River level River Calder at Mytholmroyd Temporary site

A flood alert is in place nearby.

Flooding is possible. Be prepared. View details.

Latest recorded level 2.76m at 3:15am Saturday 22 February 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
• Show highest recorded level

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Observed data

DateTime	Value	Error
2020-02-22T03:15Z	2.76	false
2020-02-22T03:00Z	2.822	false
2020-02-22T02:45Z	2.873	false
2020-02-22T02:30Z	2.913	false
2020-02-22T02:15Z	2.937	false
2020-02-22T02:00Z	2.935	false
2020-02-22T01:45Z	2.918	false
2020-02-22T01:30Z	2.906	false
2020-02-22T01:15Z	2.871	false
2020-02-22T01:00Z	2.862	false
2020-02-22T00:45Z	2.851	false
2020-02-22T00:30Z	2.854	false
2020-02-22T00:15Z	2.872	false
2020-02-22T00:00Z	2.865	false
2020-02-21T23:45Z	2.858	false
2020-02-21T23:30Z	2.824	false
2020-02-21T23:15Z	2.778	false
2020-02-21T23:00Z	2.721	false
2020-02-21T22:45Z	2.669	false
2020-02-21T22:30Z	2.606	false
2020-02-21T22:15Z	2.539	false
2020-02-21T22:00Z	2.469	false
2020-02-21T21:45Z	2.383	false
2020-02-21T21:30Z	2.321	false
2020-02-21T21:15Z	2.271	false
2020-02-21T21:00Z	2.235	false
2020-02-21T20:45Z	2.201	false
2020-02-21T20:30Z	2.189	false
2020-02-21T20:15Z	2.176	false
2020-02-21T20:00Z	2.162	false
2020-02-21T19:45Z	2.138	false
2020-02-21T19:30Z	2.122	false
2020-02-21T19:15Z	2.108	false
2020-02-21T19:00Z	2.078	false
2020-02-21T18:45Z	2.054	false
2020-02-21T18:30Z	2.029	false
2020-02-21T18:15Z	2.001	false
2020-02-21T18:00Z	1.955	false
2020-02-21T17:45Z	1.93	false
2020-02-21T17:30Z	1.877	false
2020-02-21T17:15Z	1.826	false
2020-02-21T17:00Z	1.79	false
2020-02-21T16:45Z	1.738	false
2020-02-21T16:30Z	1.67	false
2020-02-21T16:15Z	1.617	false
2020-02-21T16:00Z	1.567	false
2020-02-21T15:45Z	1.51	false
2020-02-21T15:30Z	1.464	false
2020-02-21T15:15Z	1.417	false
2020-02-21T15:00Z	1.401	false
2020-02-21T14:45Z	1.377	false
2020-02-21T14:30Z	1.356	false
2020-02-21T14:15Z	1.332	false
2020-02-21T14:00Z	1.321	false
2020-02-21T13:45Z	1.309	false
2020-02-21T13:30Z	1.298	false
2020-02-21T13:15Z	1.285	false
2020-02-21T13:00Z	1.271	false
2020-02-21T12:45Z	1.268	false
2020-02-21T12:30Z	1.263	false
2020-02-21T12:15Z	1.254	false
2020-02-21T12:00Z	1.252	false
2020-02-21T11:45Z	1.241	false
2020-02-21T11:30Z	1.244	false
2020-02-21T11:15Z	1.237	false
2020-02-21T11:00Z	1.241	false
2020-02-21T10:45Z	1.231	false
2020-02-21T10:30Z	1.23	false
2020-02-21T10:15Z	1.229	false
2020-02-21T10:00Z	1.228	false
