Flood Alert Info - Groundwater flooding in Vernham Dean, Upton and the Bourne Valley
Area Description
Communities at risk of groundwater flooding in Vernham Dean, Upton and the Bourne Valley in North Hampshire including Hurstbourne Tarrant and St Mary Bourne.
This is a Flood Alert Area. For this area the highest level of flood notification that you will receive is a Flood Alert. No Flood Warnings or Severe Flood Warnings are issued for this area.
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There are no Flood Alerts currently in force for this area. See below for historical flood warnings.
Area Covered by this Flood Alert
The orange highlighted area on the map below outlines the area covered by this Flood Alert.
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Flood Alert History
Number of historic Flood Alerts that have previously been recorded for this area:
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Historical Flood Alerts for this Area
Flood Alert issued on 15 May 2024 15:29
Groundwater
Groundwater levels in the Bourne Valley are high but continue slowly falling. During the last week, 15mm of rain has been recorded at Andover. In the last week, levels have fallen by 1.72m at Vernham Dean and 7cm at Upton. Residual water may still be affecting the main road in Upton. Tankering of sewerage is expected to continue over the next couple of weeks. From today 15/05/2024 to Sunday 19/05/2024, spells of rain and showers, some of which may be heavy, are expected to affect Hampshire with between 5 and 45mm of rain expected. Groundwater levels are expected to continue falling and the situation will improve over the coming weeks, but any heavy rain that affects the area will prolong flooding impacts. We continue to monitor the levels and forecast. If you have pumps to help reduce water levels, please ensure that they are operational. This Flood Alert will be updated by 18:00 on Wednesday 22/05/2024.
Flood Alert issued on 8 May 2024 14:01
Groundwater
Groundwater levels in the Bourne Valley are high but slowly falling. During the last week, 22mm of rainfall was recorded at Andover, and groundwater levels fell by 1.9m at Vernham Dean, and 6cm in Upton. Residual flood water may still be affecting cellars in Upton and Hurstbourne Tarrant. Tankering of sewerage is expected to continue over the next few weeks. From today (08/05/2024) to Sunday (12/05/2024), high pressure with more settled, drier weather is expected across Hampshire. We expect groundwater levels to continue slowly falling. If you have pumps to help reduce water levels, please ensure that they are operating. We continue to monitor the levels and forecast. This Flood Alert will be updated by 18:00 on Wednesday 15/05/2024.
Flood Alert issued on 1 May 2024 11:31
Groundwater
Groundwater levels in the Bourne Valley are high but slowly falling. During the last week, half a month’s rain (30mm) was recorded at Andover. We expect a small number of properties in Upton and Hurstbourne Tarrant will be experiencing cellar flooding. In Upton, water continues to affect the main road. Impacts to the sewerage network and septic tanks are ongoing throughout the valley. From today (01/05/2024) to Friday (03/05/2024), heavy rain is forecast in Hampshire with between 25 and 50mm of rain possible in these three days. Groundwater levels are expected to initially continue falling, but could begin to stabilise or even rise next week if heavy rain affects the Bourne Valley. We continue to monitor the levels and forecast. If you have pumps to help reduce water levels, please ensure that they are operating. This Flood Alert will be updated by 18:00 on Wednesday (08/05/2024).
Flood Alert issued on 24 Apr 2024 11:15
Groundwater
Groundwater levels in the Bourne Valley are high, but slowly falling. We expect a small number of properties in Upton and Hurstbourne Tarrant will be experiencing cellar flooding. In Upton, water continues to affect the main road. Impacts to the sewerage network and septic tanks are ongoing throughout the valley. From today (24/04/2024) to Friday (26/04/2024), light rain is forecast in Hampshire. On Saturday (27/04/2024), there is potentially heavy frontal rain forecast, bringing between 10 and 45mm. Further rain (up to 15mm) is expected on Sunday (28/04/2024). Groundwater levels are expected to continue slowly falling initially. However, if heavy rainfall affects the Bourne Valley, then within the next week, levels may begin to stabilise and could even begin to rise again. We continue to monitor the levels and forecast. If you have pumps to help reduce water levels, please ensure that they are operating. This Flood Alert will be updated by 18:00 on Wednesday 01/05/2024.
