River level River Ingrebourne at Harold Park

Check for flood warnings in this area

Latest recorded level 1.15m at 6:00pm Tuesday 12 November 2019.

River levels at this location in the last 5 days

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• Measured level
• When the water level reaches 1.80m 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
2019-11-12T18:00Z	1.151	false
2019-11-12T17:45Z	1.153	false
2019-11-12T17:30Z	1.155	false
2019-11-12T17:15Z	1.158	false
2019-11-12T17:00Z	1.161	false
2019-11-12T16:45Z	1.166	false
2019-11-12T16:30Z	1.171	false
2019-11-12T16:15Z	1.174	false
2019-11-12T16:00Z	1.175	false
2019-11-12T15:45Z	1.172	false
2019-11-12T15:30Z	1.166	false
2019-11-12T15:15Z	1.16	false
2019-11-12T15:00Z	1.154	false
2019-11-12T14:45Z	1.149	false
2019-11-12T14:30Z	1.145	false
2019-11-12T14:15Z	1.141	false
2019-11-12T14:00Z	1.137	false
2019-11-12T13:45Z	1.134	false
2019-11-12T13:30Z	1.131	false
2019-11-12T13:15Z	1.123	false
2019-11-12T13:00Z	1.121	false
2019-11-12T12:45Z	1.124	false
2019-11-12T12:30Z	1.128	false
2019-11-12T12:15Z	1.134	false
2019-11-12T12:00Z	1.138	false
2019-11-12T11:45Z	1.142	false
2019-11-12T11:30Z	1.147	false
2019-11-12T11:15Z	1.152	false
2019-11-12T11:00Z	1.158	false
2019-11-12T10:45Z	1.162	false
2019-11-12T10:30Z	1.163	false
2019-11-12T10:15Z	1.161	false
2019-11-12T10:00Z	1.156	false
2019-11-12T09:45Z	1.15	false
2019-11-12T09:30Z	1.142	false
2019-11-12T09:15Z	1.133	false
2019-11-12T09:00Z	1.124	false
2019-11-12T08:45Z	1.115	false
2019-11-12T08:30Z	1.109	false
2019-11-12T08:15Z	1.106	false
2019-11-12T08:00Z	1.105	false
2019-11-12T07:45Z	1.105	false
2019-11-12T07:30Z	1.105	false
2019-11-12T07:15Z	1.106	false
2019-11-12T07:00Z	1.107	false
2019-11-12T06:45Z	1.108	false
2019-11-12T06:30Z	1.109	false
2019-11-12T06:15Z	1.11	false
2019-11-12T06:00Z	1.11	false
2019-11-12T05:45Z	1.111	false
2019-11-12T05:30Z	1.111	false
2019-11-12T05:15Z	1.111	false
2019-11-12T05:00Z	1.112	false
2019-11-12T04:45Z	1.113	false
2019-11-12T04:30Z	1.115	false
2019-11-12T04:30Z	1.115	false
2019-11-12T04:15Z	1.117	false
2019-11-12T04:15Z	1.117	false
2019-11-12T04:00Z	1.118	false
2019-11-12T04:00Z	1.118	false
2019-11-12T03:45Z	1.12	false
2019-11-12T03:45Z	1.12	false
2019-11-12T03:30Z	1.122	false
2019-11-12T03:30Z	1.122	false
2019-11-12T03:15Z	1.125	false
2019-11-12T03:15Z	1.125	false
2019-11-12T03:00Z	1.129	false
2019-11-12T03:00Z	1.129	false
2019-11-12T02:45Z	1.133	false
2019-11-12T02:45Z	1.133	false
2019-11-12T02:30Z	1.137	false