2020-02-21T09:45Z	1.222	false
2020-02-21T09:30Z	1.226	false
2020-02-21T09:15Z	1.222	false
2020-02-21T09:00Z	1.223	false
2020-02-21T08:45Z	1.234	false
2020-02-21T08:30Z	1.226	false
2020-02-21T08:15Z	1.227	false
2020-02-21T08:00Z	1.234	false
2020-02-21T07:45Z	1.236	false
2020-02-21T07:30Z	1.229	false
2020-02-21T07:15Z	1.239	false
2020-02-21T07:00Z	1.244	false
2020-02-21T06:45Z	1.245	false
2020-02-21T06:30Z	1.247	false
2020-02-21T06:15Z	1.249	false
2020-02-21T06:00Z	1.253	false
2020-02-21T05:45Z	1.255	false
2020-02-21T05:30Z	1.258	false
2020-02-21T05:15Z	1.261	false
2020-02-21T05:00Z	1.269	false
2020-02-21T04:45Z	1.271	false
2020-02-21T04:30Z	1.272	false
2020-02-21T04:15Z	1.272	false
2020-02-21T04:00Z	1.278	false
2020-02-21T03:45Z	1.284	false
2020-02-21T03:30Z	1.288	false
2020-02-21T03:15Z	1.289	false
2020-02-21T03:00Z	1.291	false
2020-02-21T02:45Z	1.3	false
2020-02-21T02:30Z	1.309	false
2020-02-21T02:15Z	1.311	false
2020-02-21T02:00Z	1.313	false
2020-02-21T01:45Z	1.321	false
2020-02-21T01:30Z	1.323	false
2020-02-21T01:15Z	1.328	false
2020-02-21T01:00Z	1.339	false
2020-02-21T00:45Z	1.343	false
2020-02-21T00:30Z	1.344	false
2020-02-21T00:15Z	1.357	false
2020-02-21T00:00Z	1.358	false
2020-02-20T23:45Z	1.365	false
2020-02-20T23:30Z	1.373	false
2020-02-20T23:15Z	1.378	false
2020-02-20T23:00Z	1.387	false
2020-02-20T22:45Z	1.394	false
2020-02-20T22:30Z	1.396	false
2020-02-20T22:15Z	1.41	false
2020-02-20T22:00Z	1.419	false
2020-02-20T21:45Z	1.421	false
2020-02-20T21:30Z	1.431	false
2020-02-20T21:15Z	1.438	false
2020-02-20T21:00Z	1.453	false
2020-02-20T20:45Z	1.461	false
2020-02-20T20:30Z	1.474	false
2020-02-20T20:15Z	1.479	false
2020-02-20T20:00Z	1.498	false
2020-02-20T19:45Z	1.509	false
2020-02-20T19:30Z	1.52	false
2020-02-20T19:15Z	1.532	false
2020-02-20T19:00Z	1.54	false
2020-02-20T18:45Z	1.551	false
2020-02-20T18:30Z	1.565	false
2020-02-20T18:15Z	1.584	false
2020-02-20T18:00Z	1.602	false
2020-02-20T17:45Z	1.606	false
2020-02-20T17:30Z	1.628	false
2020-02-20T17:15Z	1.64	false
2020-02-20T17:00Z	1.656	false
2020-02-20T16:45Z	1.664	false
2020-02-20T16:30Z	1.69	false
2020-02-20T16:15Z	1.71	false
2020-02-20T16:00Z	1.724	false
2020-02-20T15:45Z	1.744	false
2020-02-20T15:30Z	1.752	false
2020-02-20T15:15Z	1.775	false
2020-02-20T15:00Z	1.798	false
2020-02-20T14:45Z	1.831	false
2020-02-20T14:30Z	1.845	false
2020-02-20T14:15Z	1.876	false
2020-02-20T14:00Z	1.897	false
2020-02-20T13:45Z	1.914	false
2020-02-20T13:30Z	1.949	false
