River level River Calder at Mytholmroyd Temporary site

Latest recorded level 0.50m at 6:15am Friday 18 September 2020.

Levels: last 5 days and next 36 hours

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• Measured level
• Forecast level
• Property flooding possible
• Low lying land may flood
• Highest recorded level. Hide
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Observed data

DateTime	Value	Error
2020-09-18T05:15Z	0.497	false
2020-09-18T05:00Z	0.497	false
2020-09-18T04:45Z	0.497	false
2020-09-18T04:30Z	0.497	false
2020-09-18T04:15Z	0.497	false
2020-09-18T04:00Z	0.497	false
2020-09-18T03:45Z	0.497	false
2020-09-18T03:30Z	0.498	false
2020-09-18T03:15Z	0.498	false
2020-09-18T03:00Z	0.499	false
2020-09-18T02:45Z	0.499	false
2020-09-18T02:30Z	0.5	false
2020-09-18T02:15Z	0.501	false
2020-09-18T02:00Z	0.501	false
2020-09-18T01:45Z	0.502	false
2020-09-18T01:30Z	0.501	false
2020-09-18T01:15Z	0.502	false
2020-09-18T01:00Z	0.502	false
2020-09-18T00:45Z	0.503	false
2020-09-18T00:30Z	0.503	false
2020-09-18T00:15Z	0.504	false
2020-09-18T00:00Z	0.504	false
2020-09-17T23:45Z	0.504	false
2020-09-17T23:30Z	0.505	false
2020-09-17T23:15Z	0.505	false
2020-09-17T23:00Z	0.505	false
2020-09-17T22:45Z	0.507	false
2020-09-17T22:30Z	0.506	false
2020-09-17T22:15Z	0.507	false
2020-09-17T22:00Z	0.505	false
2020-09-17T21:45Z	0.505	false
2020-09-17T21:30Z	0.505	false
2020-09-17T21:15Z	0.505	false
2020-09-17T21:00Z	0.506	false
2020-09-17T20:45Z	0.506	false
2020-09-17T20:30Z	0.506	false
2020-09-17T20:15Z	0.506	false
2020-09-17T20:00Z	0.506	false
2020-09-17T19:45Z	0.506	false
2020-09-17T19:30Z	0.507	false
2020-09-17T19:15Z	0.506	false
2020-09-17T19:00Z	0.506	false
2020-09-17T18:45Z	0.504	false
2020-09-17T18:30Z	0.503	false
2020-09-17T18:15Z	0.502	false
2020-09-17T18:00Z	0.501	false
2020-09-17T17:45Z	0.501	false
2020-09-17T17:30Z	0.5	false
2020-09-17T17:15Z	0.498	false
2020-09-17T17:00Z	0.501	false
2020-09-17T16:45Z	0.502	false
2020-09-17T16:30Z	0.503	false
2020-09-17T16:15Z	0.506	false
2020-09-17T16:00Z	0.506	false
2020-09-17T15:45Z	0.504	false
2020-09-17T15:30Z	0.505	false
2020-09-17T15:15Z	0.505	false
2020-09-17T15:00Z	0.505	false
2020-09-17T14:45Z	0.508	false
2020-09-17T14:30Z	0.511	false
2020-09-17T14:15Z	0.507	false
2020-09-17T14:00Z	0.503	false
2020-09-17T13:45Z	0.5	false
2020-09-17T13:30Z	0.499	false
2020-09-17T13:15Z	0.5	false
2020-09-17T13:00Z	0.503	false
2020-09-17T12:45Z	0.505	false
2020-09-17T12:30Z	0.506	false
