River level River Chess at Chesham

Check for flood warnings in this area

Latest recorded level 0.47m at 4:30am Monday 17 February 2020.

River levels at this location in the last 5 days

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• Measured level
• When the water level reaches 0.70m 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
2020-02-17T04:30Z	0.473	false
2020-02-17T04:15Z	0.473	false
2020-02-17T04:00Z	0.474	false
2020-02-17T03:45Z	0.474	false
2020-02-17T03:30Z	0.474	false
2020-02-17T03:15Z	0.475	false
2020-02-17T03:00Z	0.475	false
2020-02-17T02:45Z	0.475	false
2020-02-17T02:30Z	0.475	false
2020-02-17T02:15Z	0.475	false
2020-02-17T02:00Z	0.475	false
2020-02-17T01:45Z	0.475	false
2020-02-17T01:30Z	0.475	false
2020-02-17T01:15Z	0.476	false
2020-02-17T01:00Z	0.476	false
2020-02-17T00:45Z	0.477	false
2020-02-17T00:30Z	0.477	false
2020-02-17T00:15Z	0.477	false
2020-02-17T00:00Z	0.477	false
2020-02-16T23:45Z	0.477	false
2020-02-16T23:30Z	0.478	false
2020-02-16T23:15Z	0.479	false
2020-02-16T23:00Z	0.479	false
2020-02-16T22:45Z	0.479	false
2020-02-16T22:30Z	0.48	false
2020-02-16T22:15Z	0.48	false
2020-02-16T22:00Z	0.481	false
2020-02-16T21:45Z	0.481	false
2020-02-16T21:30Z	0.482	false
2020-02-16T21:15Z	0.482	false
2020-02-16T21:00Z	0.483	false
2020-02-16T20:45Z	0.484	false
2020-02-16T20:30Z	0.484	false
2020-02-16T20:15Z	0.485	false
2020-02-16T20:00Z	0.485	false
2020-02-16T19:45Z	0.485	false
2020-02-16T19:30Z	0.487	false
2020-02-16T19:15Z	0.486	false
2020-02-16T19:00Z	0.487	false
2020-02-16T18:45Z	0.488	false
2020-02-16T18:30Z	0.489	false
2020-02-16T18:15Z	0.49	false
2020-02-16T18:00Z	0.492	false
2020-02-16T17:45Z	0.493	false
2020-02-16T17:30Z	0.494	false
2020-02-16T17:15Z	0.494	false
2020-02-16T17:00Z	0.496	false
2020-02-16T16:45Z	0.497	false
2020-02-16T16:30Z	0.5	false
2020-02-16T16:15Z	0.502	false
2020-02-16T16:00Z	0.503	false
2020-02-16T15:45Z	0.505	false
2020-02-16T15:30Z	0.508	false
2020-02-16T15:15Z	0.511	false
2020-02-16T15:00Z	0.513	false
2020-02-16T14:45Z	0.516	false
2020-02-16T14:30Z	0.519	false
2020-02-16T14:15Z	0.52	false
2020-02-16T14:00Z	0.521	false
2020-02-16T13:45Z	0.521	false
2020-02-16T13:30Z	0.517	false
2020-02-16T13:15Z	0.513	false
2020-02-16T13:00Z	0.51	false
2020-02-16T12:45Z	0.512	false
2020-02-16T12:30Z	0.513	false
2020-02-16T12:15Z	0.514	false
2020-02-16T12:00Z	0.511	false
2020-02-16T11:45Z	0.504	false
2020-02-16T11:30Z	0.494	false
2020-02-16T11:15Z	0.491	false
2020-02-16T11:00Z	0.49	false
2020-02-16T10:45Z	0.49	false