2020-02-20T13:15Z	1.959	false
2020-02-20T13:00Z	1.973	false
2020-02-20T12:45Z	1.955	false
2020-02-20T12:30Z	1.949	false
2020-02-20T12:15Z	1.911	false
2020-02-20T12:00Z	1.891	false
2020-02-20T11:45Z	1.858	false
2020-02-20T11:30Z	1.85	false
2020-02-20T11:15Z	1.819	false
2020-02-20T11:00Z	1.784	false
2020-02-20T10:45Z	1.71	false
2020-02-20T10:30Z	1.597	false
2020-02-20T10:15Z	1.487	false
2020-02-20T10:00Z	1.401	false
2020-02-20T09:45Z	1.354	false
2020-02-20T09:30Z	1.299	false
2020-02-20T09:15Z	1.268	false
2020-02-20T09:00Z	1.251	false
2020-02-20T08:45Z	1.237	false
2020-02-20T08:30Z	1.241	false
2020-02-20T08:15Z	1.24	false
2020-02-20T08:00Z	1.243	false
2020-02-20T07:45Z	1.248	false
2020-02-20T07:30Z	1.244	false
2020-02-20T07:15Z	1.245	false
2020-02-20T07:00Z	1.256	false
2020-02-20T06:45Z	1.257	false
2020-02-20T06:30Z	1.262	false
2020-02-20T06:15Z	1.266	false
2020-02-20T06:00Z	1.267	false
2020-02-20T05:45Z	1.282	false
2020-02-20T05:30Z	1.277	false
2020-02-20T05:15Z	1.282	false
2020-02-20T05:00Z	1.286	false
2020-02-20T04:45Z	1.294	false
2020-02-20T04:30Z	1.297	false
2020-02-20T04:15Z	1.307	false
2020-02-20T04:00Z	1.313	false
2020-02-20T03:45Z	1.314	false
2020-02-20T03:30Z	1.327	false
2020-02-20T03:15Z	1.329	false
2020-02-20T03:00Z	1.331	false
2020-02-20T02:45Z	1.341	false
2020-02-20T02:30Z	1.349	false
2020-02-20T02:15Z	1.35	false
2020-02-20T02:00Z	1.365	false
2020-02-20T01:45Z	1.369	false
2020-02-20T01:30Z	1.375	false
2020-02-20T01:15Z	1.385	false
2020-02-20T01:00Z	1.386	false
2020-02-20T00:45Z	1.394	false
2020-02-20T00:30Z	1.405	false
2020-02-20T00:15Z	1.405	false
2020-02-20T00:00Z	1.412	false
2020-02-19T23:45Z	1.42	false
2020-02-19T23:30Z	1.434	false
2020-02-19T23:15Z	1.431	false
2020-02-19T23:00Z	1.431	false
2020-02-19T22:45Z	1.434	false
2020-02-19T22:30Z	1.426	false
2020-02-19T22:15Z	1.425	false
2020-02-19T22:00Z	1.409	false
2020-02-19T21:45Z	1.41	false
2020-02-19T21:30Z	1.394	false
2020-02-19T21:15Z	1.386	false
2020-02-19T21:00Z	1.362	false
2020-02-19T20:45Z	1.353	false
2020-02-19T20:30Z	1.333	false
2020-02-19T20:15Z	1.317	false
2020-02-19T20:00Z	1.295	false
2020-02-19T19:45Z	1.279	false
2020-02-19T19:30Z	1.253	false
2020-02-19T19:15Z	1.243	false
2020-02-19T19:00Z	1.221	false
2020-02-19T18:45Z	1.216	false
2020-02-19T18:30Z	1.203	false
2020-02-19T18:15Z	1.192	false
2020-02-19T18:00Z	1.18	false
2020-02-19T17:45Z	1.163	false
2020-02-19T17:30Z	1.154	false
2020-02-19T17:15Z	1.148	false
2020-02-19T17:00Z	1.143	false