2020-09-17T12:15Z	0.509	false
2020-09-17T12:00Z	0.509	false
2020-09-17T11:45Z	0.508	false
2020-09-17T11:30Z	0.509	false
2020-09-17T11:15Z	0.509	false
2020-09-17T11:00Z	0.509	false
2020-09-17T10:45Z	0.51	false
2020-09-17T10:30Z	0.51	false
2020-09-17T10:15Z	0.511	false
2020-09-17T10:00Z	0.51	false
2020-09-17T09:45Z	0.511	false
2020-09-17T09:30Z	0.51	false
2020-09-17T09:15Z	0.509	false
2020-09-17T09:00Z	0.509	false
2020-09-17T08:45Z	0.508	false
2020-09-17T08:30Z	0.507	false
2020-09-17T08:15Z	0.509	false
2020-09-17T08:00Z	0.509	false
2020-09-17T07:45Z	0.511	false
2020-09-17T07:30Z	0.51	false
2020-09-17T07:15Z	0.505	false
2020-09-17T07:00Z	0.504	false
2020-09-17T06:45Z	0.504	false
2020-09-17T06:30Z	0.504	false
2020-09-17T06:15Z	0.504	false
2020-09-17T06:00Z	0.505	false
2020-09-17T05:45Z	0.504	false
2020-09-17T05:30Z	0.505	false
2020-09-17T05:15Z	0.506	false
2020-09-17T05:00Z	0.506	false
2020-09-17T04:45Z	0.506	false
2020-09-17T04:30Z	0.506	false
2020-09-17T04:15Z	0.506	false
2020-09-17T04:00Z	0.506	false
2020-09-17T03:45Z	0.506	false
2020-09-17T03:30Z	0.506	false
2020-09-17T03:15Z	0.507	false
2020-09-17T03:00Z	0.507	false
2020-09-17T02:45Z	0.507	false
2020-09-17T02:30Z	0.506	false
2020-09-17T02:15Z	0.508	false
2020-09-17T02:00Z	0.508	false
2020-09-17T01:45Z	0.509	false
2020-09-17T01:30Z	0.508	false
2020-09-17T01:15Z	0.509	false
2020-09-17T01:00Z	0.509	false
2020-09-17T00:45Z	0.509	false
2020-09-17T00:30Z	0.509	false
2020-09-17T00:15Z	0.51	false
2020-09-17T00:00Z	0.511	false
2020-09-16T23:45Z	0.511	false
2020-09-16T23:30Z	0.511	false
2020-09-16T23:15Z	0.511	false
2020-09-16T23:00Z	0.512	false
2020-09-16T22:45Z	0.512	false
2020-09-16T22:30Z	0.512	false
2020-09-16T22:15Z	0.512	false
2020-09-16T22:00Z	0.513	false
2020-09-16T21:45Z	0.513	false
2020-09-16T21:30Z	0.513	false
2020-09-16T21:15Z	0.513	false
2020-09-16T21:00Z	0.513	false
2020-09-16T20:45Z	0.514	false
2020-09-16T20:30Z	0.514	false
2020-09-16T20:15Z	0.515	false
2020-09-16T20:00Z	0.516	false
2020-09-16T19:45Z	0.517	false
2020-09-16T19:30Z	0.517	false
2020-09-16T19:15Z	0.517	false
2020-09-16T19:00Z	0.517	false
2020-09-16T18:45Z	0.517	false
2020-09-16T18:30Z	0.518	false
2020-09-16T18:15Z	0.516	false
2020-09-16T18:00Z	0.516	false
2020-09-16T17:45Z	0.514	false
2020-09-16T17:30Z	0.512	false
2020-09-16T17:15Z	0.513	false
2020-09-16T17:00Z	0.513	false
2020-09-16T16:45Z	0.515	false
2020-09-16T16:30Z	0.516	false
2020-09-16T16:15Z	0.515	false
2020-09-16T16:00Z	0.513	false
2020-09-16T15:45Z	0.514	false
