Flood Warnings in Hampshire

Groundwater

High groundwater levels are expected to cause flooding. Groundwater levels in Salisbury Plain are high. Areas that could be affected include: Winterbourne Gunner, Winterbourne Dauntsey, Winterbourne Earls and Laverstock . The groundwater level at the Clarendon borehole is at 71.47m, and remains reactive to further rainfall. High groundwater levels will influence the level of the River Bourne as well, increasing the risk of fluvial flooding. Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed. Residents may experience inundation of septic tanks and sewer systems. Properties may experience flooding in cellars in affected areas. We are closely monitoring the situation . If you have a pump, make sure it is working and switched on. Think about alternative power sources in case of power cuts . This message will be updated by 4:00PM on 20 March 2026 or as the situation changes.

Avon

This is a flood alert update. River levels remain steady but still higher than normal in the Lower Avon and responsive to further rainfall. Flooding is still possible. Areas most at risk include the tributaries between Ringwood and Christchurch. Flooding is possible with low lying land and roads near rivers particularly around Ringwood Old Cottage most affected. No rain is forecast in the next few days. We will continue to monitor the situation. Please avoid using low lying footpaths and any bridges near local watercourses, and do not attempt to walk, cycle or drive through flood water. Never drive through flood water, just 30cm of fast flowing water is enough to move your car. Check local authority websites for road closures. This message will be updated by 11:00 AM on Tuesday 17th March 2026 or as the situation changes.

Groundwater

Groundwater levels in the Bourne Valley remain high. At the borehole in Vernham Dean, the level has fallen by 1.08m. At Upton, the level remains relatively steady. Flooding is expected to be affecting a small number of cellars in Upton. Septic tanks will also struggle to operate properly. Currently, we do not expect significant impacts to property at Vernham Dean, Hurstbourne Tarrant, Stoke or St Mary Bourne. Mostly dry weather is forecast on Tuesday 10/03/2026, Wednesday 11/03/2026 and Saturday 14/03/2026. On Thursday 12/03/2026 and Friday 13/03/2026, further rain (between 20 and 25mm) is expected. This rainfall is likely to prolong ongoing groundwater flooding impacts. We are closely monitoring the situation. Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed, especially if you are in Upton. This message will be updated by 18:00 17/03/2026.

Groundwater

Groundwater levels are still high across the villages covered by this flood alert area. Flooding is affecting cellars in Nether Wallop and Pitton. Sewerage system impacts are expected to be ongoing in Pitton. Garden flooding is ongoing in Over Wallop. In West Tytherley, groundwater is relatively stable around the level we expect cellar, road and land flooding to occur. Only a small amount of rain (between 10 and 20mm) is forecast to affect Hampshire between Monday 09/03/2026 and Friday 13/03/2026. Over the weekend and into next week, further unsettled weather is possible. Groundwater levels in all villages are expected to slowly fall this week. If heavy rain affects the area, groundwater levels could rise again in the second half of March. We are closely monitoring the situation. Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed. This message will be updated by 18:00 16/03/2026.

Groundwater

Groundwater levels in Twyford and Hensting are high but slowly falling. Flooding is affecting cellars of a small number of properties in Twyford and Hensting. Water is flowing on Hensting Lane. Only a small amount of rain (between 10 and 20mm) is forecast to affect Hampshire between Monday 09/03/2026 and Friday 13/03/2026. Over the weekend and into next week, further unsettled weather is possible. Groundwater levels in Twyford and Hensting will continue falling this week, but could rise during the second half of March if further heavy rain affects the area. We are closely monitoring the situation. Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed. This message will be updated by 18:00 16/03/2026.

Groundwater

Groundwater levels in the Salisbury Plain are continuing to recede. Levels are still high, flooding of fields and roads is still possible. Levels remain reactive to further rainfall. Where groundwater is near the surface, intense rainfall will lead to surface water flooding. We are closely monitoring the situation. Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed . This message will be updated by 11:00AM on 23rd 2026 or as the situation changes.

River Bourne

This is a Flood Alert update. River levels remain high at the Salisbury Bourne river gauge following the recent rainfall and high groundwater levels. Flooding is still possible. Areas most at risk include tributaries between Aughton and Laverstock, with low lying land and roads expected to be most affected. No rainfall is forecast over the next few days. We will continue to monitor the situation. Please avoid using low lying footpaths and any bridges near local watercourses, and do not attempt to walk, cycle or drive through flood water. Never drive through flood water, just 30cm of fast flowing water is enough to move your car. Check local authority websites for road closures. This message will be updated by 11:00 AM on Tuesday 17th March 2026 or as the situation changes.