2019-11-12T02:30Z	1.137	false
2019-11-12T02:15Z	1.141	false
2019-11-12T02:15Z	1.141	false
2019-11-12T02:00Z	1.145	false
2019-11-12T02:00Z	1.145	false
2019-11-12T01:45Z	1.15	false
2019-11-12T01:45Z	1.15	false
2019-11-12T01:30Z	1.153	false
2019-11-12T01:30Z	1.153	false
2019-11-12T01:15Z	1.157	false
2019-11-12T01:15Z	1.157	false
2019-11-12T01:00Z	1.161	false
2019-11-12T01:00Z	1.161	false
2019-11-12T00:45Z	1.166	false
2019-11-12T00:45Z	1.166	false
2019-11-12T00:30Z	1.172	false
2019-11-12T00:30Z	1.172	false
2019-11-12T00:15Z	1.177	false
2019-11-12T00:15Z	1.177	false
2019-11-12T00:00Z	1.183	false
2019-11-11T23:45Z	1.189	false
2019-11-11T23:30Z	1.196	false
2019-11-11T23:15Z	1.202	false
2019-11-11T23:00Z	1.208	false
2019-11-11T22:45Z	1.212	false
2019-11-11T22:30Z	1.214	false
2019-11-11T22:15Z	1.215	false
2019-11-11T22:00Z	1.216	false
2019-11-11T21:45Z	1.218	false
2019-11-11T21:30Z	1.219	false
2019-11-11T21:15Z	1.221	false
2019-11-11T21:00Z	1.221	false
2019-11-11T20:45Z	1.221	false
2019-11-11T20:30Z	1.22	false
2019-11-11T20:15Z	1.22	false
2019-11-11T20:00Z	1.22	false
2019-11-11T19:45Z	1.22	false
2019-11-11T19:30Z	1.22	false
2019-11-11T19:15Z	1.22	false
2019-11-11T19:00Z	1.22	false
2019-11-11T18:45Z	1.221	false
2019-11-11T18:30Z	1.221	false
2019-11-11T18:15Z	1.223	false
2019-11-11T18:00Z	1.226	false
2019-11-11T18:00Z	1.226	false
2019-11-11T17:45Z	1.231	false
2019-11-11T17:45Z	1.231	false
2019-11-11T17:30Z	1.235	false
2019-11-11T17:30Z	1.235	false
2019-11-11T17:15Z	1.24	false
2019-11-11T17:15Z	1.24	false
2019-11-11T17:00Z	1.246	false
2019-11-11T17:00Z	1.246	false
2019-11-11T16:45Z	1.251	false
2019-11-11T16:45Z	1.251	false
2019-11-11T16:30Z	1.253	false
2019-11-11T16:30Z	1.253	false
2019-11-11T16:15Z	1.255	false
2019-11-11T16:15Z	1.255	false
2019-11-11T16:00Z	1.257	false
2019-11-11T16:00Z	1.257	false
2019-11-11T15:45Z	1.259	false
2019-11-11T15:45Z	1.259	false
2019-11-11T15:30Z	1.26	false
2019-11-11T15:30Z	1.26	false
2019-11-11T15:15Z	1.258	false
2019-11-11T15:15Z	1.258	false
2019-11-11T15:00Z	1.254	false
2019-11-11T15:00Z	1.254	false
2019-11-11T14:45Z	1.251	false
2019-11-11T14:45Z	1.251	false
2019-11-11T14:30Z	1.248	false
2019-11-11T14:30Z	1.248	false
2019-11-11T14:15Z	1.245	false
2019-11-11T14:15Z	1.245	false
2019-11-11T14:00Z	1.245	false
2019-11-11T14:00Z	1.245	false
2019-11-11T13:45Z	1.243	false
2019-11-11T13:45Z	1.243	false
2019-11-11T13:30Z	1.242	false
2019-11-11T13:30Z	1.242	false
2019-11-11T13:15Z	1.243	false
2019-11-11T13:15Z	1.243	false
