River Levels

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River Levels

Thorney Island to West Itchenor

Message issued at 4:19pm, Wednesday 4th February

This is an archived message. The status has changed more recently.

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Flooding possible. Be prepared.

Flood alert

High tides on Thursday may lead to flooding. 
Flooding is possible for 1 hour either side of Thursday's early morning tide at 01:15 on 05/02/2026. 
The weather increases tide table values by 0.34 m. Total forecast tide is 5.24 metres Chart Datum (2.50 mAOD) at Chichester Harbour. Strong Easterly Force 6 wind. The tide will flood Shore Road. At Bosham High Street, water will be near to or flood front door steps. Gardens or land of shore side properties around the Harbour could also be affected. Thursday's tide at 13:30 05/02/2026 is forecast to be 7 cm lower (2.43 mAOD). Flood impacts are predicted each high tide until Friday. 
We are closely monitoring the situation . 
Consider activating any flood protection products you may have . 
This message will be updated by 6:00PM on 05 February 2026 or as the situation changes.

Information supplied by the Environment Agency

This information last updated 4:19pm, Wednesday 4th February.

This page is a dedicated URL for a specific message issued at a particular time. You should not bookmark this page, as the current situation may have changed since this message was issued.

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Most recent flood warnings and alerts for Thorney Island to West Itchenor

Flood Warning Area Details

Coastal areas between Thorney Island and West Itchenor, including Prinsted, Nutbourne, Chidham, Bosham, Bosham Hoe, Dell Quay, Salterns and Ellanore Lane

Region: Solent and South Downs

Country: England

Counties covered: West Sussex

Watercourses covered: Chichester Harbour

Area covered by this alert location

The area bounded in blue on the map shows the area covered by flood alerts and warnings for Thorney Island to West Itchenor.

Note: the area shown on the map is the area covered by flood alerts and warnings. It is not a live map of current flooding. The area covered broadly equates to the area where the risk of flooding in any year is greater than 1% (the "hundred year" flood risk).

Other Nearby Flood Warning Locations

Thorney Island, Southbourne and Nutbourne
Coastal areas of Thorney Island, Southbourne and Nutbourne

No current or recent warnings.

Bosham and West Itchenor
Coastal areas of Bosham and West Itchenor, including Chidham, Broadbridge, and Bosham Hoe

No current or recent warnings.

West Wittering and East Wittering coast
Coastal areas of West Wittering and East Wittering, between Cakeham Road, Stocks Road and the sea. Including West Strand, East Strand, Marine Drive, Marine Close, Tamarisk Walk, and West Bracklesham Drive

No current or recent warnings.

Bracklesham coast
Coast at Bracklesham, including East Bracklesham Drive, Tideway, Bracklesham Caravan and Boat Park, and Medmerry Park.

No current or recent warnings.

Bosham on the Bosham Stream
The Bosham Stream at Bosham, including the Old Bosham Ditch, Shore Road, and Churchfield Stream

No current or recent warnings.

Bosham Stream
Bosham Stream from West Ashling to Bosham including Churchfield Stream

No current or recent warnings.

Bridge Road, Emsworth
The West Brook at Bridge Road, Emsworth

No current or recent warnings.

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