2020-09-16T15:30Z	0.515	false
2020-09-16T15:15Z	0.516	false
2020-09-16T15:00Z	0.516	false
2020-09-16T14:45Z	0.517	false
2020-09-16T14:30Z	0.517	false
2020-09-16T14:15Z	0.519	false
2020-09-16T14:00Z	0.518	false
2020-09-16T13:45Z	0.519	false
2020-09-16T13:30Z	0.518	false
2020-09-16T13:15Z	0.518	false
2020-09-16T13:00Z	0.519	false
2020-09-16T12:45Z	0.521	false
2020-09-16T12:30Z	0.525	false
2020-09-16T12:15Z	0.529	false
2020-09-16T12:00Z	0.525	false
2020-09-16T11:45Z	0.525	false
2020-09-16T11:30Z	0.525	false
2020-09-16T11:15Z	0.527	false
2020-09-16T11:00Z	0.525	false
2020-09-16T10:45Z	0.52	false
2020-09-16T10:30Z	0.517	false
2020-09-16T10:15Z	0.516	false
2020-09-16T10:00Z	0.516	false
2020-09-16T09:45Z	0.516	false
2020-09-16T09:30Z	0.515	false
2020-09-16T09:15Z	0.515	false
2020-09-16T09:00Z	0.513	false
2020-09-16T08:45Z	0.514	false
2020-09-16T08:30Z	0.513	false
2020-09-16T08:15Z	0.512	false
2020-09-16T08:00Z	0.513	false
2020-09-16T07:45Z	0.513	false
2020-09-16T07:30Z	0.512	false
2020-09-16T07:15Z	0.511	false
2020-09-16T07:00Z	0.511	false
2020-09-16T06:45Z	0.51	false
2020-09-16T06:30Z	0.511	false
2020-09-16T06:15Z	0.509	false
2020-09-16T06:00Z	0.511	false
2020-09-16T05:45Z	0.512	false
2020-09-16T05:30Z	0.512	false
2020-09-16T05:15Z	0.51	false
2020-09-16T05:00Z	0.512	false
2020-09-16T04:45Z	0.511	false
2020-09-16T04:30Z	0.511	false
2020-09-16T04:15Z	0.511	false
2020-09-16T04:00Z	0.512	false
2020-09-16T03:45Z	0.513	false
2020-09-16T03:30Z	0.512	false
2020-09-16T03:15Z	0.512	false
2020-09-16T03:00Z	0.512	false
2020-09-16T02:45Z	0.513	false
2020-09-16T02:30Z	0.514	false
2020-09-16T02:15Z	0.514	false
2020-09-16T02:00Z	0.515	false
2020-09-16T01:45Z	0.515	false
2020-09-16T01:30Z	0.514	false
2020-09-16T01:15Z	0.515	false
2020-09-16T01:00Z	0.516	false
2020-09-16T00:45Z	0.515	false
2020-09-16T00:30Z	0.516	false
2020-09-16T00:15Z	0.517	false
2020-09-16T00:00Z	0.517	false
2020-09-15T23:45Z	0.518	false
2020-09-15T23:30Z	0.518	false
2020-09-15T23:15Z	0.518	false
2020-09-15T23:00Z	0.518	false
2020-09-15T22:45Z	0.518	false
2020-09-15T22:30Z	0.519	false
2020-09-15T22:15Z	0.519	false
2020-09-15T22:00Z	0.519	false
2020-09-15T21:45Z	0.52	false
2020-09-15T21:30Z	0.52	false
2020-09-15T21:15Z	0.521	false
2020-09-15T21:00Z	0.521	false
2020-09-15T20:45Z	0.521	false
2020-09-15T20:30Z	0.523	false
2020-09-15T20:15Z	0.524	false
2020-09-15T20:00Z	0.526	false
2020-09-15T19:45Z	0.524	false
2020-09-15T19:30Z	0.521	false
2020-09-15T19:15Z	0.52	false