2019-11-11T13:00Z	1.242	false
2019-11-11T13:00Z	1.242	false
2019-11-11T12:45Z	1.243	false
2019-11-11T12:45Z	1.243	false
2019-11-11T12:30Z	1.245	false
2019-11-11T12:30Z	1.245	false
2019-11-11T12:15Z	1.247	false
2019-11-11T12:15Z	1.247	false
2019-11-11T12:00Z	1.251	false
2019-11-11T12:00Z	1.251	false
2019-11-11T11:45Z	1.256	false
2019-11-11T11:45Z	1.256	false
2019-11-11T11:30Z	1.262	false
2019-11-11T11:30Z	1.262	false
2019-11-11T11:15Z	1.269	false
2019-11-11T11:15Z	1.269	false
2019-11-11T11:00Z	1.276	false
2019-11-11T11:00Z	1.276	false
2019-11-11T10:45Z	1.284	false
2019-11-11T10:45Z	1.284	false
2019-11-11T10:30Z	1.294	false
2019-11-11T10:30Z	1.294	false
2019-11-11T10:15Z	1.306	false
2019-11-11T10:15Z	1.306	false
2019-11-11T10:00Z	1.317	false
2019-11-11T10:00Z	1.317	false
2019-11-11T09:45Z	1.325	false
2019-11-11T09:45Z	1.325	false
2019-11-11T09:30Z	1.333	false
2019-11-11T09:30Z	1.333	false
2019-11-11T09:15Z	1.334	false
2019-11-11T09:00Z	1.329	false
2019-11-11T08:45Z	1.321	false
2019-11-11T08:30Z	1.319	false
2019-11-11T08:15Z	1.325	false
2019-11-11T08:00Z	1.339	false
2019-11-11T07:45Z	1.361	false
2019-11-11T07:30Z	1.384	false
2019-11-11T07:15Z	1.407	false
2019-11-11T07:00Z	1.433	false
2019-11-11T06:45Z	1.442	false
2019-11-11T06:30Z	1.409	false
2019-11-11T06:15Z	1.377	false
2019-11-11T06:00Z	1.321	false
2019-11-11T05:45Z	1.246	false
2019-11-11T05:30Z	1.157	false
2019-11-11T05:15Z	1.084	false
2019-11-11T05:00Z	1.058	false
2019-11-11T04:45Z	1.045	false
2019-11-11T04:30Z	1.035	false
2019-11-11T04:15Z	1.023	false
2019-11-11T04:00Z	1.015	false
2019-11-11T03:45Z	1.012	false
2019-11-11T03:30Z	1.014	false
2019-11-11T03:15Z	1.02	false
2019-11-11T03:00Z	1.026	false
2019-11-11T02:45Z	1.032	false
2019-11-11T02:30Z	1.039	false
2019-11-11T02:15Z	1.045	false
2019-11-11T02:00Z	1.052	false
2019-11-11T01:45Z	1.059	false
2019-11-11T01:30Z	1.064	false
2019-11-11T01:15Z	1.069	false
2019-11-11T01:00Z	1.074	false
2019-11-11T00:45Z	1.08	false
2019-11-11T00:30Z	1.085	false
2019-11-11T00:15Z	1.091	false
2019-11-11T00:00Z	1.096	false
2019-11-10T23:45Z	1.1	false
2019-11-10T23:30Z	1.103	false
2019-11-10T23:15Z	1.106	false
2019-11-10T23:00Z	1.109	false
2019-11-10T22:45Z	1.112	false
2019-11-10T22:30Z	1.114	false
2019-11-10T22:15Z	1.116	false
2019-11-10T22:00Z	1.117	false
2019-11-10T21:45Z	1.117	false
2019-11-10T21:30Z	1.117	false
2019-11-10T21:15Z	1.118	false
2019-11-10T21:00Z	1.119	false
2019-11-10T20:45Z	1.12	false
2019-11-10T20:30Z	1.119	false