2020-02-16T10:30Z	0.49	false
2020-02-16T10:15Z	0.492	false
2020-02-16T10:00Z	0.494	false
2020-02-16T09:45Z	0.495	false
2020-02-16T09:30Z	0.497	false
2020-02-16T09:15Z	0.5	false
2020-02-16T09:00Z	0.502	false
2020-02-16T08:45Z	0.503	false
2020-02-16T08:30Z	0.504	false
2020-02-16T08:15Z	0.507	false
2020-02-16T08:00Z	0.512	false
2020-02-16T07:45Z	0.515	false
2020-02-16T07:30Z	0.514	false
2020-02-16T07:15Z	0.515	false
2020-02-16T07:00Z	0.519	false
2020-02-16T06:45Z	0.495	false
2020-02-16T06:30Z	0.493	false
2020-02-16T06:15Z	0.49	false
2020-02-16T06:00Z	0.492	false
2020-02-16T05:45Z	0.489	false
2020-02-16T05:30Z	0.486	false
2020-02-16T05:15Z	0.484	false
2020-02-16T05:00Z	0.482	false
2020-02-16T04:45Z	0.482	false
2020-02-16T04:30Z	0.481	false
2020-02-16T04:15Z	0.478	false
2020-02-16T04:00Z	0.48	false
2020-02-16T03:45Z	0.473	false
2020-02-16T03:30Z	0.465	false
2020-02-16T03:15Z	0.463	false
2020-02-16T03:00Z	0.464	false
2020-02-16T02:45Z	0.463	false
2020-02-16T02:30Z	0.462	false
2020-02-16T02:15Z	0.463	false
2020-02-16T02:00Z	0.463	false
2020-02-16T01:45Z	0.464	false
2020-02-16T01:30Z	0.463	false
2020-02-16T01:15Z	0.464	false
2020-02-16T01:00Z	0.465	false
2020-02-16T00:45Z	0.464	false
2020-02-16T00:30Z	0.464	false
2020-02-16T00:15Z	0.465	false
2020-02-16T00:00Z	0.466	false
2020-02-15T23:45Z	0.466	false
2020-02-15T23:30Z	0.466	false
2020-02-15T23:15Z	0.466	false
2020-02-15T23:00Z	0.466	false
2020-02-15T22:45Z	0.467	false
2020-02-15T22:30Z	0.466	false
2020-02-15T22:15Z	0.466	false
2020-02-15T22:00Z	0.466	false
2020-02-15T21:45Z	0.467	false
2020-02-15T21:30Z	0.467	false
2020-02-15T21:15Z	0.467	false
2020-02-15T21:00Z	0.468	false
2020-02-15T20:45Z	0.468	false
2020-02-15T20:30Z	0.468	false
2020-02-15T20:15Z	0.469	false
2020-02-15T20:00Z	0.47	false
2020-02-15T19:45Z	0.468	false
2020-02-15T19:30Z	0.469	false
2020-02-15T19:15Z	0.471	false
2020-02-15T19:00Z	0.469	false
2020-02-15T18:45Z	0.468	false
2020-02-15T18:30Z	0.468	false
2020-02-15T18:15Z	0.468	false
2020-02-15T18:00Z	0.468	false
2020-02-15T17:45Z	0.467	false
2020-02-15T17:30Z	0.468	false
2020-02-15T17:15Z	0.467	false
2020-02-15T17:00Z	0.469	false
2020-02-15T16:45Z	0.471	false
2020-02-15T16:30Z	0.471	false
2020-02-15T16:15Z	0.468	false
2020-02-15T16:00Z	0.47	false
2020-02-15T15:45Z	0.471	false
2020-02-15T15:30Z	0.47	false
2020-02-15T15:15Z	0.465	false
2020-02-15T15:00Z	0.464	false
2020-02-15T14:45Z	0.459	false
2020-02-15T14:30Z	0.458	false
2020-02-15T14:15Z	0.455	false
2020-02-15T14:00Z	0.455	false
2020-02-15T13:45Z	0.455	false