Flood Alert issued on 17 Apr 2024 09:04
Groundwater
Groundwater levels in the Bourne Valley are high and rising slowly. We expect a small number of properties in Hurstbourne Tarrant and Upton will be experiencing cellar flooding. In Upton, water continues to affect the main road. Impacts to the sewerage network and septic tanks are ongoing throughout the valley. From today 17/04/2024 until Sunday 21/04/2024, minimal rain is forecast. The rate at which groundwater levels are rising continues to slow, and it is likely that levels will peak within the next couple of days. We continue to monitor the levels and forecast, and have deployed the flood barrier at St Mary Bourne to manage flood risk. If you have pumps to help reduce water levels, please ensure that they are operating. This Flood Alert will be updated by 18:00 on Wednesday 24/04/2024.
Flood Alert issued on 10 Apr 2024 11:30
Groundwater
Groundwater levels are high and rising slowly. In the last week, just 15mm of rain has been recorded at Andover. We expect a small number of properties in Hurstbourne Tarrant and Upton will be experiencing cellar flooding. In Upton, a small amount of water continues to affect the main road. Impacts to the sewerage network and septic tanks are ongoing throughout the valley. From today 10/04/2024 until Sunday 14/04/2024, minimal rainfall is forecast. The rate at which groundwater levels are rising has started to slow, and it is likely that they will peak within the next week. No new flooding impacts are expected during this time. We continue to monitor the levels and forecast, and have deployed flood barriers at St Mary Bourne to manage flood risk. If you have pumps to help reduce water levels, please ensure that they are operating. This Flood Alert will be updated by 18:00 on Wednesday 17/04/2024.
Flood Alert issued on 3 Apr 2024 10:45
Groundwater
Groundwater levels in the Bourne Valley are high and rising slowly following a week of wet weather in which 61mm of rain was recorded at Andover. We expect a small number of properties in Hurstbourne Tarrant and Upton will be experiencing cellar flooding. In Upton, a small amount of water continues to affect the road. Impacts to the sewerage network and septic tanks are ongoing throughout the valley. Unsettled weather is forecast to affect Hampshire over the next 3 days, with between 20 and 40mm of rain possible. Saturday 06/04/2024 and Sunday 07/04/2024 are expected to be mostly dry. Groundwater levels are expected to continue to rise slowly throughout the next week. An increased number of cellars throughout the Bourne Valley could be affected if heavy rain affects the area over the next couple of weeks. We continue to monitor the levels and forecast. If you have pumps to help reduce water levels, please ensure that they are operating. This Flood Alert will be updated by 18:00 on Wednesday 10/04/2024.
Flood Alert issued on 27 Mar 2024 15:19
Groundwater
Groundwater levels in the Bourne Valley are high but continue to slowly fall. We expect a small number of properties in Upton, Hurstbourne Tarrant, Stoke and St Mary Bourne will still be experiencing cellar flooding impacts. There is water on the main road in Upton and impacts to the sewerage network and septic tanks are ongoing throughout the valley. From today 27/03/2024 to Saturday 30/03/2024, rain is forecast on each day in Hampshire. This is expected to bring between 25 and 35mm across these 4 days. The rate at which groundwater levels are falling will likely slow down, and levels could possibly begin to stabilise if the heaviest rain affects the Bourne Valley. Unsettled conditions are also expected in the south of England next week, which could cause groundwater levels to slowly rise once more. We continue to monitor the levels and forecast. If you have pumps to help reduce water levels, please ensure that they can operate. This Flood Alert will be updated by 18:00 on Wednesday 03/04/2024.
Flood Alert issued on 20 Mar 2024 14:18
Groundwater
In the Bourne Valley, groundwater levels are high but falling slowly. We expect properties in Upton, Stoke, Vernham Dean and Hurstbourne Tarrant will be experiencing cellar flooding. Impacts to the sewerage network and septic tanks are ongoing throughout the valley. Water is currently affecting the main road through Upton. From today 20/03/2024 to Sunday 24/03/2024, only light showers are forecast. Groundwater levels in the Bourne Valley are expected to continue falling throughout this week. Flooding impacts will improve during this time. However, due to the current level, and the rate at which levels are falling, groundwater flooding impacts are expected to continue to affect the valley well into April. We continue to monitor the levels and forecast. If you have pumps to help reduce water levels, please ensure that they are operating. This Flood Alert will be updated by 18:00 on Wednesday 27/03/2024.