2019-11-10T20:15Z	1.118	false
2019-11-10T20:00Z	1.115	false
2019-11-10T19:45Z	1.113	false
2019-11-10T19:30Z	1.11	false
2019-11-10T19:15Z	1.109	false
2019-11-10T19:00Z	1.108	false
2019-11-10T18:45Z	1.108	false
2019-11-10T18:30Z	1.109	false
2019-11-10T18:15Z	1.11	false
2019-11-10T18:00Z	1.111	false
2019-11-10T17:45Z	1.113	false
2019-11-10T17:30Z	1.115	false
2019-11-10T17:15Z	1.116	false
2019-11-10T17:00Z	1.119	false
2019-11-10T16:45Z	1.122	false
2019-11-10T16:30Z	1.124	false
2019-11-10T16:15Z	1.126	false
2019-11-10T16:00Z	1.128	false
2019-11-10T15:45Z	1.129	false
2019-11-10T15:30Z	1.13	false
2019-11-10T15:15Z	1.132	false
2019-11-10T15:00Z	1.132	false
2019-11-10T14:45Z	1.136	false
2019-11-10T14:30Z	1.14	false
2019-11-10T14:15Z	1.144	false
2019-11-10T14:00Z	1.149	false
2019-11-10T13:45Z	1.152	false
2019-11-10T13:30Z	1.153	false
2019-11-10T13:15Z	1.154	false
2019-11-10T13:00Z	1.156	false
2019-11-10T12:45Z	1.157	false
2019-11-10T12:30Z	1.157	false
2019-11-10T12:15Z	1.157	false
2019-11-10T12:00Z	1.156	false
2019-11-10T11:45Z	1.15	false
2019-11-10T11:30Z	1.143	false
2019-11-10T11:15Z	1.134	false
2019-11-10T11:00Z	1.126	false
2019-11-10T10:45Z	1.116	false
2019-11-10T10:30Z	1.105	false
2019-11-10T10:15Z	1.093	false
2019-11-10T10:00Z	1.085	false
2019-11-10T09:45Z	1.083	false
2019-11-10T09:30Z	1.081	false
2019-11-10T09:15Z	1.079	false
2019-11-10T09:00Z	1.08	false
2019-11-10T08:45Z	1.081	false
2019-11-10T08:30Z	1.083	false
2019-11-10T08:15Z	1.084	false
2019-11-10T08:00Z	1.086	false
2019-11-10T07:45Z	1.088	false
2019-11-10T07:30Z	1.089	false
2019-11-10T07:15Z	1.089	false
2019-11-10T07:00Z	1.089	false
2019-11-10T06:45Z	1.089	false
2019-11-10T06:30Z	1.09	false
2019-11-10T06:15Z	1.089	false
2019-11-10T06:00Z	1.085	false
2019-11-10T05:45Z	1.077	false
2019-11-10T05:30Z	1.07	false
2019-11-10T05:15Z	1.067	false
2019-11-10T05:00Z	1.066	false
2019-11-10T04:45Z	1.068	false
2019-11-10T04:30Z	1.073	false
2019-11-10T04:15Z	1.08	false
2019-11-10T04:00Z	1.085	false
2019-11-10T03:45Z	1.089	false
2019-11-10T03:30Z	1.09	false
2019-11-10T03:15Z	1.092	false
2019-11-10T03:00Z	1.097	false
2019-11-10T02:45Z	1.103	false
2019-11-10T02:30Z	1.11	false
2019-11-10T02:15Z	1.117	false
2019-11-10T02:00Z	1.124	false
2019-11-10T01:45Z	1.132	false
2019-11-10T01:30Z	1.14	false
2019-11-10T01:15Z	1.148	false
2019-11-10T01:00Z	1.157	false
2019-11-10T00:45Z	1.165	false
2019-11-10T00:30Z	1.171	false
2019-11-10T00:15Z	1.177	false
2019-11-10T00:00Z	1.184	false
2019-11-09T23:45Z	1.192	false