2020-02-15T13:30Z	0.454	false
2020-02-15T13:15Z	0.454	false
2020-02-15T13:00Z	0.454	false
2020-02-15T12:45Z	0.453	false
2020-02-15T12:30Z	0.453	false
2020-02-15T12:15Z	0.453	false
2020-02-15T12:00Z	0.454	false
2020-02-15T11:45Z	0.453	false
2020-02-15T11:30Z	0.453	false
2020-02-15T11:15Z	0.454	false
2020-02-15T11:00Z	0.454	false
2020-02-15T10:45Z	0.453	false
2020-02-15T10:30Z	0.454	false
2020-02-15T10:15Z	0.454	false
2020-02-15T10:00Z	0.453	false
2020-02-15T09:45Z	0.453	false
2020-02-15T09:30Z	0.454	false
2020-02-15T09:15Z	0.454	false
2020-02-15T09:00Z	0.454	false
2020-02-15T08:45Z	0.455	false
2020-02-15T08:30Z	0.455	false
2020-02-15T08:15Z	0.455	false
2020-02-15T08:00Z	0.454	false
2020-02-15T07:45Z	0.455	false
2020-02-15T07:30Z	0.454	false
2020-02-15T07:15Z	0.454	false
2020-02-15T07:00Z	0.454	false
2020-02-15T06:45Z	0.455	false
2020-02-15T06:30Z	0.455	false
2020-02-15T06:15Z	0.455	false
2020-02-15T06:00Z	0.454	false
2020-02-15T05:45Z	0.454	false
2020-02-15T05:30Z	0.455	false
2020-02-15T05:15Z	0.454	false
2020-02-15T05:00Z	0.454	false
2020-02-15T04:45Z	0.454	false
2020-02-15T04:30Z	0.454	false
2020-02-15T04:15Z	0.454	false
2020-02-15T04:00Z	0.454	false
2020-02-15T03:45Z	0.454	false
2020-02-15T03:30Z	0.455	false
2020-02-15T03:15Z	0.454	false
2020-02-15T03:00Z	0.454	false
2020-02-15T02:45Z	0.455	false
2020-02-15T02:30Z	0.455	false
2020-02-15T02:15Z	0.454	false
2020-02-15T02:00Z	0.453	false
2020-02-15T01:45Z	0.453	false
2020-02-15T01:30Z	0.454	false
2020-02-15T01:15Z	0.453	false
2020-02-15T01:00Z	0.453	false
2020-02-15T00:45Z	0.455	false
2020-02-15T00:30Z	0.456	false
2020-02-15T00:15Z	0.457	false
2020-02-15T00:00Z	0.457	false
2020-02-14T23:45Z	0.455	false
2020-02-14T23:30Z	0.453	false
2020-02-14T23:15Z	0.451	false
2020-02-14T23:00Z	0.45	false
2020-02-14T22:45Z	0.45	false
2020-02-14T22:30Z	0.45	false
2020-02-14T22:15Z	0.449	false
2020-02-14T22:00Z	0.449	false
2020-02-14T21:45Z	0.449	false
2020-02-14T21:30Z	0.448	false
2020-02-14T21:15Z	0.449	false
2020-02-14T21:00Z	0.449	false
2020-02-14T20:45Z	0.448	false
2020-02-14T20:30Z	0.448	false
2020-02-14T20:15Z	0.448	false
2020-02-14T20:00Z	0.448	false
2020-02-14T19:45Z	0.447	false
2020-02-14T19:30Z	0.446	false
2020-02-14T19:15Z	0.446	false
2020-02-14T19:00Z	0.446	false
2020-02-14T18:45Z	0.446	false
2020-02-14T18:30Z	0.446	false
2020-02-14T18:15Z	0.447	false
2020-02-14T18:00Z	0.447	false
2020-02-14T17:45Z	0.446	false
2020-02-14T17:30Z	0.447	false
2020-02-14T17:15Z	0.446	false
2020-02-14T17:00Z	0.447	false
2020-02-14T16:45Z	0.446	false
