River level Chalgrove Brook at Chalgrove (upstream data)

Check for flood warnings in this area

Latest recorded level 1.09m at 4:30am Sunday 17 November 2019.

View downstream data for this station

Why are there 2 sets of data for this station?

Some monitoring stations are located near to a man-made structure which affects the river's flow characteristics, for example a weir, or lock. For these stations, we provide river levels from both the upstream and downstream sides of the structure.

River levels at this location in the last 5 days

Now
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• Measured level
• When the water level reaches 1.75m 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
2019-11-17T04:30Z	1.088	false
2019-11-17T04:15Z	1.088	false
2019-11-17T04:00Z	1.088	false
2019-11-17T03:45Z	1.088	false
2019-11-17T03:30Z	1.089	false
2019-11-17T03:15Z	1.089	false
2019-11-17T03:00Z	1.089	false
2019-11-17T02:45Z	1.089	false
2019-11-17T02:30Z	1.088	false
2019-11-17T02:15Z	1.089	false
2019-11-17T02:00Z	1.089	false
2019-11-17T01:45Z	1.089	false
2019-11-17T01:30Z	1.089	false
2019-11-17T01:15Z	1.089	false
2019-11-17T01:00Z	1.09	false
2019-11-17T00:45Z	1.09	false
2019-11-17T00:30Z	1.089	false
2019-11-17T00:15Z	1.09	false
2019-11-17T00:00Z	1.09	false
2019-11-16T23:45Z	1.09	false
2019-11-16T23:30Z	1.091	false
2019-11-16T23:15Z	1.091	false
2019-11-16T23:00Z	1.09	false
2019-11-16T22:45Z	1.091	false
2019-11-16T22:30Z	1.09	false
2019-11-16T22:15Z	1.09	false
2019-11-16T22:00Z	1.091	false
2019-11-16T21:45Z	1.091	false
2019-11-16T21:30Z	1.091	false
2019-11-16T21:15Z	1.091	false
2019-11-16T21:00Z	1.091	false
2019-11-16T20:45Z	1.091	false
2019-11-16T20:30Z	1.092	false
2019-11-16T20:15Z	1.093	false
2019-11-16T20:00Z	1.092	false
2019-11-16T19:45Z	1.092	false
2019-11-16T19:30Z	1.092	false
2019-11-16T19:15Z	1.092	false
2019-11-16T19:00Z	1.093	false
2019-11-16T18:45Z	1.093	false
2019-11-16T18:30Z	1.092	false
2019-11-16T18:15Z	1.094	false
2019-11-16T18:00Z	1.094	false
2019-11-16T17:45Z	1.094	false
2019-11-16T17:30Z	1.094	false
2019-11-16T17:15Z	1.095	false
2019-11-16T17:00Z	1.095	false
2019-11-16T16:45Z	1.095	false
2019-11-16T16:30Z	1.096	false
2019-11-16T16:15Z	1.096	false
2019-11-16T16:00Z	1.096	false
2019-11-16T15:45Z	1.096	false
2019-11-16T15:30Z	1.097	false
2019-11-16T15:15Z	1.097	false
2019-11-16T15:00Z	1.096	false
2019-11-16T14:45Z	1.097	false
2019-11-16T14:30Z	1.097	false
2019-11-16T14:15Z	1.097	false
2019-11-16T14:00Z	1.097	false
2019-11-16T13:45Z	1.097	false
2019-11-16T13:30Z	1.097	false
2019-11-16T13:15Z	1.098	false
2019-11-16T13:00Z	1.098	false
2019-11-16T12:45Z	1.097	false
2019-11-16T12:30Z	1.097	false
2019-11-16T12:15Z	1.098	false
2019-11-16T12:00Z	1.098	false