2020-02-19T16:45Z	1.136	false
2020-02-19T16:30Z	1.129	false
2020-02-19T16:15Z	1.121	false
2020-02-19T16:00Z	1.115	false
2020-02-19T15:45Z	1.11	false
2020-02-19T15:30Z	1.102	false
2020-02-19T15:15Z	1.098	false
2020-02-19T15:00Z	1.099	false
2020-02-19T14:45Z	1.09	false
2020-02-19T14:30Z	1.089	false
2020-02-19T14:15Z	1.086	false
2020-02-19T14:00Z	1.081	false
2020-02-19T13:45Z	1.077	false
2020-02-19T13:30Z	1.088	false
2020-02-19T13:15Z	1.089	false
2020-02-19T13:00Z	1.106	false
2020-02-19T12:45Z	1.113	false
2020-02-19T12:30Z	1.104	false
2020-02-19T12:15Z	1.081	false
2020-02-19T12:00Z	1.082	false
2020-02-19T11:45Z	1.083	false
2020-02-19T11:30Z	1.083	false
2020-02-19T11:15Z	1.082	false
2020-02-19T11:00Z	1.083	false
2020-02-19T10:45Z	1.087	false
2020-02-19T10:30Z	1.09	false
2020-02-19T10:15Z	1.089	false
2020-02-19T10:00Z	1.091	false
2020-02-19T09:45Z	1.093	false
2020-02-19T09:30Z	1.094	false
2020-02-19T09:15Z	1.097	false
2020-02-19T09:00Z	1.1	false
2020-02-19T08:45Z	1.097	false
2020-02-19T08:30Z	1.094	false
2020-02-19T08:15Z	1.097	false
2020-02-19T08:00Z	1.102	false
2020-02-19T07:45Z	1.105	false
2020-02-19T07:30Z	1.1	false
2020-02-19T07:15Z	1.103	false
2020-02-19T07:00Z	1.102	false
2020-02-19T06:45Z	1.105	false
2020-02-19T06:30Z	1.103	false
2020-02-19T06:15Z	1.109	false
2020-02-19T06:00Z	1.111	false
2020-02-19T05:45Z	1.115	false
2020-02-19T05:30Z	1.112	false
2020-02-19T05:15Z	1.115	false
2020-02-19T05:00Z	1.117	false
2020-02-19T04:45Z	1.126	false
2020-02-19T04:30Z	1.124	false
2020-02-19T04:15Z	1.129	false
2020-02-19T04:00Z	1.125	false
2020-02-19T03:45Z	1.129	false
2020-02-19T03:30Z	1.124	false
2020-02-19T03:15Z	1.133	false
2020-02-19T03:00Z	1.133	false
2020-02-19T02:45Z	1.136	false
2020-02-19T02:30Z	1.14	false
2020-02-19T02:15Z	1.142	false
2020-02-19T02:00Z	1.14	false
2020-02-19T01:45Z	1.141	false
2020-02-19T01:30Z	1.149	false
2020-02-19T01:15Z	1.148	false
2020-02-19T01:00Z	1.147	false
2020-02-19T00:45Z	1.154	false
2020-02-19T00:30Z	1.156	false
2020-02-19T00:15Z	1.156	false
2020-02-19T00:00Z	1.161	false
2020-02-18T23:45Z	1.159	false
2020-02-18T23:30Z	1.165	false
2020-02-18T23:15Z	1.159	false
2020-02-18T23:00Z	1.158	false
2020-02-18T22:45Z	1.16	false
2020-02-18T22:30Z	1.161	false
2020-02-18T22:15Z	1.16	false
2020-02-18T22:00Z	1.167	false
2020-02-18T21:45Z	1.169	false
2020-02-18T21:30Z	1.169	false
2020-02-18T21:15Z	1.166	false
2020-02-18T21:00Z	1.171	false
2020-02-18T20:45Z	1.171	false
2020-02-18T20:30Z	1.17	false
2020-02-18T20:15Z	1.179	false