2020-02-14T16:30Z	0.446	false
2020-02-14T16:15Z	0.446	false
2020-02-14T16:00Z	0.446	false
2020-02-14T15:45Z	0.446	false
2020-02-14T15:30Z	0.447	false
2020-02-14T15:15Z	0.447	false
2020-02-14T15:00Z	0.447	false
2020-02-14T14:45Z	0.447	false
2020-02-14T14:30Z	0.446	false
2020-02-14T14:15Z	0.447	false
2020-02-14T14:00Z	0.446	false
2020-02-14T13:45Z	0.447	false
2020-02-14T13:30Z	0.447	false
2020-02-14T13:15Z	0.447	false
2020-02-14T13:00Z	0.447	false
2020-02-14T12:45Z	0.447	false
2020-02-14T12:30Z	0.447	false
2020-02-14T12:15Z	0.447	false
2020-02-14T12:00Z	0.447	false
2020-02-14T11:45Z	0.446	false
2020-02-14T11:30Z	0.447	false
2020-02-14T11:15Z	0.446	false
2020-02-14T11:00Z	0.446	false
2020-02-14T10:45Z	0.446	false
2020-02-14T10:30Z	0.446	false
2020-02-14T10:15Z	0.446	false
2020-02-14T10:00Z	0.446	false
2020-02-14T09:45Z	0.446	false
2020-02-14T09:30Z	0.446	false
2020-02-14T09:15Z	0.446	false
2020-02-14T09:00Z	0.446	false
2020-02-14T08:45Z	0.446	false
2020-02-14T08:30Z	0.446	false
2020-02-14T08:15Z	0.447	false
2020-02-14T08:00Z	0.446	false
2020-02-14T07:45Z	0.446	false
2020-02-14T07:30Z	0.446	false
2020-02-14T07:15Z	0.447	false
2020-02-14T07:00Z	0.447	false
2020-02-14T06:45Z	0.447	false
2020-02-14T06:30Z	0.446	false
2020-02-14T06:15Z	0.446	false
2020-02-14T06:00Z	0.447	false
2020-02-14T05:45Z	0.447	false
2020-02-14T05:30Z	0.447	false
2020-02-14T05:15Z	0.447	false
2020-02-14T05:00Z	0.447	false
2020-02-14T04:45Z	0.447	false
2020-02-14T04:30Z	0.447	false
2020-02-14T04:15Z	0.447	false
2020-02-14T04:00Z	0.447	false
2020-02-14T03:45Z	0.447	false
2020-02-14T03:30Z	0.447	false
2020-02-14T03:15Z	0.447	false
2020-02-14T03:00Z	0.447	false
2020-02-14T02:45Z	0.446	false
2020-02-14T02:30Z	0.447	false
2020-02-14T02:15Z	0.447	false
2020-02-14T02:00Z	0.447	false
2020-02-14T01:45Z	0.447	false
2020-02-14T01:30Z	0.447	false
2020-02-14T01:15Z	0.447	false
2020-02-14T01:00Z	0.447	false
2020-02-14T00:45Z	0.447	false
2020-02-14T00:30Z	0.447	false
2020-02-14T00:15Z	0.447	false
2020-02-14T00:00Z	0.447	false
2020-02-13T23:45Z	0.447	false
2020-02-13T23:30Z	0.447	false
2020-02-13T23:15Z	0.447	false
2020-02-13T23:00Z	0.447	false
2020-02-13T22:45Z	0.448	false
2020-02-13T22:30Z	0.448	false
2020-02-13T22:15Z	0.448	false
2020-02-13T22:00Z	0.449	false
2020-02-13T21:45Z	0.448	false
2020-02-13T21:30Z	0.448	false
2020-02-13T21:15Z	0.449	false
2020-02-13T21:00Z	0.449	false
2020-02-13T20:45Z	0.449	false
2020-02-13T20:30Z	0.449	false
2020-02-13T20:15Z	0.449	false
2020-02-13T20:00Z	0.449	false
