.857	false
2020-09-19T10:15Z	9.858	false
2020-09-19T10:00Z	9.857	false
2020-09-19T09:45Z	9.857	false
2020-09-19T09:30Z	9.856	false
2020-09-19T09:15Z	9.855	false
2020-09-19T09:00Z	9.855	false
2020-09-19T08:45Z	9.856	false
2020-09-19T08:30Z	9.856	false
2020-09-19T08:15Z	9.856	false
2020-09-19T08:00Z	9.856	false
2020-09-19T07:45Z	9.856	false
2020-09-19T07:30Z	9.856	false
2020-09-19T07:15Z	9.856	false
2020-09-19T07:00Z	9.856	false
2020-09-19T06:45Z	9.856	false
2020-09-19T06:30Z	9.856	false
2020-09-19T06:15Z	9.855	false
2020-09-19T06:00Z	9.856	false
2020-09-19T05:45Z	9.855	false
2020-09-19T05:30Z	9.856	false
2020-09-19T05:15Z	9.856	false
2020-09-19T05:00Z	9.856	false
2020-09-19T04:45Z	9.856	false
2020-09-19T04:30Z	9.856	false
2020-09-19T04:15Z	9.855	false
2020-09-19T04:00Z	9.855	false
2020-09-19T03:45Z	9.855	false
2020-09-19T03:30Z	9.856	false
2020-09-19T03:15Z	9.855	false
2020-09-19T03:00Z	9.855	false
2020-09-19T02:45Z	9.855	false
2020-09-19T02:30Z	9.854	false
2020-09-19T02:15Z	9.854	false
2020-09-19T02:00Z	9.854	false
2020-09-19T01:45Z	9.854	false
2020-09-19T01:30Z	9.853	false
2020-09-19T01:15Z	9.852	false
2020-09-19T01:00Z	9.852	false
2020-09-19T00:45Z	9.852	false
2020-09-19T00:30Z	9.851	false
2020-09-19T00:15Z	9.851	false
2020-09-19T00:00Z	9.851	false
2020-09-18T23:45Z	9.851	false
2020-09-18T23:30Z	9.85	false
2020-09-18T23:15Z	9.85	false
2020-09-18T23:00Z	9.85	false
2020-09-18T22:45Z	9.85	false
2020-09-18T22:30Z	9.849	false
2020-09-18T22:15Z	9.849	false
2020-09-18T22:00Z	9.849	false
2020-09-18T21:45Z	9.848	false
2020-09-18T21:30Z	9.848	false
2020-09-18T21:15Z	9.848	false
2020-09-18T21:00Z	9.847	false
2020-09-18T20:45Z	9.847	false
2020-09-18T20:30Z	9.846	false
2020-09-18T20:15Z	9.846	false
2020-09-18T20:00Z	9.845	false
2020-09-18T19:45Z	9.845	false
2020-09-18T19:30Z	9.845	false
2020-09-18T19:15Z	9.845	false
2020-09-18T19:00Z	9.844	false
2020-09-18T18:45Z	9.844	false
2020-09-18T18:30Z	9.844	false
2020-09-18T18:15Z	9.844	false
2020-09-18T18:00Z	9.843	false
2020-09-18T17:45Z	9.843	false
2020-09-18T17:30Z	9.843	false
2020-09-18T17:15Z	9.842	false
2020-09-18T17:00Z	9.842	false
2020-09-18T16:45Z	9.842	false
2020-09-18T16:30Z	9.841	false
2020-09-18T16:15Z	9.842	false
2020-09-18T16:00Z	9.841	false
2020-09-18T15:45Z	9.841	false
2020-09-18T15:30Z	9.839	false
2020-09-18T15:15Z	9.84	false
2020-09-18T15:00Z	9.84	false
2020-09-18T14:45Z	9.84	false
2020-09-18T14:30Z	9.84	false
2020-09-18T14:15Z	9.839	false
2020-09-18T14:00Z	9.838	false
2020-09-18T13:45Z	9.84	false
2020-09-18T13:30Z	9.84	false
2020-09-18T13:15Z	9.837	false
2020-09-18T13:00Z	9.838	false
2020-09-18T12:45Z	9.838	false
2020-09-18T12:30Z	9.838	false
2020-09-18T12:15Z	9.838	false
2020-09-18T12:00Z	9.837	false
2020-09-18T11:45Z	9.837	false
2020-09-18T11:30Z	9.836	false
2020-09-18T11:15Z	9.838	false
2020-09-18T11:00Z	9.837	false
2020-09-18T10:45Z	9.836	false
2020-09-18T10:30Z	9.837	false
2020-09-18T10:15Z	9.837	false
2020-09-18T10:00Z	9.836	false
2020-09-18T09:45Z	9.836	false
2020-09-18T09:30Z	9.836	false
2020-09-18T09:15Z	9.836	false
2020-09-18T09:00Z	9.835	false
2020-09-18T08:45Z	9.835	false
2020-09-18T08:30Z	9.835	false
2020-09-18T08:15Z	9.835	false
