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This is an archived message. The status has changed more recently.
Flooding possible. Be prepared.
High river levels on Wednesday may lead to flooding.
Flooding is possible on 18 February 2026 from 21:00, as a lot of rain (35mm) is forecast today.
Flooding could affect fields, roads and gardens of Bosham Lane, near the Millstream Hotel, Brook Avenue, and Critchfield Road, Bosham. Flood water will also affect fields near Ratham Lane, Broadbridge and could affect Mill properties in West Ashling. Rain is forecast to continue until 04:00 on 19/02/2026. River levels and flood risk should begin to reduce in Bosham by 11:00 on 19/02/2026.
We are clearing blockages from debris screens and operating our structure near the A27 to reduce flood risk in Bosham.
Don't put yourself or others at risk . Avoid roads that flood (Bosham Lane). Report blockages to 0800 80 70 60.
This message will be updated by 6:00PM on 19 February 2026 or as the situation changes.
Information supplied by the Environment Agency
This information last updated 8:53pm, Wednesday 18th 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.
Warning no longer in force
Thu 19 Feb 2026, 12:33pm
Flood alert
Wed 18 Feb 2026, 8:53pm
Bosham Stream from West Ashling to Bosham including Churchfield Stream
Region: Solent and South Downs
Country: England
Counties covered: West Sussex
Watercourses covered: Bosham Stream
The area bounded in blue on the map shows the area covered by flood alerts and warnings for Bosham Stream.
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).
No current or recent warnings.
No current or recent warnings.
No current or recent warnings.
No current or recent warnings.
No current or recent warnings.