2020-02-13T19:45Z	0.45	false
2020-02-13T19:30Z	0.45	false
2020-02-13T19:15Z	0.45	false
2020-02-13T19:00Z	0.449	false
2020-02-13T18:45Z	0.45	false
2020-02-13T18:30Z	0.45	false
2020-02-13T18:15Z	0.451	false
2020-02-13T18:00Z	0.45	false
2020-02-13T17:45Z	0.451	false
2020-02-13T17:30Z	0.451	false
2020-02-13T17:15Z	0.451	false
2020-02-13T17:00Z	0.451	false
2020-02-13T16:45Z	0.452	false
2020-02-13T16:30Z	0.453	false
2020-02-13T16:15Z	0.453	false
2020-02-13T16:00Z	0.453	false
2020-02-13T15:45Z	0.453	false
2020-02-13T15:30Z	0.453	false
2020-02-13T15:15Z	0.454	false
2020-02-13T15:00Z	0.454	false
2020-02-13T14:45Z	0.454	false
2020-02-13T14:30Z	0.453	false
2020-02-13T14:15Z	0.453	false
2020-02-13T14:00Z	0.454	false
2020-02-13T13:45Z	0.455	false
2020-02-13T13:30Z	0.455	false
2020-02-13T13:15Z	0.455	false
2020-02-13T13:00Z	0.456	false
2020-02-13T12:45Z	0.456	false
2020-02-13T12:30Z	0.456	false
2020-02-13T12:15Z	0.456	false
2020-02-13T12:00Z	0.456	false
2020-02-13T11:45Z	0.457	false
2020-02-13T11:30Z	0.457	false
2020-02-13T11:15Z	0.457	false
2020-02-13T11:00Z	0.457	false
2020-02-13T10:45Z	0.458	false
2020-02-13T10:30Z	0.458	false
2020-02-13T10:15Z	0.458	false
2020-02-13T10:00Z	0.459	false
2020-02-13T09:45Z	0.459	false
2020-02-13T09:30Z	0.46	false
2020-02-13T09:15Z	0.46	false
2020-02-13T09:00Z	0.461	false
2020-02-13T08:45Z	0.462	false
2020-02-13T08:30Z	0.462	false
2020-02-13T08:15Z	0.461	false
2020-02-13T08:00Z	0.464	false
2020-02-13T07:45Z	0.465	false
2020-02-13T07:30Z	0.466	false
2020-02-13T07:15Z	0.467	false
2020-02-13T07:00Z	0.469	false
2020-02-13T06:45Z	0.47	false
2020-02-13T06:30Z	0.471	false
2020-02-13T06:15Z	0.471	false
2020-02-13T06:00Z	0.474	false
2020-02-13T05:45Z	0.479	false
2020-02-13T05:30Z	0.48	false
2020-02-13T05:15Z	0.478	false
2020-02-13T05:00Z	0.478	false
2020-02-13T04:45Z	0.472	false
2020-02-13T04:30Z	0.462	false
2020-02-13T04:15Z	0.455	false
2020-02-13T04:00Z	0.453	false
2020-02-13T03:45Z	0.453	false
2020-02-13T03:30Z	0.454	false
2020-02-13T03:15Z	0.453	false
2020-02-13T03:00Z	0.452	false
2020-02-13T02:45Z	0.452	false
2020-02-13T02:30Z	0.45	false
2020-02-13T02:15Z	0.448	false
2020-02-13T02:00Z	0.448	false
2020-02-13T01:45Z	0.448	false
2020-02-13T01:30Z	0.448	false
2020-02-13T01:15Z	0.448	false
2020-02-13T01:00Z	0.447	false
2020-02-13T00:45Z	0.447	false
2020-02-13T00:30Z	0.448	false
2020-02-13T00:15Z	0.447	false
2020-02-13T00:00Z	0.447	false
2020-02-12T23:45Z	0.447	false
2020-02-12T23:30Z	0.447	false
2020-02-12T23:15Z	0.446	false
2020-02-12T23:00Z	0.446	false
