River level River Lark at Fornham St Martin

Check for flood warnings in this area

Latest recorded level 0.31m at 6:00am Wednesday 29 January 2020.

River levels at this location in the last 5 days

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• Measured level
• When the water level reaches 0.39m 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
2020-01-29T06:00Z	0.305	false
2020-01-29T05:45Z	0.306	false
2020-01-29T05:30Z	0.307	false
2020-01-29T05:15Z	0.308	false
2020-01-29T05:00Z	0.309	false
2020-01-29T04:45Z	0.311	false
2020-01-29T04:30Z	0.311	false
2020-01-29T04:15Z	0.312	false
2020-01-29T04:00Z	0.312	false
2020-01-29T03:45Z	0.314	false
2020-01-29T03:30Z	0.315	false
2020-01-29T03:15Z	0.315	false
2020-01-29T03:00Z	0.317	false
2020-01-29T02:45Z	0.319	false
2020-01-29T02:30Z	0.319	false
2020-01-29T02:15Z	0.319	false
2020-01-29T02:00Z	0.321	false
2020-01-29T01:45Z	0.322	false
2020-01-29T01:30Z	0.323	false
2020-01-29T01:15Z	0.324	false
2020-01-29T01:00Z	0.324	false
2020-01-29T00:45Z	0.326	false
2020-01-29T00:30Z	0.328	false
2020-01-29T00:15Z	0.327	false
2020-01-29T00:00Z	0.328	false
2020-01-28T23:45Z	0.33	false
2020-01-28T23:30Z	0.331	false
2020-01-28T23:15Z	0.332	false
2020-01-28T23:00Z	0.332	false
2020-01-28T22:45Z	0.333	false
2020-01-28T22:30Z	0.333	false
2020-01-28T22:15Z	0.335	false
2020-01-28T22:00Z	0.337	false
2020-01-28T21:45Z	0.336	false
2020-01-28T21:30Z	0.337	false
2020-01-28T21:15Z	0.34	false
2020-01-28T21:00Z	0.339	false
2020-01-28T20:45Z	0.341	false
2020-01-28T20:30Z	0.342	false
2020-01-28T20:15Z	0.343	false
2020-01-28T20:00Z	0.343	false
2020-01-28T19:45Z	0.344	false
2020-01-28T19:30Z	0.345	false
2020-01-28T19:15Z	0.347	false
2020-01-28T19:00Z	0.348	false
2020-01-28T18:45Z	0.348	false
2020-01-28T18:30Z	0.349	false
2020-01-28T18:15Z	0.351	false
2020-01-28T18:00Z	0.353	false
2020-01-28T17:45Z	0.353	false
2020-01-28T17:30Z	0.353	false
2020-01-28T17:15Z	0.354	false
2020-01-28T17:00Z	0.356	false
2020-01-28T16:45Z	0.355	false
2020-01-28T16:30Z	0.357	false
2020-01-28T16:15Z	0.358	false
2020-01-28T16:00Z	0.358	false
2020-01-28T15:45Z	0.36	false
2020-01-28T15:30Z	0.36	false
2020-01-28T15:15Z	0.362	false
2020-01-28T15:00Z	0.362	false
2020-01-28T14:45Z	0.362	false
2020-01-28T14:30Z	0.364	false
2020-01-28T14:15Z	0.364	false
2020-01-28T14:00Z	0.365	false
2020-01-28T13:45Z	0.364	false
2020-01-28T13:30Z	0.367	false
2020-01-28T13:15Z	0.366	false
2020-01-28T13:00Z	0.366	false
2020-01-28T12:45Z	0.368	false
2020-01-28T12:30Z	0.368	false
2020-01-28T12:15Z	0.369	false