2019-11-16T11:45Z	1.098	false
2019-11-16T11:30Z	1.098	false
2019-11-16T11:15Z	1.098	false
2019-11-16T11:00Z	1.098	false
2019-11-16T10:45Z	1.098	false
2019-11-16T10:30Z	1.099	false
2019-11-16T10:15Z	1.099	false
2019-11-16T10:00Z	1.098	false
2019-11-16T09:45Z	1.1	false
2019-11-16T09:30Z	1.101	false
2019-11-16T09:15Z	1.101	false
2019-11-16T09:00Z	1.101	false
2019-11-16T08:45Z	1.101	false
2019-11-16T08:30Z	1.102	false
2019-11-16T08:15Z	1.103	false
2019-11-16T08:00Z	1.103	false
2019-11-16T07:45Z	1.102	false
2019-11-16T07:30Z	1.104	false
2019-11-16T07:15Z	1.104	false
2019-11-16T07:00Z	1.103	false
2019-11-16T06:45Z	1.104	false
2019-11-16T06:30Z	1.105	false
2019-11-16T06:15Z	1.105	false
2019-11-16T06:00Z	1.106	false
2019-11-16T05:45Z	1.106	false
2019-11-16T05:30Z	1.107	false
2019-11-16T05:15Z	1.108	false
2019-11-16T05:00Z	1.111	false
2019-11-16T04:45Z	1.112	false
2019-11-16T04:30Z	1.113	false
2019-11-16T04:15Z	1.114	false
2019-11-16T04:00Z	1.114	false
2019-11-16T03:45Z	1.115	false
2019-11-16T03:30Z	1.114	false
2019-11-16T03:15Z	1.114	false
2019-11-16T03:00Z	1.113	false
2019-11-16T02:45Z	1.113	false
2019-11-16T02:30Z	1.112	false
2019-11-16T02:15Z	1.11	false
2019-11-16T02:00Z	1.11	false
2019-11-16T01:45Z	1.109	false
2019-11-16T01:30Z	1.111	false
2019-11-16T01:15Z	1.11	false
2019-11-16T01:00Z	1.11	false
2019-11-16T00:45Z	1.111	false
2019-11-16T00:30Z	1.11	false
2019-11-16T00:15Z	1.109	false
2019-11-16T00:00Z	1.109	false
2019-11-15T23:45Z	1.11	false
2019-11-15T23:30Z	1.108	false
2019-11-15T23:15Z	1.109	false
2019-11-15T23:00Z	1.11	false
2019-11-15T22:45Z	1.109	false
2019-11-15T22:30Z	1.11	false
2019-11-15T22:15Z	1.109	false
2019-11-15T22:00Z	1.11	false
2019-11-15T21:45Z	1.109	false
2019-11-15T21:30Z	1.109	false
2019-11-15T21:15Z	1.11	false
2019-11-15T21:00Z	1.11	false
2019-11-15T20:45Z	1.11	false
2019-11-15T20:30Z	1.11	false
2019-11-15T20:15Z	1.11	false
2019-11-15T20:00Z	1.112	false
2019-11-15T19:45Z	1.111	false
2019-11-15T19:30Z	1.111	false
2019-11-15T19:15Z	1.112	false
2019-11-15T19:00Z	1.112	false
2019-11-15T18:45Z	1.112	false
2019-11-15T18:30Z	1.112	false
2019-11-15T18:15Z	1.112	false
2019-11-15T18:00Z	1.114	false
2019-11-15T17:45Z	1.114	false
2019-11-15T17:30Z	1.113	false
2019-11-15T17:15Z	1.115	false
2019-11-15T17:00Z	1.114	false
2019-11-15T16:45Z	1.115	false
2019-11-15T16:30Z	1.116	false
2019-11-15T16:15Z	1.116	false
2019-11-15T16:00Z	1.117	false
2019-11-15T15:45Z	1.118	false
2019-11-15T15:30Z	1.119	false
2019-11-15T15:15Z	1.117	false
2019-11-15T15:00Z	1.118	false
2019-11-15T14:45Z	1.12	false
2019-11-15T14:30Z	1.12	false
2019-11-15T14:15Z	1.12	false
2019-11-15T14:00Z	1.12	false
2019-11-15T13:45Z	1.121	false
2019-11-15T13:30Z	1.122	false
2019-11-15T13:15Z	1.123	false