2020-09-15T19:00Z	0.521	false
2020-09-15T18:45Z	0.52	false
2020-09-15T18:30Z	0.521	false
2020-09-15T18:15Z	0.52	false
2020-09-15T18:00Z	0.519	false
2020-09-15T17:45Z	0.52	false
2020-09-15T17:30Z	0.52	false
2020-09-15T17:15Z	0.52	false
2020-09-15T17:00Z	0.52	false
2020-09-15T16:45Z	0.521	false
2020-09-15T16:30Z	0.521	false
2020-09-15T16:15Z	0.522	false
2020-09-15T16:00Z	0.52	false
2020-09-15T15:45Z	0.522	false
2020-09-15T15:30Z	0.522	false
2020-09-15T15:15Z	0.522	false
2020-09-15T15:00Z	0.522	false
2020-09-15T14:45Z	0.525	false
2020-09-15T14:30Z	0.523	false
2020-09-15T14:15Z	0.523	false
2020-09-15T14:00Z	0.523	false
2020-09-15T13:45Z	0.523	false
2020-09-15T13:30Z	0.523	false
2020-09-15T13:15Z	0.527	false
2020-09-15T13:00Z	0.523	false
2020-09-15T12:45Z	0.524	false
2020-09-15T12:30Z	0.525	false
2020-09-15T12:15Z	0.524	false
2020-09-15T12:00Z	0.523	false
2020-09-15T11:45Z	0.524	false
2020-09-15T11:30Z	0.524	false
2020-09-15T11:15Z	0.524	false
2020-09-15T11:00Z	0.525	false
2020-09-15T10:45Z	0.525	false
2020-09-15T10:30Z	0.526	false
2020-09-15T10:15Z	0.527	false
2020-09-15T10:00Z	0.531	false
2020-09-15T09:45Z	0.534	false
2020-09-15T09:30Z	0.528	false
2020-09-15T09:15Z	0.525	false
2020-09-15T09:00Z	0.522	false
2020-09-15T08:45Z	0.523	false
2020-09-15T08:30Z	0.522	false
2020-09-15T08:15Z	0.521	false
2020-09-15T08:00Z	0.52	false
2020-09-15T07:45Z	0.521	false
2020-09-15T07:30Z	0.52	false
2020-09-15T07:15Z	0.52	false
2020-09-15T07:00Z	0.521	false
2020-09-15T06:45Z	0.52	false
2020-09-15T06:30Z	0.52	false
2020-09-15T06:15Z	0.52	false
2020-09-15T06:00Z	0.519	false
2020-09-15T05:45Z	0.52	false
2020-09-15T05:30Z	0.52	false
2020-09-15T05:15Z	0.523	false
2020-09-15T05:00Z	0.521	false
2020-09-15T04:45Z	0.522	false
2020-09-15T04:30Z	0.522	false
2020-09-15T04:15Z	0.522	false
2020-09-15T04:00Z	0.522	false
2020-09-15T03:45Z	0.522	false
2020-09-15T03:30Z	0.522	false
2020-09-15T03:15Z	0.523	false
2020-09-15T03:00Z	0.523	false
2020-09-15T02:45Z	0.523	false
2020-09-15T02:30Z	0.523	false
2020-09-15T02:15Z	0.524	false
2020-09-15T02:00Z	0.525	false
2020-09-15T01:45Z	0.525	false
2020-09-15T01:30Z	0.524	false
2020-09-15T01:15Z	0.524	false
2020-09-15T01:00Z	0.525	false
2020-09-15T00:45Z	0.526	false
2020-09-15T00:30Z	0.527	false
2020-09-15T00:15Z	0.526	false
2020-09-15T00:00Z	0.526	false
2020-09-14T23:45Z	0.527	false
2020-09-14T23:30Z	0.526	false
2020-09-14T23:15Z	0.527	false
2020-09-14T23:00Z	0.528	false
2020-09-14T22:45Z	0.528	false
2020-09-14T22:30Z	0.528	false
