River Itchen and tributaries from Headbourne Worthy to Otterbourne.
See below for historical flood warnings, or use the live map to check the latest warnings across the UK.
The orange highlighted area on the map below outlines the area covered by this Flood Alert.
Number of historic Flood Alerts that have previously been recorded for this area.
River Itchen
High river levels overnight may lead to flooding. Flooding is possible on 27 February 2026 as a lot of rain is forecast (7 - 17mm). River levels in the Itchen around Winchester are falling steadily but forecast rain from Thursday evening 26/02/2026 through to Friday morning could increase water levels. Flooding could affect North Walls Recreation Ground and River Park. Winchester City Council have installed flood barriers at River Park, and Water Lane. Barriers have been removed at Park Avenue as the situation is improving. Flood risk should start to diminish from Friday afternoon. We are monitoring rainfall and river levels and liaising with Winchester City Council regarding sluice operation. Don't put yourself or others at risk . Flood water could be deep. Winnall Moors Nature Reserve may be closed. This message will be updated by 6:00PM on 27 February 2026 or as the situation changes.
River Itchen
Forecast high river levels tomorrow evening may lead to flooding. Flooding is possible on 27 February 2026 as a lot of rain is forecast (10 to 20mm). River levels in the Itchen around Winchester are falling steadily but forecast rain from Thursday evening 26/02/2026 through to Friday morning could increase water levels. Flooding could affect North Walls Recreation Ground and River Park. Winchester City Council have installed flood barriers at Park Avenue, River Park, and Water Lane. Flood risk should start to diminish over the weekend. We are monitoring rainfall and river levels and liaising with Winchester City Council regarding sluice operation. Don't put yourself or others at risk. Flood water could be deep. Winnall Moors Nature Reserve may be closed. This message will be updated by 6:00 PM 26 February 2026.
River Itchen
High river levels over the next two days may lead to flooding. Flooding is possible on 23/02/2026, following a very wet January and February. Flooding could affect North Walls Recreation Ground and River Park. Winchester City Council have installed flood barriers at Park Avenue, River Park, and Water Lane. From Monday (23/02/2026) to Wednesday (25/02/2026), virtually no rain is forecast, giving the river a chance to recover. Further rainfall is forecast on Thursday & Friday (26/02/2026 & 27/02/2026); if this is realised the river may rise again. River levels will remain higher than normal throughout February and into March. We are liaising with emergency services and local authorities including Winchester City Council regarding sluice operation. This message will be updated by 18:00 on 25/02/2026.
River Itchen
High river levels over the next two days may lead to flooding. Flooding is possible on 22/02/2026 because of above average rainfall in January and February. Flooding could affect North Walls Recreation Ground and River Park. Winchester City Council have installed flood barriers at Park Avenue, River Park, and Water Lane. Tomorrow, some areas may receive more heavy rain. Up to 18mm is possible. The Flow in the Itchen has been slowly decreasing, but any further rainfall will cause it to rise again. From Monday 23/02/26 to Wednesday 25/02/26, minimal rain is forecast each day (up to 1mm). This will give the river a chance to recover. We are liaising with emergency services and local authorities including Winchester City Council regarding sluice operation. Don't put yourself or others at risk. Flood water could be deep. Winnall Moors Nature reserve may be closed. This message will be updated by 18:00 on 23/02/2026.
River Itchen
High river levels over the next three days may lead to flooding. Flooding is possible on 19/02/2025 because of above average rainfall in January and February. Flooding could affect North Walls Recreation Ground and River Park. Winchester City Council have installed flood barriers at Park Avenue, River Park, and Water Lane. Only a small amount of rain is forecast over the next 5 days. River levels will remain higher than normal throughout February and into March. We are liaising with emergency services and local authorities including Winchester City Council regarding sluice operation. Don't put yourself or others at risk. Flood water could be deep. Winnall Moors Nature reserve may be closed. This message will be updated by 21/02/2026 18:00.