Flood Alert issued on 13 Mar 2024 13:57
Groundwater
Groundwater levels in the Bourne Valley are high and rising slowly. We expect properties in Upton, Stoke, Vernham Dean and Hurstbourne Tarrant will be experiencing cellar flooding. Impacts to the sewerage network and septic tanks are ongoing throughout the valley. Water is currently affecting the main road through Upton. From Thursday (14/03/2024) to Sunday (17/03/2024), only small amounts of rain are forecast in Hampshire, with between 15 and 25mm expected across these 4 days. The rate at which groundwater levels are rising has slowed during the last week. They may respond to the rain forecast over the next few days, but overall, levels are expected to stabilise over the next week. We continue to monitor the levels and forecast. If you have pumps to help reduce water levels, please ensure that they are operating. This Flood Alert will be updated by 18:00 on Wednesday 20/03/2024.
Flood Alert issued on 6 Mar 2024 11:29
Groundwater
Groundwater levels in the Bourne Valley are high and continue to rise. In the last week, persistent rain (36mm) has been recorded at Andover. We expect properties in Upton and Hurstbourne Tarrant will be experiencing cellar flooding. Impacts to the sewerage network and septic tanks are ongoing throughout the valley. Water will be affecting the main road through Upton. From today (Wednesday 06/03/2024) to Friday 08/03/2024, relatively dry weather is forecast. On Saturday (09/03/2024), further rain (up to 20mm) is forecast in Hampshire. Groundwater levels in the valley will continue to rise through next week. In the next 7 days, more significant impacts in Stoke, Vernham Dean and St Mary Bourne are expected. Impacts to cellars and the sewerage network will increase. We have deployed the flood barrier in St Mary Bourne to help reduce flood risk, and continue to monitor the forecast. If you have pumps to help reduce water levels, please ensure that they are operating. This Flood Alert will be updated by 18:00 on Wednesday 13/03/2024.
Flood Alert issued on 28 Feb 2024 12:48
Groundwater
Groundwater levels in the Bourne Valley are high and continue to rise. In the last week, persistent rainfall (32mm) has been recorded at Andover. We expect that properties in Upton and in Hurstbourne Tarrant will be experiencing cellar flooding. Impacts to the sewerage network and septic tanks are ongoing throughout the valley. Water is likely to be affecting the main road through Upton. Unsettled weather is forecast during the next 4 days, with up to 45mm of rain possible in Hampshire during that time. Groundwater levels in the valley are expected to continue rising for at least another couple of weeks. From later next week, increased cellar flooding and sewerage impacts throughout the valley, including St Mary Bourne, Stoke and Vernham Dean, are possible. Flows on the main road through Upton will increase. We continue to monitor the levels and forecast, and have deployed the flood barrier at St Mary Bourne to help manage flood risk. If you have pumps to help reduce water levels, please ensure that they can operate. This Flood Alert will be updated by 18:00 on Wednesday 06/03/2024.
Flood Alert issued on 21 Feb 2024 14:38
Groundwater
Groundwater levels in the Bourne Valley are high and have just started to rise again. In the last 2 weeks, 150% of the long term average monthly rainfall (76mm) has been recorded at Andover. Impacts to the sewerage network and septic tanks throughout the valley are expected to be ongoing. Unsettled weather is expected to affect Hampshire today 21/02/2024 and tomorrow 22/02/2024 with up to 40mm of rain possible in these two days. Another 15mm of rain is possible in Hampshire on Sunday 25/02/2024. This heavy rain will cause groundwater levels to continue to rise and cellar flooding impacts could increase in Upton and Hurstbourne Tarrant during next week, and road flooding impacts in Upton could get deeper. We have deployed the flood barrier in St Mary Bourne to help manage flood risk and continue to monitor the levels and forecast. If you have pumps to help reduce water levels, please ensure that they are operating. This Flood Alert will be updated by 18:00 on Wednesday 28/02/2024.