2020-09-14T22:15Z	0.529	false
2020-09-14T22:00Z	0.529	false
2020-09-14T21:45Z	0.53	false
2020-09-14T21:30Z	0.53	false
2020-09-14T21:15Z	0.531	false
2020-09-14T21:00Z	0.53	false
2020-09-14T20:45Z	0.532	false
2020-09-14T20:30Z	0.531	false
2020-09-14T20:15Z	0.531	false
2020-09-14T20:00Z	0.532	false
2020-09-14T19:45Z	0.532	false
2020-09-14T19:30Z	0.533	false
2020-09-14T19:15Z	0.534	false
2020-09-14T19:00Z	0.534	false
2020-09-14T18:45Z	0.534	false
2020-09-14T18:30Z	0.534	false
2020-09-14T18:15Z	0.535	false
2020-09-14T18:00Z	0.534	false
2020-09-14T17:45Z	0.533	false
2020-09-14T17:30Z	0.533	false
2020-09-14T17:15Z	0.535	false
2020-09-14T17:00Z	0.532	false
2020-09-14T16:45Z	0.531	false
2020-09-14T16:30Z	0.532	false
2020-09-14T16:15Z	0.533	false
2020-09-14T16:00Z	0.536	false
2020-09-14T15:45Z	0.543	false
2020-09-14T15:30Z	0.544	false
2020-09-14T15:15Z	0.538	false
2020-09-14T15:00Z	0.536	false
2020-09-14T14:45Z	0.536	false
2020-09-14T14:30Z	0.536	false
2020-09-14T14:15Z	0.536	false
2020-09-14T14:00Z	0.536	false
2020-09-14T13:45Z	0.537	false
2020-09-14T13:30Z	0.536	false
2020-09-14T13:15Z	0.537	false
2020-09-14T13:00Z	0.537	false
2020-09-14T12:45Z	0.536	false
2020-09-14T12:30Z	0.535	false
2020-09-14T12:15Z	0.535	false
2020-09-14T12:00Z	0.533	false
2020-09-14T11:45Z	0.532	false
2020-09-14T11:30Z	0.531	false
2020-09-14T11:15Z	0.532	false
2020-09-14T11:00Z	0.536	false
2020-09-14T10:45Z	0.533	false
2020-09-14T10:30Z	0.535	false
2020-09-14T10:15Z	0.535	false
2020-09-14T10:00Z	0.536	false
2020-09-14T09:45Z	0.536	false
2020-09-14T09:30Z	0.534	false
2020-09-14T09:15Z	0.534	false
2020-09-14T09:00Z	0.532	false
2020-09-14T08:45Z	0.533	false
2020-09-14T08:30Z	0.533	false
2020-09-14T08:15Z	0.532	false
2020-09-14T08:00Z	0.532	false
2020-09-14T07:45Z	0.532	false
2020-09-14T07:30Z	0.532	false
2020-09-14T07:15Z	0.532	false
2020-09-14T07:00Z	0.532	false
2020-09-14T06:45Z	0.531	false
2020-09-14T06:30Z	0.532	false
2020-09-14T06:15Z	0.531	false
2020-09-14T06:00Z	0.532	false
2020-09-14T05:45Z	0.532	false
2020-09-14T05:30Z	0.533	false
2020-09-14T05:15Z	0.532	false
2020-09-14T05:00Z	0.533	false
2020-09-14T04:45Z	0.533	false
2020-09-14T04:30Z	0.533	false
2020-09-14T04:15Z	0.533	false
2020-09-14T04:00Z	0.533	false
2020-09-14T03:45Z	0.533	false
2020-09-14T03:30Z	0.534	false
2020-09-14T03:15Z	0.533	false
2020-09-14T03:00Z	0.534	false
2020-09-14T02:45Z	0.534	false
2020-09-14T02:30Z	0.535	false
2020-09-14T02:15Z	0.535	false
2020-09-14T02:00Z	0.535	false