2019-11-15T13:00Z	1.123	false
2019-11-15T12:45Z	1.123	false
2019-11-15T12:30Z	1.124	false
2019-11-15T12:15Z	1.122	false
2019-11-15T12:15Z	1.122	false
2019-11-15T12:00Z	1.124	false
2019-11-15T11:45Z	1.124	false
2019-11-15T11:30Z	1.125	false
2019-11-15T11:15Z	1.125	false
2019-11-15T11:00Z	1.127	false
2019-11-15T10:45Z	1.126	false
2019-11-15T10:30Z	1.128	false
2019-11-15T10:15Z	1.129	false
2019-11-15T10:00Z	1.13	false
2019-11-15T09:45Z	1.132	false
2019-11-15T09:30Z	1.133	false
2019-11-15T09:15Z	1.132	false
2019-11-15T09:00Z	1.136	false
2019-11-15T08:45Z	1.134	false
2019-11-15T08:30Z	1.135	false
2019-11-15T08:15Z	1.137	false
2019-11-15T08:00Z	1.139	false
2019-11-15T07:45Z	1.139	false
2019-11-15T07:30Z	1.141	false
2019-11-15T07:15Z	1.142	false
2019-11-15T07:00Z	1.143	false
2019-11-15T06:45Z	1.144	false
2019-11-15T06:30Z	1.144	false
2019-11-15T06:15Z	1.145	false
2019-11-15T06:00Z	1.147	false
2019-11-15T06:00Z	1.147	false
2019-11-15T05:45Z	1.147	false
2019-11-15T05:30Z	1.149	false
2019-11-15T05:15Z	1.15	false
2019-11-15T05:00Z	1.152	false
2019-11-15T04:45Z	1.15	false
2019-11-15T04:30Z	1.152	false
2019-11-15T04:15Z	1.154	false
2019-11-15T04:00Z	1.155	false
2019-11-15T03:45Z	1.154	false
2019-11-15T03:30Z	1.156	false
2019-11-15T03:15Z	1.158	false
2019-11-15T03:00Z	1.16	false
2019-11-15T02:45Z	1.161	false
2019-11-15T02:30Z	1.163	false
2019-11-15T02:15Z	1.161	false
2019-11-15T02:00Z	1.165	false
2019-11-15T01:45Z	1.166	false
2019-11-15T01:30Z	1.167	false
2019-11-15T01:15Z	1.17	false
2019-11-15T01:00Z	1.171	false
2019-11-15T00:45Z	1.175	false
2019-11-15T00:30Z	1.176	false
2019-11-15T00:15Z	1.176	false
2019-11-15T00:00Z	1.178	false
2019-11-14T23:45Z	1.179	false
2019-11-14T23:30Z	1.181	false
2019-11-14T23:30Z	1.181	false
2019-11-14T23:15Z	1.184	false
2019-11-14T23:00Z	1.183	false
2019-11-14T22:45Z	1.185	false
2019-11-14T22:30Z	1.189	false
2019-11-14T22:15Z	1.193	false
2019-11-14T22:00Z	1.193	false
2019-11-14T21:45Z	1.196	false
2019-11-14T21:30Z	1.199	false
2019-11-14T21:15Z	1.2	false
2019-11-14T21:00Z	1.203	false
2019-11-14T20:45Z	1.205	false
2019-11-14T20:30Z	1.205	false
2019-11-14T20:15Z	1.208	false
2019-11-14T20:00Z	1.21	false
2019-11-14T19:45Z	1.215	false
2019-11-14T19:30Z	1.215	false
2019-11-14T19:15Z	1.22	false
2019-11-14T19:00Z	1.222	false
2019-11-14T18:45Z	1.224	false
2019-11-14T18:30Z	1.225	false
2019-11-14T18:15Z	1.232	false
2019-11-14T18:00Z	1.237	false
2019-11-14T17:45Z	1.238	false
2019-11-14T17:30Z	1.24	false
2019-11-14T17:15Z	1.241	false
2019-11-14T17:00Z	1.243	false
2019-11-14T16:45Z	1.247	false
2019-11-14T16:30Z	1.247	false
2019-11-14T16:15Z	1.248	false
2019-11-14T16:00Z	1.249	false
2019-11-14T15:45Z	1.253	false
2019-11-14T15:30Z	1.252	false