2020-09-18T08:00Z	9.835	false
2020-09-18T07:45Z	9.835	false
2020-09-18T07:30Z	9.834	false
2020-09-18T07:15Z	9.834	false
2020-09-18T07:00Z	9.834	false
2020-09-18T06:45Z	9.835	false
2020-09-18T06:30Z	9.834	false
2020-09-18T06:15Z	9.834	false
2020-09-18T06:00Z	9.834	false
2020-09-18T05:45Z	9.835	false
2020-09-18T05:30Z	9.834	false
2020-09-18T05:15Z	9.834	false
2020-09-18T05:00Z	9.835	false
2020-09-18T04:45Z	9.835	false
2020-09-18T04:30Z	9.835	false
2020-09-18T04:15Z	9.835	false
2020-09-18T04:00Z	9.835	false
2020-09-18T03:45Z	9.835	false
2020-09-18T03:30Z	9.835	false
2020-09-18T03:15Z	9.835	false
2020-09-18T03:00Z	9.836	false
2020-09-18T02:45Z	9.836	false
2020-09-18T02:30Z	9.835	false
2020-09-18T02:15Z	9.836	false
2020-09-18T02:00Z	9.836	false
2020-09-18T01:45Z	9.836	false
2020-09-18T01:30Z	9.836	false
2020-09-18T01:15Z	9.836	false
2020-09-18T01:00Z	9.836	false
2020-09-18T00:45Z	9.836	false
2020-09-18T00:30Z	9.836	false
2020-09-18T00:15Z	9.837	false
2020-09-18T00:00Z	9.837	false
2020-09-17T23:45Z	9.837	false
2020-09-17T23:30Z	9.837	false
2020-09-17T23:15Z	9.836	false
2020-09-17T23:00Z	9.837	false
2020-09-17T22:45Z	9.837	false
2020-09-17T22:30Z	9.838	false
2020-09-17T22:15Z	9.837	false
2020-09-17T22:00Z	9.838	false
2020-09-17T21:45Z	9.838	false
2020-09-17T21:30Z	9.837	false
2020-09-17T21:15Z	9.837	false
2020-09-17T21:00Z	9.838	false
2020-09-17T20:45Z	9.838	false
2020-09-17T20:30Z	9.838	false
2020-09-17T20:15Z	9.837	false
2020-09-17T20:00Z	9.838	false
2020-09-17T19:45Z	9.838	false
2020-09-17T19:30Z	9.838	false
2020-09-17T19:15Z	9.838	false
2020-09-17T19:00Z	9.838	false
2020-09-17T18:45Z	9.838	false
2020-09-17T18:30Z	9.838	false
2020-09-17T18:15Z	9.838	false
2020-09-17T18:00Z	9.838	false
2020-09-17T17:45Z	9.838	false
2020-09-17T17:30Z	9.838	false
2020-09-17T17:15Z	9.838	false
2020-09-17T17:00Z	9.838	false
2020-09-17T16:45Z	9.839	false
2020-09-17T16:30Z	9.839	false
2020-09-17T16:15Z	9.838	false
2020-09-17T16:00Z	9.839	false
2020-09-17T15:45Z	9.838	false
2020-09-17T15:30Z	9.838	false
2020-09-17T15:15Z	9.839	false
2020-09-17T15:00Z	9.839	false
2020-09-17T14:45Z	9.838	false
2020-09-17T14:30Z	9.839	false
2020-09-17T14:15Z	9.839	false
2020-09-17T14:00Z	9.839	false
2020-09-17T13:45Z	9.839	false
2020-09-17T13:30Z	9.839	false
2020-09-17T13:15Z	9.839	false
2020-09-17T13:00Z	9.839	false
2020-09-17T12:45Z	9.839	false
2020-09-17T12:30Z	9.839	false
2020-09-17T12:15Z	9.84	false
2020-09-17T12:00Z	9.839	false
2020-09-17T11:45Z	9.839	false
2020-09-17T11:30Z	9.84	false
2020-09-17T11:15Z	9.839	false
2020-09-17T11:00Z	9.839	false
2020-09-17T10:45Z	9.839	false
2020-09-17T10:30Z	9.84	false
2020-09-17T10:15Z	9.84	false
2020-09-17T10:00Z	9.84	false
2020-09-17T09:45Z	9.84	false
2020-09-17T09:30Z	9.84	false
2020-09-17T09:15Z	9.84	false
2020-09-17T09:00Z	9.84	false
2020-09-17T08:45Z	9.84	false
2020-09-17T08:30Z	9.84	false
2020-09-17T08:15Z	9.841	false
2020-09-17T08:00Z	9.84	false
2020-09-17T07:45Z	9.84	false
2020-09-17T07:30Z	9.841	false
2020-09-17T07:15Z	9.84	false
2020-09-17T07:00Z	9.841	false
2020-09-17T06:45Z	9.84	false
2020-09-17T06:30Z	9.841	false
2020-09-17T06:15Z	9.841	false
2020-09-17T06:00Z	9.841	false