2020-09-14T01:45Z	0.535	false
2020-09-14T01:30Z	0.536	false
2020-09-14T01:15Z	0.537	false
2020-09-14T01:00Z	0.537	false
2020-09-14T00:45Z	0.537	false
2020-09-14T00:30Z	0.538	false
2020-09-14T00:15Z	0.538	false
2020-09-14T00:00Z	0.538	false
2020-09-13T23:45Z	0.538	false
2020-09-13T23:30Z	0.538	false
2020-09-13T23:15Z	0.54	false
2020-09-13T23:00Z	0.539	false
2020-09-13T22:45Z	0.539	false
2020-09-13T22:30Z	0.54	false
2020-09-13T22:15Z	0.541	false
2020-09-13T22:00Z	0.54	false
2020-09-13T21:45Z	0.541	false
2020-09-13T21:30Z	0.541	false
2020-09-13T21:15Z	0.54	false
2020-09-13T21:00Z	0.542	false
2020-09-13T20:45Z	0.542	false
2020-09-13T20:30Z	0.542	false
2020-09-13T20:15Z	0.542	false
2020-09-13T20:00Z	0.542	false
2020-09-13T19:45Z	0.542	false
2020-09-13T19:30Z	0.543	false
2020-09-13T19:15Z	0.543	false
2020-09-13T19:00Z	0.544	false
2020-09-13T18:45Z	0.545	false
2020-09-13T18:30Z	0.545	false
2020-09-13T18:15Z	0.545	false
2020-09-13T18:00Z	0.545	false
2020-09-13T17:45Z	0.546	false
2020-09-13T17:30Z	0.547	false
2020-09-13T17:15Z	0.546	false
2020-09-13T17:00Z	0.544	false
2020-09-13T16:45Z	0.544	false
2020-09-13T16:30Z	0.544	false
2020-09-13T16:15Z	0.544	false
2020-09-13T16:00Z	0.542	false
2020-09-13T15:45Z	0.543	false
2020-09-13T15:30Z	0.544	false
2020-09-13T15:15Z	0.543	false
2020-09-13T15:00Z	0.545	false
2020-09-13T14:45Z	0.544	false
2020-09-13T14:30Z	0.543	false
2020-09-13T14:15Z	0.542	false
2020-09-13T14:00Z	0.545	false
2020-09-13T13:45Z	0.545	false
2020-09-13T13:30Z	0.547	false
2020-09-13T13:15Z	0.549	false
2020-09-13T13:00Z	0.549	false
2020-09-13T12:45Z	0.551	false
2020-09-13T12:30Z	0.553	false
2020-09-13T12:15Z	0.553	false
2020-09-13T12:00Z	0.552	false
2020-09-13T11:45Z	0.553	false
2020-09-13T11:30Z	0.553	false
2020-09-13T11:15Z	0.553	false
2020-09-13T11:00Z	0.553	false
2020-09-13T10:45Z	0.551	false
2020-09-13T10:30Z	0.552	false
2020-09-13T10:15Z	0.549	false
2020-09-13T10:00Z	0.552	false
2020-09-13T09:45Z	0.551	false
2020-09-13T09:30Z	0.549	false
2020-09-13T09:15Z	0.551	false
2020-09-13T09:00Z	0.551	false
2020-09-13T08:45Z	0.549	false
2020-09-13T08:30Z	0.549	false
2020-09-13T08:15Z	0.549	false
2020-09-13T08:00Z	0.549	false
2020-09-13T07:45Z	0.55	false
2020-09-13T07:30Z	0.55	false
2020-09-13T07:15Z	0.551	false
2020-09-13T07:00Z	0.551	false
2020-09-13T06:45Z	0.551	false
2020-09-13T06:30Z	0.551	false
2020-09-13T06:15Z	0.551	false
2020-09-13T06:00Z	0.551	false
2020-09-13T05:45Z	0.552	false
2020-09-13T05:30Z	0.552	false