2019-11-14T15:15Z	1.252	false
2019-11-14T15:00Z	1.252	false
2019-11-14T14:45Z	1.255	false
2019-11-14T14:30Z	1.256	false
2019-11-14T14:15Z	1.256	false
2019-11-14T14:00Z	1.257	false
2019-11-14T13:45Z	1.256	false
2019-11-14T13:30Z	1.261	false
2019-11-14T13:15Z	1.275	false
2019-11-14T13:00Z	1.277	false
2019-11-14T12:45Z	1.275	false
2019-11-14T12:30Z	1.273	false
2019-11-14T12:15Z	1.274	false
2019-11-14T12:00Z	1.273	false
2019-11-14T11:45Z	1.272	false
2019-11-14T11:30Z	1.274	false
2019-11-14T11:15Z	1.275	false
2019-11-14T11:00Z	1.271	false
2019-11-14T10:45Z	1.275	false
2019-11-14T10:30Z	1.276	false
2019-11-14T10:15Z	1.276	false
2019-11-14T10:00Z	1.275	false
2019-11-14T09:45Z	1.27	false
2019-11-14T09:30Z	1.272	false
2019-11-14T09:15Z	1.265	false
2019-11-14T09:00Z	1.256	false
2019-11-14T08:45Z	1.252	false
2019-11-14T08:30Z	1.251	false
2019-11-14T08:15Z	1.247	false
2019-11-14T08:00Z	1.241	false
2019-11-14T07:45Z	1.24	false
2019-11-14T07:30Z	1.231	false
2019-11-14T07:15Z	1.223	false
2019-11-14T07:00Z	1.219	false
2019-11-14T06:45Z	1.207	false
2019-11-14T06:30Z	1.197	false
2019-11-14T06:15Z	1.183	false
2019-11-14T06:00Z	1.173	false
2019-11-14T05:45Z	1.162	false
2019-11-14T05:30Z	1.153	false
2019-11-14T05:15Z	1.153	false
2019-11-14T05:00Z	1.147	false
2019-11-14T04:45Z	1.137	false
2019-11-14T04:30Z	1.129	false
2019-11-14T04:15Z	1.115	false
2019-11-14T04:00Z	1.101	false
2019-11-14T03:45Z	1.089	false
2019-11-14T03:30Z	1.081	false
2019-11-14T03:15Z	1.076	false
2019-11-14T03:00Z	1.074	false
2019-11-14T02:45Z	1.073	false
2019-11-14T02:30Z	1.067	false
2019-11-14T02:15Z	1.065	false
2019-11-14T02:00Z	1.062	false
2019-11-14T01:45Z	1.06	false
2019-11-14T01:30Z	1.058	false
2019-11-14T01:15Z	1.056	false
2019-11-14T01:00Z	1.056	false
2019-11-14T00:45Z	1.054	false
2019-11-14T00:30Z	1.053	false
2019-11-14T00:15Z	1.053	false
2019-11-14T00:00Z	1.052	false
2019-11-13T23:45Z	1.052	false
2019-11-13T23:30Z	1.051	false
2019-11-13T23:15Z	1.051	false
2019-11-13T23:00Z	1.051	false
2019-11-13T22:45Z	1.05	false
2019-11-13T22:30Z	1.048	false
2019-11-13T22:15Z	1.05	false
2019-11-13T22:00Z	1.051	false
2019-11-13T21:45Z	1.052	false
2019-11-13T21:30Z	1.051	false
2019-11-13T21:15Z	1.051	false
2019-11-13T21:00Z	1.052	false
2019-11-13T20:45Z	1.051	false
2019-11-13T20:30Z	1.051	false
2019-11-13T20:15Z	1.051	false
2019-11-13T20:00Z	1.051	false
2019-11-13T19:45Z	1.052	false
2019-11-13T19:30Z	1.051	false
2019-11-13T19:15Z	1.052	false
2019-11-13T19:00Z	1.051	false
2019-11-13T18:45Z	1.052	false
2019-11-13T18:30Z	1.053	false
2019-11-13T18:15Z	1.053	false
2019-11-13T18:00Z	1.052	false
2019-11-13T17:45Z	1.052	false
2019-11-13T17:30Z	1.052	false
2019-11-13T17:15Z	1.053	false
2019-11-13T17:00Z	1.052	false
2019-11-13T16:45Z	1.053	false