River Itchen
High river levels on Wednesday may lead to flooding. Flooding is possible on 18 February 2026 as a lot of rain is forecast (25mm). Flooding could affect North Walls Recreation Ground and River Park. Winchester City Council have installed flood barriers at Park Avenue, River Park, and Water Lane. If heavy rain affects the River Itchen in Winchester, then river levels will rise. Small amounts of rain are forecast from Thursday (19/02/2026) to Saturday (21/02/2026). River levels will remain higher than normal throughout February and into March. We are liaising with emergency services and local authorities including Winchester City Council regarding sluice operation. Don't put yourself or others at risk . Flood water could be deep. Winnall Moors Nature Reserve may be closed. This message will be updated by 6:00PM on 19 February 2026 or as the situation changes.
River Itchen
High river levels on Sunday may lead to flooding. Flooding is possible on Sunday 15/02/2026, with 15mm of rain forecast. Flooding is continuing to affect North Walls Recreation Ground and River Park. Winchester City Council have installed flood barriers at Park Avenue, River Park, and Water Lane. If rain falls as forecast today (Sunday 15/02/2026), river levels will rise. More rainfall is forecast on Tuesday (17/02/2026) and Wednesday (18/02/2026). River levels will remain high for the next few weeks. We are monitoring rainfall and river levels. Don't put yourself or others at risk. Flood water could be deep. Winnall Moors Nature Reserve may be closed. This message will be updated by 6:00PM on 17 February 2026 or as the situation changes.
River Itchen
High river levels on Friday may lead to flooding. Flooding is possible on 13 February 2026 as rain is forecast (15mm). Flooding is continuing to affect North Walls Recreation Ground and River Park. Winchester City Council have installed a number of flood barriers around Park Avenue, River Park, and Water Lane. If rain falls as forecast this afternoon (Friday 13/02/2026), river levels will rise. Further rainfall is forecast on Sunday (15/02/2026). River levels will remain high for the next few weeks. We are monitoring rainfall and river levels . Don't put yourself or others at risk . Flood water could be deep. Winnall Moors Nature Reserve may be closed. This message will be updated by 6:00PM on 15 February 2026 or as the situation changes.
River Itchen
High river levels on Wednesday may lead to flooding. Flooding is possible on 11 February 2026 as a lot of rain (250mm) has fallen in January and February. Flooding is continuing to affect North Walls Recreation Ground and River Park. Winchester City Council have installed a number of flood barriers around Park Avenue, River Park, and Water Lane. Small amounts of rainfall are forecast for the next two days. Up to a further 30mm of rainfall is forecast on Friday (13/02/2026). River levels will remain high for the next few weeks. We are liaising with emergency services and local authorities . Don't put yourself or others at risk . Flood water could be deep. Winnall Moors Nature Reserve may be closed. This message will be updated by 4:00PM on 13 February 2026 or as the situation changes.
River Itchen
High river levels on Monday may lead to flooding. Flooding is possible on 09 February 2026 as 15mm of rainfall is forecast. Flooding could affect North Walls Recreation Ground and River Park. It is forecast to rain this afternoon (09/02/26), and further rain is forecast for the next couple of days. River levels and flood risk will remain high for the next few days. Winchester City Council have installed a number of flood barriers and will be installing further barriers today around Park Avenue, River Park and Water Lane. We are liaising with emergency services and local authorities , including Winchester City Council regarding the installation of barriers. Don't put yourself or others at risk . Flood water could be deep. Winnall Moors Nature reserve may be closed. This message will be updated by 4:00PM on 11 February 2026 or as the situation changes.
River Itchen
Flooding is possible in this area. Monitor local water levels and weather conditions. Avoid using low lying footpaths or entering areas prone to flooding. Start acting on your flood plan if you have one. Environment Agency Flood Warning Officers set the river or tidal levels that have triggered this message. During industrial action this message has been automatically issued based on rising river or tidal levels.
River Itchen
Flooding is possible in this area. Monitor local water levels and weather conditions. Avoid using low lying footpaths or entering areas prone to flooding. Start acting on your flood plan if you have one. The Environment Agency Flood Warning System has issued this message based on rising river or tidal levels. We are temporarily automating our messages due to industrial action.