2020-02-18T20:00Z	1.181	false
2020-02-18T19:45Z	1.175	false
2020-02-18T19:30Z	1.184	false
2020-02-18T19:15Z	1.188	false
2020-02-18T19:00Z	1.183	false
2020-02-18T18:45Z	1.18	false
2020-02-18T18:30Z	1.181	false
2020-02-18T18:15Z	1.185	false
2020-02-18T18:00Z	1.179	false
2020-02-18T17:45Z	1.168	false
2020-02-18T17:30Z	1.158	false
2020-02-18T17:15Z	1.151	false
2020-02-18T17:00Z	1.149	false
2020-02-18T16:45Z	1.148	false
2020-02-18T16:30Z	1.155	false
2020-02-18T16:15Z	1.151	false
2020-02-18T16:00Z	1.149	false
2020-02-18T15:45Z	1.147	false
2020-02-18T15:30Z	1.152	false
2020-02-18T15:15Z	1.149	false
2020-02-18T15:00Z	1.147	false
2020-02-18T14:45Z	1.145	false
2020-02-18T14:30Z	1.143	false
2020-02-18T14:15Z	1.146	false
2020-02-18T14:00Z	1.143	false
2020-02-18T13:45Z	1.14	false
2020-02-18T13:30Z	1.149	false
2020-02-18T13:15Z	1.146	false
2020-02-18T13:00Z	1.149	false
2020-02-18T12:45Z	1.151	false
2020-02-18T12:30Z	1.152	false
2020-02-18T12:15Z	1.155	false
2020-02-18T12:00Z	1.156	false
2020-02-18T11:45Z	1.162	false
2020-02-18T11:30Z	1.16	false
2020-02-18T11:15Z	1.165	false
2020-02-18T11:00Z	1.166	false
2020-02-18T10:45Z	1.163	false
2020-02-18T10:30Z	1.164	false
2020-02-18T10:15Z	1.161	false
2020-02-18T10:00Z	1.168	false
2020-02-18T09:45Z	1.166	false
2020-02-18T09:30Z	1.168	false
2020-02-18T09:15Z	1.17	false
2020-02-18T09:00Z	1.169	false
2020-02-18T08:45Z	1.172	false
2020-02-18T08:30Z	1.177	false
2020-02-18T08:15Z	1.179	false
2020-02-18T08:00Z	1.176	false
2020-02-18T07:45Z	1.179	false
2020-02-18T07:30Z	1.181	false
2020-02-18T07:15Z	1.181	false
2020-02-18T07:00Z	1.191	false
2020-02-18T06:45Z	1.184	false
2020-02-18T06:30Z	1.187	false
2020-02-18T06:15Z	1.191	false
2020-02-18T06:00Z	1.196	false
2020-02-18T05:45Z	1.194	false
2020-02-18T05:30Z	1.199	false
2020-02-18T05:15Z	1.194	false
2020-02-18T05:00Z	1.2	false
2020-02-18T04:45Z	1.199	false
2020-02-18T04:30Z	1.203	false
2020-02-18T04:15Z	1.202	false
2020-02-18T04:00Z	1.207	false
2020-02-18T03:45Z	1.209	false
2020-02-18T03:30Z	1.208	false
2020-02-18T03:15Z	1.21	false
2020-02-18T03:00Z	1.21	false
2020-02-18T02:45Z	1.213	false
2020-02-18T02:30Z	1.215	false
2020-02-18T02:15Z	1.215	false
2020-02-18T02:00Z	1.221	false
2020-02-18T01:45Z	1.225	false
2020-02-18T01:30Z	1.22	false
2020-02-18T01:15Z	1.215	false
2020-02-18T01:00Z	1.225	false
2020-02-18T00:45Z	1.225	false
2020-02-18T00:30Z	1.221	false
2020-02-18T00:15Z	1.233	false
2020-02-18T00:00Z	1.235	false
2020-02-17T23:45Z	1.233	false