2020-02-12T22:45Z	0.446	false
2020-02-12T22:30Z	0.446	false
2020-02-12T22:15Z	0.446	false
2020-02-12T22:00Z	0.446	false
2020-02-12T21:45Z	0.445	false
2020-02-12T21:30Z	0.446	false
2020-02-12T21:15Z	0.445	false
2020-02-12T21:00Z	0.445	false
2020-02-12T20:45Z	0.445	false
2020-02-12T20:30Z	0.445	false
2020-02-12T20:15Z	0.445	false
2020-02-12T20:00Z	0.445	false
2020-02-12T19:45Z	0.446	false
2020-02-12T19:30Z	0.445	false
2020-02-12T19:15Z	0.445	false
2020-02-12T19:00Z	0.444	false
2020-02-12T18:45Z	0.445	false
2020-02-12T18:30Z	0.445	false
2020-02-12T18:15Z	0.445	false
2020-02-12T18:00Z	0.445	false
2020-02-12T17:45Z	0.446	false
2020-02-12T17:30Z	0.445	false
2020-02-12T17:15Z	0.445	false
2020-02-12T17:00Z	0.445	false
2020-02-12T16:45Z	0.445	false
2020-02-12T16:30Z	0.446	false
2020-02-12T16:15Z	0.445	false
2020-02-12T16:00Z	0.445	false
2020-02-12T15:45Z	0.445	false
2020-02-12T15:30Z	0.446	false
2020-02-12T15:15Z	0.446	false
2020-02-12T15:00Z	0.446	false
2020-02-12T14:45Z	0.446	false
2020-02-12T14:30Z	0.446	false
2020-02-12T14:15Z	0.446	false
2020-02-12T14:00Z	0.446	false
2020-02-12T13:45Z	0.447	false
2020-02-12T13:30Z	0.447	false
2020-02-12T13:15Z	0.447	false
2020-02-12T13:00Z	0.447	false
2020-02-12T12:45Z	0.449	false
2020-02-12T12:30Z	0.444	false
2020-02-12T12:15Z	0.444	false
2020-02-12T12:00Z	0.445	false
2020-02-12T11:45Z	0.445	false
2020-02-12T11:30Z	0.445	false
2020-02-12T11:15Z	0.445	false
2020-02-12T11:00Z	0.444	false
2020-02-12T10:45Z	0.444	false
2020-02-12T10:30Z	0.445	false
2020-02-12T10:15Z	0.445	false
2020-02-12T10:00Z	0.445	false
2020-02-12T09:45Z	0.445	false
2020-02-12T09:30Z	0.445	false
2020-02-12T09:15Z	0.443	false
2020-02-12T09:00Z	0.444	false
2020-02-12T08:45Z	0.444	false
2020-02-12T08:30Z	0.444	false
2020-02-12T08:15Z	0.445	false
2020-02-12T08:00Z	0.444	false
2020-02-12T07:45Z	0.445	false
2020-02-12T07:30Z	0.444	false
2020-02-12T07:15Z	0.445	false
2020-02-12T07:00Z	0.444	false
2020-02-12T06:45Z	0.445	false
2020-02-12T06:30Z	0.445	false
2020-02-12T06:15Z	0.445	false
2020-02-12T06:00Z	0.445	false
2020-02-12T05:45Z	0.445	false
2020-02-12T05:30Z	0.444	false
2020-02-12T05:15Z	0.445	false
2020-02-12T05:00Z	0.445	false
2020-02-12T04:45Z	0.445	false

Forecast data

Key information

• Station name: Chesham
• Station ID: 7189
• River name: River Chess
• Typical range: 0.26m to 0.70m
• Highest level on record: 0.68m on 07 February 2014
• Site datum: 99.00mAOD (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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