Flood Alert issued on 14 Feb 2024 17:26
Groundwater
Groundwater levels in the Bourne Valley peaked around mid-January and despite the recent rainfall, are still falling. However, groundwater levels remain high and sewerage network and septic tank impacts are expected to be ongoing throughout the valley. Some properties in Upton and Hurstbourne Tarrant may have some residual groundwater in their cellars. Unsettled weather is forecast in Hampshire from today (14/02/2024) through to Saturday (17/02/2024), with up to 35mm of rain possible in these 4 days. If heavy or persistent rain affects the area during the next week, groundwater levels may begin to rise again. Increased cellar flooding impacts in Upton and Hurstbourne Tarrant could occur within the next 2 weeks and flows on the main road in Upton could rise. We have deployed flood barriers in St Mary Bourne to help manage flood risk and we continue to monitor the forecast. If you have pumps to help reduce water levels, please ensure that they are operating. This Flood Alert will be updated by 18:00 on Wednesday 21/02/2024.
Flood Alert issued on 7 Feb 2024 12:51
Groundwater
Groundwater levels in the Bourne Valley are high but falling. We expect that properties in Upton and Hurstbourne Tarrant are experiencing ongoing cellar flooding. Sewerage network and septic tank impacts are expected to be ongoing throughout the valley. Unsettled weather is expected to affect Hampshire throughout the next 4 days, with the possibility of very heavy rain (up to 40mm) on Thursday 08/02/2024. If heavy rain affects the Bourne Valley, groundwater levels will rise again, flows on the road in Upton will increase, and more properties in the valley will be affected by cellar flooding. It is possible that some properties could experience internal ground floor flooding. We have deployed flood barriers in St Mary Bourne to help manage flood risk and continue to monitor the forecast. If you have pumps to help reduce water levels, please ensure that they are operating. This Flood Alert will be updated by 18:00 on Wednesday 14/02/2024.
Flood Alert issued on 1 Feb 2024 14:03
Groundwater
Groundwater levels in the Bourne Valley are high but falling. We expect that properties in Upton and Hurstbourne Tarrant are experiencing ongoing cellar flooding. Sewerage network impacts are expected to be ongoing in all villages. Residual flood water may still be affecting the road through Upton. Dry weather is forecast from today (01/02/2024) to Monday (05/02/2024). Groundwater levels throughout the valley are expected to continue falling, and flooding impacts will slowly improve. We continue to monitor the forecast and have deployed flood barriers at St Mary Bourne to help manage flood risk. Please ensure that any pumps used to reduce water levels are operating. This Flood Alert will be updated by 18:00 on Thursday 08/02/2024.
Flood Alert issued on 25 Jan 2024 13:05
Groundwater
In the Bourne Valley, groundwater levels remain very high but are slowly falling. We expect cellar flooding at Upton, Hurstbourne Tarrant, Stoke, Vernham Dean and St Mary Bourne. Isolated properties may be experiencing ground floor flooding. The road through Upton is flooded. Groundwater is affecting the sewerage system in all villages. Over the next five days, only very small amounts of rainfall are forecast. Groundwater levels are expected to continue falling, and flooding impacts will slowly improve. We continue to monitor the levels and forecast and have deployed flood barriers at St Mary Bourne to help manage flood risk. Please ensure any pumps used to reduce water levels are operating. This Flood Alert will be updated by 18:00 on Thursday 01/02/2024.
Flood Alert issued on 18 Jan 2024 16:56
Groundwater
In the Bourne Valley, groundwater levels remain very high but have now stabilised. We expect ongoing cellar flooding at Upton, Hurstbourne Tarrant, Stoke, Vernham Dean and St Mary Bourne. Isolated properties in the valley may be experiencing internal flooding. The road through Upton will be impassable. Water on roads may freeze and cause icy driving conditions. Groundwater is affecting the sewerage system in all villages. Today (18/01/24) and Friday (19/01/24) are forecast to be dry. From Saturday 20/01/24 to Monday 22/01/24, unsettled weather is expected to return with up to 15mm of rain expected during these three days. Groundwater levels could begin to fall over the next few days, but they will remain sensitive to further heavy rainfall recorded this winter. If very heavy rain is recorded in the coming weeks, groundwater levels could be similar to those recorded in 2014. We have deployed temporary barriers at St Mary Bourne to help manage flood risk. Please ensure any pumps used to reduce water levels are operating. This Flood Alert will be updated by 18:00 on Thursday 25/01/2024.