2020-09-17T05:45Z	9.841	false
2020-09-17T05:30Z	9.842	false
2020-09-17T05:15Z	9.842	false
2020-09-17T05:00Z	9.842	false
2020-09-17T04:45Z	9.842	false
2020-09-17T04:30Z	9.842	false
2020-09-17T04:15Z	9.842	false
2020-09-17T04:00Z	9.842	false
2020-09-17T03:45Z	9.842	false
2020-09-17T03:30Z	9.843	false
2020-09-17T03:15Z	9.842	false
2020-09-17T03:00Z	9.843	false
2020-09-17T02:45Z	9.842	false
2020-09-17T02:30Z	9.843	false
2020-09-17T02:15Z	9.843	false
2020-09-17T02:00Z	9.843	false
2020-09-17T01:45Z	9.843	false
2020-09-17T01:30Z	9.843	false
2020-09-17T01:15Z	9.844	false
2020-09-17T01:00Z	9.843	false
2020-09-17T00:45Z	9.844	false
2020-09-17T00:30Z	9.844	false
2020-09-17T00:15Z	9.844	false
2020-09-17T00:00Z	9.844	false
2020-09-16T23:45Z	9.845	false
2020-09-16T23:30Z	9.844	false
2020-09-16T23:15Z	9.844	false
2020-09-16T23:00Z	9.845	false
2020-09-16T22:45Z	9.844	false
2020-09-16T22:30Z	9.844	false
2020-09-16T22:15Z	9.845	false
2020-09-16T22:00Z	9.845	false
2020-09-16T21:45Z	9.845	false
2020-09-16T21:30Z	9.845	false
2020-09-16T21:15Z	9.846	false
2020-09-16T21:00Z	9.845	false
2020-09-16T20:45Z	9.846	false
2020-09-16T20:30Z	9.845	false
2020-09-16T20:15Z	9.845	false
2020-09-16T20:00Z	9.846	false
2020-09-16T19:45Z	9.846	false
2020-09-16T19:30Z	9.846	false
2020-09-16T19:15Z	9.846	false
2020-09-16T19:00Z	9.846	false
2020-09-16T18:45Z	9.846	false
2020-09-16T18:30Z	9.847	false
2020-09-16T18:15Z	9.847	false
2020-09-16T18:00Z	9.847	false
2020-09-16T17:45Z	9.847	false
2020-09-16T17:30Z	9.847	false
2020-09-16T17:15Z	9.848	false
2020-09-16T17:00Z	9.849	false
2020-09-16T16:45Z	9.848	false
2020-09-16T16:30Z	9.849	false
2020-09-16T16:15Z	9.849	false
2020-09-16T16:00Z	9.849	false
2020-09-16T15:45Z	9.849	false
2020-09-16T15:30Z	9.849	false
2020-09-16T15:15Z	9.849	false
2020-09-16T15:00Z	9.848	false
2020-09-16T14:45Z	9.85	false
2020-09-16T14:30Z	9.849	false
2020-09-16T14:15Z	9.849	false
2020-09-16T14:00Z	9.85	false
2020-09-16T13:45Z	9.849	false
2020-09-16T13:30Z	9.849	false
2020-09-16T13:15Z	9.85	false
2020-09-16T13:00Z	9.851	false
2020-09-16T12:45Z	9.85	false
2020-09-16T12:30Z	9.85	false
2020-09-16T12:15Z	9.85	false
2020-09-16T12:00Z	9.851	false
2020-09-16T11:45Z	9.85	false
2020-09-16T11:30Z	9.851	false
2020-09-16T11:15Z	9.852	false
2020-09-16T11:00Z	9.851	false
2020-09-16T10:45Z	9.851	false
2020-09-16T10:30Z	9.852	false
2020-09-16T10:15Z	9.851	false
2020-09-16T10:00Z	9.851	false
2020-09-16T09:45Z	9.852	false
2020-09-16T09:30Z	9.852	false
2020-09-16T09:15Z	9.852	false
2020-09-16T09:00Z	9.852	false
2020-09-16T08:45Z	9.852	false
2020-09-16T08:30Z	9.852	false
2020-09-16T08:15Z	9.852	false
2020-09-16T08:00Z	9.852	false
2020-09-16T07:45Z	9.853	false
2020-09-16T07:30Z	9.853	false
2020-09-16T07:15Z	9.852	false
2020-09-16T07:00Z	9.853	false

Forecast data

Key information

• Station name: Mexborough Dearne Mouth (upstream)
• Station ID: 9332
• River name: Dearne Washlands
• Typical range: 9.81m to 10.50m
• Highest level on record: 13.92m on 09 November 2019
• Site datum: 0.00mAOD (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
• Check the long term flood risk for an area in England.

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