2020-02-17T23:30Z	1.234	false
2020-02-17T23:15Z	1.235	false
2020-02-17T23:00Z	1.239	false
2020-02-17T22:45Z	1.242	false
2020-02-17T22:30Z	1.246	false
2020-02-17T22:15Z	1.245	false
2020-02-17T22:00Z	1.248	false
2020-02-17T21:45Z	1.25	false
2020-02-17T21:30Z	1.254	false
2020-02-17T21:15Z	1.249	false
2020-02-17T21:00Z	1.251	false
2020-02-17T20:45Z	1.249	false
2020-02-17T20:30Z	1.256	false
2020-02-17T20:15Z	1.245	false
2020-02-17T20:00Z	1.242	false
2020-02-17T19:45Z	1.239	false
2020-02-17T19:30Z	1.245	false
2020-02-17T19:15Z	1.248	false
2020-02-17T19:00Z	1.249	false
2020-02-17T18:45Z	1.255	false
2020-02-17T18:30Z	1.249	false
2020-02-17T18:15Z	1.258	false
2020-02-17T18:00Z	1.261	false
2020-02-17T17:45Z	1.263	false
2020-02-17T17:30Z	1.267	false
2020-02-17T17:15Z	1.264	false
2020-02-17T17:00Z	1.265	false
2020-02-17T16:45Z	1.272	false
2020-02-17T16:30Z	1.281	false
2020-02-17T16:15Z	1.275	false
2020-02-17T16:00Z	1.282	false
2020-02-17T15:45Z	1.282	false
2020-02-17T15:30Z	1.283	false
2020-02-17T15:15Z	1.29	false
2020-02-17T15:00Z	1.294	false
2020-02-17T14:45Z	1.297	false
2020-02-17T14:30Z	1.296	false
2020-02-17T14:15Z	1.294	false
2020-02-17T14:00Z	1.298	false
2020-02-17T13:45Z	1.306	false
2020-02-17T13:30Z	1.308	false
2020-02-17T13:15Z	1.308	false
2020-02-17T13:00Z	1.315	false
2020-02-17T12:45Z	1.316	false
2020-02-17T12:30Z	1.322	false
2020-02-17T12:15Z	1.329	false
2020-02-17T12:00Z	1.328	false
2020-02-17T11:45Z	1.337	false
2020-02-17T11:30Z	1.335	false
2020-02-17T11:15Z	1.344	false
2020-02-17T11:00Z	1.346	false
2020-02-17T10:45Z	1.347	false
2020-02-17T10:30Z	1.349	false
2020-02-17T10:15Z	1.363	false
2020-02-17T10:00Z	1.356	false
2020-02-17T09:45Z	1.362	false
2020-02-17T09:30Z	1.371	false
2020-02-17T09:15Z	1.373	false
2020-02-17T09:00Z	1.374	false
2020-02-17T08:45Z	1.381	false
2020-02-17T08:30Z	1.387	false
2020-02-17T08:15Z	1.395	false
2020-02-17T08:00Z	1.395	false
2020-02-17T07:45Z	1.41	false
2020-02-17T07:30Z	1.405	false
2020-02-17T07:15Z	1.417	false
2020-02-17T07:00Z	1.413	false
2020-02-17T06:45Z	1.419	false
2020-02-17T06:30Z	1.43	false
2020-02-17T06:15Z	1.432	false
2020-02-17T06:00Z	1.426	false
2020-02-17T05:45Z	1.437	false
2020-02-17T05:30Z	1.446	false
2020-02-17T05:15Z	1.449	false
2020-02-17T05:00Z	1.463	false
2020-02-17T04:45Z	1.46	false
2020-02-17T04:30Z	1.469	false
2020-02-17T04:15Z	1.481	false
2020-02-17T04:00Z	1.477	false
2020-02-17T03:45Z	1.481	false
2020-02-17T03:30Z	1.484	false
2020-02-17T03:15Z	1.499	false