Flood Alert issued on 11 Jan 2024 16:33
Groundwater
Groundwater levels in the Bourne Valley are high and continue to rise. We expect cellar flooding to be occurring at Upton, Hurstbourne Tarrant, Stoke, Vernham Dean and St Mary Bourne. Isolated properties in the valley may be experiencing internal flooding. The road through Upton will be impassable. Groundwater is affecting the sewerage system throughout all villages. The next 5 days are forecast to be dry. Groundwater levels in the Bourne Valley are expected to continue rising into next week, although the rate of rise is slowing following 6 days of dry weather. With levels being so high, if we get further heavy rainfall recorded during the remainder of the winter, groundwater impacts could be similar to those experienced during 2014. We have deployed temporary barriers at St Mary Bourne to help manage flood risk. Please remove any valuables from cellars and if you have pumps to help reduce water levels, please ensure that they can operate. This Flood Alert will be updated by 18:00 on Thursday 18/01/2024.
Flood Alert issued on 8 Jan 2024 11:58
Groundwater
In the Bourne Valley, groundwater levels are high and rising rapidly. In the last 7 days, 56mm of rain has been recorded at Andover. We expect cellar flooding in Upton to be ongoing. In the next couple of days, properties in Hurstbourne Tarrant, Stoke, Vernham Dean and St Marybourne will be affected by cellar flooding, and a few properties may experience internal flooding. The road through Upton will become impassable, and groundwater is expected to be impacting the sewerage system throughout all villages. The next 5 days are forecast to be dry. Groundwater levels in the Bourne Valley are expected to rise until at least the end of next week. With levels being so high, if we get further heavy rainfall recorded during the remainder of the winter, groundwater impacts could be similar to those experienced during 2014. We have deployed temporary barrier at St Marybourne to help manage flood risk. Please remove any valuables from cellars and if you have pumps to help reduce water levels, please ensure that they can operate. This Flood Alert will be updated by 18:00 on Thursday 11/01/2024.
Flood Alert issued on 3 Jan 2024 15:34
Groundwater
In the Bourne Valley, groundwater levels are high and rising. In the last 7 days, nearly a month’s rain (65mm) has been recorded at Andover. In Vernham Dean, the current groundwater rate of rise is 17cm per day. Groundwater is affecting the sewerage network in Stoke. Groundwater levels remain high in Upton and could soon start impacting cellars and the sewerage network. We do not expect significant impacts to property at Vernham Dean, Hurstbourne Tarrant, Stoke or St Marybourne for the next couple of weeks. The weather forecast for the next five days is for relatively small amounts of rain. However, there is a possibility that heavy rain (45mm) could be recorded in Hampshire on Thursday (04/01/2024). Groundwater is expected to rise until mid-January 2024, and could rise quickly if heavy rain affects the valley. We continue to monitor the forecast. In Upton, if you have pumps to help reduce water levels, please ensure that they can operate. We advise all residents remain prepared for flooding impacts this winter. This Flood Alert will be updated by 17:00 on Wednesday 10/01/2024.
Flood Alert issued on 27 Dec 2023 10:24
Groundwater
In the Bourne Valley, groundwater levels are high and rising slowly. At Vernham Dean, the current rate of rise is 3cm per day. Currently, groundwater is inundating the sewerage network in Stoke. From today (27/12/2023) until Sunday (31/12/2023), the weather is forecast to be unsettled with up to 35mm of rain forecast across this period. We expect groundwater levels to peak in the next couple of days below the level we would expect to see cellar flooding and inundation of the sewerage system in Upton. We do not expect significant impacts to property at Vernham Dean, Hurstbourne Tarrant, Stoke or St Marybourne for at least the next couple of weeks. When heavy or prolonged rain affects the Bourne Valley, groundwater levels will begin to rise again. We continue to monitor the forecast. In Upton, if you have pumps to help reduce water levels, please ensure that they can operate. We advise all residents in the Bourne Valley to remain prepared for flooding impacts this winter. This Flood Alert will be updated by 17:00 on Wednesday 03/01/2024.