Groundwater

High groundwater levels may lead to flooding.  Flooding is possible . A small amount of rain (13mm) fell on Thursday night.  Groundwater is now very close to the level we expect flooding to affect cellars of a small number of properties in Bishops Sutton and these impacts begin during the next 3 days. Impacts to septic tanks and flooding of roads is possible. Only a small amount of rain is forecast from Friday 13/03/2026 to Tuesday 17/03/2026. Groundwater levels may rise slightly in response to rainfall already recorded and will remain high throughout March 2026.  We are closely monitoring the situation .  Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed .  This message will be updated by 6:00PM on 20 March 2026 or as the situation changes.

Groundwater

Groundwater levels in the Cranborne Chase area are slowly receding, but remain over the flood alert thresholds. Flooding of fields and roads is still possible. Groundwater levels remain responsive to rainfall. Where groundwater is near the surface, intense rainfall will lead to surface water flooding. We are closely monitoring the situation. Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed . This message will be updated by 11:00AM on 23rd March 2026 or as the situation changes.

Groundwater

Groundwater levels in Kings Somborne and Little Somborne are high but slowly falling. At the borehole in Kings Somborne, the level has fallen by 19cm in the last week. Groundwater has now fallen below the level we expect cellar flooding to occur in the village. However, residual flooding impacts may still be ongoing. Mostly dry weather is forecast on Tuesday 10/03/2026, Wednesday 11/03/2026 and Saturday 14/03/2026. On Thursday 12/03/2026 and Friday 13/03/2026, further rain (between 20 and 25mm) is expected. If heavy rain affects the area, further cellar flooding impacts could occur from the weekend. We are closely monitoring the situation. Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed. This message will be updated by 18:00 17/03/2026.

Groundwater

Groundwater levels in the Meon Valley are high but slowly falling. At the borehole at Pound Lane, Meonstoke, the level has fallen by 85cm in the last week. Residual flooding could be affecting the electricity sub station in Rectory Lane. Water may still be flowing across Rectory Lane and behind the Buck's Head Pub. Mostly dry weather is forecast on Tuesday 10/03/2026, Wednesday 11/03/2026 and Saturday 14/03/2026. On Thursday 12/03/2026 and Friday 13/03/2026, further rain (between 20 and 25mm) is expected. Groundwater flooding impacts could re-occur during the next week if heavy rain affects the Meon Valley. We are closely monitoring the situation. Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed. This message will be updated by 18:00 17/03/2026.

Groundwater

Groundwater levels in Bramdean and Cheriton are high but slowly falling. Flooding is affecting cellars of a small number of properties in Cheriton. Septic tanks will be struggling to operate effectively. Only a small amount of rain (between 10 and 20mm) is forecast to affect Hampshire between Monday 09/03/2026 and Friday 13/03/2026. Over the weekend and into next week, further unsettled weather is possible. Groundwater levels in Bramdean and Cheriton will continue falling this week, but could rise during the second half of March if further heavy rain affects the area. We are closely monitoring the situation. Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed. This message will be updated by 18:00 16/03/2026.

Groundwater

High groundwater levels may lead to flooding.  Flooding is possible . Light rain (10mm) was recorded in the last week.  At the borehole in Oakley, the level has risen by 10cm in the last week. Flooding is affecting the ability of septic tanks to operate effectively. The River Test will be flowing in Deane and Ashe. Groundwater is now very close to the level we expect cellar flooding in Deane. From Thursday 12/03/2026 into Friday 13/03/2026, between 15 and 20mm of rain is expected to affect Hampshire. Saturday 14/03/2026 and Sunday 15/03/2026 are expected to be mostly dry. If heavy rain affects the area, cellar flooding in Deane is likely from this weekend. Groundwater levels will remain high throughout March.  We are closely monitoring the situation .  Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed , including pumps used to help reduce water levels.  This message will be updated by 6:00PM on 18 March 2026 or as the situation changes.