Forecast data

September 18th 2020, 6:15:00 am	0.497
September 18th 2020, 6:30:00 am	0.506
September 18th 2020, 6:45:00 am	0.517
September 18th 2020, 7:00:00 am	0.529
September 18th 2020, 7:15:00 am	0.542
September 18th 2020, 7:30:00 am	0.555
September 18th 2020, 7:45:00 am	0.567
September 18th 2020, 8:00:00 am	0.579
September 18th 2020, 8:15:00 am	0.590
September 18th 2020, 8:30:00 am	0.602
September 18th 2020, 8:45:00 am	0.613
September 18th 2020, 9:00:00 am	0.623
September 18th 2020, 9:15:00 am	0.632
September 18th 2020, 9:30:00 am	0.640
September 18th 2020, 9:45:00 am	0.650
September 18th 2020, 10:00:00 am	0.659
September 18th 2020, 10:15:00 am	0.667
September 18th 2020, 10:30:00 am	0.675
September 18th 2020, 10:45:00 am	0.683
September 18th 2020, 11:00:00 am	0.690
September 18th 2020, 11:15:00 am	0.695
September 18th 2020, 11:30:00 am	0.700
September 18th 2020, 11:45:00 am	0.701
September 18th 2020, 12:00:00 pm	0.703
September 18th 2020, 12:15:00 pm	0.705
September 18th 2020, 12:30:00 pm	0.708
September 18th 2020, 12:45:00 pm	0.713
September 18th 2020, 1:00:00 pm	0.718
September 18th 2020, 1:15:00 pm	0.722
September 18th 2020, 1:30:00 pm	0.723
September 18th 2020, 1:45:00 pm	0.722
September 18th 2020, 2:00:00 pm	0.718
September 18th 2020, 2:15:00 pm	0.713
September 18th 2020, 2:30:00 pm	0.708
September 18th 2020, 2:45:00 pm	0.702
September 18th 2020, 3:00:00 pm	0.695
September 18th 2020, 3:15:00 pm	0.689
September 18th 2020, 3:30:00 pm	0.683
September 18th 2020, 3:45:00 pm	0.678
September 18th 2020, 4:00:00 pm	0.673
September 18th 2020, 4:15:00 pm	0.669
September 18th 2020, 4:30:00 pm	0.666
September 18th 2020, 4:45:00 pm	0.663
September 18th 2020, 5:00:00 pm	0.660
September 18th 2020, 5:15:00 pm	0.659
September 18th 2020, 5:30:00 pm	0.657
September 18th 2020, 5:45:00 pm	0.657
September 18th 2020, 6:00:00 pm	0.656
September 18th 2020, 6:15:00 pm	0.657
September 18th 2020, 6:30:00 pm	0.657
September 18th 2020, 6:45:00 pm	0.658
September 18th 2020, 7:00:00 pm	0.659
September 18th 2020, 7:15:00 pm	0.660
September 18th 2020, 7:30:00 pm	0.661
September 18th 2020, 7:45:00 pm	0.663
September 18th 2020, 8:00:00 pm	0.665
September 18th 2020, 8:15:00 pm	0.666
September 18th 2020, 8:30:00 pm	0.668
September 18th 2020, 8:45:00 pm	0.670
September 18th 2020, 9:00:00 pm	0.672
September 18th 2020, 9:15:00 pm	0.674
September 18th 2020, 9:30:00 pm	0.675
September 18th 2020, 9:45:00 pm	0.677
September 18th 2020, 10:00:00 pm	0.679
September 18th 2020, 10:15:00 pm	0.681
September 18th 2020, 10:30:00 pm	0.683
September 18th 2020, 10:45:00 pm	0.684
September 18th 2020, 11:00:00 pm	0.686
September 18th 2020, 11:15:00 pm	0.687
September 18th 2020, 11:30:00 pm	0.689
September 18th 2020, 11:45:00 pm	0.691
September 19th 2020, 12:00:00 am	0.692
September 19th 2020, 12:15:00 am	0.693
September 19th 2020, 12:30:00 am	0.695
September 19th 2020, 12:45:00 am	0.696
September 19th 2020, 1:00:00 am	0.697
September 19th 2020, 1:15:00 am	0.699
September 19th 2020, 1:30:00 am	0.700
September 19th 2020, 1:45:00 am	0.701
September 19th 2020, 2:00:00 am	0.702
September 19th 2020, 2:15:00 am	0.703
September 19th 2020, 2:30:00 am	0.704
September 19th 2020, 2:45:00 am	0.705
September 19th 2020, 3:00:00 am	0.706
September 19th 2020, 3:15:00 am	0.707
September 19th 2020, 3:30:00 am	0.708
September 19th 2020, 3:45:00 am	0.709
September 19th 2020, 4:00:00 am	0.709
September 19th 2020, 4:15:00 am	0.710
September 19th 2020, 4:30:00 am	0.711
September 19th 2020, 4:45:00 am	0.711
September 19th 2020, 5:00:00 am	0.712
September 19th 2020, 5:15:00 am	0.713
September 19th 2020, 5:30:00 am	0.713
September 19th 2020, 5:45:00 am	0.714
September 19th 2020, 6:00:00 am	0.715
September 19th 2020, 6:15:00 am	0.715
September 19th 2020, 6:30:00 am	0.716
September 19th 2020, 6:45:00 am	0.716
September 19th 2020, 7:00:00 am	0.717
September 19th 2020, 7:15:00 am	0.717
September 19th 2020, 7:30:00 am	0.717
September 19th 2020, 7:45:00 am	0.718
September 19th 2020, 8:00:00 am	0.718
September 19th 2020, 8:15:00 am	0.719
September 19th 2020, 8:30:00 am	0.719
September 19th 2020, 8:45:00 am	0.719
September 19th 2020, 9:00:00 am	0.720
September 19th 2020, 9:15:00 am	0.720
September 19th 2020, 9:30:00 am	0.720
September 19th 2020, 9:45:00 am	0.720
September 19th 2020, 10:00:00 am	0.721
September 19th 2020, 10:15:00 am	0.721
September 19th 2020, 10:30:00 am	0.721
September 19th 2020, 10:45:00 am	0.721
September 19th 2020, 11:00:00 am	0.722
September 19th 2020, 11:15:00 am	0.722
September 19th 2020, 11:30:00 am	0.722
September 19th 2020, 11:45:00 am	0.722
September 19th 2020, 12:00:00 pm	0.722
September 19th 2020, 12:15:00 pm	0.722