Forecast data

February 22nd 2020, 3:15:00 am	2.760
February 22nd 2020, 3:30:00 am	2.697
February 22nd 2020, 3:45:00 am	2.633
February 22nd 2020, 4:00:00 am	2.574
February 22nd 2020, 4:15:00 am	2.517
February 22nd 2020, 4:30:00 am	2.462
February 22nd 2020, 4:45:00 am	2.408
February 22nd 2020, 5:00:00 am	2.357
February 22nd 2020, 5:15:00 am	2.308
February 22nd 2020, 5:30:00 am	2.263
February 22nd 2020, 5:45:00 am	2.228
February 22nd 2020, 6:00:00 am	2.202
February 22nd 2020, 6:15:00 am	2.177
February 22nd 2020, 6:30:00 am	2.151
February 22nd 2020, 6:45:00 am	2.123
February 22nd 2020, 7:00:00 am	2.101
February 22nd 2020, 7:15:00 am	2.087
February 22nd 2020, 7:30:00 am	2.080
February 22nd 2020, 7:45:00 am	2.078
February 22nd 2020, 8:00:00 am	2.076
February 22nd 2020, 8:15:00 am	2.075
February 22nd 2020, 8:30:00 am	2.071
February 22nd 2020, 8:45:00 am	2.066
February 22nd 2020, 9:00:00 am	2.058
February 22nd 2020, 9:15:00 am	2.048
February 22nd 2020, 9:30:00 am	2.037
February 22nd 2020, 9:45:00 am	2.024
February 22nd 2020, 10:00:00 am	2.010
February 22nd 2020, 10:15:00 am	1.995
February 22nd 2020, 10:30:00 am	1.980
February 22nd 2020, 10:45:00 am	1.964
February 22nd 2020, 11:00:00 am	1.948
February 22nd 2020, 11:15:00 am	1.932
February 22nd 2020, 11:30:00 am	1.916
February 22nd 2020, 11:45:00 am	1.900
February 22nd 2020, 12:00:00 pm	1.885
February 22nd 2020, 12:15:00 pm	1.870
February 22nd 2020, 12:30:00 pm	1.855
February 22nd 2020, 12:45:00 pm	1.841
February 22nd 2020, 1:00:00 pm	1.827
February 22nd 2020, 1:15:00 pm	1.814
February 22nd 2020, 1:30:00 pm	1.801
February 22nd 2020, 1:45:00 pm	1.789
February 22nd 2020, 2:00:00 pm	1.778
February 22nd 2020, 2:15:00 pm	1.766
February 22nd 2020, 2:30:00 pm	1.755
February 22nd 2020, 2:45:00 pm	1.745
February 22nd 2020, 3:00:00 pm	1.735
February 22nd 2020, 3:15:00 pm	1.725
February 22nd 2020, 3:30:00 pm	1.716
February 22nd 2020, 3:45:00 pm	1.707
February 22nd 2020, 4:00:00 pm	1.698
February 22nd 2020, 4:15:00 pm	1.689
February 22nd 2020, 4:30:00 pm	1.681
February 22nd 2020, 4:45:00 pm	1.673
February 22nd 2020, 5:00:00 pm	1.666
February 22nd 2020, 5:15:00 pm	1.658
February 22nd 2020, 5:30:00 pm	1.651
February 22nd 2020, 5:45:00 pm	1.644
February 22nd 2020, 6:00:00 pm	1.637
February 22nd 2020, 6:15:00 pm	1.630
February 22nd 2020, 6:30:00 pm	1.624
February 22nd 2020, 6:45:00 pm	1.617
February 22nd 2020, 7:00:00 pm	1.611
February 22nd 2020, 7:15:00 pm	1.605
February 22nd 2020, 7:30:00 pm	1.599
February 22nd 2020, 7:45:00 pm	1.593
February 22nd 2020, 8:00:00 pm	1.587
February 22nd 2020, 8:15:00 pm	1.581
February 22nd 2020, 8:30:00 pm	1.576
February 22nd 2020, 8:45:00 pm	1.571
February 22nd 2020, 9:00:00 pm	1.567
February 22nd 2020, 9:15:00 pm	1.562
February 22nd 2020, 9:30:00 pm	1.558
February 22nd 2020, 9:45:00 pm	1.553
February 22nd 2020, 10:00:00 pm	1.548
February 22nd 2020, 10:15:00 pm	1.543
February 22nd 2020, 10:30:00 pm	1.539
February 22nd 2020, 10:45:00 pm	1.534
February 22nd 2020, 11:00:00 pm	1.531
February 22nd 2020, 11:15:00 pm	1.530
February 22nd 2020, 11:30:00 pm	1.531
February 22nd 2020, 11:45:00 pm	1.537
February 23rd 2020, 12:00:00 am	1.547
February 23rd 2020, 12:15:00 am	1.562
February 23rd 2020, 12:30:00 am	1.585
February 23rd 2020, 12:45:00 am	1.620
February 23rd 2020, 1:00:00 am	1.661
February 23rd 2020, 1:15:00 am	1.710
February 23rd 2020, 1:30:00 am	1.763
February 23rd 2020, 1:45:00 am	1.819
February 23rd 2020, 2:00:00 am	1.877
February 23rd 2020, 2:15:00 am	1.934
February 23rd 2020, 2:30:00 am	1.991
February 23rd 2020, 2:45:00 am	2.048
February 23rd 2020, 3:00:00 am	2.105
February 23rd 2020, 3:15:00 am	2.179

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 2.80m
• Highest level on record: 5.03m on 09 February 2020 (awaiting validation)
• 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 2.80m.

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

• Upper River Calder catchment Flood alert

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 2.76m at 3:15am Saturday 22 February 2020.

Highest level recorded at this location

5.03m on 09 February 2020 (awaiting validation)

• View nearby measuring stations

• View the flood information service for England
• View your property's long term risk of flooding

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