2020-01-28T12:00Z	0.367	false
2020-01-28T11:45Z	0.369	false
2020-01-28T11:30Z	0.369	false
2020-01-28T11:15Z	0.368	false
2020-01-28T11:00Z	0.369	false
2020-01-28T10:45Z	0.369	false
2020-01-28T10:30Z	0.369	false
2020-01-28T10:15Z	0.369	false
2020-01-28T10:00Z	0.369	false
2020-01-28T09:45Z	0.369	false
2020-01-28T09:30Z	0.369	false
2020-01-28T09:15Z	0.368	false
2020-01-28T09:00Z	0.365	false
2020-01-28T08:45Z	0.366	false
2020-01-28T08:30Z	0.366	false
2020-01-28T08:15Z	0.365	false
2020-01-28T08:00Z	0.362	false
2020-01-28T07:45Z	0.36	false
2020-01-28T07:30Z	0.361	false
2020-01-28T07:15Z	0.36	false
2020-01-28T07:00Z	0.358	false
2020-01-28T06:45Z	0.355	false
2020-01-28T06:30Z	0.353	false
2020-01-28T06:15Z	0.352	false
2020-01-28T06:00Z	0.35	false
2020-01-28T05:45Z	0.347	false
2020-01-28T05:30Z	0.346	false
2020-01-28T05:15Z	0.342	false
2020-01-28T05:00Z	0.34	false
2020-01-28T04:45Z	0.335	false
2020-01-28T04:30Z	0.332	false
2020-01-28T04:15Z	0.327	false
2020-01-28T04:00Z	0.321	false
2020-01-28T03:45Z	0.317	false
2020-01-28T03:30Z	0.311	false
2020-01-28T03:15Z	0.305	false
2020-01-28T03:00Z	0.298	false
2020-01-28T02:45Z	0.291	false
2020-01-28T02:30Z	0.284	false
2020-01-28T02:15Z	0.277	false
2020-01-28T02:00Z	0.269	false
2020-01-28T01:45Z	0.261	false
2020-01-28T01:30Z	0.253	false
2020-01-28T01:15Z	0.247	false
2020-01-28T01:00Z	0.241	false
2020-01-28T00:45Z	0.237	false
2020-01-28T00:30Z	0.233	false
2020-01-28T00:15Z	0.23	false
2020-01-28T00:00Z	0.227	false
2020-01-27T23:45Z	0.226	false
2020-01-27T23:30Z	0.225	false
2020-01-27T23:15Z	0.225	false
2020-01-27T23:00Z	0.226	false
2020-01-27T22:45Z	0.229	false
2020-01-27T22:30Z	0.231	false
2020-01-27T22:15Z	0.235	false
2020-01-27T22:00Z	0.239	false
2020-01-27T21:45Z	0.244	false
2020-01-27T21:30Z	0.249	false
2020-01-27T21:15Z	0.255	false
2020-01-27T21:00Z	0.258	false
2020-01-27T20:45Z	0.264	false
2020-01-27T20:30Z	0.267	false
2020-01-27T20:15Z	0.274	false
2020-01-27T20:00Z	0.282	false
2020-01-27T19:45Z	0.29	false
2020-01-27T19:30Z	0.297	false
2020-01-27T19:15Z	0.303	false
2020-01-27T19:00Z	0.305	false
2020-01-27T18:45Z	0.298	false
2020-01-27T18:30Z	0.288	false
2020-01-27T18:15Z	0.271	false
2020-01-27T18:00Z	0.245	false
2020-01-27T17:45Z	0.218	false
2020-01-27T17:30Z	0.196	false
2020-01-27T17:15Z	0.184	false
2020-01-27T17:00Z	0.177	false
2020-01-27T16:45Z	0.175	false
2020-01-27T16:30Z	0.175	false
2020-01-27T16:15Z	0.175	false
2020-01-27T16:00Z	0.175	false
2020-01-27T15:45Z	0.173	false
2020-01-27T15:30Z	0.174	false
2020-01-27T15:15Z	0.174	false
