Christchurch Harbour Flood alert 4:10pm, Friday 20th February

Flooding possible. Be prepared.

Flood alert

High tides today may lead to flooding.
Flooding is possible 9:41AM to 1:41PM on the 21th February 2026.
Areas most at risk include Christchurch Harbour and tidal stretches of the Lower Stour and Avon. The detailed tidal forecast for those who use it is for a peak level at Christchurch Harbour of 1.26mAODN at 11:41AM, 21st February 2026, with force 4 South Westerly winds. (mAODN is height above average sea level.). After this high tide, conditions become more settled.
We are closely monitoring the situation .
Take care and avoid walking, cycling or driving through flood water .
This message will be updated by 4:00PM on 21 February 2026 or as the situation changes.

Information supplied by the Environment Agency

This information last updated 4:10pm, Friday 20th February.

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Most recent flood warnings and alerts for Christchurch Harbour

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Flood Warning Area Details

Christchurch Harbour and tidal stretches of the Lower Stour and Avon

Region: Wessex

Country: England

Counties covered: Bournemouth, Christchurch and Poole

Watercourses covered: English Channel

Area covered by this alert location

The area bounded in blue on the map shows the area covered by flood alerts and warnings for Christchurch Harbour.

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).