Flood Alert issued on 22 Dec 2023 11:45
Groundwater
In the Bourne Valley, groundwater levels are high and rising. At Vernham Dean, the current rate of rise is 22cm per day. Currently, groundwater is inundating the sewerage network in Stoke. In the next 5 days, groundwater may affect a small number of cellars and the sewerage system in Upton. However, the rate of rise is slowing and levels may peak before this occurs. We do not expect significant impacts to property at Vernham Dean, Hurstbourne Tarrant, Stoke or St Marybourne until later this winter. From today until Sunday (24/12/2023), dry weather is forecast. From Monday to Tuesday (26/12/2023), up to 20mm of rainfall is forecast. If heavy rain affects the Bourne Valley, groundwater levels will continue to rise. If not, we expect the level to peak between Christmas and New Year. We continue to monitor the forecast. In Upton, please remove any valuables from cellars and if you have pumps to help reduce water levels, please ensure they can operate. We advise all residents in the Bourne Valley to remain prepared. This Flood Alert will be updated by 17:00 on Wednesday 27/12/2023.
Flood Alert issued on 19 Dec 2023 16:22
Groundwater
In the Bourne Valley, groundwater levels are high and rising. In the last 2 months, prolonged, much higher than average rainfall (298mm) has been recorded in Andover. At Vernham Dean, the current rate of rise is 34cm per day. In the next 5 days, groundwater flooding will affect a small number of cellars in Upton. Septic tanks will also struggle to operate properly. We do not expect significant impacts to property at Vernham Dean, Hurstbourne Tarrant, Stoke or St Marybourne until later this winter. Today (Tuesday 19/12/2023), up to 13mm of rain is forecast in Hampshire. Dry weather is expected from Wednesday (20/12/2023) to Saturday (23/12/2023). Groundwater is expected to continue rising. We will continue to monitor the forecast. In Upton, please remove any valuables from cellars and if you have pumps to help reduce water levels, please ensure they can operate. We advise all residents in the Bourne Valley to remain prepared for potential impacts over the next few weeks. This Flood Alert will be updated by 17:00 on Friday 22/12/2023.
Flood Alert issued on 8 Apr 2020 12:21
Groundwater
At Vernham Dean and in Upton, the groundwater level continues to fall. In the last 5 days, the level has reduced by 1.3m at Vernham Dean. Over the next 5 days, the weather is mostly dry, but it will be interspersed with periods of showery rain, especially through Easter weekend. Given the current forecast totals, the rainfall should not cause groundwater levels to rise. By the end of this week (and if it hasn’t already) groundwater should stop causing impacts to property in Upton. It will probably be another 3 to 4 weeks before the sewerage network can function more normally. Next week, as long as the weather forecast remains favourable, then we will remove this Alert. This Flood Alert will be updated or removed by 15:00 on Wednesday 15/04/2020.
Flood Alert issued on 30 Mar 2020 10:43
Groundwater
At Vernham Dean and in Upton, the groundwater level continues to fall. At Vernham Dean, the current rate of fall is now 0.2 m per day. The daily rate of fall will increase this week. Over the next 5 days, the weather will remain fairly dry. Given the current rate of fall and the continued dry outlook, in 7 to 10 days, groundwater should stop affecting cellars in Upton. In St Marybourne, it will be more than another month before the sewerage network will be able to operate effectively. We continue to monitor the forecast. Please ensure that any pumps required to protect property can operate. This Flood Alert will be updated by 15:00 on Wednesday 08/04/2020.
Flood Alert issued on 23 Mar 2020 11:05
Groundwater
At Vernham Dean and Upton, the groundwater is high, but levels are finally beginning to fall. At Vernham Dean, the current rate of fall is around 8cm per day, at Upton it is much less, falling by 1 cm every few days. This week, cellar flooding will continue In Upton, and the sewerage network in St Marybourne will struggle to operate effectively. Over the next 5 days, the weather should remain fairly dry, and levels will continue to fall. Flood impacts will begin to improve, although any improvement, may not be noticeable until next week. We continue to monitor the forecast. Please ensure that any pumps required to protect property can operate. This Flood Alert will be updated by 15:00 on Monday 30/03/2020.
Flood Alert issued on 12 Mar 2020 11:10
Groundwater
At Vernham Dean and Upton, the groundwater is high and continues to slowly rise. The rate of rise has now slowed, and is less than 10cm per day. Groundwater has almost finished responding to the heavy rainfall recorded in the last few weeks. In Upton, there is some flow in the road and cellar flooding. The sewerage network at St Marybourne is also struggling to operate. Over the next 5 to 10 days, the weather should be much drier, except for this weekend (14/03/2020 and 15/03/2020) when 10 to 15mm of rain is forecast. Rainfall this weekend will cause levels to rise a little, but, with drier weather next week, for the time being, groundwater will peak before it impacts a larger number of properties. Next week, it’s possible that levels may begin to fall. We would like all villages to remain prepared for groundwater flood impacts this spring. A wet end to March would still see levels increase rapidly. This Flood Alert will be updated by 15:00 on Tuesday 24/03/2020.
