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Flood Warning Gap

When will national surface water warnings arrive?

National surface water flood forecasting is advancing through the Flood Forecasting Centre, a Met Office and Environment Agency partnership, and is being improved in phases over the coming years. It's welcome progress at the national scale. It complements, rather than replaces, the property-level operational warnings organisations need to act on a specific site today.

Last updated September 14, 2026

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What is national surface water forecasting?

The Flood Forecasting Centre (Met Office + Environment Agency) produces the daily Flood Guidance Statement and national surface water risk forecasting for emergency responders. It gives an area-level national picture of where surface water flooding is likely.

The national picture

How national surface water forecasting is improving

Investment is improving the resolution and lead time of national surface water forecasting in phases over the coming years, genuine, welcome progress at the national scale.

Better resolution, longer lead time

National programmes are working to sharpen the accuracy and timing of surface water forecasts, building on the daily Flood Guidance Statement.

Built for responders, not individual properties

National forecasting is designed to support emergency responders and area-level planning, not to tell a specific property owner that their site will flood.

Today, and alongside

Why property-level warnings matter today, and alongside

An area-level national forecast tells a region flooding is likely; it doesn't tell a specific business whether its site will flood, or exactly when.

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See risk down to the asset, not just the area

Previsico's property-level forecasts show likelihood, severity and timing per asset, up to 48 hours ahead, refreshed hourly at 25m resolution, so you know exactly which sites need attention.

Works alongside the national picture as it improves

Previsico's operational warnings complement national surface water forecasting today, and continue to add value as the national programme advances.

Questions about national surface water forecasting

Straight answers to how national progress and Previsico's warnings fit together.

Ready when you are

Get property-level warnings for your sites now.

See how Previsico's property-level warnings work alongside the improving national picture, live, site-specific, and ready today.

Last updated August 2026. Part of The Flood Warning Gap series.

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