Forecasts contain uncertainty and can change frequently. For the latest information, always check for up to date flood warnings and alerts in your area.

Key information

• Station name: Mytholmroyd Temporary site
• Station ID: 9167
• River name: River Calder
• Typical range: 0.43m to 2.65m
• Highest level on record: 5.03m on 09 February 2020
• Site datum: 88.22mAOD (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.

How are forecasts produced?

The forecasts shown here are computer models based on technical data, local conditions and Met Office rainfall predictions and may contain uncertainty. Because they’re linked to the weather, forecasts can change quickly. We update them more frequently if the risk of flooding increases.

When we issue flood warnings and alerts we assess many factors including these forecasts, local conditions, tides and the weather forecast.

Flood warnings and alerts can still be issued even if water levels at a measuring station are forecast to remain within its typical range. For the latest information, always check for up to date flood warnings and alerts.

What effect could these levels have on nearby areas?

Typical range at this location

0.43m to 2.65m.

Above 2.80m flooding of low-lying land may occur in these areas

• Upper River Calder catchment

Above 3.82m some property flooding may occur in these areas

• River Calder and Cragg Brook at Mytholmroyd
• River Calder at Central Mytholmroyd

Highest forecast level at this location

The highest level forecast in the next 36 hours is 0.72m at 1:30pm Friday 18 September 2020.

Highest level recorded at this location

5.03m on 09 February 2020

• 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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