Flood Alert issued on 6 Mar 2020 12:34
Groundwater
At Vernham Dean and Upton, the groundwater is high and levels are rising. Heavy rainfall over the last 48 hours means that Vernham Dean is rising by 0.2m per day, and will no longer peak at the weekend. There will be cellar flooding and flow in the road at Upton. The sewerage network at St Marybourne will also struggle to operate effectively. Today and tomorrow (Saturday 07/03/2020) the weather will remain dry. On Sunday (08/03/2020) and Monday (09/03/2020) further rain (15mm to 30mm) is now forecast. Throughout this time, if 30mm of rain should affect the Bourne Valley, then an increase in impacts at Hurstbourne Tarrant, Stoke and St Marybourne could become more likely. If you use pumps to help reduce water levels, please ensure they can operate. This Flood Alert will be updated by 15:00 on Thursday 12/03/2020.
Flood Alert issued on 4 Mar 2020 16:47
Groundwater
At Vernham Dean and Upton, the groundwater is high and levels are rising. At Vernham Dean, the rate of rise is now slowing, at 0.1m per day. Currently, levels are high enough to cause cellar flooding at Upton. Over the next 5 days, only very small amounts of rain are forecast. This will not cause a steep rise in level or alter impacts significantly. At Vernham Dean, levels should begin to stabilise at the weekend (around the 7th to 8th March 2020). As the level peaks, it will be very close to causing a limited amount of flow into the road at Upton. The sewerage network at St Marybourne may also struggle to operate effectively. Next week, the weather outlook may continue to be unsettled, but it could be slightly drier in the South. If you use pumps to help reduce water levels, please ensure they can operate. This Flood Alert will be updated by 15:00 on Wednesday 11/03/2020.
Flood Alert issued on 25 Feb 2020 11:48
Groundwater
At Vernham Dean and Upton, the groundwater is high and levels are rising. At Vernham Dean, groundwater is rising by 0.3m per day, but the rate of rise is now slowing. Currently, levels are high enough to cause cellar flooding at Upton. Septic tanks will also struggle to operate properly as they become overwhelmed with groundwater. Today and tomorrow (26/02/2020) showers are expected. From Thursday (27/02/2020) to Saturday (29/02/2020) rain is forecast with 20mm to 40mm possible. An unsettled outlook may also continue next week. Even without additional rainfall this week, levels would rise until the beginning of March 2020. Further rain at the weekend, will cause levels to rise for longer. We will update our assessment on when groundwater is likely to peak next week, once we understand how much rain has fallen this weekend. If you use pumps to help reduce water levels, please ensure they can operate. This Flood Alert will be updated by 15:00 on Thursday 05/03/2020.
Flood Alert issued on 19 Feb 2020 12:36
Groundwater
At Vernham Dean and Upton, the groundwater is high and levels are rising. Last week from Thursday (13/02/2020) to Monday (17/02/2020), 66mm of rain was recorded at Andover. This is more than February’s monthly average rainfall. Groundwater is currently rising by 0.2m per day. In the next 5 to 6 days, levels will be high enough to cause cellar flooding at Upton. Septic tanks will also struggle to operate properly as they become overwhelmed with groundwater. Over the next 5 days, relatively small amounts of rain are forecast (15-20mm). Groundwater levels will rise for at least the next 12 days. We continue to monitor the forecast. If you use pumps to help reduce water levels, please ensure they can operate. Please remain prepared for groundwater flood impacts over the next few weeks. This Flood Alert will be updated by 12:00 on Tuesday 25/02/2020.