2019-11-09T23:30Z	1.202	false
2019-11-09T23:15Z	1.213	false
2019-11-09T23:00Z	1.222	false
2019-11-09T22:45Z	1.228	false
2019-11-09T22:30Z	1.23	false
2019-11-09T22:15Z	1.224	false
2019-11-09T22:00Z	1.216	false
2019-11-09T21:45Z	1.212	false
2019-11-09T21:30Z	1.21	false
2019-11-09T21:15Z	1.209	false
2019-11-09T21:00Z	1.209	false
2019-11-09T20:45Z	1.209	false
2019-11-09T20:30Z	1.208	false
2019-11-09T20:15Z	1.209	false
2019-11-09T20:00Z	1.207	false
2019-11-09T19:45Z	1.193	false
2019-11-09T19:30Z	1.177	false
2019-11-09T19:15Z	1.159	false
2019-11-09T19:00Z	1.146	false
2019-11-09T18:45Z	1.136	false
2019-11-09T18:30Z	1.128	false
2019-11-09T18:15Z	1.12	false
2019-11-09T18:00Z	1.112	false
2019-11-09T17:45Z	1.107	false
2019-11-09T17:30Z	1.103	false
2019-11-09T17:15Z	1.101	false
2019-11-09T17:00Z	1.099	false
2019-11-09T16:45Z	1.1	false
2019-11-09T16:30Z	1.101	false
2019-11-09T16:15Z	1.102	false
2019-11-09T16:00Z	1.104	false
2019-11-09T15:45Z	1.105	false
2019-11-09T15:30Z	1.107	false
2019-11-09T15:15Z	1.111	false
2019-11-09T15:00Z	1.116	false
2019-11-09T14:45Z	1.121	false
2019-11-09T14:30Z	1.126	false
2019-11-09T14:15Z	1.13	false
2019-11-09T14:00Z	1.132	false
2019-11-09T13:45Z	1.133	false
2019-11-09T13:30Z	1.132	false
2019-11-09T13:15Z	1.131	false
2019-11-09T13:00Z	1.131	false
2019-11-09T12:45Z	1.133	false
2019-11-09T12:30Z	1.135	false
2019-11-09T12:15Z	1.136	false
2019-11-09T12:00Z	1.132	false
2019-11-09T11:45Z	1.125	false
2019-11-09T11:30Z	1.114	false
2019-11-09T11:15Z	1.101	false
2019-11-09T11:00Z	1.085	false
2019-11-09T10:45Z	1.068	false
2019-11-09T10:30Z	1.049	false
2019-11-09T10:15Z	1.032	false
2019-11-09T10:00Z	1.017	false
2019-11-09T09:45Z	1.003	false
2019-11-09T09:30Z	0.993	false
2019-11-09T09:15Z	0.984	false
2019-11-09T09:00Z	0.978	false
2019-11-09T08:45Z	0.973	false
2019-11-09T08:30Z	0.97	false
2019-11-09T08:15Z	0.968	false
2019-11-09T08:00Z	0.966	false
2019-11-09T07:45Z	0.965	false
2019-11-09T07:30Z	0.965	false
2019-11-09T07:15Z	0.965	false
2019-11-09T07:00Z	0.967	false
2019-11-09T06:45Z	0.969	false
2019-11-09T06:30Z	0.97	false
2019-11-09T06:15Z	0.972	false
2019-11-09T06:00Z	0.973	false
2019-11-09T05:45Z	0.973	false
2019-11-09T05:30Z	0.975	false
2019-11-09T05:15Z	0.976	false
2019-11-09T05:00Z	0.978	false
2019-11-09T04:45Z	0.982	false
2019-11-09T04:30Z	0.987	false
2019-11-09T04:15Z	0.993	false
2019-11-09T04:00Z	1	false
2019-11-09T03:45Z	1.006	false
2019-11-09T03:30Z	1.013	false
2019-11-09T03:15Z	1.02	false
2019-11-09T03:00Z	1.028	false