2020-01-27T15:00Z	0.173	false
2020-01-27T14:45Z	0.174	false
2020-01-27T14:30Z	0.174	false
2020-01-27T14:15Z	0.174	false
2020-01-27T14:00Z	0.174	false
2020-01-27T13:45Z	0.174	false
2020-01-27T13:30Z	0.174	false
2020-01-27T13:15Z	0.175	false
2020-01-27T13:00Z	0.175	false
2020-01-27T12:45Z	0.175	false
2020-01-27T12:30Z	0.175	false
2020-01-27T12:15Z	0.175	false
2020-01-27T12:00Z	0.175	false
2020-01-27T11:45Z	0.175	false
2020-01-27T11:30Z	0.174	false
2020-01-27T11:15Z	0.175	false
2020-01-27T11:00Z	0.175	false
2020-01-27T10:45Z	0.176	false
2020-01-27T10:30Z	0.176	false
2020-01-27T10:15Z	0.177	false
2020-01-27T10:00Z	0.177	false
2020-01-27T09:45Z	0.177	false
2020-01-27T09:30Z	0.179	false
2020-01-27T09:15Z	0.179	false
2020-01-27T09:00Z	0.179	false
2020-01-27T08:45Z	0.179	false
2020-01-27T08:30Z	0.18	false
2020-01-27T08:15Z	0.179	false
2020-01-27T08:00Z	0.179	false
2020-01-27T07:45Z	0.18	false
2020-01-27T07:30Z	0.18	false
2020-01-27T07:15Z	0.179	false
2020-01-27T07:00Z	0.179	false
2020-01-27T06:45Z	0.18	false
2020-01-27T06:30Z	0.179	false
2020-01-27T06:15Z	0.179	false
2020-01-27T06:00Z	0.18	false
2020-01-27T05:45Z	0.179	false
2020-01-27T05:30Z	0.179	false
2020-01-27T05:15Z	0.179	false
2020-01-27T05:00Z	0.18	false
2020-01-27T04:45Z	0.18	false
2020-01-27T04:30Z	0.18	false
2020-01-27T04:15Z	0.179	false
2020-01-27T04:00Z	0.18	false
2020-01-27T03:45Z	0.18	false
2020-01-27T03:30Z	0.181	false
2020-01-27T03:15Z	0.18	false
2020-01-27T03:00Z	0.18	false
2020-01-27T02:45Z	0.181	false
2020-01-27T02:30Z	0.181	false
2020-01-27T02:15Z	0.181	false
2020-01-27T02:00Z	0.181	false
2020-01-27T01:45Z	0.182	false
2020-01-27T01:30Z	0.182	false
2020-01-27T01:15Z	0.181	false
2020-01-27T01:00Z	0.182	false
2020-01-27T00:45Z	0.184	false
2020-01-27T00:30Z	0.184	false
2020-01-27T00:15Z	0.186	false
2020-01-27T00:00Z	0.186	false
2020-01-26T23:45Z	0.188	false
2020-01-26T23:30Z	0.188	false
2020-01-26T23:15Z	0.188	false
2020-01-26T23:00Z	0.189	false
2020-01-26T22:45Z	0.188	false
2020-01-26T22:30Z	0.188	false
2020-01-26T22:15Z	0.187	false
2020-01-26T22:00Z	0.187	false
2020-01-26T21:45Z	0.187	false
2020-01-26T21:30Z	0.186	false
2020-01-26T21:15Z	0.186	false
2020-01-26T21:00Z	0.184	false
2020-01-26T20:45Z	0.184	false
2020-01-26T20:30Z	0.181	false
2020-01-26T20:15Z	0.181	false
2020-01-26T20:00Z	0.18	false
2020-01-26T19:45Z	0.179	false
2020-01-26T19:30Z	0.179	false
2020-01-26T19:15Z	0.18	false
2020-01-26T19:00Z	0.18	false
2020-01-26T18:45Z	0.179	false
2020-01-26T18:30Z	0.177	false
2020-01-26T18:15Z	0.177	false