Flood Alert issued on 14 Feb 2020 11:38
Groundwater
At Vernham Dean and Upton, the groundwater is high, but levels continue to fall. It is not currently flooding property. From later on this evening (Friday 14/02/2020) until Monday (17/02/2020) very heavy rain is forecast in Hampshire. Over the weekend we could see between 30mm and 60mm of rainfall. With 30mm of rain, levels may rise a little over the next week but would not affect property. With 60mm (a month’s rain in 48 hours), levels would rise over the next 12 days, peaking higher than they did at the end of January and possibly causing cellar flood impacts at Upton. On Saturday and Sunday, very heavy rain will cause flooding on the B3048, as drainage capacity will be much lower than normal, this could affect property. We continue to monitor the forecast. Please remain prepared for groundwater flood impacts over the next few weeks. This Flood Alert will be updated by Friday 21/02/2020.
Flood Alert issued on 7 Feb 2020 11:53
Groundwater
At Vernham Dean, groundwater is high, but the level has fallen by 0.7 metres in the last 8 days. It is not currently flooding property. Until Saturday evening, the weather is dry and the level will continue to fall. Storm Ciara then affects the UK. From Saturday (08/02/2020) to Monday (10/02/2020) 15mm to 30mm of rain is expected. Whilst Tuesday is currently forecast to be dry, it may remain unsettled later in the week. Should the larger rainfall totals affect the Bourne Valley, groundwater will begin rising on Monday (10/02/2020). In the next week, it is unlikely that levels will increase by more than 1 metre and so shouldn’t affect cellars in Upton. Much then depends on any additional rainfall in the next 14 days. On Sunday, the rain may cause minor impact road flooding along the B3048. We continue to monitor the forecast. Please remain prepared for groundwater flood impacts over the next few weeks. This Flood Alert will be updated by Friday 14/02/2020.
Flood Alert issued on 31 Jan 2020 11:26
Groundwater
Groundwater levels are high, following heavy rainfall in January 2020. At Vernham Dean, the level peaked Thursday (30/01/2020). It is currently 0.4m below where the onset of cellar flooding impacts can occur in Upton. The level has peaked a little lower than we thought it would, when we first issued the alert a few weeks ago. Today (Friday 31/01/2020) through to Sunday (02/02/2020) small amounts of rain are forecast, although on Sunday, it could be heavy at times. From Monday onwards, the weather should be fairly dry. The rainfall could cause a very small increase in groundwater level early next week, but levels should increase by no more than 10 to 20cm. It is unlikely that impacts will occur in Upton next week. With some dry weather from Monday (03/02/2020) levels may begin to fall. We continue to monitor the forecast. We would still like villages to remain prepared for groundwater flood impacts over the next few weeks. This Flood Alert will be updated by Friday 07/02/2020.
Flood Alert issued on 24 Jan 2020 10:27
Groundwater
Groundwater levels are high and rising. At Vernham Dean, the current rate of rise remains at 0.3m per day. From Sunday (26/01/2020) onwards, further rain is forecast. On Monday (27/01/2020) in particular, the rainfall could be heavy. If heavier rain affects the area, groundwater levels will continue to rise next week. It is then much more likely to impact a small number of cellars in Upton and affect septic tanks. We still do not expect significant impacts to property at Vernham Dean, Hurstbourne Tarrant, Stoke or St Marybourne. River levels will continue to rise over the next week, flooding low lying land, especially at Ibthorpe and Stoke. Our 6 to 10 day weather outlook suggests that conditions could remain unsettled. In Upton, please consider removing any valuables from cellars. All residents should remain prepared for potential flood impacts over the next few weeks. We continue to monitor the forecast. This Flood Alert will be updated by 12:00 on Friday 31/01/2020.
Flood Alert issued on 22 Jan 2020 11:05
Groundwater
In the Bourne Valley, groundwater levels are high and rising following 6 months of above average rainfall. At Vernham Dean, the current rate of rise is 0.3m per day. The level could rise for another 8 to 10 days. At this time, it could be very close to impacting a very small number of cellars in Upton. It may also begin to affect septic tanks. Currently, we do not expect significant impacts to property at Vernham Dean, Hurstbourne Tarrant, Stoke or St Marybourne. The River Swift will be flowing rapidly, and may cause flooding to low lying land especially at Ibthorpe and Stoke. The weather remains dry until Saturday (25/01/2020). On Sunday, a small amount of rain is forecast and it may turn unsettled next week. In Upton, please consider removing valuables from cellars. We’d like all residents in the Bourne Valley to remain prepared for potential impacts this winter. We continue to monitor the forecast. This Flood Alert will be updated by 12:00 on Monday 27/01/2020.