Groundwater

Groundwater levels in the Candovers and Old Alresford are high but relatively stable. Flooding is expected to be affecting the ability of septic tanks to operate effectively. In Preston Candover and Old Alresford, a small number of properties will be experiencing cellar flooding. Mostly dry weather is forecast on Tuesday 10/03/2026, Wednesday 11/03/2026 and Saturday 14/03/2026. On Thursday 12/03/2026 and Friday 13/03/2026, further rain (between 20 and 25mm) is expected. Groundwater levels will remain high and may increase slightly over the next week. We are closely monitoring the situation. Residents in Preston Candover and Old Alresford are advised to prepare property resilience measures and ensure that pumps are working where they have been installed, in case groundwater levels begin to rise once more. This message will be updated by 18:00 17/03/2026.

Groundwater

Groundwater levels in Denmead are high but slowly falling. At the borehole at Rookwood Farm, the level has fallen by 70cm in the last week. Water is expected to be affecting Anmore Road and Mill Close. High groundwater levels could affect the sewage network from operating as effectively. On Thursday 12/03/2026 into Friday 13/03/2026, between 15 and 20mm of rain is forecast to affect Hampshire. Drier weather is expected over the weekend. If heavy rain affects Denmead, ongoing flooding impacts will be prolonged. We are closely monitoring the situation. Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed. This message will be updated by 18:00 18/03/2026.

Groundwater

Groundwater levels in Hambledon are high but slowly falling. At the borehole at Whitedale Farm, the level has fallen by 1.8m in the last week. Flooding is expected to be affecting cellars in East Street and West Street. Sewerage system impacts are expected to be ongoing in the village. From Thursday 12/03/2026 into Friday 13/03/2026, between 15 and 20mm of rain is forecast. Drier weather is expected over the weekend. If heavy rain affects Hambledon, ongoing flooding impacts will be prolonged. We are closely monitoring the situation and liaising with Hambledon Flood Action Group. Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed. This message will be updated by 18:00 18/03/2026.

Groundwater

Groundwater levels in Finchdean, Dean Lane End and Rowlands Castle are slowly falling. In the last week, the level at the borehole in Finchdean has fallen by 8cm. Flooding is expected to be affecting a small number of cellars in Finchdean, Dean Lane End and Rowlands Castle. Road flooding is expected to be ongoing. Sewerage system impacts could also be possible. Only a small amount of rain (between 10 and 20mm) is forecast to affect Hampshire between Monday 09/03/2026 and Friday 13/03/2026. Over the weekend and into next week, further unsettled weather is possible. Groundwater levels are expected to slowly fall this week, but could begin rising in the second half of March if heavy rain affects the valley. We are closely monitoring the situation. Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed. This message will be updated by 18:00 16/03/2026.

Groundwater

Groundwater levels in Hursley are high but relatively stable. Widespread cellar flooding and sewerage system impacts are expected to be ongoing. Groundwater is currently close to the level that we expect isolated properties could experience internal ground floor flooding. Only a small amount of rain (between 10 and 20mm) is forecast to affect Hampshire between Monday 09/03/2026 and Friday 13/03/2026. Over the weekend and into next week, further unsettled weather is possible. Groundwater levels in Hursley will begin falling slowly this week, but further rain will prolong, and could increase, ongoing flooding impacts. We are closely monitoring the situation. Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed. This message will be updated by 18:00 16/03/2026.

Groundwater

High groundwater levels may lead to flooding.  Flooding is possible . Little rain (7mm) has been recorded in the last week.  Cellar flooding is expected to be occurring in Appleshaw, Hatherden and possibly Penton Grafton. Sewerage system impacts are ongoing in Appleshaw and Penton Mewsey. The main road into Penton Grafton is flooded, and water is affecting Deacon and Down Road, Kimpton. From Thursday 12/03/2026 into Friday 13/03/2026, between 15 and 20mm of rain is expected to affect Hampshire. Drier weather is expected over the weekend. Groundwater levels are expected to remain very high throughout March. Flooding impacts will likely continue into April.  We are closely monitoring the situation .  Residents are advised to prepare property resilience measures and ensure that pumps are working where they have been installed . Please remove any valuables stored in cellars.  This message will be updated by 6:00PM on 18 March 2026 or as the situation changes.

Groundwater

Groundwater levels are high but stable at our Farringdon borehole near Alton, and flooding of low-lying areas and roads is possible. We expect levels to remain high over the coming days and levels will remain sensitive to further rainfall. Due to the nature of groundwater flooding, this situation could continue for several weeks or longer. We are closely monitoring rainfall and groundwater levels. Residents are advised to prepare property flood resilience measures and ensure that pumps are working where they have been installed. Take particular care when driving through floodwater both for your own safety and to prevent flooding to others. This message will be updated by 12:00PM, on the 17 March 2026, or as the situation changes.