2019-11-09T02:45Z	1.038	false
2019-11-09T02:30Z	1.047	false
2019-11-09T02:15Z	1.056	false
2019-11-09T02:00Z	1.065	false
2019-11-09T01:45Z	1.073	false
2019-11-09T01:30Z	1.08	false
2019-11-09T01:15Z	1.087	false
2019-11-09T01:00Z	1.094	false
2019-11-09T00:45Z	1.1	false
2019-11-09T00:30Z	1.105	false
2019-11-09T00:15Z	1.108	false
2019-11-09T00:00Z	1.111	false
2019-11-08T23:45Z	1.112	false
2019-11-08T23:30Z	1.112	false
2019-11-08T23:15Z	1.111	false
2019-11-08T23:00Z	1.11	false
2019-11-08T22:45Z	1.108	false
2019-11-08T22:30Z	1.101	false
2019-11-08T22:15Z	1.096	false
2019-11-08T22:00Z	1.092	false
2019-11-08T21:45Z	1.087	false
2019-11-08T21:30Z	1.084	false
2019-11-08T21:15Z	1.082	false
2019-11-08T21:00Z	1.08	false
2019-11-08T20:45Z	1.078	false
2019-11-08T20:30Z	1.075	false
2019-11-08T20:15Z	1.072	false
2019-11-08T20:00Z	1.071	false
2019-11-08T19:45Z	1.068	false
2019-11-08T19:30Z	1.066	false
2019-11-08T19:15Z	1.064	false
2019-11-08T19:00Z	1.063	false
2019-11-08T18:45Z	1.062	false
2019-11-08T18:30Z	1.06	false
2019-11-08T18:15Z	1.059	false
2019-11-08T18:00Z	1.06	false
2019-11-08T17:45Z	1.061	false
2019-11-08T17:30Z	1.064	false
2019-11-08T17:15Z	1.067	false
2019-11-08T17:00Z	1.072	false
2019-11-08T16:45Z	1.078	false
2019-11-08T16:30Z	1.083	false
2019-11-08T16:15Z	1.087	false
2019-11-08T16:00Z	1.089	false
2019-11-08T15:45Z	1.09	false
2019-11-08T15:30Z	1.088	false
2019-11-08T15:15Z	1.086	false
2019-11-08T15:00Z	1.085	false
2019-11-08T14:45Z	1.085	false
2019-11-08T14:30Z	1.084	false
2019-11-08T14:15Z	1.083	false
2019-11-08T14:00Z	1.082	false
2019-11-08T13:45Z	1.083	false
2019-11-08T13:30Z	1.084	false
2019-11-08T13:15Z	1.085	false
2019-11-08T13:00Z	1.085	false
2019-11-08T12:45Z	1.085	false
2019-11-08T12:30Z	1.084	false
2019-11-08T12:15Z	1.085	false
2019-11-08T12:00Z	1.086	false
2019-11-08T11:45Z	1.088	false
2019-11-08T11:30Z	1.09	false
2019-11-08T11:15Z	1.092	false
2019-11-08T11:00Z	1.093	false
2019-11-08T10:45Z	1.096	false
2019-11-08T10:30Z	1.097	false
2019-11-08T10:15Z	1.096	false
2019-11-08T10:00Z	1.091	false
2019-11-08T09:45Z	1.081	false
2019-11-08T09:30Z	1.066	false
2019-11-08T09:15Z	1.045	false
2019-11-08T09:00Z	1.024	false
2019-11-08T08:45Z	1.004	false
2019-11-08T08:30Z	0.989	false
2019-11-08T08:15Z	0.977	false
2019-11-08T08:00Z	0.97	false
2019-11-08T07:45Z	0.967	false
2019-11-08T07:30Z	0.97	false
2019-11-08T07:15Z	0.974	false
2019-11-08T07:00Z	0.981	false
2019-11-08T06:45Z	0.989	false
2019-11-08T06:30Z	0.996	false
2019-11-08T06:15Z	1.003	false