2020-01-26T18:00Z	0.177	false
2020-01-26T17:45Z	0.178	false
2020-01-26T17:30Z	0.177	false
2020-01-26T17:15Z	0.177	false
2020-01-26T17:00Z	0.177	false
2020-01-26T16:45Z	0.176	false
2020-01-26T16:30Z	0.177	false
2020-01-26T16:15Z	0.176	false
2020-01-26T16:00Z	0.177	false
2020-01-26T15:45Z	0.177	false
2020-01-26T15:30Z	0.176	false
2020-01-26T15:15Z	0.176	false
2020-01-26T15:00Z	0.176	false
2020-01-26T14:45Z	0.175	false
2020-01-26T14:30Z	0.176	false
2020-01-26T14:15Z	0.176	false
2020-01-26T14:00Z	0.176	false
2020-01-26T13:45Z	0.176	false
2020-01-26T13:30Z	0.175	false
2020-01-26T13:15Z	0.175	false
2020-01-26T13:00Z	0.176	false
2020-01-26T12:45Z	0.175	false
2020-01-26T12:30Z	0.176	false
2020-01-26T12:15Z	0.175	false
2020-01-26T12:00Z	0.175	false
2020-01-26T11:45Z	0.175	false
2020-01-26T11:30Z	0.176	false
2020-01-26T11:15Z	0.175	false
2020-01-26T11:00Z	0.175	false
2020-01-26T10:45Z	0.175	false
2020-01-26T10:30Z	0.174	false
2020-01-26T10:15Z	0.175	false
2020-01-26T10:00Z	0.176	false
2020-01-26T09:45Z	0.176	false
2020-01-26T09:30Z	0.176	false
2020-01-26T09:15Z	0.175	false
2020-01-26T09:00Z	0.176	false
2020-01-26T08:45Z	0.177	false
2020-01-26T08:30Z	0.176	false
2020-01-26T08:15Z	0.176	false
2020-01-26T08:00Z	0.176	false
2020-01-26T07:45Z	0.176	false
2020-01-26T07:30Z	0.175	false
2020-01-26T07:15Z	0.177	false
2020-01-26T07:00Z	0.175	false
2020-01-26T06:45Z	0.176	false
2020-01-26T06:30Z	0.176	false
2020-01-26T06:15Z	0.176	false
2020-01-26T06:00Z	0.176	false
2020-01-26T05:45Z	0.176	false
2020-01-26T05:30Z	0.176	false
2020-01-26T05:15Z	0.176	false
2020-01-26T05:00Z	0.176	false
2020-01-26T04:45Z	0.177	false
2020-01-26T04:30Z	0.176	false
2020-01-26T04:15Z	0.176	false
2020-01-26T04:00Z	0.176	false
2020-01-26T03:45Z	0.176	false
2020-01-26T03:30Z	0.177	false
2020-01-26T03:15Z	0.177	false
2020-01-26T03:00Z	0.176	false
2020-01-26T02:45Z	0.177	false
2020-01-26T02:30Z	0.177	false
2020-01-26T02:15Z	0.176	false
2020-01-26T02:00Z	0.178	false
2020-01-26T01:45Z	0.177	false
2020-01-26T01:30Z	0.177	false
2020-01-26T01:15Z	0.176	false
2020-01-26T01:00Z	0.177	false
2020-01-26T00:45Z	0.177	false
2020-01-26T00:30Z	0.177	false
2020-01-26T00:15Z	0.177	false
2020-01-26T00:00Z	0.177	false
2020-01-25T23:45Z	0.177	false
2020-01-25T23:30Z	0.177	false
2020-01-25T23:15Z	0.177	false
2020-01-25T23:00Z	0.177	false
2020-01-25T22:45Z	0.177	false
2020-01-25T22:30Z	0.177	false
2020-01-25T22:15Z	0.177	false
2020-01-25T22:00Z	0.177	false
2020-01-25T21:45Z	0.177	false
2020-01-25T21:30Z	0.177	false
