Flood Alert Issued for River Adur West Branch in West Sussex

Alert Details

The Environment Agency has issued a flood alert (Severity Level 3) for the River Adur West Branch. This alert indicates that flooding is possible and residents should remain vigilant as persistent rain affects the region.

Affected Areas

The alert specifically covers the Solent and South Downs area within West Sussex. The primary geographic focus is the West Branch of the River Adur, with impacts expected on fields and rural roads located between Coolham and Henfield.

What You Should Do

Residents are advised to avoid using roads that are prone to flooding. Specifically, motorists should avoid Slaughter Bridge and Coolham Road. Residents should monitor local water levels and stay updated on weather forecasts, as unsettled weather is expected to continue throughout the month of February.

Expected Conditions

Persistent rain is forecast to continue until 17:00 on February 15, 2026. While only a small rise in the river level is currently expected, minor flood impacts are anticipated for rural roads and agricultural land. River levels are projected to peak and begin falling by the early hours of Monday morning. Although isolated showers on Monday and Tuesday may allow levels to return toward normal, widespread rain forecast for Wednesday could cause flood risks to return.

Timeline

• Alert Issued: 13:09 on February 15, 2026
• Rain Duration: Persistent rainfall expected until 17:00 on February 15, 2026
• Peak River Levels: Expected by 02:00 on February 16, 2026
• Next Update: The Environment Agency will provide an updated message by 20:00 on February 16, 2026