2019-11-13T16:30Z	1.052	false
2019-11-13T16:15Z	1.052	false
2019-11-13T16:00Z	1.052	false
2019-11-13T15:45Z	1.052	false
2019-11-13T15:30Z	1.054	false
2019-11-13T15:15Z	1.053	false
2019-11-13T15:00Z	1.054	false
2019-11-13T14:45Z	1.053	false
2019-11-13T14:30Z	1.048	false
2019-11-13T14:15Z	1.048	false
2019-11-13T14:00Z	1.047	false
2019-11-13T13:45Z	1.047	false
2019-11-13T13:30Z	1.046	false
2019-11-13T13:15Z	1.046	false
2019-11-13T13:00Z	1.045	false
2019-11-13T12:45Z	1.044	false
2019-11-13T12:30Z	1.043	false
2019-11-13T12:15Z	1.043	false
2019-11-13T12:00Z	1.043	false
2019-11-13T11:45Z	1.043	false
2019-11-13T11:30Z	1.043	false
2019-11-13T11:15Z	1.044	false
2019-11-13T11:00Z	1.045	false
2019-11-13T10:45Z	1.044	false
2019-11-13T10:30Z	1.043	false
2019-11-13T10:15Z	1.044	false
2019-11-13T10:00Z	1.044	false
2019-11-13T09:45Z	1.044	false
2019-11-13T09:30Z	1.044	false
2019-11-13T09:15Z	1.043	false
2019-11-13T09:00Z	1.044	false
2019-11-13T08:45Z	1.045	false
2019-11-13T08:30Z	1.045	false
2019-11-13T08:15Z	1.045	false
2019-11-13T08:00Z	1.046	false
2019-11-13T07:45Z	1.045	false
2019-11-13T07:30Z	1.046	false
2019-11-13T07:15Z	1.046	false
2019-11-13T07:00Z	1.046	false
2019-11-13T06:45Z	1.046	false
2019-11-13T06:30Z	1.047	false
2019-11-13T06:15Z	1.047	false
2019-11-13T06:00Z	1.046	false
2019-11-13T05:45Z	1.047	false
2019-11-13T05:30Z	1.047	false
2019-11-13T05:15Z	1.048	false
2019-11-13T05:00Z	1.048	false
2019-11-13T04:45Z	1.048	false
2019-11-13T04:30Z	1.048	false
2019-11-13T04:15Z	1.048	false
2019-11-13T04:00Z	1.048	false
2019-11-13T03:45Z	1.048	false
2019-11-13T03:30Z	1.048	false
2019-11-13T03:15Z	1.048	false
2019-11-13T03:00Z	1.049	false
2019-11-13T02:45Z	1.049	false
2019-11-13T02:30Z	1.049	false
2019-11-13T02:15Z	1.049	false
2019-11-13T02:00Z	1.049	false
2019-11-13T01:45Z	1.049	false
2019-11-13T01:30Z	1.049	false
2019-11-13T01:15Z	1.049	false
2019-11-13T01:00Z	1.049	false
2019-11-13T00:45Z	1.048	false
2019-11-13T00:30Z	1.048	false
2019-11-13T00:15Z	1.048	false
2019-11-13T00:00Z	1.049	false
2019-11-12T23:45Z	1.048	false
2019-11-12T23:30Z	1.049	false
2019-11-12T23:15Z	1.048	false
2019-11-12T23:00Z	1.048	false
2019-11-12T22:45Z	1.048	false
2019-11-12T22:30Z	1.049	false
2019-11-12T22:15Z	1.049	false
2019-11-12T22:00Z	1.049	false
2019-11-12T21:45Z	1.05	false
2019-11-12T21:30Z	1.05	false
2019-11-12T21:15Z	1.05	false
2019-11-12T21:00Z	1.05	false

Forecast data

Key information

• Station name: Chalgrove (upstream)
• Station ID: 7404
• River name: Chalgrove Brook
• Typical range: 0.90m to 1.75m
• Highest level on record: 1.93m on 07 February 2014
• Site datum: 66.00mAOD (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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