2020-01-25T21:15Z	0.177	false
2020-01-25T21:00Z	0.177	false
2020-01-25T20:45Z	0.178	false
2020-01-25T20:30Z	0.177	false
2020-01-25T20:15Z	0.177	false
2020-01-25T20:00Z	0.178	false
2020-01-25T19:45Z	0.177	false
2020-01-25T19:30Z	0.177	false
2020-01-25T19:15Z	0.177	false
2020-01-25T19:00Z	0.178	false
2020-01-25T18:45Z	0.177	false
2020-01-25T18:30Z	0.178	false
2020-01-25T18:15Z	0.177	false
2020-01-25T18:00Z	0.178	false
2020-01-25T17:45Z	0.178	false
2020-01-25T17:30Z	0.178	false
2020-01-25T17:15Z	0.179	false
2020-01-25T17:00Z	0.178	false
2020-01-25T16:45Z	0.178	false
2020-01-25T16:30Z	0.178	false
2020-01-25T16:15Z	0.178	false
2020-01-25T16:00Z	0.178	false
2020-01-25T15:45Z	0.178	false
2020-01-25T15:30Z	0.178	false
2020-01-25T15:15Z	0.177	false
2020-01-25T15:00Z	0.178	false
2020-01-25T14:45Z	0.178	false
2020-01-25T14:30Z	0.178	false
2020-01-25T14:15Z	0.178	false
2020-01-25T14:00Z	0.178	false
2020-01-25T13:45Z	0.178	false
2020-01-25T13:30Z	0.178	false
2020-01-25T13:15Z	0.177	false
2020-01-25T13:00Z	0.177	false
2020-01-25T12:45Z	0.178	false
2020-01-25T12:30Z	0.178	false
2020-01-25T12:15Z	0.177	false
2020-01-25T12:00Z	0.178	false
2020-01-25T11:45Z	0.178	false
2020-01-25T11:30Z	0.179	false
2020-01-25T11:15Z	0.178	false
2020-01-25T11:00Z	0.179	false
2020-01-25T10:45Z	0.179	false
2020-01-25T10:30Z	0.179	false
2020-01-25T10:15Z	0.179	false
2020-01-25T10:00Z	0.179	false
2020-01-25T09:45Z	0.179	false
2020-01-25T09:30Z	0.18	false
2020-01-25T09:15Z	0.18	false
2020-01-25T09:00Z	0.179	false
2020-01-25T08:45Z	0.18	false
2020-01-25T08:30Z	0.18	false
2020-01-25T08:15Z	0.18	false
2020-01-25T08:00Z	0.179	false
2020-01-25T07:45Z	0.179	false
2020-01-25T07:30Z	0.179	false
2020-01-25T07:15Z	0.179	false
2020-01-25T07:00Z	0.18	false
2020-01-25T06:45Z	0.182	false
2020-01-25T06:30Z	0.181	false
2020-01-25T06:15Z	0.181	false
2020-01-25T06:00Z	0.18	false
2020-01-25T05:45Z	0.18	false
2020-01-25T05:30Z	0.18	false
2020-01-25T05:15Z	0.181	false
2020-01-25T05:00Z	0.181	false
2020-01-25T04:45Z	0.181	false
2020-01-25T04:30Z	0.181	false
2020-01-25T04:15Z	0.181	false
2020-01-25T04:00Z	0.182	false
2020-01-25T03:45Z	0.182	false
2020-01-25T03:30Z	0.181	false
2020-01-25T03:15Z	0.182	false
2020-01-25T03:00Z	0.183	false
2020-01-25T02:45Z	0.182	false
2020-01-25T02:30Z	0.182	false
2020-01-25T02:15Z	0.183	false
2020-01-25T02:00Z	0.183	false
2020-01-25T01:45Z	0.182	false
2020-01-25T01:30Z	0.183	false
2020-01-25T01:15Z	0.183	false
2020-01-25T01:00Z	0.182	false
2020-01-25T00:45Z	0.183	false
2020-01-25T00:30Z	0.184	false