2019-11-08T06:00Z	1.01	false
2019-11-08T05:45Z	1.014	false
2019-11-08T05:30Z	1.015	false
2019-11-08T05:15Z	1.015	false
2019-11-08T05:00Z	1.015	false
2019-11-08T04:45Z	1.018	false
2019-11-08T04:30Z	1.02	false
2019-11-08T04:15Z	1.023	false
2019-11-08T04:00Z	1.026	false
2019-11-08T03:45Z	1.028	false
2019-11-08T03:30Z	1.031	false
2019-11-08T03:15Z	1.035	false
2019-11-08T03:00Z	1.038	false
2019-11-08T02:45Z	1.041	false
2019-11-08T02:30Z	1.044	false
2019-11-08T02:15Z	1.047	false
2019-11-08T02:00Z	1.049	false
2019-11-08T01:45Z	1.051	false
2019-11-08T01:30Z	1.053	false
2019-11-08T01:15Z	1.055	false
2019-11-08T01:00Z	1.057	false
2019-11-08T00:45Z	1.06	false
2019-11-08T00:30Z	1.062	false
2019-11-08T00:15Z	1.065	false
2019-11-08T00:00Z	1.069	false
2019-11-07T23:45Z	1.072	false
2019-11-07T23:30Z	1.075	false
2019-11-07T23:15Z	1.078	false
2019-11-07T23:00Z	1.081	false
2019-11-07T22:45Z	1.083	false
2019-11-07T22:30Z	1.085	false
2019-11-07T22:15Z	1.086	false
2019-11-07T22:00Z	1.086	false
2019-11-07T21:45Z	1.087	false
2019-11-07T21:30Z	1.088	false
2019-11-07T21:15Z	1.087	false
2019-11-07T21:00Z	1.085	false
2019-11-07T20:45Z	1.082	false
2019-11-07T20:30Z	1.076	false
2019-11-07T20:15Z	1.071	false
2019-11-07T20:00Z	1.068	false
2019-11-07T19:45Z	1.067	false
2019-11-07T19:30Z	1.066	false
2019-11-07T19:15Z	1.065	false
2019-11-07T19:00Z	1.065	false
2019-11-07T18:45Z	1.064	false
2019-11-07T18:30Z	1.063	false
2019-11-07T18:15Z	1.063	false
2019-11-07T18:00Z	1.063	false
2019-11-07T17:45Z	1.062	false
2019-11-07T17:30Z	1.062	false
2019-11-07T17:15Z	1.062	false
2019-11-07T17:00Z	1.062	false
2019-11-07T16:45Z	1.063	false
2019-11-07T16:30Z	1.063	false
2019-11-07T16:15Z	1.063	false
2019-11-07T16:00Z	1.061	false
2019-11-07T15:45Z	1.06	false
2019-11-07T15:30Z	1.058	false
2019-11-07T15:15Z	1.054	false
2019-11-07T15:00Z	1.049	false
2019-11-07T14:45Z	1.042	false
2019-11-07T14:30Z	1.035	false
2019-11-07T14:15Z	1.033	false
2019-11-07T14:00Z	1.038	false
2019-11-07T13:45Z	1.049	false
2019-11-07T13:30Z	1.062	false
2019-11-07T13:15Z	1.077	false
2019-11-07T13:00Z	1.092	false
2019-11-07T12:45Z	1.105	false
2019-11-07T12:30Z	1.114	false
2019-11-07T12:15Z	1.122	false

Forecast data

Key information

• Station name: Harold Park
• Station ID: 7384
• River name: River Ingrebourne
• Typical range: -0.23m to 1.80m
• Highest level on record: 2.76m on 08 July 2012
• Site datum: 25.00mAOD (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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