2020-01-25T00:15Z	0.183	false
2020-01-25T00:00Z	0.183	false
2020-01-24T23:45Z	0.183	false
2020-01-24T23:30Z	0.184	false
2020-01-24T23:15Z	0.184	false
2020-01-24T23:00Z	0.184	false
2020-01-24T22:45Z	0.184	false
2020-01-24T22:30Z	0.184	false
2020-01-24T22:15Z	0.184	false
2020-01-24T22:00Z	0.185	false
2020-01-24T21:45Z	0.185	false
2020-01-24T21:30Z	0.185	false
2020-01-24T21:15Z	0.185	false
2020-01-24T21:00Z	0.186	false
2020-01-24T20:45Z	0.185	false
2020-01-24T20:30Z	0.185	false
2020-01-24T20:15Z	0.185	false
2020-01-24T20:00Z	0.185	false
2020-01-24T19:45Z	0.186	false
2020-01-24T19:30Z	0.186	false
2020-01-24T19:15Z	0.186	false
2020-01-24T19:00Z	0.186	false
2020-01-24T18:45Z	0.186	false
2020-01-24T18:30Z	0.186	false
2020-01-24T18:15Z	0.186	false
2020-01-24T18:00Z	0.186	false
2020-01-24T17:45Z	0.185	false
2020-01-24T17:30Z	0.186	false
2020-01-24T17:15Z	0.186	false
2020-01-24T17:00Z	0.186	false
2020-01-24T16:45Z	0.186	false
2020-01-24T16:30Z	0.186	false
2020-01-24T16:15Z	0.186	false
2020-01-24T16:00Z	0.186	false
2020-01-24T15:45Z	0.187	false
2020-01-24T15:30Z	0.186	false
2020-01-24T15:15Z	0.186	false
2020-01-24T15:00Z	0.187	false
2020-01-24T14:45Z	0.187	false
2020-01-24T14:30Z	0.186	false
2020-01-24T14:15Z	0.186	false
2020-01-24T14:00Z	0.186	false
2020-01-24T13:45Z	0.186	false
2020-01-24T13:30Z	0.185	false
2020-01-24T13:15Z	0.186	false
2020-01-24T13:00Z	0.187	false
2020-01-24T12:45Z	0.186	false
2020-01-24T12:30Z	0.187	false
2020-01-24T12:15Z	0.187	false
2020-01-24T12:00Z	0.187	false
2020-01-24T11:45Z	0.187	false
2020-01-24T11:30Z	0.186	false
2020-01-24T11:15Z	0.186	false
2020-01-24T11:00Z	0.186	false
2020-01-24T10:45Z	0.186	false
2020-01-24T10:30Z	0.186	false
2020-01-24T10:15Z	0.186	false
2020-01-24T10:00Z	0.186	false
2020-01-24T09:45Z	0.186	false
2020-01-24T09:30Z	0.185	false
2020-01-24T09:15Z	0.186	false
2020-01-24T09:00Z	0.185	false
2020-01-24T08:45Z	0.186	false
2020-01-24T08:30Z	0.185	false
2020-01-24T08:15Z	0.186	false
2020-01-24T08:00Z	0.186	false
2020-01-24T07:45Z	0.185	false
2020-01-24T07:30Z	0.185	false
2020-01-24T07:15Z	0.185	false
2020-01-24T07:00Z	0.185	false
2020-01-24T06:45Z	0.185	false
2020-01-24T06:30Z	0.185	false
2020-01-24T06:15Z	0.186	false

Forecast data

Key information

• Station name: Fornham St Martin
• Station ID: 6255
• River name: River Lark
• Typical range: 0.08m to 0.39m
• Highest level on record: 1.13m on 03 January 2003
• Site datum: 24.75mAOD (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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